]>
Commit | Line | Data |
---|---|---|
1 | /** @file\r | |
2 | This driver effectuates OVMF's platform configuration settings and exposes\r | |
3 | them via HII.\r | |
4 | \r | |
5 | Copyright (C) 2014, Red Hat, Inc.\r | |
6 | Copyright (c) 2009 - 2014, Intel Corporation. All rights reserved.<BR>\r | |
7 | \r | |
8 | This program and the accompanying materials are licensed and made available\r | |
9 | under the terms and conditions of the BSD License which accompanies this\r | |
10 | distribution. The full text of the license may be found at\r | |
11 | http://opensource.org/licenses/bsd-license.php\r | |
12 | \r | |
13 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT\r | |
14 | WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
15 | **/\r | |
16 | \r | |
17 | #include <Library/BaseLib.h>\r | |
18 | #include <Library/DebugLib.h>\r | |
19 | #include <Library/DevicePathLib.h>\r | |
20 | #include <Library/HiiLib.h>\r | |
21 | #include <Library/UefiBootServicesTableLib.h>\r | |
22 | #include <Library/UefiHiiServicesLib.h>\r | |
23 | #include <Protocol/DevicePath.h>\r | |
24 | #include <Protocol/HiiConfigAccess.h>\r | |
25 | #include <Guid/MdeModuleHii.h>\r | |
26 | #include <Guid/OvmfPlatformConfig.h>\r | |
27 | \r | |
28 | #include "Platform.h"\r | |
29 | #include "PlatformConfig.h"\r | |
30 | \r | |
31 | //\r | |
32 | // The HiiAddPackages() library function requires that any controller (or\r | |
33 | // image) handle, to be associated with the HII packages under installation, be\r | |
34 | // "decorated" with a device path. The tradition seems to be a vendor device\r | |
35 | // path.\r | |
36 | //\r | |
37 | // We'd like to associate our HII packages with the driver's image handle. The\r | |
38 | // first idea is to use the driver image's device path. Unfortunately, loaded\r | |
39 | // images only come with an EFI_LOADED_IMAGE_DEVICE_PATH_PROTOCOL (not the\r | |
40 | // usual EFI_DEVICE_PATH_PROTOCOL), ie. a different GUID. In addition, even the\r | |
41 | // EFI_LOADED_IMAGE_DEVICE_PATH_PROTOCOL interface may be NULL, if the image\r | |
42 | // has been loaded from an "unnamed" memory source buffer.\r | |
43 | //\r | |
44 | // Hence let's just stick with the tradition -- use a dedicated vendor device\r | |
45 | // path, with the driver's FILE_GUID.\r | |
46 | //\r | |
47 | #pragma pack(1)\r | |
48 | typedef struct {\r | |
49 | VENDOR_DEVICE_PATH VendorDevicePath;\r | |
50 | EFI_DEVICE_PATH_PROTOCOL End;\r | |
51 | } PKG_DEVICE_PATH;\r | |
52 | #pragma pack()\r | |
53 | \r | |
54 | STATIC PKG_DEVICE_PATH mPkgDevicePath = {\r | |
55 | {\r | |
56 | {\r | |
57 | HARDWARE_DEVICE_PATH,\r | |
58 | HW_VENDOR_DP,\r | |
59 | {\r | |
60 | (UINT8) (sizeof (VENDOR_DEVICE_PATH) ),\r | |
61 | (UINT8) (sizeof (VENDOR_DEVICE_PATH) >> 8)\r | |
62 | }\r | |
63 | },\r | |
64 | EFI_CALLER_ID_GUID\r | |
65 | },\r | |
66 | {\r | |
