PciCfg2.h

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#ifndef __PEI_PCI_CFG2_H__
#define __PEI_PCI_CFG2_H__
 
#include <Library/BaseLib.h>
 
#define EFI_PEI_PCI_CFG2_PPI_GUID \
  { 0x57a449a, 0x1fdc, 0x4c06, { 0xbf, 0xc9, 0xf5, 0x3f, 0x6a, 0x99, 0xbb, 0x92 } }
 
typedef struct _EFI_PEI_PCI_CFG2_PPI EFI_PEI_PCI_CFG2_PPI;
 
#define EFI_PEI_PCI_CFG_ADDRESS(bus, dev, func, reg) \
  (UINT64) ( \
  (((UINTN) bus) << 24) | \
  (((UINTN) dev) << 16) | \
  (((UINTN) func) << 8) | \
  (((UINTN) (reg)) < 256 ? ((UINTN) (reg)) : (UINT64) (LShiftU64 ((UINT64) (reg), 32))))
 
typedef enum {
  EfiPeiPciCfgWidthUint8 = 0,
  EfiPeiPciCfgWidthUint16 = 1,
  EfiPeiPciCfgWidthUint32 = 2,
  EfiPeiPciCfgWidthUint64 = 3,
  EfiPeiPciCfgWidthMaximum
} EFI_PEI_PCI_CFG_PPI_WIDTH;
 
typedef struct {
  UINT8     Register;
  UINT8     Function;
  UINT8     Device;
  UINT8     Bus;
  UINT32    ExtendedRegister;
} EFI_PEI_PCI_CFG_PPI_PCI_ADDRESS;
 
typedef
EFI_STATUS
(EFIAPI *EFI_PEI_PCI_CFG2_PPI_IO)(
  IN CONST  EFI_PEI_SERVICES          **PeiServices,
  IN CONST  EFI_PEI_PCI_CFG2_PPI      *This,
  IN        EFI_PEI_PCI_CFG_PPI_WIDTH Width,
  IN        UINT64                    Address,
  IN OUT    VOID                      *Buffer
  );
 
typedef
EFI_STATUS
(EFIAPI *EFI_PEI_PCI_CFG2_PPI_RW)(
  IN CONST  EFI_PEI_SERVICES          **PeiServices,
  IN CONST  EFI_PEI_PCI_CFG2_PPI      *This,
  IN        EFI_PEI_PCI_CFG_PPI_WIDTH Width,
  IN        UINT64                    Address,
  IN        VOID                      *SetBits,
  IN        VOID                      *ClearBits
  );
 
struct _EFI_PEI_PCI_CFG2_PPI {
  EFI_PEI_PCI_CFG2_PPI_IO    Read;
  EFI_PEI_PCI_CFG2_PPI_IO    Write;
  EFI_PEI_PCI_CFG2_PPI_RW    Modify;
  UINT16                     Segment;
};
 
extern EFI_GUID  gEfiPciCfg2PpiGuid;
 
#endif