]>
Commit | Line | Data |
---|---|---|
e386b444 | 1 | /** @file\r |
5ad97f35 | 2 | The UEFI Library provides functions and macros that simplify the development of \r |
3 | UEFI Drivers and UEFI Applications. These functions and macros help manage EFI \r | |
4 | events, build simple locks utilizing EFI Task Priority Levels (TPLs), install \r | |
5 | EFI Driver Model related protocols, manage Unicode string tables for UEFI Drivers, \r | |
6 | and print messages on the console output and standard error devices.\r | |
e386b444 | 7 | \r |
8 | Copyright (c) 2006 - 2007, Intel Corporation<BR>\r | |
9 | All rights reserved. This program and the accompanying materials\r | |
10 | are licensed and made available under the terms and conditions of the BSD License\r | |
11 | which accompanies this distribution. The full text of the license may be found at\r | |
12 | http://opensource.org/licenses/bsd-license.php\r | |
13 | \r | |
14 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
15 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
16 | \r | |
e386b444 | 17 | **/\r |
18 | \r | |
1efcc4ae | 19 | \r |
f734a10a | 20 | #include "UefiLibInternal.h"\r |
e386b444 | 21 | \r |
22 | /**\r | |
23 | Compare whether two names of languages are identical.\r | |
24 | \r | |
25 | @param Language1 Name of language 1.\r | |
26 | @param Language2 Name of language 2.\r | |
27 | \r | |
28 | @retval TRUE Language 1 and language 2 are the same.\r | |
29 | @retval FALSE Language 1 and language 2 are not the same.\r | |
30 | \r | |
31 | **/\r | |
e386b444 | 32 | BOOLEAN\r |
33 | CompareIso639LanguageCode (\r | |
34 | IN CONST CHAR8 *Language1,\r | |
35 | IN CONST CHAR8 *Language2\r | |
36 | )\r | |
37 | {\r | |
38 | UINT32 Name1;\r | |
39 | UINT32 Name2;\r | |
40 | \r | |
41 | Name1 = ReadUnaligned24 ((CONST UINT32 *) Language1);\r | |
42 | Name2 = ReadUnaligned24 ((CONST UINT32 *) Language2);\r | |
43 | \r | |
44 | return (BOOLEAN) (Name1 == Name2);\r | |
45 | }\r | |
46 | \r | |
47 | /**\r | |
1d37ab9f | 48 | Retrieves a pointer to the system configuration table from the EFI System Table\r |
49 | based on a specified GUID.\r | |
50 | \r | |
51 | This function searches the list of configuration tables stored in the EFI System Table\r | |
52 | for a table with a GUID that matches TableGuid. If a match is found, then a pointer to\r | |
53 | the configuration table is returned in Table., and EFI_SUCCESS is returned. If a matching GUID\r | |
54 | is not found, then EFI_NOT_FOUND is returned.\r | |
9edc73ad | 55 | If TableGuid is NULL, then ASSERT().\r |
56 | If Table is NULL, then ASSERT().\r | |
e386b444 | 57 | \r |
58 | @param TableGuid Pointer to table's GUID type..\r | |
59 | @param Table Pointer to the table associated with TableGuid in the EFI System Table.\r | |
60 | \r | |
61 | @retval EFI_SUCCESS A configuration table matching TableGuid was found.\r | |
62 | @retval EFI_NOT_FOUND A configuration table matching TableGuid could not be found.\r | |
63 | \r | |
64 | **/\r | |
65 | EFI_STATUS\r | |
66 | EFIAPI\r | |
67 | EfiGetSystemConfigurationTable (\r | |
68 | IN EFI_GUID *TableGuid,\r | |
69 | OUT VOID **Table\r | |
70 | )\r | |
71 | {\r | |
72 | EFI_SYSTEM_TABLE *SystemTable;\r | |
73 | UINTN Index;\r | |
74 | \r | |
75 | ASSERT (TableGuid != NULL);\r | |
76 | ASSERT (Table != NULL);\r | |
77 | \r | |
78 | SystemTable = gST;\r | |
79 | *Table = NULL;\r | |
80 | for (Index = 0; Index < SystemTable->NumberOfTableEntries; Index++) {\r | |
81 | if (CompareGuid (TableGuid, &(SystemTable->ConfigurationTable[Index].VendorGuid))) {\r | |
82 | *Table = SystemTable->ConfigurationTable[Index].VendorTable;\r | |
83 | return EFI_SUCCESS;\r | |
84 | }\r | |
85 | }\r | |
86 | \r | |
87 | return EFI_NOT_FOUND;\r | |
88 | }\r | |
89 | \r | |
90 | /**\r | |
1d37ab9f | 91 | Creates and returns a notification event and registers that event with all the protocol\r |
92 | instances specified by ProtocolGuid.\r | |
93 | \r | |
94 | This function causes the notification function to be executed for every protocol of type\r | |
95 | ProtocolGuid instance that exists in the system when this function is invoked.\r | |
96 | In addition, every time a protocol of type ProtocolGuid instance is installed or reinstalled,\r | |
97 | the notification function is also executed. This function returns the notification event\r | |
98 | that was created. \r | |
99 | If ProtocolGuid is NULL, then ASSERT().\r | |
100 | If NotifyTpl is not a legal TPL value, then ASSERT().\r | |
101 | If NotifyFunction is NULL, then ASSERT().\r | |
102 | If Registration is NULL, then ASSERT().\r | |
e386b444 | 103 | \r |
104 | @param ProtocolGuid Supplies GUID of the protocol upon whose installation the event is fired.\r | |
105 | @param NotifyTpl Supplies the task priority level of the event notifications.\r | |
106 | @param NotifyFunction Supplies the function to notify when the event is signaled.\r | |
107 | @param NotifyContext The context parameter to pass to NotifyFunction.\r | |
108 | @param Registration A pointer to a memory location to receive the registration value.\r | |
1d37ab9f | 109 | This value is passed to LocateHandle() to obtain new handles that\r |
110 | have been added that support the ProtocolGuid-specified protocol. \r | |
e386b444 | 111 | \r |
112 | @return The notification event that was created.\r | |
113 | \r | |
114 | **/\r | |
115 | EFI_EVENT\r | |
116 | EFIAPI\r | |
117 | EfiCreateProtocolNotifyEvent(\r | |
118 | IN EFI_GUID *ProtocolGuid,\r | |
119 | IN EFI_TPL NotifyTpl,\r | |
120 | IN EFI_EVENT_NOTIFY NotifyFunction,\r | |
121 | IN VOID *NotifyContext, OPTIONAL\r | |
122 | OUT VOID **Registration\r | |
123 | )\r | |
124 | {\r | |
125 | EFI_STATUS Status;\r | |
126 | EFI_EVENT Event;\r | |
127 | \r | |
1d37ab9f | 128 | ASSERT (ProtocolGuid != NULL);\r |
129 | ASSERT (NotifyFunction != NULL);\r | |
130 | ASSERT (Registration != NULL);\r | |
131 | \r | |
e386b444 | 132 | //\r |
133 | // Create the event\r | |
134 | //\r | |
135 | \r | |
136 | Status = gBS->CreateEvent (\r | |
137 | EVT_NOTIFY_SIGNAL,\r | |
138 | NotifyTpl,\r | |
139 | NotifyFunction,\r | |
140 | NotifyContext,\r | |
