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1/** @file\r
2 API for SMBIOS table.\r
3\r
4 Copyright (c) 2005 - 2018, 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\r
16#include "UefiShellDebug1CommandsLib.h"\r
17#include <Guid/SmBios.h>\r
18#include "LibSmbiosView.h"\r
19#include "SmbiosView.h"\r
20\r
21STATIC UINT8 mInit = 0;\r
22STATIC UINT8 m64Init = 0;\r
23STATIC SMBIOS_TABLE_ENTRY_POINT *mSmbiosTable = NULL;\r
24STATIC SMBIOS_TABLE_3_0_ENTRY_POINT *mSmbios64BitTable = NULL;\r
25STATIC SMBIOS_STRUCTURE_POINTER m_SmbiosStruct;\r
26STATIC SMBIOS_STRUCTURE_POINTER *mSmbiosStruct = &m_SmbiosStruct;\r
27STATIC SMBIOS_STRUCTURE_POINTER m_Smbios64BitStruct;\r
28STATIC SMBIOS_STRUCTURE_POINTER *mSmbios64BitStruct = &m_Smbios64BitStruct;\r
29\r
30/**\r
31 Init the SMBIOS VIEW API's environment.\r
32\r
33 @retval EFI_SUCCESS Successful to init the SMBIOS VIEW Lib.\r
34**/\r
35EFI_STATUS\r
36LibSmbiosInit (\r
37 VOID\r
38 )\r
39{\r
40 EFI_STATUS Status;\r
41\r
42 //\r
43 // Init only once\r
44 //\r
45 if (mInit == 1) {\r
46 return EFI_SUCCESS;\r
47 }\r
48 //\r
49 // Get SMBIOS table from System Configure table\r
50 //\r
51 Status = GetSystemConfigurationTable (&gEfiSmbiosTableGuid, (VOID**)&mSmbiosTable);\r
52\r
53 if (mSmbiosTable == NULL) {\r
54 return EFI_NOT_FOUND;\r
55 }\r
56\r
57 if (EFI_ERROR (Status)) {\r
58 ShellPrintHiiEx(-1,-1,NULL,STRING_TOKEN (STR_SMBIOSVIEW_LIBSMBIOSVIEW_GET_TABLE_ERROR), gShellDebug1HiiHandle, Status);\r
59 return Status;\r
60 }\r
61 //\r
62 // Init SMBIOS structure table address\r
63 //\r
64 mSmbiosStruct->Raw = (UINT8 *) (UINTN) (mSmbiosTable->TableAddress);\r
65\r
66 mInit = 1;\r
67 return EFI_SUCCESS;\r
68}\r
69\r
70/**\r
71 Init the SMBIOS VIEW API's environment.\r
72\r
73 @retval EFI_SUCCESS Successful to init the SMBIOS VIEW Lib.\r
74**/\r
75EFI_STATUS\r
76LibSmbios64BitInit (\r
77 VOID\r
78 )\r
79{\r
80 EFI_STATUS Status;\r
81\r
82 //\r
83 // Init only once\r
84 //\r
85 if (m64Init == 1) {\r
86 return EFI_SUCCESS;\r
87 }\r
88 //\r
89 // Get SMBIOS table from System Configure table\r
90 //\r
91 Status = GetSystemConfigurationTable (&gEfiSmbios3TableGuid, (VOID**)&mSmbios64BitTable);\r
92\r
93 if (mSmbios64BitTable == NULL) {\r
94 return EFI_NOT_FOUND;\r
95 }\r
96\r
97 if (EFI_ERROR (Status)) {\r
98 ShellPrintHiiEx(-1,-1,NULL,STRING_TOKEN (STR_SMBIOSVIEW_LIBSMBIOSVIEW_GET_TABLE_ERROR), gShellDebug1HiiHandle, Status);\r
99 return Status;\r
100 }\r
101 //\r
102 // Init SMBIOS structure table address\r
103 //\r
104 mSmbios64BitStruct->Raw = (UINT8 *) (UINTN) (mSmbios64BitTable->TableAddress);\r
105\r
106 m64Init = 1;\r
107 return EFI_SUCCESS;\r
108}\r
109\r
110/**\r
111 Cleanup the Smbios information.\r
112**/\r
113VOID\r
114LibSmbiosCleanup (\r
115 VOID\r
116 )\r
117{\r
118 //\r
119 // Release resources\r
120 //\r
121 if (mSmbiosTable != NULL) {\r
122 mSmbiosTable = NULL;\r
123 }\r
124\r
125 mInit = 0;\r
126}\r
127\r
128/**\r
129 Cleanup the Smbios information.\r
130**/\r
131VOID\r
132LibSmbios64BitCleanup (\r
133 VOID\r
134 )\r
135{\r
136 //\r
137 // Release resources\r
138 //\r
139 if (mSmbios64BitTable != NULL) {\r
140 mSmbios64BitTable = NULL;\r
141 }\r
142\r
143 m64Init = 0;\r
