OvmfPkg/Library/BasePciCapPciSegmentLib/BasePciCapPciSegmentLib.h

   1 /** @file
   2   Plug a PciSegmentLib backend into PciCapLib, for config space access --
   3   internal macro and type definitions.
   4
   5   Copyright (C) 2018, Red Hat, Inc.
   6
   7   This program and the accompanying materials are licensed and made available
   8   under the terms and conditions of the BSD License which accompanies this
   9   distribution.  The full text of the license may be found at
  10   http://opensource.org/licenses/bsd-license.php
  11
  12   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT
  13   WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  14 **/
  15
  16 #ifndef __BASE_PCI_CAP_PCI_SEGMENT_LIB_H__
  17 #define __BASE_PCI_CAP_PCI_SEGMENT_LIB_H__
  18
  19 #include <Library/DebugLib.h>
  20
  21 #include <Library/PciCapPciSegmentLib.h>
  22
  23 #define SEGMENT_DEV_SIG SIGNATURE_64 ('P', 'C', 'P', 'S', 'G', 'M', 'N', 'T')
  24
  25 typedef struct {
  26   //
  27   // Signature identifying the derived class.
  28   //
  29   UINT64 Signature;
  30   //
  31   // Members added by the derived class, specific to the use of PciSegmentLib.
  32   //
  33   PCI_CAP_DOMAIN MaxDomain;
  34   UINT16         SegmentNr;
  35   UINT8          BusNr;
  36   UINT8          DeviceNr;
  37   UINT8          FunctionNr;
  38   //
  39   // Base class.
  40   //
  41   PCI_CAP_DEV BaseDevice;
  42 } SEGMENT_DEV;
  43
  44 #define SEGMENT_DEV_FROM_PCI_CAP_DEV(PciDevice) \
  45   CR (PciDevice, SEGMENT_DEV, BaseDevice, SEGMENT_DEV_SIG)
  46
  47 #endif // __BASE_PCI_CAP_PCI_SEGMENT_LIB_H__