67 | END_DEVICE_PATH_TYPE,\r | |
68 | END_ENTIRE_DEVICE_PATH_SUBTYPE,\r | |
69 | {\r | |
70 | (UINT8) (END_DEVICE_PATH_LENGTH ),\r | |
71 | (UINT8) (END_DEVICE_PATH_LENGTH >> 8)\r | |
72 | }\r | |
73 | }\r | |
74 | };\r | |
75 | \r | |
76 | //\r | |
77 | // The configuration interface between the HII engine (form display etc) and\r | |
78 | // this driver.\r | |
79 | //\r | |
80 | STATIC EFI_HII_CONFIG_ACCESS_PROTOCOL mConfigAccess;\r | |
81 | \r | |
82 | //\r | |
83 | // The handle representing our list of packages after installation.\r | |
84 | //\r | |
85 | STATIC EFI_HII_HANDLE mInstalledPackages;\r | |
86 | \r | |
87 | //\r | |
88 | // The arrays below constitute our HII package list. They are auto-generated by\r | |
89 | // the VFR compiler and linked into the driver image during the build.\r | |
90 | //\r | |
91 | // - The strings package receives its C identifier from the driver's BASE_NAME,\r | |
92 | // plus "Strings".\r | |
93 | //\r | |
94 | // - The forms package receives its C identifier from the VFR file's basename,\r | |
95 | // plus "Bin".\r | |
96 | //\r | |
97 | //\r | |
98 | extern UINT8 PlatformDxeStrings[];\r | |
99 | extern UINT8 PlatformFormsBin[];\r | |
100 | \r | |
101 | \r | |
102 | /**\r | |
103 | This function is called by the HII machinery when it fetches the form state.\r | |
104 | \r | |
105 | See the precise documentation in the UEFI spec.\r | |
106 | \r | |
107 | @param[in] This The Config Access Protocol instance.\r | |
108 | \r | |
109 | @param[in] Request A <ConfigRequest> format UCS-2 string describing the\r | |
110 | query.\r | |
111 | \r | |
112 | @param[out] Progress A pointer into Request on output, identifying the query\r | |
113 | element where processing failed.\r | |
114 | \r | |
115 | @param[out] Results A <MultiConfigAltResp> format UCS-2 string that has\r | |
116 | all values filled in for the names in the Request\r | |
117 | string.\r | |
118 | \r | |
119 | @return Status codes from gHiiConfigRouting->BlockToConfig().\r | |
120 | \r | |
121 | **/\r | |
122 | STATIC\r | |
123 | EFI_STATUS\r | |
124 | EFIAPI\r | |
125 | ExtractConfig (\r | |
126 | IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,\r | |
127 | IN CONST EFI_STRING Request,\r | |
128 | OUT EFI_STRING *Progress,\r | |
129 | OUT EFI_STRING *Results\r | |
130 | )\r | |
131 | {\r | |
132 | MAIN_FORM_STATE MainFormState;\r | |
133 | EFI_STATUS Status;\r | |
134 | \r | |
135 | DEBUG ((EFI_D_VERBOSE, "%a: Request=\"%s\"\n", __FUNCTION__, Request));\r | |
136 | \r | |
137 | StrnCpy ((CHAR16 *) MainFormState.CurrentPreferredResolution,\r | |
138 | L"Unset", MAXSIZE_RES_CUR);\r | |
139 | MainFormState.NextPreferredResolution = 0;\r | |
140 | Status = gHiiConfigRouting->BlockToConfig (gHiiConfigRouting, Request,\r | |
141 | (VOID *) &MainFormState, sizeof MainFormState,\r | |
142 | Results, Progress);\r | |
143 | if (EFI_ERROR (Status)) {\r | |
