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1 | /** @file\r |
2 | Firmware Volume Block Driver for Lakeport Platform.\r | |
3 | \r | |
4 | Firmware volume block driver for FWH or SPI device.\r | |
5 | It depends on which Flash Device Library to be linked with this driver.\r | |
6 | \r | |
7 | Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>\r | |
8 | \r\r | |
9 | This program and the accompanying materials are licensed and made available under\r\r | |
10 | the terms and conditions of the BSD License that accompanies this distribution. \r\r | |
11 | The full text of the license may be found at \r\r | |
12 | http://opensource.org/licenses/bsd-license.php. \r\r | |
13 | \r\r | |
14 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r\r | |
15 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r\r | |
16 | \r\r | |
17 | \r | |
18 | **/\r | |
19 | \r | |
20 | #include <PiDxe.h>\r | |
21 | #include <Library/UefiRuntimeLib.h>\r | |
22 | #include "FvbService.h"\r | |
23 | \r | |
24 | extern FWB_GLOBAL mFvbModuleGlobal;\r | |
25 | \r | |
26 | /**\r | |
27 | Call back function on EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE event.\r | |
28 | \r | |
29 | Fixup internal data so that the driver is callable in EFI runtime\r | |
30 | in virtual mode. Convert the mFvbModuleGlobal date items to there\r | |
31 | virtual address.\r | |
32 | \r | |
33 | @param Event Event whose notification function is being invoked.\r | |
34 | @param Context The context of the Notification context. Not used in\r | |
35 | this call back function.\r | |
36 | \r | |
37 | **/\r | |
38 | VOID\r | |
39 | EFIAPI\r | |
40 | FvbVirtualddressChangeEvent (\r | |
41 | IN EFI_EVENT Event,\r | |
42 | IN VOID *Context\r | |
43 | )\r | |
44 | {\r | |
45 | EFI_FW_VOL_INSTANCE *FwhInstance;\r | |
46 | UINTN Index;\r | |
47 | \r | |
48 | //\r | |
49 | // Convert the base address of all the instances.\r | |
50 | //\r | |
51 | for (Index = 0; Index < mFvbModuleGlobal.NumFv; Index++) {\r | |
52 | FwhInstance = GetFvbInstance (Index);\r | |
53 | EfiConvertPointer (0, (VOID **) &FwhInstance->FvBase);\r | |
54 | }\r | |
55 | \r | |
56 | EfiConvertPointer (0, (VOID **) &mFvbModuleGlobal.FvInstance);\r | |
57 | }\r | |
58 | \r | |
59 | \r | |
60 | /**\r | |
61 | The function installs EFI_FIRMWARE_VOLUME_BLOCK protocol\r | |
62 | for each FV in the system.\r | |
63 | \r | |
64 | @param[in] FwhInstance The pointer to a FW volume instance structure,\r | |
65 | which contains the information about one FV.\r | |
66 | @param[in] InstanceNum The instance number which can be used as a ID\r | |
67 | to locate this FwhInstance in other functions.\r | |
68 | \r | |
69 | @retval VOID\r | |
70 | \r | |
71 | **/\r | |
72 | VOID\r | |
73 | InstallFvbProtocol (\r | |
74 | IN EFI_FW_VOL_INSTANCE *FwhInstance,\r | |
75 | IN UINTN InstanceNum\r | |
76 | )\r | |
77 | {\r | |
78 | EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;\r | |
79 | EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader;\r | |
80 | EFI_STATUS Status;\r | |
81 | EFI_HANDLE FwbHandle;\r | |
82 | EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *OldFwbInterface;\r | |
83 | \r | |
84 | FvbDevice = (EFI_FW_VOL_BLOCK_DEVICE *) AllocateRuntimeCopyPool (\r | |
85 | sizeof (EFI_FW_VOL_BLOCK_DEVICE),\r | |
86 | &mFvbDeviceTemplate\r | |
87 | );\r | |
88 | ASSERT (FvbDevice != NULL);\r | |
89 | \r | |
90 | FvbDevice->Instance = InstanceNum;\r | |
91 | FwVolHeader = &FwhInstance->VolumeHeader;\r | |
92 | \r | |
93 | //\r | |
94 | // Set up the devicepath.\r | |
95 | //\r | |
96 | DEBUG ((EFI_D_INFO, "FwBlockService.c: Setting up DevicePath for 0x%lx:\n", FwhInstance->FvBase));\r | |
97 | if (FwVolHeader->ExtHeaderOffset == 0) {\r | |
98 | //\r | |
99 | // FV does not contains extension header, then produce MEMMAP_DEVICE_PATH.\r | |
100 | //\r | |
101 | FvbDevice->DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) AllocateRuntimeCopyPool (sizeof (FV_MEMMAP_DEVICE_PATH), &mFvMemmapDevicePathTemplate);\r | |