141 | &Event\r | |
142 | );\r | |
143 | ASSERT_EFI_ERROR (Status);\r | |
144 | \r | |
145 | //\r | |
146 | // Register for protocol notifactions on this event\r | |
147 | //\r | |
148 | \r | |
149 | Status = gBS->RegisterProtocolNotify (\r | |
150 | ProtocolGuid,\r | |
151 | Event,\r | |
152 | Registration\r | |
153 | );\r | |
154 | \r | |
155 | ASSERT_EFI_ERROR (Status);\r | |
156 | \r | |
157 | //\r | |
158 | // Kick the event so we will perform an initial pass of\r | |
159 | // current installed drivers\r | |
160 | //\r | |
161 | \r | |
162 | gBS->SignalEvent (Event);\r | |
163 | return Event;\r | |
164 | }\r | |
165 | \r | |
166 | /**\r | |
1d37ab9f | 167 | Creates a named event that can be signaled with EfiNamedEventSignal().\r |
168 | \r | |
e386b444 | 169 | This function creates an event using NotifyTpl, NoifyFunction, and NotifyContext.\r |
1d37ab9f | 170 | This event is signaled with EfiNamedEventSignal(). This provides the ability for one or more\r |
171 | listeners on the same event named by the GUID specified by Name. \r | |
9edc73ad | 172 | If Name is NULL, then ASSERT().\r |
173 | If NotifyTpl is not a legal TPL value, then ASSERT().\r | |
174 | If NotifyFunction is NULL, then ASSERT().\r | |
e386b444 | 175 | \r |
176 | @param Name Supplies GUID name of the event.\r | |
177 | @param NotifyTpl Supplies the task priority level of the event notifications.\r | |
178 | @param NotifyFunction Supplies the function to notify when the event is signaled.\r | |
1d37ab9f | 179 | @param NotifyContext The context parameter to pass to NotifyFunction. \r |
e386b444 | 180 | @param Registration A pointer to a memory location to receive the registration value.\r |
181 | \r | |
182 | @retval EFI_SUCCESS A named event was created.\r | |
183 | @retval EFI_OUT_OF_RESOURCES There are not enough resource to create the named event.\r | |
184 | \r | |
185 | **/\r | |
186 | EFI_STATUS\r | |
187 | EFIAPI\r | |
188 | EfiNamedEventListen (\r | |
189 | IN CONST EFI_GUID *Name,\r | |
190 | IN EFI_TPL NotifyTpl,\r | |
191 | IN EFI_EVENT_NOTIFY NotifyFunction,\r | |
192 | IN CONST VOID *NotifyContext, OPTIONAL\r | |
193 | OUT VOID *Registration OPTIONAL\r | |
194 | )\r | |
195 | {\r | |
196 | EFI_STATUS Status;\r | |
197 | EFI_EVENT Event;\r | |
198 | VOID *RegistrationLocal;\r | |
199 | \r | |
9edc73ad | 200 | ASSERT (Name != NULL);\r |
201 | ASSERT (NotifyFunction != NULL);\r | |
202 | ASSERT (NotifyTpl <= TPL_HIGH_LEVEL);\r | |
203 | \r | |
e386b444 | 204 | //\r |
205 | // Create event\r | |
206 | //\r | |
207 | Status = gBS->CreateEvent (\r | |
208 | EVT_NOTIFY_SIGNAL,\r | |
209 | NotifyTpl,\r | |
210 | NotifyFunction,\r | |
211 | (VOID *) NotifyContext,\r | |
212 | &Event\r | |
213 | );\r | |
214 | ASSERT_EFI_ERROR (Status);\r | |
215 | \r | |
216 | //\r | |
217 | // The Registration is not optional to RegisterProtocolNotify().\r | |
218 | // To make it optional to EfiNamedEventListen(), may need to substitute with a local.\r | |
219 | //\r | |
220 | if (Registration != NULL) {\r | |
221 | RegistrationLocal = Registration;\r | |
222 | } else {\r | |
223 | RegistrationLocal = &RegistrationLocal;\r | |
224 | }\r | |
225 | \r | |
226 | //\r | |
227 | // Register for an installation of protocol interface\r | |
228 | //\r | |
229 | \r | |
230 | Status = gBS->RegisterProtocolNotify (\r | |
231 | (EFI_GUID *) Name,\r | |
232 | Event,\r | |
233 | RegistrationLocal\r | |
234 | );\r | |
235 | ASSERT_EFI_ERROR (Status);\r | |
236 | \r | |
9edc73ad | 237 | return Status;\r |
e386b444 | 238 | }\r |
239 | \r | |
240 | /**\r | |
1d37ab9f | 241 | Signals a named event created with EfiNamedEventListen().\r |
242 | \r | |
243 | This function signals the named event specified by Name. The named event must have been\r | |
244 | created with EfiNamedEventListen().\r | |
245 | If Name is NULL, then ASSERT().\r | |
e386b444 | 246 | \r |
247 | @param Name Supplies GUID name of the event.\r | |
248 | \r | |
249 | @retval EFI_SUCCESS A named event was signaled.\r | |
250 | @retval EFI_OUT_OF_RESOURCES There are not enough resource to signal the named event.\r | |
251 | \r | |
252 | **/\r | |
253 | EFI_STATUS\r | |
254 | EFIAPI\r | |
255 | EfiNamedEventSignal (\r | |
256 | IN CONST EFI_GUID *Name\r | |
257 | )\r | |
258 | {\r | |
259 | EFI_STATUS Status;\r | |
260 | EFI_HANDLE Handle;\r | |
261 | \r | |
1d37ab9f | 262 | ASSERT(Name != NULL);\r |
263 | \r | |
e386b444 | 264 | Handle = NULL;\r |
265 | Status = gBS->InstallProtocolInterface (\r | |
266 | &Handle,\r | |
267 | (EFI_GUID *) Name,\r | |
268 | EFI_NATIVE_INTERFACE,\r | |
269 | NULL\r | |
270 | );\r | |
271 | ASSERT_EFI_ERROR (Status);\r | |
272 | \r | |
273 | Status = gBS->UninstallProtocolInterface (\r | |
274 | Handle,\r | |
275 | (EFI_GUID *) Name,\r | |
276 | NULL\r | |
277 | );\r | |
278 | ASSERT_EFI_ERROR (Status);\r | |
279 | \r | |
9edc73ad | 280 | return Status;\r |
e386b444 | 281 | }\r |
282 | \r | |
283 | /**\r | |
284 | Returns the current TPL.\r | |
285 | \r | |
286 | This function returns the current TPL. There is no EFI service to directly\r | |
287 | retrieve the current TPL. Instead, the RaiseTPL() function is used to raise\r | |
288 | the TPL to TPL_HIGH_LEVEL. This will return the current TPL. The TPL level\r | |
289 | can then immediately be restored back to the current TPL level with a call\r | |
290 | to RestoreTPL().\r | |
291 | \r | |
292 | @param VOID\r | |
293 | \r | |
42eedea9 | 294 | @retval EFI_TPL The current TPL.\r |
e386b444 | 295 | \r |
296 | **/\r | |
297 | EFI_TPL\r | |
298 | EFIAPI\r | |
299 | EfiGetCurrentTpl (\r | |
300 | VOID\r | |
301 | )\r | |
302 | {\r | |
303 | EFI_TPL Tpl;\r | |
304 | \r | |
305 | Tpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);\r | |
306 | gBS->RestoreTPL (Tpl);\r | |
307 | \r | |
308 | return Tpl;\r | |
309 | }\r | |
310 | \r | |
311 | \r | |
312 | /**\r | |
1d37ab9f | 313 | Initializes a basic mutual exclusion lock.\r |
314 | \r | |
315 | This function initializes a basic mutual exclusion lock to the released state \r | |
316 | and returns the lock. Each lock provides mutual exclusion access at its task \r | |