144 | DEBUG ((EFI_D_ERROR, "%a: BlockToConfig(): %r, Progress=\"%s\"\n",\r | |
145 | __FUNCTION__, Status, (Status == EFI_DEVICE_ERROR) ? NULL : *Progress));\r | |
146 | } else {\r | |
147 | DEBUG ((EFI_D_VERBOSE, "%a: Results=\"%s\"\n", __FUNCTION__, *Results));\r | |
148 | }\r | |
149 | return Status;\r | |
150 | }\r | |
151 | \r | |
152 | \r | |
153 | STATIC\r | |
154 | EFI_STATUS\r | |
155 | EFIAPI\r | |
156 | RouteConfig (\r | |
157 | IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,\r | |
158 | IN CONST EFI_STRING Configuration,\r | |
159 | OUT EFI_STRING *Progress\r | |
160 | )\r | |
161 | {\r | |
162 | return EFI_SUCCESS;\r | |
163 | }\r | |
164 | \r | |
165 | \r | |
166 | STATIC\r | |
167 | EFI_STATUS\r | |
168 | EFIAPI\r | |
169 | Callback (\r | |
170 | IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,\r | |
171 | IN EFI_BROWSER_ACTION Action,\r | |
172 | IN EFI_QUESTION_ID QuestionId,\r | |
173 | IN UINT8 Type,\r | |
174 | IN OUT EFI_IFR_TYPE_VALUE *Value,\r | |
175 | OUT EFI_BROWSER_ACTION_REQUEST *ActionRequest\r | |
176 | )\r | |
177 | {\r | |
178 | return EFI_SUCCESS;\r | |
179 | }\r | |
180 | \r | |
181 | \r | |
182 | /**\r | |
183 | Create a set of "one-of-many" (ie. "drop down list") option IFR opcodes,\r | |
184 | based on available GOP resolutions, to be placed under a "one-of-many" (ie.\r | |
185 | "drop down list") opcode.\r | |
186 | \r | |
187 | @param[in] PackageList The package list with the formset and form for\r | |
188 | which the drop down options are produced. Option\r | |
189 | names are added as new strings to PackageList.\r | |
190 | \r | |
191 | @param[out] OpCodeBuffer On output, a dynamically allocated opcode buffer\r | |
192 | with drop down list options corresponding to GOP\r | |
193 | resolutions. The caller is responsible for freeing\r | |
194 | OpCodeBuffer with HiiFreeOpCodeHandle() after use.\r | |
195 | \r | |
196 | @retval EFI_SUCESS Opcodes have been successfully produced.\r | |
197 | \r | |
198 | @return Status codes from underlying functions. PackageList may\r | |
199 | have been extended with new strings. OpCodeBuffer is\r | |
200 | unchanged.\r | |
201 | **/\r | |
202 | STATIC\r | |
203 | EFI_STATUS\r | |
204 | EFIAPI\r | |
205 | CreateResolutionOptions (\r | |
206 | IN EFI_HII_HANDLE *PackageList,\r | |
207 | OUT VOID **OpCodeBuffer\r | |
208 | )\r | |
209 | {\r | |
210 | EFI_STATUS Status;\r | |
211 | VOID *OutputBuffer;\r | |
212 | EFI_STRING_ID NewString;\r | |
213 | VOID *OpCode;\r | |
214 | \r | |
215 | OutputBuffer = HiiAllocateOpCodeHandle ();\r | |
216 | if (OutputBuffer == NULL) {\r | |
217 | return EFI_OUT_OF_RESOURCES;\r | |
218 | }\r | |
219 | \r | |
220 | NewString = HiiSetString (PackageList, 0 /* new string */, L"800x600",\r | |
221 | NULL /* for all languages */);\r | |
222 | if (NewString == 0) {\r | |
223 | Status = EFI_OUT_OF_RESOURCES;\r | |
