diff options
Diffstat (limited to 'Core/EM/CSM/CsmBsp.c')
| -rw-r--r-- | Core/EM/CSM/CsmBsp.c | 48 |
1 files changed, 45 insertions, 3 deletions
diff --git a/Core/EM/CSM/CsmBsp.c b/Core/EM/CSM/CsmBsp.c index 9bc04c8..b3aeae6 100644 --- a/Core/EM/CSM/CsmBsp.c +++ b/Core/EM/CSM/CsmBsp.c @@ -13,11 +13,11 @@ //********************************************************************** //**************************************************************************** -// $Header: /Alaska/SOURCE/Modules/CSM/Generic/Core/CsmBsp.c 39 8/06/14 4:40p Fasihm $ +// $Header: /Alaska/SOURCE/Modules/CSM/Generic/Core/CsmBsp.c 40 9/08/15 2:25p Olegi $ // -// $Revision: 39 $ +// $Revision: 40 $ // -// $Date: 8/06/14 4:40p $ +// $Date: 9/08/15 2:25p $ // //**************************************************************************** @@ -94,6 +94,10 @@ typedef EFI_STATUS (CSM_ENABLE_OEM_PCI_SIBLINGS)(EFI_PCI_IO_PROTOCOL *PciIo); extern CSM_ENABLE_OEM_PCI_SIBLINGS CSM_ENABLE_OEM_PCI_SIBLINGS_FUNCTIONS EndOfEnableOemPciSiblingsFunctions; CSM_ENABLE_OEM_PCI_SIBLINGS *CsmEnableOemPciSiblingsFunctions[] = { CSM_ENABLE_OEM_PCI_SIBLINGS_FUNCTIONS NULL }; +typedef EFI_STATUS (AMI_CSM_16_CALL_COMPANION)(AMI_CSM_THUNK_DATA*, BOOLEAN); +extern AMI_CSM_16_CALL_COMPANION CSM_16_CALL_COMPANION_FUNCTIONS EndOfCsm16CompanionFunctions; +AMI_CSM_16_CALL_COMPANION *Csm16CallCompanionFunctions[] = { CSM_16_CALL_COMPANION_FUNCTIONS NULL }; + typedef EFI_STATUS (CSM_GET_ROUTING_TABLE)( IN EFI_LEGACY_BIOS_PLATFORM_PROTOCOL *This, OUT VOID **RoutingTable, @@ -782,6 +786,44 @@ EnableOemPciSiblings( return Status; } +/** + This function is called from FarCall86() and Int86() before and after executing + 16-bit code. OEM code can be hooked up in SDL to the parent eLink + "AMI_CSM_16_CALL_COMPANION_FUNCTIONS" and execute before and after 16-bit code. + + @param IsFarCall BOOLEAN to indicate the 16-bit FAR CALL (TRUE) or INT (FALSE) + @param TargetLocation UINT32 address of FAR CALL or INT number + @param Priority BOOLEAN function is called before (TRUE) or after (FALSE) 16-bit code + + @retval EFI_UNSUPPORTED Function is not implemented + @retval EFI_SUCCESS All OEM functions have been executed + + @note + For the function calls the address is passed in segment:offset format; upper 16 bits + is the segment, lower 16 bits is the offset of the function entry point. + @note + After 16-bit code execution (Priority == FALSE) TargetLocation is not relevant; value is ignored. + +**/ + +EFI_STATUS +Csm16CallCompanion( + AMI_CSM_THUNK_DATA *ThunkData, + BOOLEAN Priority +) +{ + EFI_STATUS Status = EFI_UNSUPPORTED; + UINTN i; + AMI_CSM_THUNK_DATA ThunkDataCopy = *ThunkData; + + for(i = 0; Csm16CallCompanionFunctions[i] != NULL; i++) + { + Status = EFI_SUCCESS; + Csm16CallCompanionFunctions[i](&ThunkDataCopy, Priority); + } + return Status; +} + //<AMI_PHDR_START> //---------------------------------------------------------------------------- |