e386b444 | 317 | priority level. Since there is no preemption or multiprocessor support in EFI,\r |
318 | acquiring the lock only consists of raising to the locks TPL.\r | |
9edc73ad | 319 | If Lock is NULL, then ASSERT().\r |
320 | If Priority is not a valid TPL value, then ASSERT().\r | |
e386b444 | 321 | \r |
322 | @param Lock A pointer to the lock data structure to initialize.\r | |
323 | @param Priority EFI TPL associated with the lock.\r | |
324 | \r | |
325 | @return The lock.\r | |
326 | \r | |
327 | **/\r | |
328 | EFI_LOCK *\r | |
329 | EFIAPI\r | |
330 | EfiInitializeLock (\r | |
331 | IN OUT EFI_LOCK *Lock,\r | |
332 | IN EFI_TPL Priority\r | |
333 | )\r | |
334 | {\r | |
335 | ASSERT (Lock != NULL);\r | |
336 | ASSERT (Priority <= TPL_HIGH_LEVEL);\r | |
337 | \r | |
338 | Lock->Tpl = Priority;\r | |
339 | Lock->OwnerTpl = TPL_APPLICATION;\r | |
340 | Lock->Lock = EfiLockReleased ;\r | |
341 | return Lock;\r | |
342 | }\r | |
343 | \r | |
344 | /**\r | |
1d37ab9f | 345 | Acquires ownership of a lock.\r |
346 | \r | |
347 | This function raises the system's current task priority level to the task \r | |
348 | priority level of the mutual exclusion lock. Then, it places the lock in the \r | |
e386b444 | 349 | acquired state.\r |
9edc73ad | 350 | If Lock is NULL, then ASSERT().\r |
351 | If Lock is not initialized, then ASSERT().\r | |
352 | If Lock is already in the acquired state, then ASSERT().\r | |
e386b444 | 353 | \r |
1d37ab9f | 354 | @param Lock A pointer to the lock to acquire.\r |
e386b444 | 355 | \r |
356 | **/\r | |
357 | VOID\r | |
358 | EFIAPI\r | |
359 | EfiAcquireLock (\r | |
360 | IN EFI_LOCK *Lock\r | |
361 | )\r | |
362 | {\r | |
363 | ASSERT (Lock != NULL);\r | |
364 | ASSERT (Lock->Lock == EfiLockReleased);\r | |
365 | \r | |
366 | Lock->OwnerTpl = gBS->RaiseTPL (Lock->Tpl);\r | |
367 | Lock->Lock = EfiLockAcquired;\r | |
368 | }\r | |
369 | \r | |
370 | /**\r | |
1d37ab9f | 371 | Acquires ownership of a lock. If the lock is already owned , then an error is returned.\r |
372 | \r | |
373 | This function raises the system's current task priority level to the task \r | |
374 | priority level of the mutual exclusion lock. Then, it attempts to place the \r | |
e386b444 | 375 | lock in the acquired state.\r |
1d37ab9f | 376 | If Lock is NULL, then ASSERT().\r |
377 | If Lock is not initialized, then ASSERT().\r | |
e386b444 | 378 | \r |
379 | @param Lock A pointer to the lock to acquire.\r | |
380 | \r | |
381 | @retval EFI_SUCCESS The lock was acquired.\r | |
382 | @retval EFI_ACCESS_DENIED The lock could not be acquired because it is already owned.\r | |
383 | \r | |
384 | **/\r | |
385 | EFI_STATUS\r | |
386 | EFIAPI\r | |
387 | EfiAcquireLockOrFail (\r | |
388 | IN EFI_LOCK *Lock\r | |
389 | )\r | |
390 | {\r | |
391 | \r | |
392 | ASSERT (Lock != NULL);\r | |
393 | ASSERT (Lock->Lock != EfiLockUninitialized);\r | |
394 | \r | |
395 | if (Lock->Lock == EfiLockAcquired) {\r | |
396 | //\r | |
397 | // Lock is already owned, so bail out\r | |
398 | //\r | |
399 | return EFI_ACCESS_DENIED;\r | |
400 | }\r | |
401 | \r | |
402 | Lock->OwnerTpl = gBS->RaiseTPL (Lock->Tpl);\r | |
403 | \r | |
404 | Lock->Lock = EfiLockAcquired;\r | |
405 | \r | |
406 | return EFI_SUCCESS;\r | |
407 | }\r | |
408 | \r | |
409 | /**\r | |
1d37ab9f | 410 | Releases ownership of a lock.\r |
411 | \r | |
412 | This function transitions a mutual exclusion lock from the acquired state to \r | |
413 | the released state, and restores the system's task priority level to its \r | |
e386b444 | 414 | previous level.\r |
1d37ab9f | 415 | If Lock is NULL, then ASSERT().\r |
416 | If Lock is not initialized, then ASSERT().\r | |
417 | If Lock is already in the released state, then ASSERT().\r | |
e386b444 | 418 | \r |
419 | @param Lock A pointer to the lock to release.\r | |
420 | \r | |
421 | **/\r | |
422 | VOID\r | |
423 | EFIAPI\r | |
424 | EfiReleaseLock (\r | |
425 | IN EFI_LOCK *Lock\r | |
426 | )\r | |
427 | {\r | |
428 | EFI_TPL Tpl;\r | |
429 | \r | |
430 | ASSERT (Lock != NULL);\r | |
431 | ASSERT (Lock->Lock == EfiLockAcquired);\r | |
432 | \r | |
433 | Tpl = Lock->OwnerTpl;\r | |
434 | \r | |
435 | Lock->Lock = EfiLockReleased;\r | |
436 | \r | |
437 | gBS->RestoreTPL (Tpl);\r | |
438 | }\r | |
439 | \r | |
440 | /**\r | |
441 | Tests whether a controller handle is being managed by a specific driver.\r | |
442 | \r | |
443 | This function tests whether the driver specified by DriverBindingHandle is\r | |
444 | currently managing the controller specified by ControllerHandle. This test\r | |
445 | is performed by evaluating if the the protocol specified by ProtocolGuid is\r | |
446 | present on ControllerHandle and is was opened by DriverBindingHandle with an\r | |
447 | attribute of EFI_OPEN_PROTOCOL_BY_DRIVER.\r | |
448 | If ProtocolGuid is NULL, then ASSERT().\r | |
449 | \r | |
450 | @param ControllerHandle A handle for a controller to test.\r | |
451 | @param DriverBindingHandle Specifies the driver binding handle for the\r | |
452 | driver.\r | |
453 | @param ProtocolGuid Specifies the protocol that the driver specified\r | |
454 | by DriverBindingHandle opens in its Start()\r | |
455 | function.\r | |
456 | \r | |
457 | @retval EFI_SUCCESS ControllerHandle is managed by the driver\r | |
458 | specifed by DriverBindingHandle.\r | |
459 | @retval EFI_UNSUPPORTED ControllerHandle is not managed by the driver\r | |
460 | specifed by DriverBindingHandle.\r | |
461 | \r | |
462 | **/\r | |
463 | EFI_STATUS\r | |
464 | EFIAPI\r | |
465 | EfiTestManagedDevice (\r | |
466 | IN CONST EFI_HANDLE ControllerHandle,\r | |
467 | IN CONST EFI_HANDLE DriverBindingHandle,\r | |
468 | IN CONST EFI_GUID *ProtocolGuid\r | |
469 | )\r | |
470 | {\r | |
471 | EFI_STATUS Status;\r | |
472 | VOID *ManagedInterface;\r | |
473 | \r | |
474 | ASSERT (ProtocolGuid != NULL);\r | |
475 | \r | |
476 | Status = gBS->OpenProtocol (\r | |
477 | ControllerHandle,\r | |
478 | (EFI_GUID *) ProtocolGuid,\r | |
479 | &ManagedInterface,\r | |
480 | DriverBindingHandle,\r | |
481 | ControllerHandle,\r | |
482 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
