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1 | /*++\r | |
2 | \r | |
3 | Copyright (c) 2006 - 2007, Intel Corporation\r | |
4 | All rights reserved. This program and the accompanying materials\r | |
5 | are licensed and made available under the terms and conditions of the BSD License\r | |
6 | which accompanies this distribution. The full text of the license may be found at\r | |
7 | http://opensource.org/licenses/bsd-license.php\r | |
8 | \r | |
9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
11 | \r | |
12 | Module Name:\r | |
13 | \r | |
14 | Variable.h\r | |
15 | \r | |
16 | Abstract:\r | |
17 | \r | |
18 | --*/\r | |
19 | \r | |
20 | #ifndef _VARIABLE_H\r | |
21 | #define _VARIABLE_H\r | |
22 | \r | |
23 | //\r | |
24 | // Statements that include other header files\r | |
25 | //\r | |
26 | \r | |
27 | #include <PiDxe.h>\r | |
28 | \r | |
29 | #include <Protocol/VariableWrite.h>\r | |
30 | #include <Protocol/Variable.h>\r | |
31 | \r | |
32 | #include <Library/BaseMemoryLib.h>\r | |
33 | #include <Library/MemoryAllocationLib.h>\r | |
34 | #include <Library/DebugLib.h>\r | |
35 | #include <Library/UefiRuntimeLib.h>\r | |
36 | #include <Library/UefiDriverEntryPoint.h>\r | |
37 | #include <Library/UefiBootServicesTableLib.h>\r | |
38 | #include <Library/UefiLib.h>\r | |
39 | #include <Library/BaseLib.h>\r | |
40 | #include <VariableFormat.h>\r | |
41 | \r | |
42 | #define VARIABLE_STORE_SIZE (64 * 1024)\r | |
43 | #define SCRATCH_SIZE (4 * 1024)\r | |
44 | \r | |
45 | //\r | |
46 | // Define GET_PAD_SIZE to optimize compiler\r | |
47 | //\r | |
48 | #if ((ALIGNMENT == 0) || (ALIGNMENT == 1))\r | |
49 | #define GET_PAD_SIZE(a) (0)\r | |
50 | #else\r | |
51 | #define GET_PAD_SIZE(a) (((~a) + 1) & (ALIGNMENT - 1))\r | |
52 | #endif\r | |
53 | \r | |
54 | #define GET_VARIABLE_NAME_PTR(a) (CHAR16 *) ((UINTN) (a) + sizeof (VARIABLE_HEADER))\r | |
55 | \r | |
56 | typedef enum {\r | |
57 | Physical,\r | |
58 | Virtual\r | |
59 | } VARIABLE_POINTER_TYPE;\r | |
60 | \r | |
61 | typedef struct {\r | |
62 | VARIABLE_HEADER *CurrPtr;\r | |
63 | VARIABLE_HEADER *EndPtr;\r | |
64 | VARIABLE_HEADER *StartPtr;\r | |
65 | BOOLEAN Volatile;\r | |
66 | } VARIABLE_POINTER_TRACK;\r | |
67 | \r | |
68 | typedef struct {\r | |
69 | EFI_PHYSICAL_ADDRESS VolatileVariableBase;\r | |
70 | EFI_PHYSICAL_ADDRESS NonVolatileVariableBase;\r | |
71 | EFI_LOCK VariableServicesLock;\r | |
72 | } VARIABLE_GLOBAL;\r | |
73 | \r | |
74 | typedef struct {\r | |
75 | VARIABLE_GLOBAL VariableGlobal[2];\r | |
76 | UINTN VolatileLastVariableOffset;\r | |
77 | UINTN NonVolatileLastVariableOffset;\r | |
78 | UINT32 FvbInstance;\r | |
79 | } ESAL_VARIABLE_GLOBAL;\r | |
80 | \r | |
81 | extern ESAL_VARIABLE_GLOBAL *mVariableModuleGlobal;\r | |
82 | \r | |
83 | //\r | |
84 | // Functions\r | |
85 | //\r | |
86 | EFI_STATUS\r | |
87 | EFIAPI\r | |
88 | VariableCommonInitialize (\r | |
89 | IN EFI_HANDLE ImageHandle,\r | |
90 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
91 | )\r | |
92 | ;\r | |
93 | \r | |
94 | EFI_STATUS\r | |
95 | EFIAPI\r | |
96 | VariableServiceInitialize (\r | |
97 | IN EFI_HANDLE ImageHandle,\r | |
98 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
99 | )\r | |
100 | ;\r | |
101 | \r | |
102 | VOID\r | |
103 | EFIAPI\r | |
104 | VariableClassAddressChangeEvent (\r | |
105 | IN EFI_EVENT Event,\r | |
106 | IN VOID *Context\r | |
107 | )\r | |
108 | ;\r | |
109 | \r | |
110 | EFI_STATUS\r | |
111 | EFIAPI\r | |
112 | GetVariable (\r | |
113 | IN CHAR16 *VariableName,\r | |
114 | IN EFI_GUID * VendorGuid,\r | |
115 | OUT UINT32 *Attributes OPTIONAL,\r | |
116 | IN OUT UINTN *DataSize,\r | |
117 | OUT VOID *Data,\r | |
118 | IN VARIABLE_GLOBAL * Global,\r | |
119 | IN UINT32 Instance\r | |
120 | )\r | |
121 | ;\r | |
122 | \r | |
123 | EFI_STATUS\r | |
124 | EFIAPI\r | |
125 | GetNextVariableName (\r | |
126 | IN OUT UINTN *VariableNameSize,\r | |
127 | IN OUT CHAR16 *VariableName,\r | |
128 | IN OUT EFI_GUID *VendorGuid,\r | |
129 | IN VARIABLE_GLOBAL *Global,\r | |
130 | IN UINT32 Instance\r | |
131 | )\r | |
132 | ;\r | |
133 | \r | |
134 | EFI_STATUS\r | |
135 | EFIAPI\r | |
136 | SetVariable (\r | |
137 | IN CHAR16 *VariableName,\r | |
138 | IN EFI_GUID *VendorGuid,\r | |
139 | IN UINT32 Attributes,\r | |
140 | IN UINTN DataSize,\r | |
141 | IN VOID *Data,\r | |
142 | IN VARIABLE_GLOBAL *Global,\r | |
143 | IN UINTN *VolatileOffset,\r | |
144 | IN UINTN *NonVolatileOffset,\r | |
145 | IN UINT32 Instance\r | |
146 | )\r | |
147 | ;\r | |
148 | \r | |
149 | EFI_STATUS\r | |
150 | EFIAPI\r | |
151 | QueryVariableInfo (\r | |
152 | IN UINT32 Attributes,\r | |
153 | OUT UINT64 *MaximumVariableStorageSize,\r | |
154 | OUT UINT64 *RemainingVariableStorageSize,\r | |
155 | OUT UINT64 *MaximumVariableSize,\r | |
156 | IN VARIABLE_GLOBAL *Global,\r | |
157 | IN UINT32 Instance\r | |
158 | )\r | |
159 | ;\r | |
160 | \r | |
161 | #endif\r |