1 /** @file 2 FrontPage routines to handle the callbacks and browser calls 3 4 Copyright (c) 2004 - 2016, Intel Corporation. All rights reserved.<BR> 5 This program and the accompanying materials 6 are licensed and made available under the terms and conditions of the BSD License 7 which accompanies this distribution. The full text of the license may be found at 8 http://opensource.org/licenses/bsd-license.php 9 10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12 13 **/ 14 15 #include "Bds.h" 16 #include "FrontPage.h" 17 #include "Language.h" 18 #include "Hotkey.h" 19 20 BOOLEAN mModeInitialized = FALSE; 21 22 BOOLEAN gConnectAllHappened = FALSE; 23 UINTN gCallbackKey; 24 CHAR8 *mLanguageString; 25 26 // 27 // Boot video resolution and text mode. 28 // 29 UINT32 mBootHorizontalResolution = 0; 30 UINT32 mBootVerticalResolution = 0; 31 UINT32 mBootTextModeColumn = 0; 32 UINT32 mBootTextModeRow = 0; 33 // 34 // BIOS setup video resolution and text mode. 35 // 36 UINT32 mSetupTextModeColumn = 0; 37 UINT32 mSetupTextModeRow = 0; 38 UINT32 mSetupHorizontalResolution = 0; 39 UINT32 mSetupVerticalResolution = 0; 40 41 EFI_FORM_BROWSER2_PROTOCOL *gFormBrowser2; 42 43 FRONT_PAGE_CALLBACK_DATA gFrontPagePrivate = { 44 FRONT_PAGE_CALLBACK_DATA_SIGNATURE, 45 NULL, 46 NULL, 47 NULL, 48 { 49 FakeExtractConfig, 50 FakeRouteConfig, 51 FrontPageCallback 52 } 53 }; 54 55 HII_VENDOR_DEVICE_PATH mFrontPageHiiVendorDevicePath = { 56 { 57 { 58 HARDWARE_DEVICE_PATH, 59 HW_VENDOR_DP, 60 { 61 (UINT8) (sizeof (VENDOR_DEVICE_PATH)), 62 (UINT8) ((sizeof (VENDOR_DEVICE_PATH)) >> 8) 63 } 64 }, 65 FRONT_PAGE_FORMSET_GUID 66 }, 67 { 68 END_DEVICE_PATH_TYPE, 69 END_ENTIRE_DEVICE_PATH_SUBTYPE, 70 { 71 (UINT8) (END_DEVICE_PATH_LENGTH), 72 (UINT8) ((END_DEVICE_PATH_LENGTH) >> 8) 73 } 74 } 75 }; 76 77 /** 78 This function allows a caller to extract the current configuration for one 79 or more named elements from the target driver. 80 81 82 @param This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL. 83 @param Request A null-terminated Unicode string in <ConfigRequest> format. 84 @param Progress On return, points to a character in the Request string. 85 Points to the string's null terminator if request was successful. 86 Points to the most recent '&' before the first failing name/value 87 pair (or the beginning of the string if the failure is in the 88 first name/value pair) if the request was not successful. 89 @param Results A null-terminated Unicode string in <ConfigAltResp> format which 90 has all values filled in for the names in the Request string. 91 String to be allocated by the called function. 92 93 @retval EFI_SUCCESS The Results is filled with the requested values. 94 @retval EFI_OUT_OF_RESOURCES Not enough memory to store the results. 95 @retval EFI_INVALID_PARAMETER Request is illegal syntax, or unknown name. 96 @retval EFI_NOT_FOUND Routing data doesn't match any storage in this driver. 97 98 **/ 99 EFI_STATUS 100 EFIAPI 101 FakeExtractConfig ( 102 IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This, 103 IN CONST EFI_STRING Request, 104 OUT EFI_STRING *Progress, 105 OUT EFI_STRING *Results 106 ) 107 { 108 if (Progress == NULL || Results == NULL) { 109 return EFI_INVALID_PARAMETER; 110 } 111 *Progress = Request; 112 return EFI_NOT_FOUND; 113 } 114 115 /** 116 This function processes the results of changes in configuration. 117 118 119 @param This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL. 120 @param Configuration A null-terminated Unicode string in <ConfigResp> format. 121 @param Progress A pointer to a string filled in with the offset of the most 122 recent '&' before the first failing name/value pair (or the 123 beginning of the string if the failure is in the first 124 name/value pair) or the terminating NULL if all was successful. 125 126 @retval EFI_SUCCESS The Results is processed successfully. 127 @retval EFI_INVALID_PARAMETER Configuration is NULL. 128 @retval EFI_NOT_FOUND Routing data doesn't match any storage in this driver. 129 130 **/ 131 EFI_STATUS 132 EFIAPI 133 FakeRouteConfig ( 134 IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This, 135 IN CONST EFI_STRING Configuration, 136 OUT EFI_STRING *Progress 137 ) 138 { 139 if (Configuration == NULL || Progress == NULL) { 140 return EFI_INVALID_PARAMETER; 141 } 142 143 *Progress = Configuration; 144 if (!HiiIsConfigHdrMatch (Configuration, &gBootMaintFormSetGuid, mBootMaintStorageName) 145 && !HiiIsConfigHdrMatch (Configuration, &gFileExploreFormSetGuid, mFileExplorerStorageName)) { 146 return EFI_NOT_FOUND; 147 } 148 149 *Progress = Configuration + StrLen (Configuration); 150 return EFI_SUCCESS; 151 } 152 153 /** 154 This function processes the results of changes in configuration. 155 156 157 @param This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL. 158 @param Action Specifies the type of action taken by the browser. 159 @param QuestionId A unique value which is sent to the original exporting driver 160 so that it can identify the type of data to expect. 161 @param Type The type of value for the question. 162 @param Value A pointer to the data being sent to the original exporting driver. 