224 | goto FreeOutputBuffer;\r | |
225 | }\r | |
226 | OpCode = HiiCreateOneOfOptionOpCode (OutputBuffer, NewString,\r | |
227 | 0 /* Flags */, EFI_IFR_NUMERIC_SIZE_4, 0 /* Value */);\r | |
228 | if (OpCode == NULL) {\r | |
229 | Status = EFI_OUT_OF_RESOURCES;\r | |
230 | goto FreeOutputBuffer;\r | |
231 | }\r | |
232 | \r | |
233 | *OpCodeBuffer = OutputBuffer;\r | |
234 | return EFI_SUCCESS;\r | |
235 | \r | |
236 | FreeOutputBuffer:\r | |
237 | HiiFreeOpCodeHandle (OutputBuffer);\r | |
238 | \r | |
239 | return Status;\r | |
240 | }\r | |
241 | \r | |
242 | \r | |
243 | /**\r | |
244 | Populate the form identified by the (PackageList, FormSetGuid, FormId)\r | |
245 | triplet.\r | |
246 | \r | |
247 | @retval EFI_SUCESS Form successfully updated.\r | |
248 | @return Status codes from underlying functions.\r | |
249 | \r | |
250 | **/\r | |
251 | STATIC\r | |
252 | EFI_STATUS\r | |
253 | EFIAPI\r | |
254 | PopulateForm (\r | |
255 | IN EFI_HII_HANDLE *PackageList,\r | |
256 | IN EFI_GUID *FormSetGuid,\r | |
257 | IN EFI_FORM_ID FormId\r | |
258 | )\r | |
259 | {\r | |
260 | EFI_STATUS Status;\r | |
261 | VOID *OpCodeBuffer;\r | |
262 | VOID *OpCode;\r | |
263 | EFI_IFR_GUID_LABEL *Anchor;\r | |
264 | VOID *OpCodeBuffer2;\r | |
265 | \r | |
266 | OpCodeBuffer2 = NULL;\r | |
267 | \r | |
268 | //\r | |
269 | // 1. Allocate an empty opcode buffer.\r | |
270 | //\r | |
271 | OpCodeBuffer = HiiAllocateOpCodeHandle ();\r | |
272 | if (OpCodeBuffer == NULL) {\r | |
273 | return EFI_OUT_OF_RESOURCES;\r | |
274 | }\r | |
275 | \r | |
276 | //\r | |
277 | // 2. Create a label opcode (which is a Tiano extension) inside the buffer.\r | |
278 | // The label's number must match the "anchor" label in the form.\r | |
279 | //\r | |
280 | OpCode = HiiCreateGuidOpCode (OpCodeBuffer, &gEfiIfrTianoGuid,\r | |
281 | NULL /* optional copy origin */, sizeof *Anchor);\r | |
282 | if (OpCode == NULL) {\r | |
283 | Status = EFI_OUT_OF_RESOURCES;\r | |
284 | goto FreeOpCodeBuffer;\r | |
285 | }\r | |
286 | Anchor = OpCode;\r | |
287 | Anchor->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;\r | |
288 | Anchor->Number = LABEL_RES_NEXT;\r | |
289 | \r | |
290 | //\r | |
291 | // 3. Create the opcodes inside the buffer that are to be inserted into the\r | |
292 | // form.\r | |
293 | //\r | |
294 | // 3.1. Get a list of resolutions.\r | |
295 | //\r | |
296 | Status = CreateResolutionOptions (PackageList, &OpCodeBuffer2);\r | |
297 | if (EFI_ERROR (Status)) {\r | |
298 | goto FreeOpCodeBuffer;\r | |
299 | }\r | |
300 | \r | |
301 | //\r | |
302 | // 3.2. Create a one-of-many question with the above options.\r | |
303 | //\r | |
304 | OpCode = HiiCreateOneOfOpCode (\r | |
305 | OpCodeBuffer, // create opcode inside this\r | |
306 | // opcode buffer,\r | |
307 | QUESTION_RES_NEXT, // ID of question,\r | |
308 | FORMSTATEID_MAIN_FORM, // identifies form state\r | |
