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      1 /*++
      2 
      3 Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>
      4 This program and the accompanying materials
      5 are licensed and made available under the terms and conditions of the BSD License
      6 which accompanies this distribution.  The full text of the license may be found at
      7 http://opensource.org/licenses/bsd-license.php
      8 
      9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
     10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
     11 
     12 Module Name:
     13 
     14  PciCfg2.h
     15 
     16 Abstract:
     17 
     18   PciCfg2 PPI as defined in PI1.0 specification
     19 
     20   Used to access PCI configuration space in PEI
     21 
     22 --*/
     23 
     24 #ifndef _PEI_PCI_CFG2_H_
     25 #define _PEI_PCI_CFG2_H_
     26 #include "EfiPciCfg.h"
     27 
     28 #define EFI_PEI_PCI_CFG2_PPI_GUID \
     29   { \
     30     0x57a449a, 0x1fdc, 0x4c06, {0xbf, 0xc9, 0xf5, 0x3f, 0x6a, 0x99, 0xbb, 0x92} \
     31   }
     32 
     33 EFI_FORWARD_DECLARATION (EFI_PEI_PCI_CFG2_PPI);
     34 
     35 
     36 typedef
     37 EFI_STATUS
     38 (EFIAPI *EFI_PEI_PCI_CFG_PPI_IO) (
     39   IN CONST EFI_PEI_SERVICES         **PeiServices,
     40   IN CONST EFI_PEI_PCI_CFG2_PPI     *This,
     41   IN EFI_PEI_PCI_CFG_PPI_WIDTH      Width,
     42   IN UINT64                         Address,
     43   IN OUT VOID                       *Buffer
     44   );
     45 
     46 typedef
     47 EFI_STATUS
     48 (EFIAPI *EFI_PEI_PCI_CFG_PPI_RW) (
     49   IN CONST EFI_PEI_SERVICES         **PeiServices,
     50   IN CONST EFI_PEI_PCI_CFG2_PPI     *This,
     51   IN EFI_PEI_PCI_CFG_PPI_WIDTH      Width,
     52   IN UINT64                         Address,
     53   IN VOID                           *SetBits,
     54   IN VOID                           *ClearBits
     55   );
     56 
     57 struct _EFI_PEI_PCI_CFG2_PPI {
     58   EFI_PEI_PCI_CFG_PPI_IO  Read;
     59   EFI_PEI_PCI_CFG_PPI_IO  Write;
     60   EFI_PEI_PCI_CFG_PPI_RW  Modify;
     61   UINT16                  Segment;
     62 };
     63 
     64 extern EFI_GUID gPeiPciCfg2PpiGuid;
     65 
     66 #endif
     67