]>
Commit | Line | Data |
---|---|---|
a69a84d3 | 1 | /*++\r |
2 | \r | |
3 | Copyright (c) 2006 - 2008 Intel Corporation. <BR>\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 | Module Name:\r | |
12 | \r | |
13 | Variable.c\r | |
14 | \r | |
15 | Abstract:\r | |
16 | \r | |
17 | PEIM to provide the Variable functionality\r | |
18 | \r | |
19 | --*/\r | |
20 | \r | |
21 | #include <PiPei.h>\r | |
22 | #include <Ppi/PciCfg.h>\r | |
23 | #include <Ppi/PciCfg2.h>\r | |
24 | #include <Library/DebugLib.h>\r | |
25 | \r | |
26 | //\r | |
27 | // Function Prototypes\r | |
28 | //\r | |
29 | EFI_STATUS\r | |
30 | EFIAPI\r | |
31 | PciCfgRead (\r | |
32 | IN EFI_PEI_SERVICES **PeiServices,\r | |
33 | IN EFI_PEI_PCI_CFG_PPI *This,\r | |
34 | IN EFI_PEI_PCI_CFG_PPI_WIDTH Width,\r | |
35 | IN UINT64 Address,\r | |
36 | IN OUT VOID *Buffer\r | |
37 | );\r | |
38 | \r | |
39 | EFI_STATUS\r | |
40 | EFIAPI\r | |
41 | PciCfgWrite (\r | |
42 | IN EFI_PEI_SERVICES **PeiServices,\r | |
43 | IN EFI_PEI_PCI_CFG_PPI *This,\r | |
44 | IN EFI_PEI_PCI_CFG_PPI_WIDTH Width,\r | |
45 | IN UINT64 Address,\r | |
46 | IN OUT VOID *Buffer\r | |
47 | );\r | |
48 | \r | |
49 | EFI_STATUS\r | |
50 | EFIAPI\r | |
51 | PciCfgModify (\r | |
52 | IN EFI_PEI_SERVICES **PeiServices,\r | |
53 | IN EFI_PEI_PCI_CFG_PPI *This,\r | |
54 | IN EFI_PEI_PCI_CFG_PPI_WIDTH Width,\r | |
55 | IN UINT64 Address,\r | |
56 | IN UINTN SetBits,\r | |
57 | IN UINTN ClearBits\r | |
58 | );\r | |
59 | \r | |
60 | //\r | |
61 | // Module globals\r | |
62 | //\r | |
63 | EFI_PEI_PCI_CFG_PPI mPciCfgPpi = {\r | |
64 | PciCfgRead,\r | |
65 | PciCfgWrite,\r | |
66 | PciCfgModify,\r | |
67 | };\r | |
68 | \r | |
69 | EFI_PEI_PPI_DESCRIPTOR mPpiListPciCfg = {\r | |
70 | (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r | |
71 | &gEfiPciCfgPpiInServiceTableGuid,\r | |
72 | &mPciCfgPpi\r | |
73 | };\r | |
74 | \r | |
75 | EFI_STATUS\r | |
76 | EFIAPI\r | |
77 | PeimInitializePciCfg (\r | |
78 | IN EFI_FFS_FILE_HEADER *FfsHeader,\r | |
79 | IN CONST EFI_PEI_SERVICES **PeiServices\r | |
80 | )\r | |
81 | /*++\r | |
82 | \r | |
83 | Routine Description:\r | |
84 | \r | |
85 | Provide the functionality of the variable services.\r | |
86 | \r | |
87 | Arguments:\r | |
88 | \r | |
89 | FfsHeadher - The FFS file header\r | |
90 | PeiServices - General purpose services available to every PEIM.\r | |
91 | \r | |
92 | Returns:\r | |
93 | \r | |
94 | Status - EFI_SUCCESS if the interface could be successfully\r | |
95 | installed\r | |
96 | \r | |
97 | --*/\r | |
98 | {\r | |
99 | //\r | |
100 | // Publish the variable capability to other modules\r | |
101 | //\r | |
102 | return (*PeiServices)->InstallPpi (PeiServices, &mPpiListPciCfg);\r | |
103 | }\r | |
104 | \r | |
105 | EFI_STATUS\r | |
106 | EFIAPI\r | |
107 | PciCfgRead (\r | |
108 | IN EFI_PEI_SERVICES **PeiServices,\r | |
109 | IN EFI_PEI_PCI_CFG_PPI *This,\r | |
110 | IN EFI_PEI_PCI_CFG_PPI_WIDTH Width,\r | |
111 | IN UINT64 Address,\r | |
112 | IN OUT VOID *Buffer\r | |
113 | )\r | |
114 | {\r | |
115 | EFI_PEI_PCI_CFG2_PPI *PciCfg2;\r | |
116 | \r | |
117 | PciCfg2 = (*PeiServices)->PciCfg;\r | |
118 | \r | |
119 | return PciCfg2->Read ((CONST EFI_PEI_SERVICES **)PeiServices, PciCfg2, Width, Address, Buffer);\r | |
120 | }\r | |
121 | \r | |
122 | EFI_STATUS\r | |
123 | EFIAPI\r | |
124 | PciCfgWrite (\r | |
125 | IN EFI_PEI_SERVICES **PeiServices,\r | |
126 | IN EFI_PEI_PCI_CFG_PPI *This,\r | |
127 | IN EFI_PEI_PCI_CFG_PPI_WIDTH Width,\r | |
128 | IN UINT64 Address,\r | |
129 | IN OUT VOID *Buffer\r | |
130 | )\r | |
131 | {\r | |
132 | EFI_PEI_PCI_CFG2_PPI *PciCfg2;\r | |
133 | \r | |
134 | PciCfg2 = (*PeiServices)->PciCfg;\r | |
135 | \r | |
136 | return PciCfg2->Write ((CONST EFI_PEI_SERVICES **)PeiServices, PciCfg2, Width, Address, Buffer);\r | |
137 | }\r | |
138 | \r | |
139 | EFI_STATUS\r | |
140 | EFIAPI\r | |
141 | PciCfgModify (\r | |
142 | IN EFI_PEI_SERVICES **PeiServices,\r | |
143 | IN EFI_PEI_PCI_CFG_PPI *This,\r | |
144 | IN EFI_PEI_PCI_CFG_PPI_WIDTH Width,\r | |
145 | IN UINT64 Address,\r | |
146 | IN UINTN SetBits,\r | |
147 | IN UINTN ClearBits\r | |
148 | )\r | |
149 | {\r | |
150 | EFI_PEI_PCI_CFG2_PPI *PciCfg2;\r | |
151 | \r | |
152 | PciCfg2 = (*PeiServices)->PciCfg;\r | |
153 | \r | |
154 | return PciCfg2->Modify ((CONST EFI_PEI_SERVICES **)PeiServices, PciCfg2, Width, Address, &SetBits, &ClearBits);\r | |
155 | }\r |