102 | ((FV_MEMMAP_DEVICE_PATH *) FvbDevice->DevicePath)->MemMapDevPath.StartingAddress = FwhInstance->FvBase;\r | |
103 | ((FV_MEMMAP_DEVICE_PATH *) FvbDevice->DevicePath)->MemMapDevPath.EndingAddress = FwhInstance->FvBase + FwVolHeader->FvLength - 1;\r | |
104 | } else {\r | |
105 | FvbDevice->DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) AllocateRuntimeCopyPool (sizeof (FV_PIWG_DEVICE_PATH), &mFvPIWGDevicePathTemplate);\r | |
106 | CopyGuid (\r | |
107 | &((FV_PIWG_DEVICE_PATH *)FvbDevice->DevicePath)->FvDevPath.FvName,\r | |
108 | (GUID *)(UINTN)(FwhInstance->FvBase + FwVolHeader->ExtHeaderOffset)\r | |
109 | );\r | |
110 | }\r | |
111 | \r | |
112 | //\r | |
113 | // Find a handle with a matching device path that has supports FW Block protocol.\r | |
114 | //\r | |
115 | Status = gBS->LocateDevicePath (\r | |
116 | &gEfiFirmwareVolumeBlockProtocolGuid,\r | |
117 | &FvbDevice->DevicePath,\r | |
118 | &FwbHandle\r | |
119 | );\r | |
120 | if (EFI_ERROR (Status) ) {\r | |
121 | //\r | |
122 | // LocateDevicePath fails so install a new interface and device path.\r | |
123 | //\r | |
124 | DEBUG ((EFI_D_INFO, "FwBlockService.c: LocateDevicePath failed, install new interface 0x%lx:\n", FwhInstance->FvBase));\r | |
125 | FwbHandle = NULL;\r | |
126 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
127 | &FwbHandle,\r | |
128 | &gEfiFirmwareVolumeBlockProtocolGuid,\r | |
129 | &FvbDevice->FwVolBlockInstance,\r | |
130 | &gEfiDevicePathProtocolGuid,\r | |
131 | FvbDevice->DevicePath,\r | |
132 | NULL\r | |
133 | );\r | |
134 | ASSERT_EFI_ERROR (Status);\r | |
135 | DEBUG ((EFI_D_INFO, "FwBlockService.c: IMPI FirmwareVolBlockProt, DevPath 0x%lx: %r\n", FwhInstance->FvBase, Status));\r | |
136 | \r | |
137 | } else if (IsDevicePathEnd (FvbDevice->DevicePath)) {\r | |
138 | //\r | |
139 | // Device allready exists, so reinstall the FVB protocol.\r | |
140 | //\r | |
141 | DEBUG ((EFI_D_ERROR, "FwBlockService.c: LocateDevicePath succeeded, reinstall interface 0x%lx:\n", FwhInstance->FvBase));\r | |
142 | Status = gBS->HandleProtocol (\r | |
143 | FwbHandle,\r | |
144 | &gEfiFirmwareVolumeBlockProtocolGuid,\r | |
145 | (VOID **) &OldFwbInterface\r | |
146 | );\r | |
147 | ASSERT_EFI_ERROR (Status);\r | |
148 | \r | |
149 | Status = gBS->ReinstallProtocolInterface (\r | |
150 | FwbHandle,\r | |
151 | &gEfiFirmwareVolumeBlockProtocolGuid,\r | |
152 | OldFwbInterface,\r | |
153 | &FvbDevice->FwVolBlockInstance\r | |
154 | );\r | |
155 | ASSERT_EFI_ERROR (Status);\r | |
156 | \r | |
157 | } else {\r | |
158 | //\r | |
159 | // There was a FVB protocol on an End Device Path node.\r | |
160 | //\r | |
161 | ASSERT (FALSE);\r | |
162 | }\r | |
163 | \r | |
164 | }\r | |
165 | \r | |
166 | \r | |
167 | /**\r | |
168 | The driver entry point for Firmware Volume Block Driver.\r | |
169 | \r | |
170 | The function does the necessary initialization work for\r | |
171 | Firmware Volume Block Driver.\r | |
172 | \r | |
173 | @param[in] ImageHandle The firmware allocated handle for the UEFI image.\r | |
174 | @param[in] SystemTable A pointer to the EFI system table.\r | |
175 | \r | |
176 | @retval EFI_SUCCESS This funtion always return EFI_SUCCESS.\r | |
177 | It will ASSERT on errors.\r | |
178 | \r | |
179 | **/\r | |
180 | EFI_STATUS\r | |
181 | EFIAPI\r | |
182 | DxeFvbInitialize (\r | |
183 | IN EFI_HANDLE ImageHandle,\r | |
184 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
185 | )\r | |
186 | {\r | |
187 | EFI_STATUS Status;\r | |
188 | EFI_EVENT Event;\r | |
189 | \r | |
190 | Status = gBS->CreateEventEx (\r | |
191 | EVT_NOTIFY_SIGNAL,\r | |
192 | TPL_NOTIFY,\r | |
193 | FvbVirtualddressChangeEvent,\r | |
194 | NULL,\r | |
195 | &gEfiEventVirtualAddressChangeGuid,\r | |
196 | &Event\r | |
197 | );\r | |
198 | ASSERT_EFI_ERROR (Status);\r | |
199 | \r | |
200 | FvbInitialize ();\r | |
201 | \r | |
202 | return EFI_SUCCESS;\r | |
203 | }\r | |
204 | \r |