OvmfPkg/Library/UefiPciCapPciIoLib/UefiPciCapPciIoLib.h

   1 /** @file
   2   Plug an EFI_PCI_IO_PROTOCOL backend into PciCapLib, for config space access
   3   -- internal macro and type definitions.
   4
   5   Copyright (C) 2018, Red Hat, Inc.
   6
   7   SPDX-License-Identifier: BSD-2-Clause-Patent
   8 **/
   9
  10 #ifndef __UEFI_PCI_CAP_PCI_IO_LIB_H__
  11 #define __UEFI_PCI_CAP_PCI_IO_LIB_H__
  12
  13 #include <Library/DebugLib.h>
  14
  15 #include <Library/PciCapPciIoLib.h>
  16
  17 #define PROTO_DEV_SIG  SIGNATURE_64 ('P', 'C', 'P', 'I', 'O', 'P', 'R', 'T')
  18
  19 typedef struct {
  20   //
  21   // Signature identifying the derived class.
  22   //
  23   UINT64                 Signature;
  24   //
  25   // Members added by the derived class, specific to the use of
  26   // EFI_PCI_IO_PROTOCOL.
  27   //
  28   EFI_PCI_IO_PROTOCOL    *PciIo;
  29   //
  30   // Base class.
  31   //
  32   PCI_CAP_DEV            BaseDevice;
  33 } PROTO_DEV;
  34
  35 #define PROTO_DEV_FROM_PCI_CAP_DEV(PciDevice) \
  36   CR (PciDevice, PROTO_DEV, BaseDevice, PROTO_DEV_SIG)
  37
  38 #endif // __UEFI_PCI_CAP_PCI_IO_LIB_H__