483 | );\r | |
484 | if (!EFI_ERROR (Status)) {\r | |
485 | gBS->CloseProtocol (\r | |
486 | ControllerHandle,\r | |
487 | (EFI_GUID *) ProtocolGuid,\r | |
488 | DriverBindingHandle,\r | |
489 | ControllerHandle\r | |
490 | );\r | |
491 | return EFI_UNSUPPORTED;\r | |
492 | }\r | |
493 | \r | |
494 | if (Status != EFI_ALREADY_STARTED) {\r | |
495 | return EFI_UNSUPPORTED;\r | |
496 | }\r | |
497 | \r | |
498 | return EFI_SUCCESS;\r | |
499 | }\r | |
500 | \r | |
501 | /**\r | |
502 | Tests whether a child handle is a child device of the controller.\r | |
503 | \r | |
504 | This function tests whether ChildHandle is one of the children of\r | |
505 | ControllerHandle. This test is performed by checking to see if the protocol\r | |
506 | specified by ProtocolGuid is present on ControllerHandle and opened by\r | |
507 | ChildHandle with an attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.\r | |
508 | If ProtocolGuid is NULL, then ASSERT().\r | |
509 | \r | |
510 | @param ControllerHandle A handle for a (parent) controller to test.\r | |
511 | @param ChildHandle A child handle to test.\r | |
42eedea9 | 512 | @param ProtocolGuid Supplies the protocol that the child controller\r |
e386b444 | 513 | opens on its parent controller.\r |
514 | \r | |
515 | @retval EFI_SUCCESS ChildHandle is a child of the ControllerHandle.\r | |
516 | @retval EFI_UNSUPPORTED ChildHandle is not a child of the\r | |
517 | ControllerHandle.\r | |
518 | \r | |
519 | **/\r | |
520 | EFI_STATUS\r | |
521 | EFIAPI\r | |
522 | EfiTestChildHandle (\r | |
523 | IN CONST EFI_HANDLE ControllerHandle,\r | |
524 | IN CONST EFI_HANDLE ChildHandle,\r | |
525 | IN CONST EFI_GUID *ProtocolGuid\r | |
526 | )\r | |
527 | {\r | |
528 | EFI_STATUS Status;\r | |
529 | EFI_OPEN_PROTOCOL_INFORMATION_ENTRY *OpenInfoBuffer;\r | |
530 | UINTN EntryCount;\r | |
531 | UINTN Index;\r | |
532 | \r | |
533 | ASSERT (ProtocolGuid != NULL);\r | |
534 | \r | |
535 | //\r | |
536 | // Retrieve the list of agents that are consuming the specific protocol\r | |
537 | // on ControllerHandle.\r | |
538 | //\r | |
539 | Status = gBS->OpenProtocolInformation (\r | |
540 | ControllerHandle,\r | |
541 | (EFI_GUID *) ProtocolGuid,\r | |
542 | &OpenInfoBuffer,\r | |
543 | &EntryCount\r | |
544 | );\r | |
545 | if (EFI_ERROR (Status)) {\r | |
546 | return EFI_UNSUPPORTED;\r | |
547 | }\r | |
548 | \r | |
549 | //\r | |
550 | // Inspect if ChildHandle is one of the agents.\r | |
551 | //\r | |
552 | Status = EFI_UNSUPPORTED;\r | |
553 | for (Index = 0; Index < EntryCount; Index++) {\r | |
554 | if ((OpenInfoBuffer[Index].ControllerHandle == ChildHandle) &&\r | |
555 | (OpenInfoBuffer[Index].Attributes & EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER) != 0) {\r | |
556 | Status = EFI_SUCCESS;\r | |
557 | break;\r | |
558 | }\r | |
559 | }\r | |
560 | \r | |
561 | FreePool (OpenInfoBuffer);\r | |
562 | return Status;\r | |
563 | }\r | |
564 | \r | |
565 | /**\r | |
dd51a993 | 566 | This function looks up a Unicode string in UnicodeStringTable.\r |
dd51a993 | 567 | \r |
1d37ab9f | 568 | If Language is a member of SupportedLanguages and a Unicode string is found in\r |
569 | UnicodeStringTable that matches the language code specified by Language, then it\r | |
570 | is returned in UnicodeString.\r | |
571 | \r | |
572 | @param Language A pointer to the ISO 639-2 language code for the \r | |
573 | Unicode string to look up and return.\r | |
574 | @param SupportedLanguages A pointer to the set of ISO 639-2 language codes \r | |
575 | that the Unicode string table supports. Language \r | |
576 | must be a member of this set.\r | |
577 | @param UnicodeStringTable A pointer to the table of Unicode strings.\r | |
578 | @param UnicodeString A pointer to the Unicode string from UnicodeStringTable\r | |
579 | that matches the language specified by Language.\r | |
580 | \r | |
581 | @retval EFI_SUCCESS The Unicode string that matches the language \r | |
582 | specified by Language was found\r | |
583 | in the table of Unicoide strings UnicodeStringTable, \r | |
584 | and it was returned in UnicodeString.\r | |
585 | @retval EFI_INVALID_PARAMETER Language is NULL.\r | |
586 | @retval EFI_INVALID_PARAMETER UnicodeString is NULL.\r | |
587 | @retval EFI_UNSUPPORTED SupportedLanguages is NULL.\r | |
588 | @retval EFI_UNSUPPORTED UnicodeStringTable is NULL.\r | |
589 | @retval EFI_UNSUPPORTED The language specified by Language is not a \r | |
590 | member of SupportedLanguages.\r | |
591 | @retval EFI_UNSUPPORTED The language specified by Language is not \r | |
592 | supported by UnicodeStringTable.\r | |
e386b444 | 593 | \r |
594 | **/\r | |
595 | EFI_STATUS\r | |
596 | EFIAPI\r | |
597 | LookupUnicodeString (\r | |
598 | IN CONST CHAR8 *Language,\r | |
599 | IN CONST CHAR8 *SupportedLanguages,\r | |
600 | IN CONST EFI_UNICODE_STRING_TABLE *UnicodeStringTable,\r | |
601 | OUT CHAR16 **UnicodeString\r | |
602 | )\r | |
603 | {\r | |
604 | //\r | |
605 | // Make sure the parameters are valid\r | |
606 | //\r | |
607 | if (Language == NULL || UnicodeString == NULL) {\r | |
608 | return EFI_INVALID_PARAMETER;\r | |
609 | }\r | |
610 | \r | |
611 | //\r | |
612 | // If there are no supported languages, or the Unicode String Table is empty, then the\r | |
613 | // Unicode String specified by Language is not supported by this Unicode String Table\r | |
614 | //\r | |
615 | if (SupportedLanguages == NULL || UnicodeStringTable == NULL) {\r | |
616 | return EFI_UNSUPPORTED;\r | |
617 | }\r | |
618 | \r | |
619 | //\r | |
620 | // Make sure Language is in the set of Supported Languages\r | |
621 | //\r | |
622 | while (*SupportedLanguages != 0) {\r | |
623 | if (CompareIso639LanguageCode (Language, SupportedLanguages)) {\r | |
624 | \r | |
625 | //\r | |
626 | // Search the Unicode String Table for the matching Language specifier\r | |
627 | //\r | |
628 | while (UnicodeStringTable->Language != NULL) {\r | |
629 | if (CompareIso639LanguageCode (Language, UnicodeStringTable->Language)) {\r | |
630 | \r | |
631 | //\r | |
632 | // A matching string was found, so return it\r | |
633 | //\r | |
