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Diffstat (limited to 'CRB/CRBTse.c')
| -rw-r--r-- | CRB/CRBTse.c | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/CRB/CRBTse.c b/CRB/CRBTse.c new file mode 100644 index 0000000..db21975 --- /dev/null +++ b/CRB/CRBTse.c @@ -0,0 +1,209 @@ +//************************************************************************* +//************************************************************************* +//** ** +//** (C)Copyright 1985-2014, American Megatrends, Inc. ** +//** ** +//** All Rights Reserved. ** +//** ** +//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 ** +//** ** +//** Phone: (770)-246-8600 ** +//** ** +//************************************************************************* +//************************************************************************* +//************************************************************************* +// $Header: /Alaska/Projects/Intel/Haswell/LynxPoint_SharkBay-DT_Crb_1AQQW/CRB/CRBTse.c 1 3/17/14 2:36a Chaseliu $Revision: +// +// $Date: 3/17/14 2:36a $Log: +// +//************************************************************************* +#include "Efi.h" +#include "token.h" +#include <AmiLib.h> +#include <AmiDxeLib.h> +#include "Protocol\PciIo.h" +#include "Protocol\DevicePath.h" +#include "protocol\DriverBinding.h" +#include "protocol\BlockIo.h" +#include "Protocol\PDiskInfo.h" +#include "Protocol\PIDEController.h" +#include "Protocol\PIDEBus.h" +#include "Protocol\PAhciBus.h" +#include "Protocol\PIDEBus.h" +#include <Setup.h> + + +#define SecurityEnabledMask 0x0002 + + +EFI_RUNTIME_SERVICES *gRT; +EFI_BOOT_SERVICES *gBS; + +UINT8 Satamode=0; +UINT8 GetVariableError=0; + +// Produced Protocols + +// Consumed Protocols + +//--------------------------------------------------------------------------- +// Constant, Macro and Type Definition(s) +//--------------------------------------------------------------------------- +// Constant Definition(s) + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: GetSetupSataMode +// +// Description: Gets the sata mode before entering Setup and Store in Satamode. +// Global Variable. +// +// Input: VOID +// +// Output: VOID +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +VOID +GetSetupSataMode( ) +{ + + UINT32 SetupDataAttributes = 0; + UINTN SetupDataSize = sizeof(SETUP_DATA); + SETUP_DATA SetupData; + EFI_GUID gSetupGuid = SETUP_GUID; + EFI_STATUS Status; + + Status = gRT->GetVariable(L"Setup", &gSetupGuid, &SetupDataAttributes, + &SetupDataSize, &SetupData); + + if(EFI_ERROR(Status)){ + GetVariableError = 1; + return; + } + // + // Store the SataMode before going to setup. + // + Satamode = SetupData.SataInterfaceMode; + + return; + +} + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: IssueColdReset +// +// Description: Issues cold reset. +// +// Input: VOID +// +// Output: VOID +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +VOID +IssueColdReset( ) +{ + IoWrite8(0xcf9, 0xE); +} +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: CheckForChangeinSataMode +// +// Description: Gets the sata mode when exiting and resetting from +// setup and checks whether sata mode is changed. If changed it +// issues cold reset. Satamode(Value got before entering setup) is +// Stored in Satamode_Before_Setup. +// +// Input: VOID +// +// Output: VOID +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +VOID +CheckForChangeinSataMode( ) +{ + + UINT32 SetupDataAttributes = 0; + UINTN SetupDataSize = sizeof(SETUP_DATA); + EFI_GUID gSetupGuid = SETUP_GUID; + UINTN Count; + EFI_HANDLE *HandleBuffer = NULL; + UINT16 SecurityStatus = 0; + EFI_STATUS Status; + UINT8 i; + IDE_SECURITY_PROTOCOL *Security = NULL; + EFI_GUID gIDESecurityProtocolGuid = IDE_SECURITY_INTERFACE_GUID; + UINT8 Satamode_Before_Setup = Satamode; + + + if(GetVariableError) { + return; + } + + // + // Get the Setupdata. + // + GetSetupSataMode(); + + // + // Check for change in the satamode selection in setup.if yes, issue cold reset. + // + if( Satamode_Before_Setup != Satamode) { + // + // Check all HDD, if Password is installed in anyone of the HDD, issue cold reset. + // + Status = gBS->LocateHandleBuffer(ByProtocol, + &gIDESecurityProtocolGuid, + NULL, + &Count, + &HandleBuffer); + + if(EFI_ERROR(Status)) { + return; + } + + for(i = 0; i < Count; i++) { + + Status = gBS->HandleProtocol(HandleBuffer[i], &gIDESecurityProtocolGuid, &Security); + if(EFI_ERROR(Status)) { + return; + } + + // + // Get the security status of the device, to check whether password is installed. + // + Status = Security->ReturnSecurityStatus( Security, &SecurityStatus ); + if(EFI_ERROR(Status)) { + return; + } + + if( SecurityStatus & SecurityEnabledMask ) { + // + // Issue Cold Reset. + // + IssueColdReset(); + } + } + + gBS->FreePool(HandleBuffer); + } + + return; +} + +//************************************************************************* +//************************************************************************* +//** ** +//** (C)Copyright 1985-2014, American Megatrends, Inc. ** +//** ** +//** All Rights Reserved. ** +//** ** +//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 ** +//** ** +//** Phone: (770)-246-8600 ** +//** ** +//************************************************************************* +//************************************************************************* |