163 @param ActionRequest On return, points to the action requested by the callback function. 164 165 @retval EFI_SUCCESS The callback successfully handled the action. 166 @retval EFI_OUT_OF_RESOURCES Not enough storage is available to hold the variable and its data. 167 @retval EFI_DEVICE_ERROR The variable could not be saved. 168 @retval EFI_UNSUPPORTED The specified Action is not supported by the callback. 169 170 **/ 171 EFI_STATUS 172 EFIAPI 173 FrontPageCallback ( 174 IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This, 175 IN EFI_BROWSER_ACTION Action, 176 IN EFI_QUESTION_ID QuestionId, 177 IN UINT8 Type, 178 IN EFI_IFR_TYPE_VALUE *Value, 179 OUT EFI_BROWSER_ACTION_REQUEST *ActionRequest 180 ) 181 { 182 CHAR8 *LangCode; 183 CHAR8 *Lang; 184 UINTN Index; 185 186 if (Action != EFI_BROWSER_ACTION_CHANGING && Action != EFI_BROWSER_ACTION_CHANGED) { 187 // 188 // All other action return unsupported. 189 // 190 return EFI_UNSUPPORTED; 191 } 192 193 gCallbackKey = QuestionId; 194 195 if (Action == EFI_BROWSER_ACTION_CHANGED) { 196 if ((Value == NULL) || (ActionRequest == NULL)) { 197 return EFI_INVALID_PARAMETER; 198 } 199 200 switch (QuestionId) { 201 case FRONT_PAGE_KEY_CONTINUE: 202 // 203 // This is the continue - clear the screen and return an error to get out of FrontPage loop 204 // 205 *ActionRequest = EFI_BROWSER_ACTION_REQUEST_EXIT; 206 break; 207 208 case FRONT_PAGE_KEY_LANGUAGE: 209 // 210 // Allocate working buffer for RFC 4646 language in supported LanguageString. 211 // 212 Lang = AllocatePool (AsciiStrSize (mLanguageString)); 213 ASSERT (Lang != NULL); 214 215 Index = 0; 216 LangCode = mLanguageString; 217 while (*LangCode != 0) { 218 GetNextLanguage (&LangCode, Lang); 219 220 if (Index == Value->u8) { 221 break; 222 } 223 224 Index++; 225 } 226 227 if (Index == Value->u8) { 228 BdsDxeSetVariableAndReportStatusCodeOnError ( 229 L"PlatformLang", 230 &gEfiGlobalVariableGuid, 231 EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS, 232 AsciiStrSize (Lang), 233 Lang 234 ); 235 } else { 236 ASSERT (FALSE); 237 } 238 239 *ActionRequest = EFI_BROWSER_ACTION_REQUEST_EXIT; 240 241 FreePool (Lang); 242 break; 243 244 default: 245 break; 246 } 247 } else if (Action == EFI_BROWSER_ACTION_CHANGING) { 248 if (Value == NULL) { 249 return EFI_INVALID_PARAMETER; 250 } 251 252 // 253 // The first 4 entries in the Front Page are to be GUARANTEED to remain constant so IHV's can 254 // describe to their customers in documentation how to find their setup information (namely 255 // under the device manager and specific buckets) 256 // 257 switch (QuestionId) { 258 case FRONT_PAGE_KEY_BOOT_MANAGER: 259 // 260 // Boot Manager 261 // 262 break; 263 264 case FRONT_PAGE_KEY_DEVICE_MANAGER: 265 // 266 // Device Manager 267 // 268 break; 269 270 case FRONT_PAGE_KEY_BOOT_MAINTAIN: 271 // 272 // Boot Maintenance Manager 273 // 274 break; 275 276 default: 277 gCallbackKey = 0; 278 break; 279 } 280 } 281 282 return EFI_SUCCESS; 283 } 284 285 /** 286 Initialize HII information for the FrontPage 287 288 289 @param InitializeHiiData TRUE if HII elements need to be initialized. 290 291 @retval EFI_SUCCESS The operation is successful. 292 @retval EFI_DEVICE_ERROR If the dynamic opcode creation failed. 293 294 **/ 295 EFI_STATUS 296 InitializeFrontPage ( 297 IN BOOLEAN InitializeHiiData 298 ) 299 { 300 EFI_STATUS Status; 301 CHAR8 *LangCode; 302 CHAR8 *Lang; 303 UINTN LangSize; 304 CHAR8 *CurrentLang; 305 UINTN OptionCount; 306 CHAR16 *StringBuffer; 307 EFI_HII_HANDLE HiiHandle; 308 VOID *OptionsOpCodeHandle; 309 VOID *StartOpCodeHandle; 310 VOID *EndOpCodeHandle; 311 EFI_IFR_GUID_LABEL *StartLabel; 312 EFI_IFR_GUID_LABEL *EndLabel; 313 EFI_HII_STRING_PROTOCOL *HiiString; 314 UINTN StringSize; 315 316 Lang = NULL; 317 StringBuffer = NULL; 318 319 if (InitializeHiiData) { 320 // 321 // Initialize the Device Manager 322 // 323 InitializeDeviceManager (); 324 325 // 326 // Initialize the Device Manager 327 // 328 InitializeBootManager (); 329 330 gCallbackKey = 0; 331 332 // 333 // Locate Hii relative protocols 334 // 335 Status = gBS->LocateProtocol (&gEfiFormBrowser2ProtocolGuid, NULL, (VOID **) &gFormBrowser2); 336 if (EFI_ERROR (Status)) { 337 return Status; 338 } 339 340 // 341 // Install Device Path Protocol and Config Access protocol to driver handle 342 // 343 Status = gBS->InstallMultipleProtocolInterfaces ( 344 &gFrontPagePrivate.DriverHandle, 345 &gEfiDevicePathProtocolGuid, 346 &mFrontPageHiiVendorDevicePath, 347 &gEfiHiiConfigAccessProtocolGuid, 348 &gFrontPagePrivate.ConfigAccess, 349 NULL 350 ); 351 ASSERT_EFI_ERROR (Status); 352 353 // 354 // Publish our HII data 355 // 356 gFrontPagePrivate.HiiHandle = HiiAddPackages ( 357 &gFrontPageFormSetGuid, 358 gFrontPagePrivate.DriverHandle, 359 FrontPageVfrBin, 360 BdsDxeStrings, 361 NULL 362 ); 363 if (gFrontPagePrivate.HiiHandle == NULL) { 364 return EFI_OUT_OF_RESOURCES; 365 } 366 } 367 368 369 // 370 // Init OpCode Handle and Allocate space for creation of UpdateData Buffer 371 // 372 StartOpCodeHandle = HiiAllocateOpCodeHandle (); 373 ASSERT (StartOpCodeHandle != NULL); 374 375 EndOpCodeHandle = HiiAllocateOpCodeHandle (); 376 ASSERT (EndOpCodeHandle != NULL); 377 378 OptionsOpCodeHandle = HiiAllocateOpCodeHandle (); 379 ASSERT (OptionsOpCodeHandle != NULL); 380 // 381 // Create Hii Extend Label OpCode as the start opcode 382 // 383 StartLabel = (EFI_IFR_GUID_LABEL *) HiiCreateGuidOpCode (StartOpCodeHandle, &gEfiIfrTianoGuid, NULL, sizeof (EFI_IFR_GUID_LABEL)); 384 StartLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL; 385 StartLabel->Number = LABEL_SELECT_LANGUAGE; 386 387 // 388 // Create Hii Extend Label OpCode as the end opcode 389 // 390 EndLabel = (EFI_IFR_GUID_LABEL *) HiiCreateGuidOpCode (EndOpCodeHandle, &gEfiIfrTianoGuid, NULL, sizeof (EFI_IFR_GUID_LABEL)); 391 EndLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL; 392 EndLabel->Number = LABEL_END; 393 394 // 395 // Collect the languages from what our current Language support is based on our VFR 396 // 397 HiiHandle = gFrontPagePrivate.HiiHandle; 398 399 GetEfiGlobalVariable2 (L"PlatformLang", (VOID**)&CurrentLang, NULL); 400 401 // 402 // Get Support language list from variable. 403 // 404 if (mLanguageString == NULL){ 405 GetEfiGlobalVariable2 (L"PlatformLangCodes", (VOID**)&mLanguageString, NULL); 406 if (mLanguageString == NULL) { 407 mLanguageString = AllocateCopyPool ( 408 AsciiStrSize ((CHAR8 *) PcdGetPtr (PcdUefiVariableDefaultPlatformLangCodes)), 409 (CHAR8 *) PcdGetPtr (PcdUefiVariableDefaultPlatformLangCodes) 410 ); 411 ASSERT (mLanguageString != NULL); 412 } 413 } 414 415 if (gFrontPagePrivate.LanguageToken == NULL) { 416 // 417 // Count the language list number. 418 // 419 LangCode = mLanguageString; 420 Lang = AllocatePool (AsciiStrSize (mLanguageString)); 421 ASSERT (Lang != NULL); 422 OptionCount = 0; 423 while (*LangCode != 0) { 424 GetNextLanguage (&LangCode, Lang); 425 OptionCount ++; 426 } 427 428 // 429 // Allocate extra 1 as the end tag. 430 // 431 gFrontPagePrivate.LanguageToken = AllocateZeroPool ((OptionCount + 1) * sizeof (EFI_STRING_ID)); 432 ASSERT (gFrontPagePrivate.LanguageToken != NULL); 433 434 Status = gBS->LocateProtocol (&gEfiHiiStringProtocolGuid, NULL, (VOID **) &HiiString); 435 ASSERT_EFI_ERROR (Status); 436 437 LangCode = mLanguageString; 438 OptionCount = 0; 439 while (*LangCode != 0) { 440 GetNextLanguage (&LangCode, Lang); 441 442 StringSize = 0; 443 Status = HiiString->GetString (HiiString, Lang, HiiHandle, PRINTABLE_LANGUAGE_NAME_STRING_ID, StringBuffer, &StringSize, NULL); 444 if (Status == EFI_BUFFER_TOO_SMALL) { 445 StringBuffer = AllocateZeroPool (StringSize); 446 ASSERT (StringBuffer != NULL); 447 Status = HiiString->GetString (HiiString, Lang, HiiHandle, PRINTABLE_LANGUAGE_NAME_STRING_ID, StringBuffer, &StringSize, NULL); 448 ASSERT_EFI_ERROR (Status); 449 } 450 451 if (EFI_ERROR (Status)) { 452 LangSize = AsciiStrSize (Lang); 453 StringBuffer = AllocatePool (LangSize * sizeof (CHAR16)); 454 ASSERT (StringBuffer != NULL); 455 AsciiStrToUnicodeStrS (Lang, StringBuffer, LangSize); 456 } 457 458 ASSERT (StringBuffer != NULL); 459 gFrontPagePrivate.LanguageToken[OptionCount] = HiiSetString (HiiHandle, 0, StringBuffer, NULL); 460 FreePool (StringBuffer); 461 462 OptionCount++; 463 } 464 } 465 466 ASSERT (gFrontPagePrivate.LanguageToken != NULL); 467 LangCode = mLanguageString; 468 OptionCount = 0; 469 if (Lang == NULL) { 470 Lang = AllocatePool (AsciiStrSize (mLanguageString)); 471 ASSERT (Lang != NULL); 472 } 473 while (*LangCode != 0) { 474 GetNextLanguage (&LangCode, Lang); 475 476 if (CurrentLang != NULL && AsciiStrCmp (Lang, CurrentLang) == 0) { 477 HiiCreateOneOfOptionOpCode ( 478 OptionsOpCodeHandle, 479 gFrontPagePrivate.LanguageToken[OptionCount], 480 EFI_IFR_OPTION_DEFAULT, 481 EFI_IFR_NUMERIC_SIZE_1, 482 (UINT8) OptionCount 483 ); 484 } else { 485 HiiCreateOneOfOptionOpCode ( 486 OptionsOpCodeHandle, 487 gFrontPagePrivate.LanguageToken[OptionCount], 488 0, 489 EFI_IFR_NUMERIC_SIZE_1, 490 (UINT8) OptionCount 491 ); 492 } 493 494 OptionCount++; 495 } 496 497 if (CurrentLang != NULL) { 498 FreePool (CurrentLang); 499 } 500 FreePool (Lang); 501 502 HiiCreateOneOfOpCode ( 503 StartOpCodeHandle, 504 FRONT_PAGE_KEY_LANGUAGE, 505 0, 506 0, 507 STRING_TOKEN (STR_LANGUAGE_SELECT), 508 STRING_TOKEN (STR_LANGUAGE_SELECT_HELP), 509 EFI_IFR_FLAG_CALLBACK, 510 EFI_IFR_NUMERIC_SIZE_1, 511 OptionsOpCodeHandle, 512 NULL 513 ); 514 515 Status = HiiUpdateForm ( 516 HiiHandle, 517 &gFrontPageFormSetGuid, 518 FRONT_PAGE_FORM_ID, 519 StartOpCodeHandle, // LABEL_SELECT_LANGUAGE 520 EndOpCodeHandle // LABEL_END 521 ); 522 523 HiiFreeOpCodeHandle (StartOpCodeHandle); 524 HiiFreeOpCodeHandle (EndOpCodeHandle); 525 HiiFreeOpCodeHandle (OptionsOpCodeHandle); 526 return Status; 527 } 528 529 /** 530 Call the browser and display the front page 531 532 @return Status code that will be returned by 533 EFI_FORM_BROWSER2_PROTOCOL.SendForm (). 