audk/OvmfPkg/Library/BasePciCapPciSegmentLib/BasePciCapPciSegmentLib.h

48 lines
1.4 KiB
C

/** @file
Plug a PciSegmentLib backend into PciCapLib, for config space access --
internal macro and type definitions.
Copyright (C) 2018, Red Hat, Inc.
This program and the accompanying materials are licensed and made available
under the terms and conditions of the BSD License which accompanies this
distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT
WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef __BASE_PCI_CAP_PCI_SEGMENT_LIB_H__
#define __BASE_PCI_CAP_PCI_SEGMENT_LIB_H__
#include <Library/DebugLib.h>
#include <Library/PciCapPciSegmentLib.h>
#define SEGMENT_DEV_SIG SIGNATURE_64 ('P', 'C', 'P', 'S', 'G', 'M', 'N', 'T')
typedef struct {
//
// Signature identifying the derived class.
//
UINT64 Signature;
//
// Members added by the derived class, specific to the use of PciSegmentLib.
//
PCI_CAP_DOMAIN MaxDomain;
UINT16 SegmentNr;
UINT8 BusNr;
UINT8 DeviceNr;
UINT8 FunctionNr;
//
// Base class.
//
PCI_CAP_DEV BaseDevice;
} SEGMENT_DEV;
#define SEGMENT_DEV_FROM_PCI_CAP_DEV(PciDevice) \
CR (PciDevice, SEGMENT_DEV, BaseDevice, SEGMENT_DEV_SIG)
#endif // __BASE_PCI_CAP_PCI_SEGMENT_LIB_H__