EFI_STATUS
QNCSmmCoreUnRegister (
IN QNC_SMM_GENERIC_PROTOCOL *This,
IN EFI_HANDLE DispatchHandle
)
/*++
Routine Description:
Arguments:
Returns:
--*/
// GC_TODO: This - add argument and description to function comment
// GC_TODO: DispatchHandle - add argument and description to function comment
// GC_TODO: EFI_INVALID_PARAMETER - add return value to function comment
// GC_TODO: EFI_INVALID_PARAMETER - add return value to function comment
// GC_TODO: EFI_SUCCESS - add return value to function comment
{
BOOLEAN SafeToDisable;
DATABASE_RECORD *RecordToDelete;
DATABASE_RECORD *RecordInDb;
LIST_ENTRY *LinkInDb;
if (DispatchHandle == NULL) {
return EFI_INVALID_PARAMETER;
}
if (BASE_CR (DispatchHandle, DATABASE_RECORD, Link)->Signature != DATABASE_RECORD_SIGNATURE) {
return EFI_INVALID_PARAMETER;
}
RecordToDelete = DATABASE_RECORD_FROM_LINK (DispatchHandle);
RemoveEntryList (&RecordToDelete->Link);
RecordToDelete->Signature = 0;
//
// See if we can disable the source, reserved for future use since this might
// not be the only criteria to disable
//
SafeToDisable = TRUE;
LinkInDb = GetFirstNode (&mPrivateData.CallbackDataBase);
while(!IsNull (&mPrivateData.CallbackDataBase, LinkInDb)) {
RecordInDb = DATABASE_RECORD_FROM_LINK (LinkInDb);
if (CompareEnables (&RecordToDelete->SrcDesc, &RecordInDb->SrcDesc)) {
SafeToDisable = FALSE;
break;
}
LinkInDb = GetNextNode (&mPrivateData.CallbackDataBase, &RecordInDb->Link);
}
if (SafeToDisable) {
QNCSmmDisableSource( &RecordToDelete->SrcDesc );
}
FreePool (RecordToDelete);
return EFI_SUCCESS;
}
/**
Compare 2 SMM source descriptors, based on Enable settings and Status settings of them.
@param[in] Src1 Pointer to the PCH SMI source description table 1
@param[in] Src2 Pointer to the PCH SMI source description table 2
@retval TRUE The 2 SMM source descriptors are identical.
@retval FALSE The 2 SMM source descriptors are not identical.
**/
BOOLEAN
CompareSources (
CONST IN PCH_SMM_SOURCE_DESC *Src1,
CONST IN PCH_SMM_SOURCE_DESC *Src2
)
{
return (BOOLEAN) (CompareEnables (Src1, Src2) && CompareStatuses (Src1, Src2));
}