534 535 **/ 536 EFI_STATUS 537 CallFrontPage ( 538 VOID 539 ) 540 { 541 EFI_STATUS Status; 542 EFI_BROWSER_ACTION_REQUEST ActionRequest; 543 544 // 545 // Begin waiting for USER INPUT 546 // 547 REPORT_STATUS_CODE ( 548 EFI_PROGRESS_CODE, 549 (EFI_SOFTWARE_DXE_BS_DRIVER | EFI_SW_PC_INPUT_WAIT) 550 ); 551 552 ActionRequest = EFI_BROWSER_ACTION_REQUEST_NONE; 553 Status = gFormBrowser2->SendForm ( 554 gFormBrowser2, 555 &gFrontPagePrivate.HiiHandle, 556 1, 557 &gFrontPageFormSetGuid, 558 0, 559 NULL, 560 &ActionRequest 561 ); 562 // 563 // Check whether user change any option setting which needs a reset to be effective 564 // 565 if (ActionRequest == EFI_BROWSER_ACTION_REQUEST_RESET) { 566 EnableResetRequired (); 567 } 568 569 return Status; 570 } 571 572 /** 573 Acquire the string associated with the ProducerGuid and return it. 574 575 576 @param ProducerGuid The Guid to search the HII database for 577 @param Token The token value of the string to extract 578 @param String The string that is extracted 579 580 @retval EFI_SUCCESS The function returns EFI_SUCCESS always. 581 582 **/ 583 EFI_STATUS 584 GetProducerString ( 585 IN EFI_GUID *ProducerGuid, 586 IN EFI_STRING_ID Token, 587 OUT CHAR16 **String 588 ) 589 { 590 EFI_STRING TmpString; 591 592 TmpString = HiiGetPackageString (ProducerGuid, Token, NULL); 593 if (TmpString == NULL) { 594 *String = GetStringById (STRING_TOKEN (STR_MISSING_STRING)); 595 } else { 596 *String = TmpString; 597 } 598 599 return EFI_SUCCESS; 600 } 601 602 /** 603 Convert Processor Frequency Data to a string. 604 605 @param ProcessorFrequency The frequency data to process 606 @param Base10Exponent The exponent based on 10 607 @param String The string that is created 608 609 **/ 610 VOID 611 ConvertProcessorToString ( 612 IN UINT16 ProcessorFrequency, 613 IN UINT16 Base10Exponent, 614 OUT CHAR16 **String 615 ) 616 { 617 CHAR16 *StringBuffer; 618 UINTN Index; 619 UINT32 FreqMhz; 620 621 if (Base10Exponent >= 6) { 622 FreqMhz = ProcessorFrequency; 623 for (Index = 0; Index < (UINTN) (Base10Exponent - 6); Index++) { 624 FreqMhz *= 10; 625 } 626 } else { 627 FreqMhz = 0; 628 } 629 630 StringBuffer = AllocateZeroPool (0x20); 631 ASSERT (StringBuffer != NULL); 632 Index = UnicodeValueToString (StringBuffer, LEFT_JUSTIFY, FreqMhz / 1000, 3); 633 StrCatS (StringBuffer, 0x20 / sizeof (CHAR16), L"."); 634 UnicodeValueToString (StringBuffer + Index + 1, PREFIX_ZERO, (FreqMhz % 1000) / 10, 2); 635 StrCatS (StringBuffer, 0x20 / sizeof (CHAR16), L" GHz"); 636 *String = (CHAR16 *) StringBuffer; 637 return ; 638 } 639 640 641 /** 642 Convert Memory Size to a string. 643 644 @param MemorySize The size of the memory to process 645 @param String The string that is created 646 647 **/ 648 VOID 649 ConvertMemorySizeToString ( 650 IN UINT32 MemorySize, 651 OUT CHAR16 **String 652 ) 653 { 654 CHAR16 *StringBuffer; 655 656 StringBuffer = AllocateZeroPool (0x20); 657 ASSERT (StringBuffer != NULL); 658 UnicodeValueToString (StringBuffer, LEFT_JUSTIFY, MemorySize, 6); 659 StrCatS (StringBuffer, 0x20 / sizeof (CHAR16), L" MB RAM"); 660 661 *String = (CHAR16 *) StringBuffer; 662 663 return ; 664 } 665 666 /** 667 668 Acquire the string associated with the Index from smbios structure and return it. 669 The caller is responsible for free the string buffer. 670 671 @param OptionalStrStart The start position to search the string 672 @param Index The index of the string to extract 673 @param String The string that is extracted 674 675 @retval EFI_SUCCESS The function returns EFI_SUCCESS always. 676 677 **/ 678 EFI_STATUS 679 GetOptionalStringByIndex ( 680 IN CHAR8 *OptionalStrStart, 681 IN UINT8 Index, 682 OUT CHAR16 **String 683 ) 684 { 685 UINTN StrSize; 686 687 if (Index == 0) { 688 *String = AllocateZeroPool (sizeof (CHAR16)); 689 return EFI_SUCCESS; 690 } 691 692 StrSize = 0; 693 do { 694 Index--; 695 OptionalStrStart += StrSize; 696 StrSize = AsciiStrSize (OptionalStrStart); 697 } while (OptionalStrStart[StrSize] != 0 && Index != 0); 698 699 if ((Index != 0) || (StrSize == 1)) { 700 // 701 // Meet the end of strings set but Index is non-zero, or 702 // Find an empty string 703 // 704 *String = GetStringById (STRING_TOKEN (STR_MISSING_STRING)); 705 } else { 706 *String = AllocatePool (StrSize * sizeof (CHAR16)); 707 AsciiStrToUnicodeStrS (OptionalStrStart, *String, StrSize); 708 } 709 710 return EFI_SUCCESS; 711 } 712 713 714 /** 715 Update the banner information for the Front Page based on DataHub information. 716 717 **/ 718 VOID 719 UpdateFrontPageStrings ( 720 VOID 721 ) 722 { 723 UINT8 StrIndex; 724 CHAR16 *NewString; 725 EFI_STATUS Status; 726 EFI_STRING_ID TokenToUpdate; 727 EFI_SMBIOS_HANDLE SmbiosHandle; 728 EFI_SMBIOS_PROTOCOL *Smbios; 729 SMBIOS_TABLE_TYPE0 *Type0Record; 730 SMBIOS_TABLE_TYPE1 *Type1Record; 731 SMBIOS_TABLE_TYPE4 *Type4Record; 732 SMBIOS_TABLE_TYPE19 *Type19Record; 733 EFI_SMBIOS_TABLE_HEADER *Record; 734 UINT64 InstalledMemory; 735 736 InstalledMemory = 0; 737 738 // 739 // Update Front Page strings 740 // 741 Status = gBS->LocateProtocol ( 742 &gEfiSmbiosProtocolGuid, 743 NULL, 744 (VOID **) &Smbios 745 ); 746 if (!EFI_ERROR (Status)) { 747 SmbiosHandle = SMBIOS_HANDLE_PI_RESERVED; 748 Status = Smbios->GetNext (Smbios, &SmbiosHandle, NULL, &Record, NULL); 749 while (!EFI_ERROR(Status)) { 750 if (Record->Type == SMBIOS_TYPE_BIOS_INFORMATION) { 751 Type0Record = (SMBIOS_TABLE_TYPE0 *) Record; 752 StrIndex = Type0Record->BiosVersion; 753 GetOptionalStringByIndex ((CHAR8*)((UINT8*)Type0Record + Type0Record->Hdr.Length), StrIndex, &NewString); 754 TokenToUpdate = STRING_TOKEN (STR_FRONT_PAGE_BIOS_VERSION); 755 HiiSetString (gFrontPagePrivate.HiiHandle, TokenToUpdate, NewString, NULL); 756 FreePool (NewString); 757 } 758 759 if (Record->Type == SMBIOS_TYPE_SYSTEM_INFORMATION) { 760 Type1Record = (SMBIOS_TABLE_TYPE1 *) Record; 761 StrIndex = Type1Record->ProductName; 762 GetOptionalStringByIndex ((CHAR8*)((UINT8*)Type1Record + Type1Record->Hdr.Length), StrIndex, &NewString); 763 TokenToUpdate = STRING_TOKEN (STR_FRONT_PAGE_COMPUTER_MODEL); 764 HiiSetString (gFrontPagePrivate.HiiHandle, TokenToUpdate, NewString, NULL); 765 FreePool (NewString); 766 } 767 768 if (Record->Type == SMBIOS_TYPE_PROCESSOR_INFORMATION) { 769 Type4Record = (SMBIOS_TABLE_TYPE4 *) Record; 770 StrIndex = Type4Record->ProcessorVersion; 771 GetOptionalStringByIndex ((CHAR8*)((UINT8*)Type4Record + Type4Record->Hdr.Length), StrIndex, &NewString); 772 TokenToUpdate = STRING_TOKEN (STR_FRONT_PAGE_CPU_MODEL); 773 HiiSetString (gFrontPagePrivate.HiiHandle, TokenToUpdate, NewString, NULL); 774 FreePool (NewString); 775 } 776 777 if (Record->Type == SMBIOS_TYPE_PROCESSOR_INFORMATION) { 778 Type4Record = (SMBIOS_TABLE_TYPE4 *) Record; 779 ConvertProcessorToString(Type4Record->CurrentSpeed, 6, &NewString); 780 TokenToUpdate = STRING_TOKEN (STR_FRONT_PAGE_CPU_SPEED); 781 HiiSetString (gFrontPagePrivate.HiiHandle, TokenToUpdate, NewString, NULL); 782 FreePool (NewString); 783 } 784 785 if ( Record->Type == SMBIOS_TYPE_MEMORY_ARRAY_MAPPED_ADDRESS ) { 786 Type19Record = (SMBIOS_TABLE_TYPE19 *) Record; 787 if (Type19Record->StartingAddress != 0xFFFFFFFF ) { 788 InstalledMemory += RShiftU64(Type19Record->EndingAddress - 789 Type19Record->StartingAddress + 1, 10); 790 } else { 791 InstalledMemory += RShiftU64(Type19Record->ExtendedEndingAddress - 792 Type19Record->ExtendedStartingAddress + 1, 20); 793 } 794 } 795 796 Status = Smbios->GetNext (Smbios, &SmbiosHandle, NULL, &Record, NULL); 797 } 798 799 // now update the total installed RAM size 800 ConvertMemorySizeToString ((UINT32)InstalledMemory, &NewString ); 801 TokenToUpdate = STRING_TOKEN (STR_FRONT_PAGE_MEMORY_SIZE); 802 HiiSetString (gFrontPagePrivate.HiiHandle, TokenToUpdate, NewString, NULL); 803 FreePool (NewString); 804 } 805 806 return ; 807 } 808 809 810 /** 811 Function waits for a given event to fire, or for an optional timeout to expire. 812 813 @param Event The event to wait for 814 @param Timeout An optional timeout value in 100 ns units. 815 816 @retval EFI_SUCCESS Event fired before Timeout expired. 817 @retval EFI_TIME_OUT Timout expired before Event fired.. 818 819 **/ 820 EFI_STATUS 821 WaitForSingleEvent ( 822 IN EFI_EVENT Event, 823 IN UINT64 Timeout OPTIONAL 824 ) 825 { 826 UINTN Index; 827 EFI_STATUS Status; 828 EFI_EVENT TimerEvent; 829 EFI_EVENT WaitList[2]; 830 831 if (Timeout != 0) { 832 // 833 // Create a timer event 834 // 835 Status = gBS->CreateEvent (EVT_TIMER, 0, NULL, NULL, &TimerEvent); 836 if (!EFI_ERROR (Status)) { 837 // 838 // Set the timer event 839 // 840 gBS->SetTimer ( 841 TimerEvent, 842 TimerRelative, 843 Timeout 844 ); 845 846 // 847 // Wait for the original event or the timer 848 // 849 WaitList[0] = Event; 850 WaitList[1] = TimerEvent; 851 Status = gBS->WaitForEvent (2, WaitList, &Index); 852 gBS->CloseEvent (TimerEvent); 853 854 // 855 // If the timer expired, change the return to timed out 856 // 857 if (!EFI_ERROR (Status) && Index == 1) { 858 Status = EFI_TIMEOUT; 859 } 860 } 861 } else { 862 // 863 // No timeout... just wait on the event 864 // 865 Status = gBS->WaitForEvent (1, &Event, &Index); 866 ASSERT (!EFI_ERROR (Status)); 867 ASSERT (Index == 0); 868 } 869 870 return Status; 871 } 872 873 /** 874 Function show progress bar to wait for user input. 875 876 877 @param TimeoutDefault The fault time out value before the system continue to boot. 878 879 @retval EFI_SUCCESS User pressed some key except "Enter" 880 @retval EFI_TIME_OUT Timeout expired or user press "Enter" 881 882 **/ 883 EFI_STATUS 884 ShowProgress ( 885 IN UINT16 TimeoutDefault 886 ) 887 { 888 CHAR16 *TmpStr; 889 UINT16 TimeoutRemain; 890 EFI_STATUS Status; 891 EFI_INPUT_KEY Key; 892 EFI_GRAPHICS_OUTPUT_BLT_PIXEL Foreground; 893 EFI_GRAPHICS_OUTPUT_BLT_PIXEL Background; 894 EFI_GRAPHICS_OUTPUT_BLT_PIXEL Color; 895 896 if (TimeoutDefault != 0) { 897 DEBUG ((EFI_D_INFO, "\n\nStart showing progress bar... Press any key to stop it! ...Zzz....\n")); 898 899 SetMem (&Foreground, sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL), 0xff); 900 SetMem (&Background, sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL), 0x0); 901 SetMem (&Color, sizeof (EFI_GRAPHICS_OUTPUT_BLT_PIXEL), 0xff); 902 903 TmpStr = GetStringById (STRING_TOKEN (STR_START_BOOT_OPTION)); 904 905 if (!FeaturePcdGet(PcdBootlogoOnlyEnable)) { 906 // 907 // Clear the progress status bar first 908 // 909 if (TmpStr != NULL) { 910 PlatformBdsShowProgress (Foreground, Background, TmpStr, Color, 0, 0); 911 } 912 } 913 914 915 TimeoutRemain = TimeoutDefault; 916 while (TimeoutRemain != 0) { 917 DEBUG ((EFI_D_INFO, "Showing progress bar...Remaining %d second!