144}\r
145\r
146/**\r
147 Get the entry point structure for the table.\r
148\r
149 @param[out] EntryPointStructure The pointer to populate.\r
150**/\r
151VOID\r
152LibSmbiosGetEPS (\r
153 OUT SMBIOS_TABLE_ENTRY_POINT **EntryPointStructure\r
154 )\r
155{\r
156 //\r
157 // return SMBIOS Table address\r
158 //\r
159 *EntryPointStructure = mSmbiosTable;\r
160}\r
161\r
162/**\r
163 Get the entry point structure for the table.\r
164\r
165 @param[out] EntryPointStructure The pointer to populate.\r
166**/\r
167VOID\r
168LibSmbios64BitGetEPS (\r
169 OUT SMBIOS_TABLE_3_0_ENTRY_POINT **EntryPointStructure\r
170 )\r
171{\r
172 //\r
173 // return SMBIOS Table address\r
174 //\r
175 *EntryPointStructure = mSmbios64BitTable;\r
176}\r
177\r
178/**\r
179 Return SMBIOS string for the given string number.\r
180\r
181 @param[in] Smbios Pointer to SMBIOS structure.\r
182 @param[in] StringNumber String number to return. -1 is used to skip all strings and\r
183 point to the next SMBIOS structure.\r
184\r
185 @return Pointer to string, or pointer to next SMBIOS strcuture if StringNumber == -1\r
186**/\r
187CHAR8*\r
188LibGetSmbiosString (\r
189 IN SMBIOS_STRUCTURE_POINTER *Smbios,\r
190 IN UINT16 StringNumber\r
191 )\r
192{\r
193 UINT16 Index;\r
194 CHAR8 *String;\r
195\r
196 ASSERT (Smbios != NULL);\r
197\r
198 //\r
199 // Skip over formatted section\r
200 //\r
201 String = (CHAR8 *) (Smbios->Raw + Smbios->Hdr->Length);\r
202\r
203 //\r
204 // Look through unformated section\r
205 //\r
206 for (Index = 1; Index <= StringNumber; Index++) {\r
207 if (StringNumber == Index) {\r
208 return String;\r
209 }\r
210 //\r
211 // Skip string\r
212 //\r
213 for (; *String != 0; String++);\r
214 String++;\r
215\r
216 if (*String == 0) {\r
217 //\r
218 // If double NULL then we are done.\r
219 // Return pointer to next structure in Smbios.\r
220 // if you pass in a -1 you will always get here\r
221 //\r
222 Smbios->Raw = (UINT8 *)++String;\r
223 return NULL;\r
224 }\r
225 }\r
226\r
227 return NULL;\r
228}\r
229\r
230/**\r
231 Get SMBIOS structure for the given Handle,\r
232 Handle is changed to the next handle or 0xFFFF when the end is\r
233 reached or the handle is not found.\r
234\r
235 @param[in, out] Handle 0xFFFF: get the first structure\r
236 Others: get a structure according to this value.\r
237 @param[out] Buffer The pointer to the pointer to the structure.\r
238 @param[out] Length Length of the structure.\r
239\r
240 @retval DMI_SUCCESS Handle is updated with next structure handle or\r
241 0xFFFF(end-of-list).\r
242\r
243 @retval DMI_INVALID_HANDLE Handle is updated with first structure handle or\r
244 0xFFFF(end-of-list).\r
245**/\r
246EFI_STATUS\r
247LibGetSmbiosStructure (\r
248 IN OUT UINT16 *Handle,\r
249 OUT UINT8 **Buffer,\r
250 OUT UINT16 *Length\r
251 )\r
252{\r
253 SMBIOS_STRUCTURE_POINTER Smbios;\r
254 SMBIOS_STRUCTURE_POINTER SmbiosEnd;\r
255 UINT8 *Raw;\r
256\r
257 if (*Handle == INVALID_HANDLE) {\r
258 *Handle = mSmbiosStruct->Hdr->Handle;\r
259 return DMI_INVALID_HANDLE;\r
260 }\r
261\r
262 if ((Buffer == NULL) || (Length == NULL)) {\r
263 ShellPrintHiiEx(-1,-1,NULL,STRING_TOKEN (STR_SMBIOSVIEW_LIBSMBIOSVIEW_NO_BUFF_LEN_SPEC), gShellDebug1HiiHandle);\r
