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25126a05 | 1 | /** @file\r |
2 | Report Status Code Router PEIM which produces Report Stataus Code Handler PPI and Status Code PPI.\r | |
3 | \r | |
4 | Copyright (c) 2009, Intel Corporation\r | |
5 | All rights reserved. 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 "ReportStatusCodeRouterPei.h"\r | |
16 | \r | |
17 | EFI_PEI_RSC_HANDLER_PPI mRscHandlerPpi = {\r | |
18 | Register,\r | |
19 | Unregister\r | |
20 | };\r | |
21 | \r | |
22 | EFI_PEI_PROGRESS_CODE_PPI mStatusCodePpi = {\r | |
23 | ReportDispatcher\r | |
24 | };\r | |
25 | \r | |
26 | EFI_PEI_PPI_DESCRIPTOR mStatusCodePpiList[] = {\r | |
27 | {\r | |
28 | EFI_PEI_PPI_DESCRIPTOR_PPI,\r | |
29 | &gEfiPeiRscHandlerPpiGuid,\r | |
30 | &mRscHandlerPpi\r | |
31 | },\r | |
32 | {\r | |
33 | EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,\r | |
34 | &gEfiPeiStatusCodePpiGuid,\r | |
35 | &mStatusCodePpi\r | |
36 | }\r | |
37 | };\r | |
38 | \r | |
39 | /**\r | |
40 | Worker function to create one memory status code GUID'ed HOB,\r | |
41 | using PacketIndex to identify the packet.\r | |
42 | \r | |
43 | @param PacketIndex Index of records packet.\r | |
44 | \r | |
45 | @return Pointer to the memory status code packet.\r | |
46 | \r | |
47 | **/\r | |
48 | UINTN *\r | |
49 | CreateRscHandlerCallbackPacket (\r | |
50 | VOID\r | |
51 | )\r | |
52 | {\r | |
53 | UINTN *NumberOfEntries;\r | |
54 | \r | |
55 | //\r | |
56 | // Build GUID'ed HOB with PCD defined size.\r | |
57 | //\r | |
58 | NumberOfEntries = BuildGuidHob (\r | |
59 | &gStatusCodeCallbackGuid,\r | |
60 | sizeof (EFI_PEI_RSC_HANDLER_CALLBACK) * 64 + sizeof (UINTN)\r | |
61 | );\r | |
62 | ASSERT (NumberOfEntries != NULL);\r | |
63 | \r | |
64 | *NumberOfEntries = 0;\r | |
65 | \r | |
66 | return NumberOfEntries;\r | |
67 | }\r | |
68 | \r | |
69 | /**\r | |
70 | Register the callback function for ReportStatusCode() notification.\r | |
71 | \r | |
72 | When this function is called the function pointer is added to an internal list and any future calls to\r | |
73 | ReportStatusCode() will be forwarded to the Callback function.\r | |
74 | \r | |
75 | @param[in] Callback A pointer to a function of type EFI_PEI_RSC_HANDLER_CALLBACK that is called\r | |
76 | when a call to ReportStatusCode() occurs.\r | |
77 | \r | |
78 | @retval EFI_SUCCESS Function was successfully registered.\r | |
79 | @retval EFI_INVALID_PARAMETER The callback function was NULL.\r | |
80 | @retval EFI_OUT_OF_RESOURCES The internal buffer ran out of space. No more functions can be\r | |
81 | registered.\r | |
82 | @retval EFI_ALREADY_STARTED The function was already registered. It can't be registered again.\r | |
83 | \r | |
84 | **/\r | |
85 | EFI_STATUS\r | |
86 | EFIAPI\r | |
87 | Register (\r | |
88 | IN EFI_PEI_RSC_HANDLER_CALLBACK Callback\r | |
89 | )\r | |
90 | {\r | |
91 | EFI_PEI_HOB_POINTERS Hob;\r | |
92 | EFI_PEI_RSC_HANDLER_CALLBACK *CallbackEntry;\r | |
93 | UINTN *NumberOfEntries;\r | |
94 | UINTN Index;\r | |
95 | UINTN *FreePacket;\r | |
96 | \r | |
97 | if (Callback == NULL) {\r | |
98 | return EFI_INVALID_PARAMETER;\r | |
99 | }\r | |
100 | \r | |
101 | Hob.Raw = GetFirstGuidHob (&gStatusCodeCallbackGuid);\r | |
102 | FreePacket = NULL;\r | |
103 | while (Hob.Raw != NULL) {\r | |