\n", TimeoutRemain)); 918 919 Status = WaitForSingleEvent (gST->ConIn->WaitForKey, ONE_SECOND); 920 if (Status != EFI_TIMEOUT) { 921 break; 922 } 923 TimeoutRemain--; 924 925 if (!FeaturePcdGet(PcdBootlogoOnlyEnable)) { 926 // 927 // Show progress 928 // 929 if (TmpStr != NULL) { 930 PlatformBdsShowProgress ( 931 Foreground, 932 Background, 933 TmpStr, 934 Color, 935 ((TimeoutDefault - TimeoutRemain) * 100 / TimeoutDefault), 936 0 937 ); 938 } 939 } 940 } 941 942 if (TmpStr != NULL) { 943 gBS->FreePool (TmpStr); 944 } 945 946 // 947 // Timeout expired 948 // 949 if (TimeoutRemain == 0) { 950 return EFI_TIMEOUT; 951 } 952 } 953 954 // 955 // User pressed some key 956 // 957 if (!PcdGetBool (PcdConInConnectOnDemand)) { 958 Status = gST->ConIn->ReadKeyStroke (gST->ConIn, &Key); 959 if (EFI_ERROR (Status)) { 960 return Status; 961 } 962 963 if (Key.UnicodeChar == CHAR_CARRIAGE_RETURN) { 964 // 965 // User pressed enter, equivalent to select "continue" 966 // 967 return EFI_TIMEOUT; 968 } 969 } 970 971 return EFI_SUCCESS; 972 } 973 974 /** 975 This function is the main entry of the platform setup entry. 976 The function will present the main menu of the system setup, 977 this is the platform reference part and can be customize. 978 979 980 @param TimeoutDefault The fault time out value before the system 981 continue to boot. 982 @param ConnectAllHappened The indicater to check if the connect all have 983 already happened. 984 985 **/ 986 VOID 987 PlatformBdsEnterFrontPage ( 988 IN UINT16 TimeoutDefault, 989 IN BOOLEAN ConnectAllHappened 990 ) 991 { 992 EFI_STATUS Status; 993 EFI_STATUS StatusHotkey; 994 EFI_BOOT_LOGO_PROTOCOL *BootLogo; 995 EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput; 996 EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *SimpleTextOut; 997 UINTN BootTextColumn; 998 UINTN BootTextRow; 999 UINT64 OsIndication; 1000 UINTN DataSize; 1001 EFI_INPUT_KEY Key; 1002 1003 GraphicsOutput = NULL; 1004 SimpleTextOut = NULL; 1005 1006 PERF_START (NULL, "BdsTimeOut", "BDS", 0); 1007 // 1008 // Indicate if we need connect all in the platform setup 1009 // 1010 if (ConnectAllHappened) { 1011 gConnectAllHappened = TRUE; 1012 } 1013 1014 if (!mModeInitialized) { 1015 // 1016 // After the console is ready, get current video resolution 1017 // and text mode before launching setup at first time. 1018 // 1019 Status = gBS->HandleProtocol ( 1020 gST->ConsoleOutHandle, 1021 &gEfiGraphicsOutputProtocolGuid, 1022 (VOID**)&GraphicsOutput 1023 ); 1024 if (EFI_ERROR (Status)) { 1025 GraphicsOutput = NULL; 1026 } 1027 1028 Status = gBS->HandleProtocol ( 1029 gST->ConsoleOutHandle, 1030 &gEfiSimpleTextOutProtocolGuid, 1031 (VOID**)&SimpleTextOut 1032 ); 1033 if (EFI_ERROR (Status)) { 1034 SimpleTextOut = NULL; 1035 } 1036 1037 if (GraphicsOutput != NULL) { 1038 // 1039 // Get current video resolution and text mode. 1040 // 1041 mBootHorizontalResolution = GraphicsOutput->Mode->Info->HorizontalResolution; 1042 mBootVerticalResolution = GraphicsOutput->Mode->Info->VerticalResolution; 1043 } 1044 1045 if (SimpleTextOut != NULL) { 1046 Status = SimpleTextOut->QueryMode ( 1047 SimpleTextOut, 1048 SimpleTextOut->Mode->Mode, 1049 &BootTextColumn, 1050 &BootTextRow 1051 ); 1052 mBootTextModeColumn = (UINT32)BootTextColumn; 1053 mBootTextModeRow = (UINT32)BootTextRow; 1054 } 1055 1056 // 1057 // Get user defined text mode for setup. 1058 // 1059 mSetupHorizontalResolution = PcdGet32 (PcdSetupVideoHorizontalResolution); 1060 mSetupVerticalResolution = PcdGet32 (PcdSetupVideoVerticalResolution); 1061 mSetupTextModeColumn = PcdGet32 (PcdSetupConOutColumn); 1062 mSetupTextModeRow = PcdGet32 (PcdSetupConOutRow); 1063 1064 mModeInitialized = TRUE; 1065 } 1066 1067 1068 // 1069 // goto FrontPage directly when EFI_OS_INDICATIONS_BOOT_TO_FW_UI is set 1070 // 1071 OsIndication = 0; 1072 DataSize = sizeof(UINT64); 1073 Status = gRT->GetVariable ( 1074 L"OsIndications", 1075 &gEfiGlobalVariableGuid, 1076 NULL, 1077 &DataSize, 1078 &OsIndication 1079 ); 1080 1081 // 1082 // goto FrontPage directly when EFI_OS_INDICATIONS_BOOT_TO_FW_UI is set. Skip HotkeyBoot 1083 // 1084 if (!EFI_ERROR(Status) && ((OsIndication & EFI_OS_INDICATIONS_BOOT_TO_FW_UI) != 0)) { 1085 // 1086 // Clear EFI_OS_INDICATIONS_BOOT_TO_FW_UI to acknowledge OS 1087 // 1088 OsIndication &= ~((UINT64)EFI_OS_INDICATIONS_BOOT_TO_FW_UI); 1089 Status = gRT->SetVariable ( 1090 L"OsIndications", 1091 &gEfiGlobalVariableGuid, 1092 EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE, 1093 sizeof(UINT64), 1094 &OsIndication 1095 ); 1096 // 1097 // Changing the content without increasing its size with current variable implementation shouldn't fail. 1098 // 1099 ASSERT_EFI_ERROR (Status); 1100 1101 // 1102 // Follow generic rule, Call ReadKeyStroke to connect ConIn before enter UI 1103 // 1104 if (PcdGetBool (PcdConInConnectOnDemand)) { 1105 gST->ConIn->ReadKeyStroke(gST->ConIn, &Key); 1106 } 1107 1108 // 1109 // Ensure screen is clear when switch Console from Graphics mode to Text mode 1110 // 1111 gST->ConOut->EnableCursor (gST->ConOut, TRUE); 1112 gST->ConOut->ClearScreen (gST->ConOut); 1113 1114 } else { 1115 1116 HotkeyBoot (); 1117 if (TimeoutDefault != 0xffff) { 1118 Status = ShowProgress (TimeoutDefault); 1119 StatusHotkey = HotkeyBoot (); 1120 1121 if (!FeaturePcdGet(PcdBootlogoOnlyEnable) || !EFI_ERROR(Status) || !EFI_ERROR(StatusHotkey)){ 1122 // 1123 // Ensure screen is clear when switch Console from Graphics mode to Text mode 1124 // Skip it in normal boot 1125 // 1126 gST->ConOut->EnableCursor (gST->ConOut, TRUE); 1127 gST->ConOut->ClearScreen (gST->ConOut); 1128 } 1129 1130 if (EFI_ERROR (Status)) { 1131 // 1132 // Timeout or user press enter to continue 1133 // 1134 goto Exit; 1135 } 1136 } 1137 } 1138 1139 // 1140 // Boot Logo is corrupted, report it using Boot Logo protocol. 