309 | // storage,\r | |
310 | (UINT16) OFFSET_OF (MAIN_FORM_STATE, // value of question stored\r | |
311 | NextPreferredResolution), // at this offset,\r | |
312 | STRING_TOKEN (STR_RES_NEXT), // Prompt,\r | |
313 | STRING_TOKEN (STR_RES_NEXT_HELP), // Help,\r | |
314 | 0, // QuestionFlags,\r | |
315 | EFI_IFR_NUMERIC_SIZE_4, // see sizeof\r | |
316 | // NextPreferredResolution,\r | |
317 | OpCodeBuffer2, // buffer with possible\r | |
318 | // choices,\r | |
319 | NULL // DEFAULT opcodes\r | |
320 | );\r | |
321 | if (OpCode == NULL) {\r | |
322 | Status = EFI_OUT_OF_RESOURCES;\r | |
323 | goto FreeOpCodeBuffer2;\r | |
324 | }\r | |
325 | \r | |
326 | //\r | |
327 | // 4. Update the form with the opcode buffer.\r | |
328 | //\r | |
329 | Status = HiiUpdateForm (PackageList, FormSetGuid, FormId,\r | |
330 | OpCodeBuffer, // buffer with head anchor, and new contents to be\r | |
331 | // inserted at it\r | |
332 | NULL // buffer with tail anchor, for deleting old\r | |
333 | // contents up to it\r | |
334 | );\r | |
335 | \r | |
336 | FreeOpCodeBuffer2:\r | |
337 | HiiFreeOpCodeHandle (OpCodeBuffer2);\r | |
338 | \r | |
339 | FreeOpCodeBuffer:\r | |
340 | HiiFreeOpCodeHandle (OpCodeBuffer);\r | |
341 | \r | |
342 | return Status;\r | |
343 | }\r | |
344 | \r | |
345 | \r | |
346 | /**\r | |
347 | Load and execute the platform configuration.\r | |
348 | \r | |
349 | @retval EFI_SUCCESS Configuration loaded and executed.\r | |
350 | @return Status codes from PlatformConfigLoad().\r | |
351 | **/\r | |
352 | STATIC\r | |
353 | EFI_STATUS\r | |
354 | EFIAPI\r | |
355 | ExecutePlatformConfig (\r | |
356 | VOID\r | |
357 | )\r | |
358 | {\r | |
359 | EFI_STATUS Status;\r | |
360 | PLATFORM_CONFIG PlatformConfig;\r | |
361 | UINT64 OptionalElements;\r | |
362 | \r | |
363 | Status = PlatformConfigLoad (&PlatformConfig, &OptionalElements);\r | |
364 | if (EFI_ERROR (Status)) {\r | |
365 | DEBUG (((Status == EFI_NOT_FOUND) ? EFI_D_VERBOSE : EFI_D_ERROR,\r | |
366 | "%a: failed to load platform config: %r\n", __FUNCTION__, Status));\r | |
367 | return Status;\r | |
368 | }\r | |
369 | \r | |
370 | if (OptionalElements & PLATFORM_CONFIG_F_GRAPHICS_RESOLUTION) {\r | |
371 | //\r | |
372 | // Pass the preferred resolution to GraphicsConsoleDxe via dynamic PCDs.\r | |
373 | //\r | |
374 | PcdSet32 (PcdVideoHorizontalResolution,\r | |
375 | PlatformConfig.HorizontalResolution);\r | |
376 | PcdSet32 (PcdVideoVerticalResolution,\r | |
377 | PlatformConfig.VerticalResolution);\r | |
378 | }\r | |
379 | \r | |
380 | return EFI_SUCCESS;\r | |
381 | }\r | |
382 | \r | |
383 | \r | |
384 | /**\r | |
385 | Entry point for this driver.\r | |
386 | \r | |
387 | @param[in] ImageHandle Image handle of this driver.\r | |
388 | @param[in] SystemTable Pointer to SystemTable.\r | |
389 | \r | |
390 | @retval EFI_SUCESS Driver has loaded successfully.\r | |