104 | NumberOfEntries = GET_GUID_HOB_DATA (Hob);\r | |
105 | CallbackEntry = (EFI_PEI_RSC_HANDLER_CALLBACK *) (NumberOfEntries + 1);\r | |
106 | if (*NumberOfEntries < 64) {\r | |
107 | FreePacket = NumberOfEntries;\r | |
108 | }\r | |
109 | for (Index = 0; Index < *NumberOfEntries; Index++) {\r | |
110 | if (CallbackEntry[Index] == Callback) {\r | |
111 | //\r | |
112 | // If the function was already registered. It can't be registered again.\r | |
113 | //\r | |
114 | return EFI_ALREADY_STARTED;\r | |
115 | }\r | |
116 | }\r | |
117 | Hob.Raw = GET_NEXT_HOB (Hob);\r | |
118 | Hob.Raw = GetNextGuidHob (&gStatusCodeCallbackGuid, Hob.Raw);\r | |
119 | }\r | |
120 | \r | |
121 | if (FreePacket == NULL) {\r | |
122 | FreePacket = CreateRscHandlerCallbackPacket();\r | |
123 | }\r | |
124 | \r | |
125 | CallbackEntry = (EFI_PEI_RSC_HANDLER_CALLBACK *) (FreePacket + 1);\r | |
126 | CallbackEntry[*FreePacket] = Callback;\r | |
127 | *FreePacket += 1;\r | |
128 | \r | |
129 | return EFI_SUCCESS;\r | |
130 | }\r | |
131 | \r | |
132 | /**\r | |
133 | Remove a previously registered callback function from the notification list.\r | |
134 | \r | |
135 | ReportStatusCode() messages will no longer be forwarded to the Callback function.\r | |
136 | \r | |
137 | @param[in] Callback A pointer to a function of type EFI_PEI_RSC_HANDLER_CALLBACK that is to be\r | |
138 | unregistered.\r | |
139 | \r | |
140 | @retval EFI_SUCCESS The function was successfully unregistered.\r | |
141 | @retval EFI_INVALID_PARAMETER The callback function was NULL.\r | |
142 | @retval EFI_NOT_FOUND The callback function was not found to be unregistered.\r | |
143 | \r | |
144 | **/\r | |
145 | EFI_STATUS\r | |
146 | EFIAPI\r | |
147 | Unregister (\r | |
148 | IN EFI_PEI_RSC_HANDLER_CALLBACK Callback\r | |
149 | )\r | |
150 | {\r | |
151 | EFI_PEI_HOB_POINTERS Hob;\r | |
152 | EFI_PEI_RSC_HANDLER_CALLBACK *CallbackEntry;\r | |
153 | UINTN *NumberOfEntries;\r | |
154 | UINTN Index;\r | |
155 | \r | |
156 | if (Callback == NULL) {\r | |
157 | return EFI_INVALID_PARAMETER;\r | |
158 | }\r | |
159 | \r | |
160 | Hob.Raw = GetFirstGuidHob (&gStatusCodeCallbackGuid);\r | |
161 | while (Hob.Raw != NULL) {\r | |
162 | NumberOfEntries = GET_GUID_HOB_DATA (Hob);\r | |
163 | CallbackEntry = (EFI_PEI_RSC_HANDLER_CALLBACK *) (NumberOfEntries + 1);\r | |
164 | for (Index = 0; Index < *NumberOfEntries; Index++) {\r | |
165 | if (CallbackEntry[Index] == Callback) {\r | |
166 | CallbackEntry[Index] = CallbackEntry[*NumberOfEntries - 1];\r | |
167 | *NumberOfEntries -= 1;\r | |
168 | return EFI_SUCCESS;\r | |
169 | }\r | |
170 | }\r | |
171 | Hob.Raw = GET_NEXT_HOB (Hob);\r | |
172 | Hob.Raw = GetNextGuidHob (&gStatusCodeCallbackGuid, Hob.Raw);\r | |
173 | }\r | |
174 | \r | |
175 | return EFI_NOT_FOUND;\r | |
176 | }\r | |
177 | \r | |
178 | /**\r | |
179 | Publishes an interface that allows PEIMs to report status codes.\r | |
180 | \r | |
181 | This function implements EFI_PEI_PROGRESS_CODE_PPI.ReportStatusCode().\r | |
182 | It publishes an interface that allows PEIMs to report status codes.\r | |
183 | \r | |
184 | @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r | |
185 | @param CodeType Indicates the type of status code being reported.\r | |
186 | @param Value Describes the current status of a hardware or\r | |