634 | *UnicodeString = UnicodeStringTable->UnicodeString;\r | |
635 | return EFI_SUCCESS;\r | |
636 | }\r | |
637 | \r | |
638 | UnicodeStringTable++;\r | |
639 | }\r | |
640 | \r | |
641 | return EFI_UNSUPPORTED;\r | |
642 | }\r | |
643 | \r | |
644 | SupportedLanguages += 3;\r | |
645 | }\r | |
646 | \r | |
647 | return EFI_UNSUPPORTED;\r | |
648 | }\r | |
649 | \r | |
dd51a993 | 650 | \r |
651 | \r | |
e386b444 | 652 | /**\r |
dd51a993 | 653 | This function looks up a Unicode string in UnicodeStringTable.\r |
654 | If Language is a member of SupportedLanguages and a Unicode\r | |
655 | string is found in UnicodeStringTable that matches the\r | |
656 | language code specified by Language, then it is returned in\r | |
657 | UnicodeString.\r | |
658 | \r | |
659 | @param Language A pointer to the ISO 639-2 or\r | |
660 | RFC 3066 language code for the\r | |
661 | Unicode string to look up and\r | |
1d37ab9f | 662 | return. \r |
dd51a993 | 663 | @param SupportedLanguages A pointer to the set of ISO\r |
664 | 639-2 or RFC 3066 language\r | |
665 | codes that the Unicode string\r | |
666 | table supports. Language must\r | |
1d37ab9f | 667 | be a member of this set. \r |
dd51a993 | 668 | @param UnicodeStringTable A pointer to the table of\r |
1d37ab9f | 669 | Unicode strings. \r |
dd51a993 | 670 | @param UnicodeString A pointer to the Unicode\r |
671 | string from UnicodeStringTable\r | |
672 | that matches the language\r | |
673 | specified by Language.\r | |
dd51a993 | 674 | @param Iso639Language Specify the language code\r |
675 | format supported. If true,\r | |
676 | then the format follow ISO\r | |
677 | 639-2. If false, then it\r | |
678 | follows RFC3066.\r | |
dd51a993 | 679 | @retval EFI_SUCCESS The Unicode string that\r |
680 | matches the language specified\r | |
681 | by Language was found in the\r | |
682 | table of Unicoide strings\r | |
683 | UnicodeStringTable, and it was\r | |
684 | returned in UnicodeString.\r | |
685 | \r | |
1d37ab9f | 686 | @retval EFI_INVALID_PARAMETER Language is NULL. \r |
687 | @retval EFI_INVALID_PARAMETER UnicodeString is NULL. \r | |
688 | @retval EFI_UNSUPPORTED SupportedLanguages is NULL. \r | |
dd51a993 | 689 | @retval EFI_UNSUPPORTED UnicodeStringTable is NULL.\r |
dd51a993 | 690 | @retval EFI_UNSUPPORTED The language specified by\r |
691 | Language is not a member\r | |
1d37ab9f | 692 | ofSupportedLanguages. \r |
dd51a993 | 693 | @retval EFI_UNSUPPORTED The language specified by\r |
694 | Language is not supported by\r | |
695 | UnicodeStringTable.\r | |
696 | \r | |
697 | **/\r | |
698 | EFI_STATUS\r | |
9edc73ad | 699 | \r |
dd51a993 | 700 | EFIAPI\r |
701 | LookupUnicodeString2 (\r | |
702 | IN CONST CHAR8 *Language,\r | |
703 | IN CONST CHAR8 *SupportedLanguages,\r | |
704 | IN CONST EFI_UNICODE_STRING_TABLE *UnicodeStringTable,\r | |
705 | OUT CHAR16 **UnicodeString,\r | |
706 | IN BOOLEAN Iso639Language\r | |
707 | )\r | |
708 | {\r | |
709 | BOOLEAN Found;\r | |
710 | UINTN Index;\r | |
711 | CHAR8 *LanguageString;\r | |
712 | \r | |
713 | //\r | |
714 | // Make sure the parameters are valid\r | |
715 | //\r | |
716 | if (Language == NULL || UnicodeString == NULL) {\r | |
717 | return EFI_INVALID_PARAMETER;\r | |
718 | }\r | |
719 | \r | |
720 | //\r | |
721 | // If there are no supported languages, or the Unicode String Table is empty, then the\r | |
722 | // Unicode String specified by Language is not supported by this Unicode String Table\r | |
723 | //\r | |
724 | if (SupportedLanguages == NULL || UnicodeStringTable == NULL) {\r | |
725 | return EFI_UNSUPPORTED;\r | |
726 | }\r | |
727 | \r | |
728 | //\r | |
729 | // Make sure Language is in the set of Supported Languages\r | |
730 | //\r | |
731 | Found = FALSE;\r | |
732 | while (*SupportedLanguages != 0) {\r | |
733 | if (Iso639Language) {\r | |
734 | if (CompareIso639LanguageCode (Language, SupportedLanguages)) {\r | |
735 | Found = TRUE;\r | |
736 | break;\r | |
737 | }\r | |
738 | SupportedLanguages += 3;\r | |
739 | } else {\r | |
740 | for (Index = 0; SupportedLanguages[Index] != 0 && SupportedLanguages[Index] != ';'; Index++);\r | |
634aa59d | 741 | if ((AsciiStrnCmp(SupportedLanguages, Language, Index) == 0) && (Language[Index] == 0)) {\r |
dd51a993 | 742 | Found = TRUE;\r |
743 | break;\r | |
744 | }\r | |
745 | SupportedLanguages += Index;\r | |
746 | for (; *SupportedLanguages != 0 && *SupportedLanguages == ';'; SupportedLanguages++);\r | |
747 | }\r | |
748 | }\r | |
749 | \r | |
750 | //\r | |
751 | // If Language is not a member of SupportedLanguages, then return EFI_UNSUPPORTED\r | |
752 | //\r | |
753 | if (!Found) {\r | |
754 | return EFI_UNSUPPORTED;\r | |
755 | }\r | |
756 | \r | |
757 | //\r | |
758 | // Search the Unicode String Table for the matching Language specifier\r | |
759 | //\r | |
760 | while (UnicodeStringTable->Language != NULL) {\r | |
761 | LanguageString = UnicodeStringTable->Language;\r | |
762 | while (0 != *LanguageString) {\r | |
763 | for (Index = 0 ;LanguageString[Index] != 0 && LanguageString[Index] != ';'; Index++);\r | |
764 | if (AsciiStrnCmp(LanguageString, Language, Index) == 0) {\r | |
765 | *UnicodeString = UnicodeStringTable->UnicodeString;\r | |
766 | return EFI_SUCCESS;\r | |
767 | }\r | |
768 | LanguageString += Index;\r | |
769 | for (Index = 0 ;LanguageString[Index] != 0 && LanguageString[Index] == ';'; Index++);\r | |
770 | }\r | |
771 | UnicodeStringTable++;\r | |
772 | }\r | |
773 | \r | |
774 | return EFI_UNSUPPORTED;\r | |
775 | }\r | |
776 | \r | |
777 | \r | |
778 | /**\r | |
e386b444 | 779 | This function adds a Unicode string to UnicodeStringTable.\r |
1d37ab9f | 780 | \r |
781 | If Language is a member of SupportedLanguages then UnicodeString is added to \r | |
782 | UnicodeStringTable. New buffers are allocated for both Language and \r | |
783 | UnicodeString. The contents of Language and UnicodeString are copied into \r | |
784 | these new buffers. These buffers are automatically freed when \r | |
e386b444 | 785 | FreeUnicodeStringTable() is called.\r |
786 | \r | |
1d37ab9f | 787 | @param Language A pointer to the ISO 639-2 language code for the Unicode \r |