391 | @retval EFI_OUT_OF_RESOURCES Failed to install HII packages.\r | |
392 | @return Error codes from lower level functions.\r | |
393 | \r | |
394 | **/\r | |
395 | EFI_STATUS\r | |
396 | EFIAPI\r | |
397 | PlatformInit (\r | |
398 | IN EFI_HANDLE ImageHandle,\r | |
399 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
400 | )\r | |
401 | {\r | |
402 | EFI_STATUS Status;\r | |
403 | \r | |
404 | ExecutePlatformConfig ();\r | |
405 | \r | |
406 | mConfigAccess.ExtractConfig = &ExtractConfig;\r | |
407 | mConfigAccess.RouteConfig = &RouteConfig;\r | |
408 | mConfigAccess.Callback = &Callback;\r | |
409 | \r | |
410 | //\r | |
411 | // Declare ourselves suitable for HII communication.\r | |
412 | //\r | |
413 | Status = gBS->InstallMultipleProtocolInterfaces (&ImageHandle,\r | |
414 | &gEfiDevicePathProtocolGuid, &mPkgDevicePath,\r | |
415 | &gEfiHiiConfigAccessProtocolGuid, &mConfigAccess,\r | |
416 | NULL);\r | |
417 | if (EFI_ERROR (Status)) {\r | |
418 | return Status;\r | |
419 | }\r | |
420 | \r | |
421 | //\r | |
422 | // Publish the HII package list to HII Database.\r | |
423 | //\r | |
424 | mInstalledPackages = HiiAddPackages (\r | |
425 | &gEfiCallerIdGuid, // PackageListGuid\r | |
426 | ImageHandle, // associated DeviceHandle\r | |
427 | PlatformDxeStrings, // 1st package\r | |
428 | PlatformFormsBin, // 2nd package\r | |
429 | NULL // terminator\r | |
430 | );\r | |
431 | if (mInstalledPackages == NULL) {\r | |
432 | Status = EFI_OUT_OF_RESOURCES;\r | |
433 | goto UninstallProtocols;\r | |
434 | }\r | |
435 | \r | |
436 | Status = PopulateForm (mInstalledPackages, &gOvmfPlatformConfigGuid,\r | |
437 | FORMID_MAIN_FORM);\r | |
438 | if (EFI_ERROR (Status)) {\r | |
439 | goto RemovePackages;\r | |
440 | }\r | |
441 | \r | |
442 | return EFI_SUCCESS;\r | |
443 | \r | |
444 | RemovePackages:\r | |
445 | HiiRemovePackages (mInstalledPackages);\r | |
446 | \r | |
447 | UninstallProtocols:\r | |
448 | gBS->UninstallMultipleProtocolInterfaces (ImageHandle,\r | |
449 | &gEfiDevicePathProtocolGuid, &mPkgDevicePath,\r | |
450 | &gEfiHiiConfigAccessProtocolGuid, &mConfigAccess,\r | |
451 | NULL);\r | |
452 | return Status;\r | |
453 | }\r | |
454 | \r | |
455 | /**\r | |
456 | Unload the driver.\r | |
457 | \r | |
458 | @param[in] ImageHandle Handle that identifies the image to evict.\r | |
459 | \r | |
460 | @retval EFI_SUCCESS The image has been unloaded.\r | |
461 | **/\r | |
462 | EFI_STATUS\r | |
463 | EFIAPI\r | |
464 | PlatformUnload (\r | |
465 | IN EFI_HANDLE ImageHandle\r | |
466 | )\r | |
467 | {\r | |
468 | HiiRemovePackages (mInstalledPackages);\r | |
469 | gBS->UninstallMultipleProtocolInterfaces (ImageHandle,\r | |
470 | &gEfiDevicePathProtocolGuid, &mPkgDevicePath,\r | |
471 | &gEfiHiiConfigAccessProtocolGuid, &mConfigAccess,\r | |
472 | NULL);\r | |
473 | return EFI_SUCCESS;\r | |
474 | }\r |