1141 // 1142 Status = gBS->LocateProtocol (&gEfiBootLogoProtocolGuid, NULL, (VOID **) &BootLogo); 1143 if (!EFI_ERROR (Status) && (BootLogo != NULL)) { 1144 BootLogo->SetBootLogo (BootLogo, NULL, 0, 0, 0, 0); 1145 } 1146 1147 // 1148 // Install BM HiiPackages. 1149 // Keep BootMaint HiiPackage, so that it can be covered by global setting. 1150 // 1151 InitBMPackage (); 1152 1153 Status = EFI_SUCCESS; 1154 do { 1155 // 1156 // Set proper video resolution and text mode for setup 1157 // 1158 BdsSetConsoleMode (TRUE); 1159 1160 InitializeFrontPage (FALSE); 1161 1162 // 1163 // Update Front Page strings 1164 // 1165 UpdateFrontPageStrings (); 1166 1167 gCallbackKey = 0; 1168 CallFrontPage (); 1169 1170 // 1171 // If gCallbackKey is greater than 1 and less or equal to 5, 1172 // it will launch configuration utilities. 1173 // 2 = set language 1174 // 3 = boot manager 1175 // 4 = device manager 1176 // 5 = boot maintenance manager 1177 // 1178 if (gCallbackKey != 0) { 1179 REPORT_STATUS_CODE ( 1180 EFI_PROGRESS_CODE, 1181 (EFI_SOFTWARE_DXE_BS_DRIVER | EFI_SW_PC_USER_SETUP) 1182 ); 1183 } 1184 // 1185 // Based on the key that was set, we can determine what to do 1186 // 1187 switch (gCallbackKey) { 1188 // 1189 // The first 4 entries in the Front Page are to be GUARANTEED to remain constant so IHV's can 1190 // describe to their customers in documentation how to find their setup information (namely 1191 // under the device manager and specific buckets) 1192 // 1193 // These entries consist of the Continue, Select language, Boot Manager, and Device Manager 1194 // 1195 case FRONT_PAGE_KEY_CONTINUE: 1196 // 1197 // User hit continue 1198 // 1199 break; 1200 1201 case FRONT_PAGE_KEY_LANGUAGE: 1202 // 1203 // User made a language setting change - display front page again 1204 // 1205 break; 1206 1207 case FRONT_PAGE_KEY_BOOT_MANAGER: 1208 // 1209 // Remove the installed BootMaint HiiPackages when exit. 1210 // 1211 FreeBMPackage (); 1212 1213 // 1214 // User chose to run the Boot Manager 1215 // 1216 CallBootManager (); 1217 1218 // 1219 // Reinstall BootMaint HiiPackages after exiting from Boot Manager. 1220 // 1221 InitBMPackage (); 1222 break; 1223 1224 case FRONT_PAGE_KEY_DEVICE_MANAGER: 1225 // 1226 // Display the Device Manager 1227 // 1228 do { 1229 CallDeviceManager (); 1230 } while (gCallbackKey == FRONT_PAGE_KEY_DEVICE_MANAGER); 1231 break; 1232 1233 case FRONT_PAGE_KEY_BOOT_MAINTAIN: 1234 // 1235 // Display the Boot Maintenance Manager 1236 // 1237 BdsStartBootMaint (); 1238 break; 1239 } 1240 1241 } while ((Status == EFI_SUCCESS) && (gCallbackKey != FRONT_PAGE_KEY_CONTINUE)); 1242 1243 if (mLanguageString != NULL) { 1244 FreePool (mLanguageString); 1245 mLanguageString = NULL; 1246 } 1247 // 1248 //Will leave browser, check any reset required change is applied? if yes, reset system 1249 // 1250 SetupResetReminder (); 1251 1252 // 1253 // Remove the installed BootMaint HiiPackages when exit. 1254 // 1255 FreeBMPackage (); 1256 1257 Exit: 1258 // 1259 // Automatically load current entry 1260 // Note: The following lines of code only execute when Auto boot 1261 // takes affect 1262 // 1263 PERF_END (NULL, "BdsTimeOut", "BDS", 0); 1264 } 1265 1266 /** 1267 This function will change video resolution and text mode 1268 according to defined setup mode or defined boot mode 1269 1270 @param IsSetupMode Indicate mode is changed to setup mode or boot mode. 1271 1272 @retval EFI_SUCCESS Mode is changed successfully. 1273 @retval Others Mode failed to be changed. 1274 1275 **/ 1276 EFI_STATUS 1277 EFIAPI 1278 BdsSetConsoleMode ( 1279 BOOLEAN IsSetupMode 1280 ) 1281 { 1282 EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput; 1283 EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *SimpleTextOut; 1284 UINTN SizeOfInfo; 1285 EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Info; 1286 UINT32 MaxGopMode; 1287 UINT32 MaxTextMode; 1288 UINT32 ModeNumber; 1289 UINT32 NewHorizontalResolution; 1290 UINT32 NewVerticalResolution; 1291 UINT32 NewColumns; 1292 UINT32 NewRows; 1293 UINTN HandleCount; 1294 EFI_HANDLE *HandleBuffer; 1295 EFI_STATUS Status; 1296 UINTN Index; 1297 UINTN CurrentColumn; 1298 UINTN CurrentRow; 1299 1300 MaxGopMode = 0; 1301 MaxTextMode = 0; 1302 1303 // 1304 // Get current video resolution and text mode 1305 // 1306 Status = gBS->HandleProtocol ( 1307 gST->ConsoleOutHandle, 1308 &gEfiGraphicsOutputProtocolGuid, 1309 (VOID**)&GraphicsOutput 1310 ); 1311 if (EFI_ERROR (Status)) { 1312 GraphicsOutput = NULL; 1313 } 1314 1315 Status = gBS->HandleProtocol ( 1316 gST->ConsoleOutHandle, 1317 &gEfiSimpleTextOutProtocolGuid, 1318 (VOID**)&SimpleTextOut 1319 ); 1320 if (EFI_ERROR (Status)) { 1321 SimpleTextOut = NULL; 1322 } 1323 1324 