e386b444 | 788 | string to add.\r |
1d37ab9f | 789 | @param SupportedLanguages A pointer to the set of ISO 639-2 language codes\r |
790 | that the Unicode string table supports.\r | |
791 | Language must be a member of this set.\r | |
792 | @param UnicodeStringTable A pointer to the table of Unicode strings.\r | |
793 | @param UnicodeString A pointer to the Unicode string to add.\r | |
794 | \r | |
795 | @retval EFI_SUCCESS The Unicode string that matches the language \r | |
796 | specified by Language was found in the table of \r | |
797 | Unicode strings UnicodeStringTable, and it was \r | |
e386b444 | 798 | returned in UnicodeString.\r |
799 | @retval EFI_INVALID_PARAMETER Language is NULL.\r | |
800 | @retval EFI_INVALID_PARAMETER UnicodeString is NULL.\r | |
801 | @retval EFI_INVALID_PARAMETER UnicodeString is an empty string.\r | |
802 | @retval EFI_UNSUPPORTED SupportedLanguages is NULL.\r | |
1d37ab9f | 803 | @retval EFI_ALREADY_STARTED A Unicode string with language Language is \r |
804 | already present in UnicodeStringTable.\r | |
805 | @retval EFI_OUT_OF_RESOURCES There is not enough memory to add another \r | |
806 | Unicode string to UnicodeStringTable.\r | |
807 | @retval EFI_UNSUPPORTED The language specified by Language is not a \r | |
808 | member of SupportedLanguages.\r | |
e386b444 | 809 | \r |
810 | **/\r | |
811 | EFI_STATUS\r | |
812 | EFIAPI\r | |
813 | AddUnicodeString (\r | |
814 | IN CONST CHAR8 *Language,\r | |
815 | IN CONST CHAR8 *SupportedLanguages,\r | |
816 | IN EFI_UNICODE_STRING_TABLE **UnicodeStringTable,\r | |
817 | IN CONST CHAR16 *UnicodeString\r | |
818 | )\r | |
819 | {\r | |
820 | UINTN NumberOfEntries;\r | |
821 | EFI_UNICODE_STRING_TABLE *OldUnicodeStringTable;\r | |
822 | EFI_UNICODE_STRING_TABLE *NewUnicodeStringTable;\r | |
823 | UINTN UnicodeStringLength;\r | |
824 | \r | |
825 | //\r | |
826 | // Make sure the parameter are valid\r | |
827 | //\r | |
828 | if (Language == NULL || UnicodeString == NULL || UnicodeStringTable == NULL) {\r | |
829 | return EFI_INVALID_PARAMETER;\r | |
830 | }\r | |
831 | \r | |
832 | //\r | |
833 | // If there are no supported languages, then a Unicode String can not be added\r | |
834 | //\r | |
835 | if (SupportedLanguages == NULL) {\r | |
836 | return EFI_UNSUPPORTED;\r | |
837 | }\r | |
838 | \r | |
839 | //\r | |
840 | // If the Unicode String is empty, then a Unicode String can not be added\r | |
841 | //\r | |
842 | if (UnicodeString[0] == 0) {\r | |
843 | return EFI_INVALID_PARAMETER;\r | |
844 | }\r | |
845 | \r | |
846 | //\r | |
847 | // Make sure Language is a member of SupportedLanguages\r | |
848 | //\r | |
849 | while (*SupportedLanguages != 0) {\r | |
850 | if (CompareIso639LanguageCode (Language, SupportedLanguages)) {\r | |
851 | \r | |
852 | //\r | |
853 | // Determine the size of the Unicode String Table by looking for a NULL Language entry\r | |
854 | //\r | |
855 | NumberOfEntries = 0;\r | |
856 | if (*UnicodeStringTable != NULL) {\r | |
857 | OldUnicodeStringTable = *UnicodeStringTable;\r | |
858 | while (OldUnicodeStringTable->Language != NULL) {\r | |
859 | if (CompareIso639LanguageCode (Language, OldUnicodeStringTable->Language)) {\r | |
860 | return EFI_ALREADY_STARTED;\r | |
861 | }\r | |
862 | \r | |
863 | OldUnicodeStringTable++;\r | |
864 | NumberOfEntries++;\r | |
865 | }\r | |
866 | }\r | |
867 | \r | |
868 | //\r | |
869 | // Allocate space for a new Unicode String Table. It must hold the current number of\r | |
870 | // entries, plus 1 entry for the new Unicode String, plus 1 entry for the end of table\r | |
871 | // marker\r | |
872 | //\r | |
873 | NewUnicodeStringTable = AllocatePool ((NumberOfEntries + 2) * sizeof (EFI_UNICODE_STRING_TABLE));\r | |
874 | if (NewUnicodeStringTable == NULL) {\r | |
875 | return EFI_OUT_OF_RESOURCES;\r | |
876 | }\r | |
877 | \r | |
878 | //\r | |
879 | // If the current Unicode String Table contains any entries, then copy them to the\r | |
880 | // newly allocated Unicode String Table.\r | |
881 | //\r | |
882 | if (*UnicodeStringTable != NULL) {\r | |
883 | CopyMem (\r | |
884 | NewUnicodeStringTable,\r | |
885 | *UnicodeStringTable,\r | |
886 | NumberOfEntries * sizeof (EFI_UNICODE_STRING_TABLE)\r | |
887 | );\r | |
888 | }\r | |
889 | \r | |
890 | //\r | |
891 | // Allocate space for a copy of the Language specifier\r | |
892 | //\r | |
893 | NewUnicodeStringTable[NumberOfEntries].Language = AllocateCopyPool (3, Language);\r | |
894 | if (NewUnicodeStringTable[NumberOfEntries].Language == NULL) {\r | |
895 | gBS->FreePool (NewUnicodeStringTable);\r | |
896 | return EFI_OUT_OF_RESOURCES;\r | |
897 | }\r | |
898 | \r | |
899 | //\r | |
900 | // Compute the length of the Unicode String\r | |
901 | //\r | |
902 | for (UnicodeStringLength = 0; UnicodeString[UnicodeStringLength] != 0; UnicodeStringLength++)\r | |
903 | ;\r | |
904 | \r | |
905 | //\r | |
906 | // Allocate space for a copy of the Unicode String\r | |
907 | //\r | |
908 | NewUnicodeStringTable[NumberOfEntries].UnicodeString = AllocateCopyPool (\r | |
909 | (UnicodeStringLength + 1) * sizeof (CHAR16),\r | |
910 | UnicodeString\r | |
911 | );\r | |
912 | if (NewUnicodeStringTable[NumberOfEntries].UnicodeString == NULL) {\r | |
913 | gBS->FreePool (NewUnicodeStringTable[NumberOfEntries].Language);\r | |
914 | gBS->FreePool (NewUnicodeStringTable);\r | |
915 | return EFI_OUT_OF_RESOURCES;\r | |
916 | }\r | |
917 | \r | |
918 | //\r | |
919 | // Mark the end of the Unicode String Table\r | |
920 | //\r | |
921 | NewUnicodeStringTable[NumberOfEntries + 1].Language = NULL;\r | |
922 | NewUnicodeStringTable[NumberOfEntries + 1].UnicodeString = NULL;\r | |
923 | \r | |
924 | //\r | |
925 | // Free the old Unicode String Table\r | |
926 | //\r | |
927 | if (*UnicodeStringTable != NULL) {\r | |
928 | gBS->FreePool (*UnicodeStringTable);\r | |
929 | }\r | |
930 | \r | |
931 | //\r | |
932 | // Point UnicodeStringTable at the newly allocated Unicode String Table\r | |
933 | //\r | |
934 | *UnicodeStringTable = NewUnicodeStringTable;\r | |
935 | \r | |
936 | return EFI_SUCCESS;\r | |
937 | }\r | |
938 | \r | |
