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1 | /** @file\r |
2 | This driver will register two callbacks to call fsp's notifies.\r | |
3 | \r | |
4 | Copyright (c) 2014, Intel Corporation. All rights reserved.<BR>\r | |
5 | This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php.\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | #include <PiDxe.h>\r | |
16 | \r | |
17 | #include <Protocol/PciEnumerationComplete.h>\r | |
18 | \r | |
19 | #include <Library/UefiDriverEntryPoint.h>\r | |
20 | #include <Library/UefiBootServicesTableLib.h>\r | |
21 | #include <Library/DebugLib.h>\r | |
22 | #include <Library/BaseMemoryLib.h>\r | |
23 | #include <Library/UefiLib.h>\r | |
24 | #include <Library/FspApiLib.h>\r | |
25 | \r | |
26 | FSP_INFO_HEADER *mFspHeader = NULL;\r | |
27 | \r | |
28 | /**\r | |
29 | PciEnumerationComplete Protocol notification event handler.\r | |
30 | \r | |
31 | @param[in] Event Event whose notification function is being invoked.\r | |
32 | @param[in] Context Pointer to the notification function's context.\r | |
33 | **/\r | |
34 | VOID\r | |
35 | EFIAPI\r | |
36 | OnPciEnumerationComplete (\r | |
37 | IN EFI_EVENT Event,\r | |
38 | IN VOID *Context\r | |
39 | )\r | |
40 | {\r | |
41 | NOTIFY_PHASE_PARAMS NotifyPhaseParams;\r | |
42 | EFI_STATUS Status;\r | |
43 | FSP_STATUS FspStatus;\r | |
44 | VOID *Interface;\r | |
45 | \r | |
46 | //\r | |
47 | // Try to locate it because gEfiPciEnumerationCompleteProtocolGuid will trigger it once when registration.\r | |
48 | // Just return if it is not found.\r | |
49 | //\r | |
50 | Status = gBS->LocateProtocol (\r | |
51 | &gEfiPciEnumerationCompleteProtocolGuid,\r | |
52 | NULL,\r | |
53 | &Interface\r | |
54 | );\r | |
55 | if (EFI_ERROR (Status)) {\r | |
56 | return ;\r | |
57 | }\r | |
58 | \r | |
59 | NotifyPhaseParams.Phase = EnumInitPhaseAfterPciEnumeration;\r | |
60 | FspStatus = CallFspNotifyPhase (mFspHeader, &NotifyPhaseParams);\r | |
61 | if (FspStatus != FSP_SUCCESS) {\r | |
62 | DEBUG((DEBUG_ERROR, "FSP NotifyPhase AfterPciEnumeration failed, status: 0x%x\n", FspStatus));\r | |
63 | } else {\r | |
64 | DEBUG((DEBUG_INFO, "FSP NotifyPhase AfterPciEnumeration Success.\n"));\r | |
65 | }\r | |
66 | }\r | |
67 | \r | |
68 | /**\r | |
69 | Notification function of EVT_GROUP_READY_TO_BOOT event group.\r | |
70 | \r | |
71 | This is a notification function registered on EVT_GROUP_READY_TO_BOOT event group.\r | |
72 | When the Boot Manager is about to load and execute a boot option, it reclaims variable\r | |
73 | storage if free size is below the threshold.\r | |
74 | \r | |
75 | @param[in] Event Event whose notification function is being invoked.\r | |
76 | @param[in] Context Pointer to the notification function's context.\r | |
77 | \r | |
78 | **/\r | |
79 | VOID\r | |
80 | EFIAPI\r | |
81 | OnReadyToBoot (\r | |
82 | IN EFI_EVENT Event,\r | |
83 | IN VOID *Context\r | |
84 | )\r | |
85 | {\r | |
86 | NOTIFY_PHASE_PARAMS NotifyPhaseParams;\r | |
87 | FSP_STATUS FspStatus;\r | |
88 | \r | |
89 | gBS->CloseEvent (Event);\r | |
90 | \r | |
91 | NotifyPhaseParams.Phase = EnumInitPhaseReadyToBoot;\r | |
92 | FspStatus = CallFspNotifyPhase (mFspHeader, &NotifyPhaseParams);\r | |
93 | if (FspStatus != FSP_SUCCESS) {\r | |
94 | DEBUG((DEBUG_ERROR, "FSP NotifyPhase ReadyToBoot failed, status: 0x%x\n", FspStatus));\r | |
95 | } else {\r | |
96 | DEBUG((DEBUG_INFO, "FSP NotifyPhase ReadyToBoot Success.\n"));\r | |
97 | }\r | |
98 | }\r | |
99 | \r | |
100 | /**\r | |
101 | Main entry for the FSP DXE module.\r | |
102 | \r | |
103 | This routine registers two callbacks to call fsp's notifies.\r | |
104 | \r | |
105 | @param[in] ImageHandle The firmware allocated handle for the EFI image.\r | |
106 | @param[in] SystemTable A pointer to the EFI System Table.\r | |
107 | \r | |
108 | @retval EFI_SUCCESS The entry point is executed successfully.\r | |
109 | @retval other Some error occurs when executing this entry point.\r | |
110 | \r | |
111 | **/\r | |
112 | EFI_STATUS\r | |
113 | EFIAPI\r | |
114 | FspDxeEntryPoint (\r | |
115 | IN EFI_HANDLE ImageHandle,\r | |
116 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
117 | )\r | |
118 | {\r | |
119 | EFI_STATUS Status;\r | |
120 | EFI_EVENT ReadyToBootEvent;\r | |
121 | VOID *Registration;\r | |
122 | EFI_EVENT ProtocolNotifyEvent;\r | |
123 | \r | |
124 | mFspHeader = FspFindFspHeader (PcdGet32 (PcdFlashFvFspBase));\r | |
125 | DEBUG ((DEBUG_INFO, "FspHeader - 0x%x\n", mFspHeader));\r | |
126 | if (mFspHeader == NULL) {\r | |
127 | return EFI_DEVICE_ERROR;\r | |
128 | }\r | |
129 | \r | |
130 | ProtocolNotifyEvent = EfiCreateProtocolNotifyEvent (\r | |
131 | &gEfiPciEnumerationCompleteProtocolGuid,\r | |
132 | TPL_CALLBACK,\r | |
133 | OnPciEnumerationComplete,\r | |
134 | NULL,\r | |
135 | &Registration\r | |
136 | );\r | |
137 | ASSERT (ProtocolNotifyEvent != NULL);\r | |
138 | \r | |
139 | Status = EfiCreateEventReadyToBootEx (\r | |
140 | TPL_CALLBACK,\r | |
141 | OnReadyToBoot,\r | |
142 | NULL,\r | |
143 | &ReadyToBootEvent\r | |
144 | );\r | |
145 | ASSERT_EFI_ERROR (Status);\r | |
146 | \r | |
147 | return EFI_SUCCESS;\r | |
148 | }\r | |
149 | \r |