if ((GraphicsOutput == NULL) || (SimpleTextOut == NULL)) { 1325 return EFI_UNSUPPORTED; 1326 } 1327 1328 if (IsSetupMode) { 1329 // 1330 // The required resolution and text mode is setup mode. 1331 // 1332 NewHorizontalResolution = mSetupHorizontalResolution; 1333 NewVerticalResolution = mSetupVerticalResolution; 1334 NewColumns = mSetupTextModeColumn; 1335 NewRows = mSetupTextModeRow; 1336 } else { 1337 // 1338 // The required resolution and text mode is boot mode. 1339 // 1340 NewHorizontalResolution = mBootHorizontalResolution; 1341 NewVerticalResolution = mBootVerticalResolution; 1342 NewColumns = mBootTextModeColumn; 1343 NewRows = mBootTextModeRow; 1344 } 1345 1346 if (GraphicsOutput != NULL) { 1347 MaxGopMode = GraphicsOutput->Mode->MaxMode; 1348 } 1349 1350 if (SimpleTextOut != NULL) { 1351 MaxTextMode = SimpleTextOut->Mode->MaxMode; 1352 } 1353 1354 // 1355 // 1. If current video resolution is same with required video resolution, 1356 // video resolution need not be changed. 1357 // 1.1. If current text mode is same with required text mode, text mode need not be changed. 1358 // 1.2. If current text mode is different from required text mode, text mode need be changed. 1359 // 2. If current video resolution is different from required video resolution, we need restart whole console drivers. 1360 // 1361 for (ModeNumber = 0; ModeNumber < MaxGopMode; ModeNumber++) { 1362 Status = GraphicsOutput->QueryMode ( 1363 GraphicsOutput, 1364 ModeNumber, 1365 &SizeOfInfo, 1366 &Info 1367 ); 1368 if (!EFI_ERROR (Status)) { 1369 if ((Info->HorizontalResolution == NewHorizontalResolution) && 1370 (Info->VerticalResolution == NewVerticalResolution)) { 1371 if ((GraphicsOutput->Mode->Info->HorizontalResolution == NewHorizontalResolution) && 1372 (GraphicsOutput->Mode->Info->VerticalResolution == NewVerticalResolution)) { 1373 // 1374 // Current resolution is same with required resolution, check if text mode need be set 1375 // 1376 Status = SimpleTextOut->QueryMode (SimpleTextOut, SimpleTextOut->Mode->Mode, &CurrentColumn, &CurrentRow); 1377 ASSERT_EFI_ERROR (Status); 1378 if (CurrentColumn == NewColumns && CurrentRow == NewRows) { 1379 // 1380 // If current text mode is same with required text mode. Do nothing 1381 // 1382 FreePool (Info); 1383 return EFI_SUCCESS; 1384 } else { 1385 // 1386 // If current text mode is different from required text mode. Set new video mode 1387 // 1388 for (Index = 0; Index < MaxTextMode; Index++) { 1389 Status = SimpleTextOut->QueryMode (SimpleTextOut, Index, &CurrentColumn, &CurrentRow); 1390 if (!EFI_ERROR(Status)) { 1391 if ((CurrentColumn == NewColumns) && (CurrentRow == NewRows)) { 1392 // 1393 // Required text mode is supported, set it. 1394 // 1395 Status = SimpleTextOut->SetMode (SimpleTextOut, Index); 1396 ASSERT_EFI_ERROR (Status); 1397 // 1398 // Update text mode PCD. 1399 // 1400 Status = PcdSet32S (PcdConOutColumn, mSetupTextModeColumn); 1401 ASSERT_EFI_ERROR (Status); 1402 Status = PcdSet32S (PcdConOutRow, mSetupTextModeRow); 1403 ASSERT_EFI_ERROR (Status); 1404 FreePool (Info); 1405 return EFI_SUCCESS; 1406 } 1407 } 1408 } 1409 if (Index == MaxTextMode) { 1410 // 1411 // If required text mode is not supported, return error. 1412 // 1413 FreePool (Info); 1414 return EFI_UNSUPPORTED; 1415 } 1416 } 1417 } else { 1418 // 1419 // If current video resolution is not same with the new one, set new video resolution. 1420 // In this case, the driver which produces simple text out need be restarted. 1421 // 1422 Status = GraphicsOutput->SetMode (GraphicsOutput, ModeNumber); 1423 if (!EFI_ERROR (Status)) { 1424 FreePool (Info); 1425 break; 1426 } 1427 } 1428 } 1429 FreePool (Info); 1430 } 1431 } 1432 1433 if (ModeNumber == MaxGopMode) { 1434 // 1435 // If the resolution is not supported, return error. 1436 // 1437 return EFI_UNSUPPORTED; 1438 } 1439 1440 // 1441 // Set PCD to Inform GraphicsConsole to change video resolution. 1442 // Set PCD to Inform Consplitter to change text mode. 1443 // 1444 Status = PcdSet32S (PcdVideoHorizontalResolution, NewHorizontalResolution); 1445 ASSERT_EFI_ERROR (Status); 1446 Status = PcdSet32S (PcdVideoVerticalResolution, NewVerticalResolution); 1447 ASSERT_EFI_ERROR (Status); 1448 Status = PcdSet32S (PcdConOutColumn, NewColumns); 1449 ASSERT_EFI_ERROR (Status); 1450 Status = PcdSet32S (PcdConOutRow, NewRows); 1451 ASSERT_EFI_ERROR (Status); 1452 1453 1454 // 1455 // Video mode is changed, so restart graphics console driver and higher level driver. 1456 // Reconnect graphics console driver and higher level driver. 1457 // Locate all the handles with GOP protocol and reconnect it. 1458 // 1459 Status = gBS->LocateHandleBuffer ( 1460 ByProtocol, 1461 &gEfiSimpleTextOutProtocolGuid, 1462 NULL, 1463 &HandleCount, 1464 &HandleBuffer 1465 ); 1466 if (!EFI_ERROR (Status)) { 1467 for (Index = 0; Index < HandleCount; Index++) { 1468 gBS->DisconnectController (HandleBuffer[Index], NULL, NULL); 1469 } 1470 for (Index = 0; Index < HandleCount; Index++) { 1471 gBS->ConnectController (HandleBuffer[Index], NULL, NULL, TRUE); 1472 } 1473 if (HandleBuffer != NULL) { 1474 FreePool (HandleBuffer); 1475 } 1476 } 1477 1478 return EFI_SUCCESS; 1479 } 1480 1481
