1/** @file 2PciHostBridge driver module, part of QNC module. 3 4Provides the basic interfaces to abstract a PCI Host Bridge Resource Allocation. 5 6Copyright (c) 2013-2015 Intel Corporation. 7 8This program and the accompanying materials 9are licensed and made available under the terms and conditions of the BSD License 10which accompanies this distribution. The full text of the license may be found at 11http://opensource.org/licenses/bsd-license.php 12 13THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 14WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 15 16**/ 17#include "CommonHeader.h" 18#include "QNCInit.h" 19 20UINT32 mS3ParameterRootPortDownstream = 0; 21EFI_QNC_S3_DISPATCH_ITEM mS3DispatchItem = { 22 QncS3ItemTypeInitPcieRootPortDownstream, 23 &mS3ParameterRootPortDownstream 24 }; 25 26EFI_STATUS 27QncInitRootPorts ( 28 ) 29/*++ 30 31Routine Description: 32 33 Perform Initialization of the Downstream Root Ports 34 35Arguments: 36 37Returns: 38 39 EFI_SUCCESS The function completed successfully 40 41--*/ 42{ 43 EFI_STATUS Status; 44 EFI_QNC_S3_SUPPORT_PROTOCOL *QncS3Support; 45 VOID *Context; 46 VOID *S3DispatchEntryPoint; 47 48 Status = PciExpressInit (); 49 ASSERT_EFI_ERROR (Status); 50 51 // 52 // Get the QNC S3 Support Protocol 53 // 54 Status = gBS->LocateProtocol ( 55 &gEfiQncS3SupportProtocolGuid, 56 NULL, 57 (VOID **) &QncS3Support 58 ); 59 ASSERT_EFI_ERROR (Status); 60 if (EFI_ERROR (Status)) { 61 return Status; 62 } 63 64 // 65 // Get the QNC S3 Support Protocol 66 // 67 Status = QncS3Support->SetDispatchItem ( 68 QncS3Support, 69 &mS3DispatchItem, 70 &S3DispatchEntryPoint, 71 &Context 72 ); 73 ASSERT_EFI_ERROR (Status); 74 75 // 76 // Save the script dispatch item in the Boot Script 77 // 78 Status = S3BootScriptSaveDispatch2 (S3DispatchEntryPoint, Context); 79 ASSERT_EFI_ERROR (Status); 80 81 return Status; 82} 83