939 | SupportedLanguages += 3;\r | |
940 | }\r | |
941 | \r | |
942 | return EFI_UNSUPPORTED;\r | |
943 | }\r | |
944 | \r | |
dd51a993 | 945 | \r |
946 | /**\r | |
dd51a993 | 947 | This function adds a Unicode string to UnicodeStringTable.\r |
1d37ab9f | 948 | \r |
dd51a993 | 949 | If Language is a member of SupportedLanguages then\r |
950 | UnicodeString is added to UnicodeStringTable. New buffers are\r | |
951 | allocated for both Language and UnicodeString. The contents\r | |
952 | of Language and UnicodeString are copied into these new\r | |
953 | buffers. These buffers are automatically freed when\r | |
954 | FreeUnicodeStringTable() is called.\r | |
955 | \r | |
956 | @param Language A pointer to the ISO 639-2 or\r | |
957 | RFC 3066 language code for the\r | |
1d37ab9f | 958 | Unicode string to add. \r |
dd51a993 | 959 | @param SupportedLanguages A pointer to the set of ISO\r |
1d37ab9f | 960 | 639-2 or RFC 3066 language\r |
dd51a993 | 961 | codes that the Unicode string\r |
962 | table supports. Language must\r | |
1d37ab9f | 963 | be a member of this set. \r |
dd51a993 | 964 | @param UnicodeStringTable A pointer to the table of\r |
1d37ab9f | 965 | Unicode strings. \r |
dd51a993 | 966 | @param UnicodeString A pointer to the Unicode\r |
1d37ab9f | 967 | string to add. \r |
dd51a993 | 968 | @param Iso639Language Specify the language code\r |
969 | format supported. If true,\r | |
970 | then the format follow ISO\r | |
971 | 639-2. If false, then it\r | |
972 | follows RFC3066.\r | |
dd51a993 | 973 | @retval EFI_SUCCESS The Unicode string that\r |
974 | matches the language specified\r | |
975 | by Language was found in the\r | |
976 | table of Unicode strings\r | |
977 | UnicodeStringTable, and it was\r | |
978 | returned in UnicodeString.\r | |
979 | \r | |
1d37ab9f | 980 | @retval EFI_INVALID_PARAMETER Language is NULL. \r |
981 | @retval EFI_INVALID_PARAMETER UnicodeString is NULL. \r | |
982 | @retval EFI_INVALID_PARAMETER UnicodeString is an empty string. \r | |
983 | @retval EFI_UNSUPPORTED SupportedLanguages is NULL. \r | |
dd51a993 | 984 | @retval EFI_ALREADY_STARTED A Unicode string with language\r |
985 | Language is already present in\r | |
1d37ab9f | 986 | UnicodeStringTable. \r |
dd51a993 | 987 | @retval EFI_OUT_OF_RESOURCES There is not enough memory to\r |
988 | add another Unicode string to\r | |
1d37ab9f | 989 | UnicodeStringTable. \r |
dd51a993 | 990 | @retval EFI_UNSUPPORTED The language specified by\r |
991 | Language is not a member of\r | |
992 | SupportedLanguages.\r | |
993 | \r | |
994 | **/\r | |
995 | EFI_STATUS\r | |
996 | EFIAPI\r | |
997 | AddUnicodeString2 (\r | |
998 | IN CONST CHAR8 *Language,\r | |
999 | IN CONST CHAR8 *SupportedLanguages,\r | |
1000 | IN EFI_UNICODE_STRING_TABLE **UnicodeStringTable,\r | |
1001 | IN CONST CHAR16 *UnicodeString,\r | |
1002 | IN BOOLEAN Iso639Language\r | |
1003 | )\r | |
1004 | {\r | |
1005 | UINTN NumberOfEntries;\r | |
1006 | EFI_UNICODE_STRING_TABLE *OldUnicodeStringTable;\r | |
1007 | EFI_UNICODE_STRING_TABLE *NewUnicodeStringTable;\r | |
1008 | UINTN UnicodeStringLength;\r | |
1009 | BOOLEAN Found;\r | |
1010 | UINTN Index;\r | |
1011 | CHAR8 *LanguageString;\r | |
1012 | \r | |
1013 | //\r | |
1014 | // Make sure the parameter are valid\r | |
1015 | //\r | |
1016 | if (Language == NULL || UnicodeString == NULL || UnicodeStringTable == NULL) {\r | |
1017 | return EFI_INVALID_PARAMETER;\r | |
1018 | }\r | |
1019 | \r | |
1020 | //\r | |
1021 | // If there are no supported languages, then a Unicode String can not be added\r | |
1022 | //\r | |
1023 | if (SupportedLanguages == NULL) {\r | |
1024 | return EFI_UNSUPPORTED;\r | |
1025 | }\r | |
1026 | \r | |
1027 | //\r | |
1028 | // If the Unicode String is empty, then a Unicode String can not be added\r | |
1029 | //\r | |
1030 | if (UnicodeString[0] == 0) {\r | |
1031 | return EFI_INVALID_PARAMETER;\r | |
1032 | }\r | |
1033 | \r | |
1034 | //\r | |
1035 | // Make sure Language is a member of SupportedLanguages\r | |
1036 | //\r | |
1037 | Found = FALSE;\r | |
1038 | while (*SupportedLanguages != 0) {\r | |
1039 | if (Iso639Language) {\r | |
1040 | if (CompareIso639LanguageCode (Language, SupportedLanguages)) {\r | |
1041 | Found = TRUE;\r | |
1042 | break;\r | |
1043 | }\r | |
1044 | SupportedLanguages += 3;\r | |
1045 | } else {\r | |
1046 | for (Index = 0; SupportedLanguages[Index] != 0 && SupportedLanguages[Index] != ';'; Index++);\r | |
1047 | if (AsciiStrnCmp(SupportedLanguages, Language, Index) == 0) {\r | |
1048 | Found = TRUE;\r | |
1049 | break;\r | |
1050 | }\r | |
1051 | SupportedLanguages += Index;\r | |
1052 | for (; *SupportedLanguages != 0 && *SupportedLanguages == ';'; SupportedLanguages++);\r | |
1053 | }\r | |
1054 | }\r | |
1055 | \r | |
1056 | //\r | |
1057 | // If Language is not a member of SupportedLanguages, then return EFI_UNSUPPORTED\r | |
1058 | //\r | |
1059 | if (!Found) {\r | |
1060 | return EFI_UNSUPPORTED;\r | |
1061 | }\r | |
1062 | \r | |
1063 | //\r | |
1064 | // Determine the size of the Unicode String Table by looking for a NULL Language entry\r | |
1065 | //\r | |
1066 | NumberOfEntries = 0;\r | |
1067 | if (*UnicodeStringTable != NULL) {\r | |
1068 | OldUnicodeStringTable = *UnicodeStringTable;\r | |
1069 | while (OldUnicodeStringTable->Language != NULL) {\r | |
1070 | LanguageString = OldUnicodeStringTable->Language;\r | |
1071 | \r | |
42eedea9 | 1072 | while (*LanguageString != 0) {\r |
dd51a993 | 1073 | for (Index = 0; LanguageString[Index] != 0 && LanguageString[Index] != ';'; Index++);\r |
1074 | \r | |
1075 | if (AsciiStrnCmp (Language, LanguageString, Index) == 0) { \r | |
1076 | return EFI_ALREADY_STARTED;\r | |
1077 | }\r | |
1078 | LanguageString += Index;\r | |
1079 | for (; *LanguageString != 0 && *LanguageString == ';'; LanguageString++);\r | |
1080 | }\r | |
1081 | OldUnicodeStringTable++;\r | |
1082 | NumberOfEntries++;\r | |
1083 | }\r | |
1084 | }\r | |
1085 | \r | |
1086 | //\r | |
1087 | // Allocate space for a new Unicode String Table. It must hold the current number of\r | |
1088 | // entries, plus 1 entry for the new Unicode String, plus 1 entry for the end of table\r | |
