PciHostBridge.h

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#ifndef _PCI_HOST_BRIDGE_H_
#define _PCI_HOST_BRIDGE_H_
 
#include <PiDxe.h>
#include <IndustryStandard/Acpi.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/PciHostBridgeLib.h>
#include <Protocol/PciHostBridgeResourceAllocation.h>
#include <Protocol/IoMmu.h>
 
#include "PciRootBridge.h"
 
#define PCI_HOST_BRIDGE_SIGNATURE  SIGNATURE_32 ('p', 'h', 'b', 'g')
typedef struct {
  UINTN                                               Signature;
  EFI_HANDLE                                          Handle;
  LIST_ENTRY                                          RootBridges;
  BOOLEAN                                             CanRestarted;
  EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL    ResAlloc;
} PCI_HOST_BRIDGE_INSTANCE;
 
#define PCI_HOST_BRIDGE_FROM_THIS(a)  CR (a, PCI_HOST_BRIDGE_INSTANCE, ResAlloc, PCI_HOST_BRIDGE_SIGNATURE)
 
//
// Macros to translate device address to host address and vice versa. According
// to UEFI 2.7, device address = host address + translation offset.
//
#define TO_HOST_ADDRESS(DeviceAddress, TranslationOffset)  ((DeviceAddress) - (TranslationOffset))
#define TO_DEVICE_ADDRESS(HostAddress, TranslationOffset)  ((HostAddress) + (TranslationOffset))
 
//
// Driver Entry Point
//
 
EFI_STATUS
EFIAPI
InitializePciHostBridge (
  IN EFI_HANDLE        ImageHandle,
  IN EFI_SYSTEM_TABLE  *SystemTable
  );
 
//
//  HostBridge Resource Allocation interface
//
 
EFI_STATUS
EFIAPI
NotifyPhase (
  IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL  *This,
  IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PHASE     Phase
  );
 
EFI_STATUS
EFIAPI
GetNextRootBridge (
  IN     EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL  *This,
  IN OUT EFI_HANDLE                                        *RootBridgeHandle
  );
 
EFI_STATUS
EFIAPI
GetAttributes (
  IN  EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL  *This,
  IN  EFI_HANDLE                                        RootBridgeHandle,
  OUT UINT64                                            *Attributes
  );
 
EFI_STATUS
EFIAPI
StartBusEnumeration (
  IN  EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL  *This,
  IN  EFI_HANDLE                                        RootBridgeHandle,
  OUT VOID                                              **Configuration
  );
 
EFI_STATUS
EFIAPI
SetBusNumbers (
  IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL  *This,
  IN EFI_HANDLE                                        RootBridgeHandle,
  IN VOID                                              *Configuration
  );
 
EFI_STATUS
EFIAPI
SubmitResources (
  IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL  *This,
  IN EFI_HANDLE                                        RootBridgeHandle,
  IN VOID                                              *Configuration
  );
 
EFI_STATUS
EFIAPI
GetProposedResources (
  IN  EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL  *This,
  IN  EFI_HANDLE                                        RootBridgeHandle,
  OUT VOID                                              **Configuration
  );
 
EFI_STATUS
EFIAPI
PreprocessController (
  IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL  *This,
  IN EFI_HANDLE                                        RootBridgeHandle,
  IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_PCI_ADDRESS       PciAddress,
  IN EFI_PCI_CONTROLLER_RESOURCE_ALLOCATION_PHASE      Phase
  );
 
VOID
ResourceConflict (
  IN  PCI_HOST_BRIDGE_INSTANCE  *HostBridge
  );
 
UINT64
GetTranslationByResourceType (
  IN  PCI_ROOT_BRIDGE_INSTANCE  *RootBridge,
  IN  PCI_RESOURCE_TYPE         ResourceType
  );
 
extern EFI_CPU_IO2_PROTOCOL  *mCpuIo;
extern EDKII_IOMMU_PROTOCOL  *mIoMmu;
 
#endif