diff options
Diffstat (limited to 'Core/EM/CsmOptOut/CsmOptOutSetup.c')
| -rw-r--r-- | Core/EM/CsmOptOut/CsmOptOutSetup.c | 430 |
1 files changed, 430 insertions, 0 deletions
diff --git a/Core/EM/CsmOptOut/CsmOptOutSetup.c b/Core/EM/CsmOptOut/CsmOptOutSetup.c new file mode 100644 index 0000000..f61e77b --- /dev/null +++ b/Core/EM/CsmOptOut/CsmOptOutSetup.c @@ -0,0 +1,430 @@ +//********************************************************************** +//********************************************************************** +//** ** +//** (C)Copyright 1985-2012, American Megatrends, Inc. ** +//** ** +//** All Rights Reserved. ** +//** ** +//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 ** +//** ** +//** Phone: (770)-246-8600 ** +//** ** +//********************************************************************** +//********************************************************************** + +///********************************************************************** +// $Header: /Alaska/SOURCE/Modules/CsmOptOut/CsmOptOutSetup.c 10 7/08/13 4:17p Artems $ +// +// $Revision: 10 $ +// +// $Date: 7/08/13 4:17p $ +//********************************************************************** +// Revision History +// ---------------- +// $Log: /Alaska/SOURCE/Modules/CsmOptOut/CsmOptOutSetup.c $ +// +// 10 7/08/13 4:17p Artems +// [TAG] EIP N/A +// [Category] Bug Fix +// [Severity] Important +// [Symptom] Build error +// [RootCause] Unreferenced local variable +// [Solution] Removed variable +// [Files] CsmOptOutSetup.c +// +// 9 7/02/13 5:06p Artems +// [TAG] EIP125900 +// [Category] Improvement +// [Description] Funciton IsUefiGop assumed, that GOP protocol installed +// on the same handle +// where PciIO is installed, which is not always the case. +// Updated to handle different cases +// [Files] CsmOptOutSetup.c +// +// 8 2/26/13 1:47p Artems +// [TAG] EIP111710 +// [Category] Improvement +// [Description] Added multilanguage support for error message box +// [Files] CsmOptOutSetup.c +// +// 7 1/22/13 4:29p Artems +// [TAG] EIP111710 +// [Category] Improvement +// [Description] Replace MessageBox message and title with string tokens +// to allow +// different language usage +// [Files] CsmOptOut.mak CsmOptOut.uni CsmOptOutSetup.c +// +// 6 9/27/12 7:14p Artems +// [TAG] EIP N/A +// [Category] Improvement +// [Description] Secureboot enable callbacks moved to Secure Boot module +// [Files] CsmOptOut.sdl CsmOptOutSetup.c +// +// 5 9/11/12 5:26p Artems +// [TAG] EIP N/A +// [Category] Improvement +// [Description] Changed dependency on secureboot pkg module revision +// [Files] CsmOptOutSetup.c +// +// 4 9/04/12 3:15p Artems +// [TAG] EIP98995 +// [Category] Improvement +// [Description] Use EFI_UNSUPPORTED status in Browser callback to +// discard control value instead of FORM_DISCARD +// [Files] CsmOptOutSetup.c +// +// 3 8/29/12 2:26p Artems +// [TAG] EIP98995 +// [Category] Improvement +// [Description] When enable secure boot disable CSM but preserve CSM +// optout options setting, +// so once secure boot is disabled they can be restored +// [Files] CsmOptOut.sd, CsmOptOut.sdl, CsmOptOutSetup.c +// CsmOptOutRuntime.c +// +// 2 6/20/12 6:10p Artems +// [TAG] EIP83692 +// [Category] Improvement +// [Description] CSM OptOut setup page grayed out if secure boot is +// enabled +// CSM OptOut PlatformOverride protocol modified to fix SCT bugs +// Removed support for Launch CSM "Auto" option +// +// [Files] CsmOptOut.c CsmOptOut.mak CsmOptOut.sd CsmOptOut.sdl +// CsmOptOut.uni CsmOptOutRuntime.c CsmOptOutSetup.c +// +// 1 5/21/12 4:34p Artems +// [TAG] EIP N/A +// [Category] New Feature +// [Description] Prevent user from disable CSM in setup if active video +// is legacy +// [Files] CsmOptOutSetup.c CsmOptOut.sdl CsmOptOut.mak +// CsmOptOut.sdl +// +// +//********************************************************************** +//<AMI_FHDR_START> +// +// Name: CsmOptOutSetup.c +// +// Description: Implementation of interactive callback to "Launch CSM" setup control +// +//<AMI_FHDR_END> +//********************************************************************** + +#include <AmiDxeLib.h> +#include <Setup.h> +#include <SetupStrTokens.h> +#include <AmiLoadCsmPolicy.h> +#include <Protocol/GraphicsOutput.h> +#include <Protocol/DevicePath.h> +#include <Protocol/PciIo.h> +#include <Protocol/AmiPostMgr.h> +#include <Protocol/HiiString.h> + +static EFI_GUID EfiVariableGuid = EFI_GLOBAL_VARIABLE; +static EFI_GUID AmiPostManagerProtocolGuid = AMI_POST_MANAGER_PROTOCOL_GUID; +static AMI_POST_MANAGER_PROTOCOL* AmiPostMgr = NULL; + +extern const char *DefaultLanguageCode; + + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// +// Procedure: IsUefiGop +// +// Description: This function checks wheter passed controller is managed by UEFI GOP driver +// +// Input: +// IN EFI_HANDLE pci_hnd - handle of the controller +// +// Output: +// 0 - controller managed by legacy driver +// 1 - controller managed by UEFI driver +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +BOOLEAN IsUefiGop( + IN EFI_HANDLE pci_hnd +) +{ + EFI_STATUS Status; + EFI_OPEN_PROTOCOL_INFORMATION_ENTRY *ent; + UINTN n_ent; + UINTN i; + VOID *p; + static EFI_GUID AmiCsmThunkProtocolGuid = AMI_CSM_THUNK_PROTOCOL_GUID; + BOOLEAN Result = TRUE; + + Status = pBS->OpenProtocolInformation(pci_hnd, &gEfiPciIoProtocolGuid, &ent, &n_ent); + if(EFI_ERROR(Status)) + return FALSE; + + for(i = 0; i < n_ent; i++) { + if(!(ent[i].Attributes & EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER)) + continue; + + Status = pBS->HandleProtocol(ent[i].AgentHandle, &AmiCsmThunkProtocolGuid, &p); + if(!EFI_ERROR(Status)) { + Result = FALSE; + break; + } + } + pBS->FreePool(ent); + + return Result; +} + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// +// Procedure: IsLegacyVideo +// +// Description: This function checks if active video is Legacy or UEFI +// +// Input: +// None +// +// Output: +// 0 - active video is UEFI +// 1 - active vide is Legacy +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +BOOLEAN IsLegacyVideo( + VOID +) +{ + EFI_STATUS Status; + EFI_HANDLE *hnd; + EFI_HANDLE pci_hnd; + UINTN n_hnd; + UINTN i; + EFI_DEVICE_PATH_PROTOCOL *dp; + + Status = pBS->LocateHandleBuffer(ByProtocol, &gEfiGraphicsOutputProtocolGuid, NULL, &n_hnd, &hnd); + if(EFI_ERROR(Status)) + return FALSE; + + for(i = 0; i < n_hnd; i++) { + Status = pBS->HandleProtocol(hnd[i], &gEfiDevicePathProtocolGuid, &dp); + if(EFI_ERROR(Status)) + continue; + Status = pBS->LocateDevicePath(&gEfiPciIoProtocolGuid, &dp, &pci_hnd); + if(EFI_ERROR(Status)) + continue; + + if(IsUefiGop(pci_hnd)) + return FALSE; + } + pBS->FreePool(hnd); + return TRUE; +} + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: GetCurrentLanguage +// +// Description: This function retrieves current platform language and stores it in +// passed pointer +// +// Input: CHAR8 ** Lang - pointer to where to store current language +// BOOLEAN *Allocated - flag if memory was allocated for language +// +// Output: None +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +VOID GetCurrentLanguage( + CHAR8 ** Language, + BOOLEAN *Allocated +) +{ + EFI_STATUS Status; + UINTN Size = 0; + + *Allocated = FALSE; + + Status = pRS->GetVariable(L"PlatformLang", &EfiVariableGuid, NULL, &Size, *Language); + if(Status == EFI_BUFFER_TOO_SMALL) { + Status = pBS->AllocatePool(EfiBootServicesData, Size, Language); + if(!EFI_ERROR(Status)) { + Status = pRS->GetVariable(L"PlatformLang", &EfiVariableGuid, NULL, &Size, *Language); + *Allocated = TRUE; + } + } + if(EFI_ERROR(Status)) + *Language = (CHAR8 *)DefaultLanguageCode; +} + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: GetLangString +// +// Description: This function reads a string from HII database with different languages +// +// Input: IN EFI_HII_HANDLE HiiHandle - Efi Hii Handle +// IN STRING_REF Token - String Token +// IN OUT UINTN *StringSize - Length of the StringBuffer in bytes +// OUT EFI_STRING *StringBuffer - The pointer to the buffer to receive +// the characters in the string. +// +// Output: EFI_STATUS - Depending on result +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +EFI_STATUS GetLangString( + IN EFI_HII_HANDLE HiiHandle, + IN EFI_STRING_ID Token, + IN OUT UINTN *StringSize, + OUT