55 lines
2.0 KiB
C
55 lines
2.0 KiB
C
/** @file
|
|
This file offers interface to get OemInt15VbiosFunctionHook array and do additional
|
|
VbiosHookCallBack function that are list on OemInt15VbiosFunctionHook array.
|
|
;******************************************************************************
|
|
;* Copyright (c) 2014, Insyde Software Corporation. All Rights Reserved.
|
|
;*
|
|
;* You may not reproduce, distribute, publish, display, perform, modify, adapt,
|
|
;* transmit, broadcast, present, recite, release, license or otherwise exploit
|
|
;* any part of this publication in any form, by any means, without the prior
|
|
;* written permission of Insyde Software Corporation.
|
|
;*
|
|
;******************************************************************************
|
|
*/
|
|
|
|
#include <Library/SmmOemSvcChipsetLib.h>
|
|
/**
|
|
This function provides an interface to do additional VbiosHookCallBack function that are list on
|
|
OemInt15VbiosFunctionHook array.
|
|
|
|
@param[in] Int15FunNum Int15 function number.
|
|
@param[in out] CpuRegs The structure containing CPU Registers (AX, BX, CX, DX etc.).
|
|
@param[in] Context Context.
|
|
|
|
@retval EFI_UNSUPPORTED Returns unsupported by default.
|
|
@retval EFI_MEDIA_CHANGED Alter the Configuration Parameter or hook code.
|
|
@retval EFI_SUCCESS The function performs the same operation as caller.
|
|
The caller will skip the specified behavior and assuming
|
|
that it has been handled completely by this function.
|
|
*/
|
|
EFI_STATUS
|
|
OemSvcVbiosHookCallBack (
|
|
IN UINT32 Int15FunNum,
|
|
IN OUT EFI_IA32_REGISTER_SET *CpuRegs,
|
|
IN VOID *Context
|
|
)
|
|
{
|
|
/*++
|
|
Todo:
|
|
Add project specific code in here.
|
|
--*/
|
|
#if 0 // Sample Implementation
|
|
switch (Int15FunNum) {
|
|
case INT15_HOOK_OOOO :
|
|
CpuRegs->X.CX |= 0;
|
|
CpuRegs->X.AX &= ~(0xffff);
|
|
CpuRegs->X.AX |= 0x005F; // Function supported and successful
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
#endif
|
|
return EFI_UNSUPPORTED;
|
|
}
|