264 return DMI_INVALID_HANDLE;\r
265 }\r
266\r
267 *Length = 0;\r
268 Smbios.Hdr = mSmbiosStruct->Hdr;\r
269 SmbiosEnd.Raw = Smbios.Raw + mSmbiosTable->TableLength;\r
270 while (Smbios.Raw < SmbiosEnd.Raw) {\r
271 if (Smbios.Hdr->Handle == *Handle) {\r
272 Raw = Smbios.Raw;\r
273 //\r
274 // Walk to next structure\r
275 //\r
276 LibGetSmbiosString (&Smbios, (UINT16) (-1));\r
277 //\r
278 // Length = Next structure head - this structure head\r
279 //\r
280 *Length = (UINT16) (Smbios.Raw - Raw);\r
281 *Buffer = Raw;\r
282 //\r
283 // update with the next structure handle.\r
284 //\r
285 if (Smbios.Raw < SmbiosEnd.Raw) {\r
286 *Handle = Smbios.Hdr->Handle;\r
287 } else {\r
288 *Handle = INVALID_HANDLE;\r
289 }\r
290 return DMI_SUCCESS;\r
291 }\r
292 //\r
293 // Walk to next structure\r
294 //\r
295 LibGetSmbiosString (&Smbios, (UINT16) (-1));\r
296 }\r
297\r
298 *Handle = INVALID_HANDLE;\r
299 return DMI_INVALID_HANDLE;\r
300}\r
301\r
302/**\r
303 Get SMBIOS structure for the given Handle,\r
304 Handle is changed to the next handle or 0xFFFF when the end is\r
305 reached or the handle is not found.\r
306\r
307 @param[in, out] Handle 0xFFFF: get the first structure\r
308 Others: get a structure according to this value.\r
309 @param[out] Buffer The pointer to the pointer to the structure.\r
310 @param[out] Length Length of the structure.\r
311\r
312 @retval DMI_SUCCESS Handle is updated with next structure handle or\r
313 0xFFFF(end-of-list).\r
314\r
315 @retval DMI_INVALID_HANDLE Handle is updated with first structure handle or\r
316 0xFFFF(end-of-list).\r
317**/\r
318EFI_STATUS\r
319LibGetSmbios64BitStructure (\r
320 IN OUT UINT16 *Handle,\r
321 OUT UINT8 **Buffer,\r
322 OUT UINT16 *Length\r
323 )\r
324{\r
325 SMBIOS_STRUCTURE_POINTER Smbios;\r
326 SMBIOS_STRUCTURE_POINTER SmbiosEnd;\r
327 UINT8 *Raw;\r
328\r
329 if (*Handle == INVALID_HANDLE) {\r
330 *Handle = mSmbios64BitStruct->Hdr->Handle;\r
331 return DMI_INVALID_HANDLE;\r
332 }\r
333\r
334 if ((Buffer == NULL) || (Length == NULL)) {\r
335 ShellPrintHiiEx(-1,-1,NULL,STRING_TOKEN (STR_SMBIOSVIEW_LIBSMBIOSVIEW_NO_BUFF_LEN_SPEC), gShellDebug1HiiHandle);\r
336 return DMI_INVALID_HANDLE;\r
337 }\r
338\r
339 *Length = 0;\r
340 Smbios.Hdr = mSmbios64BitStruct->Hdr;\r
341\r
342 SmbiosEnd.Raw = Smbios.Raw + mSmbios64BitTableLength;\r
343 while (Smbios.Raw < SmbiosEnd.Raw) {\r
344 if (Smbios.Hdr->Handle == *Handle) {\r
345 Raw = Smbios.Raw;\r
346 //\r
347 // Walk to next structure\r
348 //\r
349 LibGetSmbiosString (&Smbios, (UINT16) (-1));\r
350 //\r
351 // Length = Next structure head - this structure head\r
352 //\r
353 *Length = (UINT16) (Smbios.Raw - Raw);\r
354 *Buffer = Raw;\r
355 //\r
356 // update with the next structure handle.\r
357 //\r
358 if (Smbios.Raw < SmbiosEnd.Raw) {\r
359 *Handle = Smbios.Hdr->Handle;\r
360 } else {\r
361 *Handle = INVALID_HANDLE;\r
362 }\r
363 return DMI_SUCCESS;\r
364 }\r
365 //\r
366 // Walk to next structure\r
367 //\r
368 LibGetSmbiosString (&Smbios, (UINT16) (-1));\r
369 }\r
370\r
371 *Handle = INVALID_HANDLE;\r
372 return DMI_INVALID_HANDLE;\r
373}\r
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