EFI_STRING StringBuffer +) +{ + EFI_STATUS Status; + EFI_HII_STRING_PROTOCOL *HiiString; + CHAR8 *Language; + BOOLEAN Allocated; + + Status = pBS->LocateProtocol(&gEfiHiiStringProtocolGuid, NULL, &HiiString); + if(EFI_ERROR(Status)) + return Status; + + GetCurrentLanguage(&Language, &Allocated); + + Status = HiiString->GetString(HiiString, Language, HiiHandle, Token, StringBuffer, StringSize, NULL); + if(Status == EFI_INVALID_LANGUAGE) { + if(Allocated) + Status = HiiString->GetString(HiiString, (CHAR8 *)DefaultLanguageCode, HiiHandle, Token, StringBuffer, StringSize, NULL); + } + + if(Status == EFI_INVALID_LANGUAGE) + Status = HiiString->GetString(HiiString, LANGUAGE_CODE_ENGLISH, HiiHandle, Token, StringBuffer, StringSize, NULL); + + if(Allocated) + pBS->FreePool(Language); + + return Status; +} + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: GetUniString +// +// Description: This function reads a string from HII database +// +// Input: IN EFI_HII_HANDLE HiiHandle - Efi Hii Handle +// IN STRING_REF Token - String Token +// IN OUT UINTN *StringSize - Length of the StringBuffer in bytes +// OUT EFI_STRING *StringBuffer - The pointer to the buffer to receive +// the characters in the string. +// +// Output: EFI_STATUS - Depending on result +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +EFI_STATUS GetUniString( + IN EFI_HII_HANDLE HiiHandle, + IN EFI_STRING_ID Token, + IN OUT UINTN *StringSize, + OUT EFI_STRING *StringBuffer +) +{ + EFI_STATUS Status; + + if (*StringBuffer == NULL) + *StringSize = 0; //reset size if buffer is NULL + + + Status = GetLangString(HiiHandle, Token, StringSize, *StringBuffer); + if(Status == EFI_BUFFER_TOO_SMALL) { + Status = pBS->AllocatePool(EfiBootServicesData, *StringSize, StringBuffer); + if(!EFI_ERROR(Status)) + Status = GetLangString(HiiHandle, Token, StringSize, *StringBuffer); + } + + if(EFI_ERROR(Status)) + *StringBuffer = NULL; + + return Status; +} + + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// +// Procedure: CsmOptOutLaunchCallback +// +// Description: This function checks if CSM can be disabled in current boot +// +// Input: +// IN EFI_HII_HANDLE HiiHandle - HII handle of formset +// IN UINT16 Class - class of formset +// IN UINT16 SubClass - subclass of formset +// IN UINT16 Key - Id of setup control +// +// Output: +// EF_SUCCESS +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +EFI_STATUS CsmOptOutLaunchCallback( + IN EFI_HII_HANDLE HiiHandle, + IN UINT16 Class, + IN UINT16 SubClass, + IN UINT16 Key +) +{ + EFI_STATUS Status; + UINT8 MsgKey; + EFI_BROWSER_ACTION_REQUEST *rq; + EFI_STRING Title = NULL; + EFI_STRING Message = NULL; + UINTN Size; + + + CALLBACK_PARAMETERS *Callback = NULL; + + Callback = GetCallbackParameters(); + if(!Callback || Callback->Action != EFI_BROWSER_ACTION_CHANGING) + return EFI_UNSUPPORTED; + + rq = Callback->ActionRequest; + *rq = EFI_BROWSER_ACTION_REQUEST_NONE; + + if(Callback->Value->u8 == 0) { + /* trying to disable CSM */ + if(IsLegacyVideo()) { + if(AmiPostMgr == NULL) + Status = pBS->LocateProtocol(&AmiPostManagerProtocolGuid, NULL, &AmiPostMgr); + if(EFI_ERROR(Status)) + return Status; + GetUniString(HiiHandle, STRING_TOKEN(STR_LEGACY_VIDEO_MSGBOX_TITLE), &Size, &Title); + GetUniString(HiiHandle, STRING_TOKEN(STR_LEGACY_VIDEO_MSGBOX_MESSAGE), &Size, &Message); + + Status = AmiPostMgr->DisplayMsgBox((Title == NULL)? L" Warning " : Title, + (Message == NULL)? L"Video is in Legacy mode. Select Video policy UEFI only, reboot and try again" : Message, + MSGBOX_TYPE_OK, + &MsgKey); + return EFI_UNSUPPORTED; + } + } + return EFI_SUCCESS; +} + + + +//********************************************************************** +//********************************************************************** +//** ** +//** (C)Copyright 1985-2012, American Megatrends, Inc. ** +//** ** +//** All Rights Reserved. ** +//** ** +//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 ** +//** ** +//** Phone: (770)-246-8600 ** +//** ** +//********************************************************************** +//********************************************************************** |