EdkCompatibilityPkg/Foundation/Framework/Include/EfiPciCfg.h

   1 /*++
   2
   3 Copyright (c) 2007, Intel Corporation
   4 All rights reserved. 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  EfiPciCfg.h
  15
  16 Abstract:
  17
  18   Abstract the common fields of PciCfg definition between Framework 0.9x
  19   and PI 1.0.
  20
  21 --*/
  22
  23 #ifndef _EFI_PCI_CFG_H_
  24 #define _EFI_PCI_CFG_H_
  25
  26 //
  27 // Framework specification 0.9x definition.
  28 //
  29 typedef enum {
  30   PeiPciCfgWidthUint8   = 0,
  31   PeiPciCfgWidthUint16  = 1,
  32   PeiPciCfgWidthUint32  = 2,
  33   PeiPciCfgWidthUint64  = 3,
  34   PeiPciCfgWidthMaximum
  35 } PEI_PCI_CFG_PPI_WIDTH;
  36
  37 #define PEI_PCI_CFG_ADDRESS(bus, dev, func, reg)  ( \
  38       (UINT64) ((((UINTN) bus) << 24) + (((UINTN) dev) << 16) + (((UINTN) func) << 8) + ((UINTN) reg)) \
  39     ) & 0x00000000ffffffff
  40
  41 //
  42 // PI 1.0 definition.
  43 //
  44 typedef enum {
  45   EfiPeiPciCfgWidthUint8   = 0,
  46   EfiPeiPciCfgWidthUint16  = 1,
  47   EfiPeiPciCfgWidthUint32  = 2,
  48   EfiPeiPciCfgWidthUint64  = 3,
  49   EfiPeiPciCfgWidthMaximum
  50 } EFI_PEI_PCI_CFG_PPI_WIDTH;
  51
  52 #define EFI_PEI_PCI_CFG_ADDRESS(bus, dev, func, reg)   \
  53             (   ((bus) << 24)  | \
  54                 ((dev) << 16)  | \
  55                 ((func) << 8)  | \
  56                 ((reg) < 256 ? (reg): ((UINT64)(reg) << 32)))
  57
  58
  59 #if (PI_SPECIFICATION_VERSION < 0x00010000)
  60
  61 typedef struct {
  62   UINT8 Register;
  63   UINT8 Function;
  64   UINT8 Device;
  65   UINT8 Bus;
  66   UINT8 Reserved[4];
  67 } PEI_PCI_CFG_PPI_PCI_ADDRESS;
  68
  69 typedef PEI_PCI_CFG_PPI_PCI_ADDRESS        EFI_PEI_PCI_CFG_PPI_PCI_ADDRESS;
  70
  71 #else
  72
  73 typedef struct {
  74   UINT8 Register;
  75   UINT8 Function;
  76   UINT8 Device;
  77   UINT8 Bus;
  78   UINT32 ExtendedRegister;
  79 } EFI_PEI_PCI_CFG_PPI_PCI_ADDRESS;
  80 #endif
  81
  82 #endif