187 | software entity. This includes information about the class and\r | |
188 | subclass that is used to classify the entity as well as an operation.\r | |
189 | For progress codes, the operation is the current activity.\r | |
190 | For error codes, it is the exception.For debug codes,it is not defined at this time.\r | |
191 | @param Instance The enumeration of a hardware or software entity within\r | |
192 | the system. A system may contain multiple entities that match a class/subclass\r | |
193 | pairing. The instance differentiates between them. An instance of 0 indicates\r | |
194 | that instance information is unavailable, not meaningful, or not relevant.\r | |
195 | Valid instance numbers start with 1.\r | |
196 | @param CallerId This optional parameter may be used to identify the caller.\r | |
197 | This parameter allows the status code driver to apply different rules to\r | |
198 | different callers.\r | |
199 | @param Data This optional parameter may be used to pass additional data.\r | |
200 | \r | |
201 | @retval EFI_SUCCESS The function completed successfully.\r | |
202 | \r | |
203 | **/\r | |
204 | EFI_STATUS\r | |
205 | EFIAPI\r | |
206 | ReportDispatcher (\r | |
207 | IN CONST EFI_PEI_SERVICES **PeiServices,\r | |
208 | IN EFI_STATUS_CODE_TYPE CodeType,\r | |
209 | IN EFI_STATUS_CODE_VALUE Value,\r | |
210 | IN UINT32 Instance,\r | |
211 | IN CONST EFI_GUID *CallerId OPTIONAL,\r | |
212 | IN CONST EFI_STATUS_CODE_DATA *Data OPTIONAL\r | |
213 | )\r | |
214 | {\r | |
215 | EFI_PEI_HOB_POINTERS Hob;\r | |
216 | EFI_PEI_RSC_HANDLER_CALLBACK *CallbackEntry;\r | |
217 | UINTN *NumberOfEntries;\r | |
218 | UINTN Index;\r | |
219 | \r | |
220 | Hob.Raw = GetFirstGuidHob (&gStatusCodeCallbackGuid);\r | |
221 | while (Hob.Raw != NULL) {\r | |
222 | NumberOfEntries = GET_GUID_HOB_DATA (Hob);\r | |
223 | CallbackEntry = (EFI_PEI_RSC_HANDLER_CALLBACK *) (NumberOfEntries + 1);\r | |
224 | for (Index = 0; Index < *NumberOfEntries; Index++) {\r | |
225 | CallbackEntry[Index](\r | |
226 | PeiServices,\r | |
227 | CodeType,\r | |
228 | Value,\r | |
229 | Instance,\r | |
230 | CallerId,\r | |
231 | Data\r | |
232 | );\r | |
233 | }\r | |
234 | Hob.Raw = GET_NEXT_HOB (Hob);\r | |
235 | Hob.Raw = GetNextGuidHob (&gStatusCodeCallbackGuid, Hob.Raw);\r | |
236 | }\r | |
237 | \r | |
238 | return EFI_SUCCESS;\r | |
239 | }\r | |
240 | \r | |
241 | /**\r | |
242 | Entry point of Status Code PEIM.\r | |
243 | \r | |
244 | This function is the entry point of this Status Code Router PEIM.\r | |
245 | It produces Report Stataus Code Handler PPI and Status Code PPI.\r | |
246 | \r | |
247 | @param FileHandle Handle of the file being invoked.\r | |
248 | @param PeiServices Describes the list of possible PEI Services.\r | |
249 | \r | |
250 | @retval EFI_SUCESS The entry point of DXE IPL PEIM executes successfully.\r | |
251 | \r | |
252 | **/\r | |
253 | EFI_STATUS\r | |
254 | EFIAPI\r | |
255 | GenericStatusCodePeiEntry (\r | |
256 | IN EFI_PEI_FILE_HANDLE FileHandle,\r | |
257 | IN CONST EFI_PEI_SERVICES **PeiServices\r | |
258 | )\r | |
259 | {\r | |
260 | EFI_STATUS Status;\r | |
261 | \r | |
262 | CreateRscHandlerCallbackPacket ();\r | |
263 | \r | |
264 | Status = PeiServicesInstallPpi (mStatusCodePpiList);\r | |
265 | ASSERT_EFI_ERROR (Status);\r | |
266 | \r | |
267 | return EFI_SUCCESS;\r | |
268 | }\r |