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8d3a5c82 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--*/\r
19\r
20#ifndef _VARIABLE_H\r
21#define _VARIABLE_H\r
22\r
23#include <PiDxe.h>\r
24#include <Protocol/VariableWrite.h>\r
25#include <Protocol/FaultTolerantWriteLite.h>\r
26#include <Protocol/FirmwareVolumeBlock.h>\r
27#include <Protocol/Variable.h>\r
28#include <Library/PcdLib.h>\r
29#include <Library/UefiDriverEntryPoint.h>\r
30#include <Library/DxeServicesTableLib.h>\r
31#include <Library/UefiRuntimeLib.h>\r
32#include <Library/DebugLib.h>\r
33#include <Library/BaseMemoryLib.h>\r
34#include <Library/FvbServiceLib.h>\r
35#include <Library/UefiBootServicesTableLib.h>\r
36#include <Library/UefiLib.h>\r
37#include <Library/BaseLib.h>\r
38#include <Library/MemoryAllocationLib.h>\r
39#include <Library/HobLib.h>\r
40#include <Common/FlashMap.h>\r
41#include <Guid/FlashMapHob.h>\r
42\r
43//\r
44// BugBug: We need relcate the head file.\r
45//\r
46#include <Common/Variable.h>\r
47\r
48#define VARIABLE_RECLAIM_THRESHOLD (1024)\r
49\r
50#define VARIABLE_STORE_SIZE (64 * 1024)\r
51#define SCRATCH_SIZE (4 * 1024)\r
52\r
53//\r
54// Define GET_PAD_SIZE to optimize compiler\r
55//\r
56#if ((ALIGNMENT == 0) || (ALIGNMENT == 1))\r
57#define GET_PAD_SIZE(a) (0)\r
58#else\r
59#define GET_PAD_SIZE(a) (((~a) + 1) & (ALIGNMENT - 1))\r
60#endif\r
61\r
62#define GET_VARIABLE_NAME_PTR(a) (CHAR16 *) ((UINTN) (a) + sizeof (VARIABLE_HEADER))\r
63\r
64typedef enum {\r
65 Physical,\r
66 Virtual\r
67} VARIABLE_POINTER_TYPE;\r
68\r
69typedef struct {\r
70 VARIABLE_HEADER *CurrPtr;\r
71 VARIABLE_HEADER *EndPtr;\r
72 VARIABLE_HEADER *StartPtr;\r
73 BOOLEAN Volatile;\r
74} VARIABLE_POINTER_TRACK;\r
75\r
76typedef struct {\r
77 EFI_PHYSICAL_ADDRESS VolatileVariableBase;\r
78 EFI_PHYSICAL_ADDRESS NonVolatileVariableBase;\r
79 EFI_LOCK VariableServicesLock;\r
80} VARIABLE_GLOBAL;\r
81\r
82typedef struct {\r
83 VARIABLE_GLOBAL VariableGlobal[2];\r
84 UINTN VolatileLastVariableOffset;\r
85 UINTN NonVolatileLastVariableOffset;\r
86 UINT32 FvbInstance;\r
87} ESAL_VARIABLE_GLOBAL;\r
88\r
89extern ESAL_VARIABLE_GLOBAL *mVariableModuleGlobal;\r
90\r
91//\r
92// Functions\r
93//\r
94EFI_STATUS\r
95EFIAPI\r
96VariableCommonInitialize (\r
97 IN EFI_HANDLE ImageHandle,\r
98 IN EFI_SYSTEM_TABLE *SystemTable\r
99 );\r
100\r
101EFI_STATUS\r
102EFIAPI\r
103VariableServiceInitialize (\r
104 IN EFI_HANDLE ImageHandle,\r
105 IN EFI_SYSTEM_TABLE *SystemTable\r
106 );\r
107\r
108VOID\r
109EFIAPI\r
110VariableClassAddressChangeEvent (\r
111 IN EFI_EVENT Event,\r
112 IN VOID *Context\r
113 );\r
114\r
115EFI_STATUS\r
116EFIAPI\r
117GetVariable (\r
118 IN CHAR16 *VariableName,\r
119 IN EFI_GUID * VendorGuid,\r
120 OUT UINT32 *Attributes OPTIONAL,\r
121 IN OUT UINTN *DataSize,\r
122 OUT VOID *Data,\r
123 IN VARIABLE_GLOBAL * Global,\r
124 IN UINT32 Instance\r
125 );\r
126\r
127EFI_STATUS\r
128EFIAPI\r
129GetNextVariableName (\r
130 IN OUT UINTN *VariableNameSize,\r
131 IN OUT CHAR16 *VariableName,\r
132 IN OUT EFI_GUID *VendorGuid,\r
133 IN VARIABLE_GLOBAL *Global,\r
134 IN UINT32 Instance\r
135 );\r
136\r
137EFI_STATUS\r
138EFIAPI\r
139SetVariable (\r
140 IN CHAR16 *VariableName,\r
141 IN EFI_GUID *VendorGuid,\r
142 IN UINT32 Attributes,\r
143 IN UINTN DataSize,\r
144 IN VOID *Data,\r
145 IN VARIABLE_GLOBAL *Global,\r
146 IN UINTN *VolatileOffset,\r
147 IN UINTN *NonVolatileOffset,\r
148 IN UINT32 Instance\r
149 );\r
150\r
151EFI_STATUS\r
152EFIAPI\r
153QueryVariableInfo (\r
154 IN UINT32 Attributes,\r
155 OUT UINT64 *MaximumVariableStorageSize,\r
156 OUT UINT64 *RemainingVariableStorageSize,\r
157 OUT UINT64 *MaximumVariableSize,\r
158 IN VARIABLE_GLOBAL *Global,\r
159 IN UINT32 Instance\r
160 );\r
161\r
162EFI_STATUS\r
163GetFvbHandleByAddress (\r
164 IN EFI_PHYSICAL_ADDRESS VariableStoreBase,\r
165 OUT EFI_HANDLE *FvbHandle\r
166 );\r
167\r
168EFI_STATUS\r
169FtwVariableSpace (\r
170 IN EFI_PHYSICAL_ADDRESS VariableBaseAddress,\r
171 IN UINT8 *Buffer,\r
172 IN UINTN BufferSize\r
173 );\r
174\r
175#endif\r