1089 | // marker\r | |
1090 | //\r | |
1091 | NewUnicodeStringTable = AllocatePool ((NumberOfEntries + 2) * sizeof (EFI_UNICODE_STRING_TABLE));\r | |
1092 | if (NewUnicodeStringTable == NULL) {\r | |
1093 | return EFI_OUT_OF_RESOURCES;\r | |
1094 | }\r | |
1095 | \r | |
1096 | //\r | |
1097 | // If the current Unicode String Table contains any entries, then copy them to the\r | |
1098 | // newly allocated Unicode String Table.\r | |
1099 | //\r | |
1100 | if (*UnicodeStringTable != NULL) {\r | |
1101 | CopyMem (\r | |
1102 | NewUnicodeStringTable,\r | |
1103 | *UnicodeStringTable,\r | |
1104 | NumberOfEntries * sizeof (EFI_UNICODE_STRING_TABLE)\r | |
1105 | );\r | |
1106 | }\r | |
1107 | \r | |
1108 | //\r | |
1109 | // Allocate space for a copy of the Language specifier\r | |
1110 | //\r | |
1111 | NewUnicodeStringTable[NumberOfEntries].Language = AllocateCopyPool (AsciiStrSize(Language), Language);\r | |
1112 | if (NewUnicodeStringTable[NumberOfEntries].Language == NULL) {\r | |
1113 | gBS->FreePool (NewUnicodeStringTable);\r | |
1114 | return EFI_OUT_OF_RESOURCES;\r | |
1115 | }\r | |
1116 | \r | |
1117 | //\r | |
1118 | // Compute the length of the Unicode String\r | |
1119 | //\r | |
1120 | for (UnicodeStringLength = 0; UnicodeString[UnicodeStringLength] != 0; UnicodeStringLength++);\r | |
1121 | \r | |
1122 | //\r | |
1123 | // Allocate space for a copy of the Unicode String\r | |
1124 | //\r | |
1125 | NewUnicodeStringTable[NumberOfEntries].UnicodeString = AllocateCopyPool (StrSize (UnicodeString), UnicodeString);\r | |
1126 | if (NewUnicodeStringTable[NumberOfEntries].UnicodeString == NULL) {\r | |
1127 | gBS->FreePool (NewUnicodeStringTable[NumberOfEntries].Language);\r | |
1128 | gBS->FreePool (NewUnicodeStringTable);\r | |
1129 | return EFI_OUT_OF_RESOURCES;\r | |
1130 | }\r | |
1131 | \r | |
1132 | //\r | |
1133 | // Mark the end of the Unicode String Table\r | |
1134 | //\r | |
1135 | NewUnicodeStringTable[NumberOfEntries + 1].Language = NULL;\r | |
1136 | NewUnicodeStringTable[NumberOfEntries + 1].UnicodeString = NULL;\r | |
1137 | \r | |
1138 | //\r | |
1139 | // Free the old Unicode String Table\r | |
1140 | //\r | |
1141 | if (*UnicodeStringTable != NULL) {\r | |
1142 | gBS->FreePool (*UnicodeStringTable);\r | |
1143 | }\r | |
1144 | \r | |
1145 | //\r | |
1146 | // Point UnicodeStringTable at the newly allocated Unicode String Table\r | |
1147 | //\r | |
1148 | *UnicodeStringTable = NewUnicodeStringTable;\r | |
1149 | \r | |
1150 | return EFI_SUCCESS;\r | |
1151 | }\r | |
1152 | \r | |
e386b444 | 1153 | /**\r |
1154 | This function frees the table of Unicode strings in UnicodeStringTable.\r | |
1d37ab9f | 1155 | \r |
e386b444 | 1156 | If UnicodeStringTable is NULL, then EFI_SUCCESS is returned.\r |
dd51a993 | 1157 | Otherwise, each language code, and each Unicode string in the Unicode string \r |
e386b444 | 1158 | table are freed, and EFI_SUCCESS is returned.\r |
1159 | \r | |
1160 | @param UnicodeStringTable A pointer to the table of Unicode strings.\r | |
1161 | \r | |
1162 | @retval EFI_SUCCESS The Unicode string table was freed.\r | |
1163 | \r | |
1164 | **/\r | |
1165 | EFI_STATUS\r | |
1166 | EFIAPI\r | |
1167 | FreeUnicodeStringTable (\r | |
1168 | IN EFI_UNICODE_STRING_TABLE *UnicodeStringTable\r | |
1169 | )\r | |
1170 | {\r | |
1171 | UINTN Index;\r | |
1172 | \r | |
1173 | //\r | |
1174 | // If the Unicode String Table is NULL, then it is already freed\r | |
1175 | //\r | |
1176 | if (UnicodeStringTable == NULL) {\r | |
1177 | return EFI_SUCCESS;\r | |
1178 | }\r | |
1179 | \r | |
1180 | //\r | |
1181 | // Loop through the Unicode String Table until we reach the end of table marker\r | |
1182 | //\r | |
1183 | for (Index = 0; UnicodeStringTable[Index].Language != NULL; Index++) {\r | |
1184 | \r | |
1185 | //\r | |
1186 | // Free the Language string from the Unicode String Table\r | |
1187 | //\r | |
1188 | gBS->FreePool (UnicodeStringTable[Index].Language);\r | |
1189 | \r | |
1190 | //\r | |
1191 | // Free the Unicode String from the Unicode String Table\r | |
1192 | //\r | |
1193 | if (UnicodeStringTable[Index].UnicodeString != NULL) {\r | |
1194 | gBS->FreePool (UnicodeStringTable[Index].UnicodeString);\r | |
1195 | }\r | |
1196 | }\r | |
1197 | \r | |
1198 | //\r | |
1199 | // Free the Unicode String Table itself\r | |
1200 | //\r | |
1201 | gBS->FreePool (UnicodeStringTable);\r | |
1202 | \r | |
1203 | return EFI_SUCCESS;\r | |
1204 | }\r | |
1205 | \r | |
f8d18bad | 1206 | /**\r |
1207 | Determine what is the current language setting. The space reserved for Lang\r | |
1208 | must be at least RFC_3066_ENTRY_SIZE bytes;\r | |
1209 | \r | |
1210 | If Lang is NULL, then ASSERT.\r | |
1211 | \r | |
1d37ab9f | 1212 | @param Lang Pointer of system language. Lang will always be filled with a valid RFC 3066\r |
1213 | language string. If "PlatformLang" is not set in the system, the default\r | |
1214 | language specifed by PcdUefiVariableDefaultPlatformLang is returned.\r | |
f8d18bad | 1215 | \r |
1216 | @return EFI_SUCCESS If the EFI Variable with "PlatformLang" is set and return in Lang.\r | |
1217 | @return EFI_NOT_FOUND If the EFI Variable with "PlatformLang" is not set, but a valid default language is return in Lang.\r | |
1218 | \r | |
1219 | **/\r | |
1220 | EFI_STATUS\r | |
1221 | EFIAPI\r | |
1222 | GetCurrentLanguage (\r | |
1223 | OUT CHAR8 *Lang\r | |
1224 | )\r | |
1225 | {\r | |
1226 | EFI_STATUS Status;\r | |
1227 | UINTN Size;\r | |
1228 | \r | |
1229 | ASSERT (Lang != NULL);\r | |
1230 | \r | |
1231 | //\r | |
1232 | // Get current language setting\r | |
1233 | //\r | |
1234 | Size = RFC_3066_ENTRY_SIZE;\r | |
1235 | Status = gRT->GetVariable (\r | |
1236 | L"PlatformLang",\r | |
1237 | &gEfiGlobalVariableGuid,\r | |
1238 | NULL,\r | |
1239 | &Size,\r | |
1240 | Lang\r | |
1241 | );\r | |
1242 | \r | |
1243 | if (EFI_ERROR (Status)) {\r | |
1244 | AsciiStrCpy (Lang, (CHAR8 *) PcdGetPtr (PcdUefiVariableDefaultPlatformLang));\r | |
1245 | }\r | |
1246 | \r | |
1247 | return Status;\r | |
1248 | }\r | |
1249 | \r | |
1250 | \r | |
1c280088 | 1251 | \r |