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      1 /*++
      2 
      3 Copyright (c) 2004 - 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  PciCfg.h
     15 
     16 Abstract:
     17 
     18   PciCfg PPI as defined in PEI CIS specification
     19 
     20   Used to access PCI configuration space in PEI
     21 
     22 --*/
     23 
     24 #ifndef _PEI_PCI_CFG_H_
     25 #define _PEI_PCI_CFG_H_
     26 #include "EfiPciCfg.h"
     27 
     28 #define PEI_PCI_CFG_PPI_GUID \
     29   { \
     30     0xe1f2eba0, 0xf7b9, 0x4a26, {0x86, 0x20, 0x13, 0x12, 0x21, 0x64, 0x2a, 0x90} \
     31   }
     32 
     33 EFI_FORWARD_DECLARATION (PEI_PCI_CFG_PPI);
     34 
     35 
     36 typedef
     37 EFI_STATUS
     38 (EFIAPI *PEI_PCI_CFG_PPI_IO) (
     39   IN EFI_PEI_SERVICES         **PeiServices,
     40   IN PEI_PCI_CFG_PPI          * This,
     41   IN PEI_PCI_CFG_PPI_WIDTH    Width,
     42   IN UINT64                   Address,
     43   IN OUT VOID                 *Buffer
     44   );
     45 
     46 typedef
     47 EFI_STATUS
     48 (EFIAPI *PEI_PCI_CFG_PPI_RW) (
     49   IN EFI_PEI_SERVICES         **PeiServices,
     50   IN PEI_PCI_CFG_PPI          * This,
     51   IN PEI_PCI_CFG_PPI_WIDTH    Width,
     52   IN UINT64                   Address,
     53   IN UINTN                    SetBits,
     54   IN UINTN                    ClearBits
     55   );
     56 
     57 struct _PEI_PCI_CFG_PPI {
     58   PEI_PCI_CFG_PPI_IO  Read;
     59   PEI_PCI_CFG_PPI_IO  Write;
     60   PEI_PCI_CFG_PPI_RW  Modify;
     61 };
     62 
     63 extern EFI_GUID gPeiPciCfgPpiInServiceTableGuid;
     64 
     65 #endif
     66