devicepath.c

来自「EFI BIOS是Intel提出的下一代的BIOS标准。这里上传的Edk源代码是」· C语言 代码 · 共 1,127 行 · 第 1/2 页

{
  USB_DEVICE_PATH *Usb;

  Usb = DevPath;
  CatPrint (Str, L"Usb(%x,%x)", Usb->ParentPortNumber, Usb->InterfaceNumber);
}

VOID
DevPathUsbClass (
  IN OUT POOL_PRINT       *Str,
  IN VOID                 *DevPath
  )
{
  USB_CLASS_DEVICE_PATH *UsbClass;

  UsbClass = DevPath;
  CatPrint (
    Str,
    L"Usb Class(%x,%x,%x,%x,%x)",
    UsbClass->VendorId,
    UsbClass->ProductId,
    UsbClass->DeviceClass,
    UsbClass->DeviceSubClass,
    UsbClass->DeviceProtocol
    );
}

VOID
DevPathI2O (
  IN OUT POOL_PRINT       *Str,
  IN VOID                 *DevPath
  )
{
  I2O_DEVICE_PATH *I2O;

  I2O = DevPath;
  CatPrint (Str, L"I2O(%x)", I2O->Tid);
}

VOID
DevPathMacAddr (
  IN OUT POOL_PRINT       *Str,
  IN VOID                 *DevPath
  )
{
  MAC_ADDR_DEVICE_PATH  *MAC;
  UINTN                 HwAddressSize;
  UINTN                 Index;

  MAC           = DevPath;

  HwAddressSize = sizeof (EFI_MAC_ADDRESS);
  if (MAC->IfType == 0x01 || MAC->IfType == 0x00) {
    HwAddressSize = 6;
  }

  CatPrint (Str, L"Mac(");

  for (Index = 0; Index < HwAddressSize; Index++) {
    CatPrint (Str, L"%02x", MAC->MacAddress.Addr[Index]);
  }

  CatPrint (Str, L")");
}

VOID
DevPathIPv4 (
  IN OUT POOL_PRINT       *Str,
  IN VOID                 *DevPath
  )
{
  IPv4_DEVICE_PATH  *IP;

  IP = DevPath;
  CatPrint (
    Str,
    L"IPv4(%d.%d.%d.%d:%d)",
    IP->RemoteIpAddress.Addr[0],
    IP->RemoteIpAddress.Addr[1],
    IP->RemoteIpAddress.Addr[2],
    IP->RemoteIpAddress.Addr[3],
    IP->RemotePort
    );
}

VOID
DevPathIPv6 (
  IN OUT POOL_PRINT       *Str,
  IN VOID                 *DevPath
  )
{
  IPv6_DEVICE_PATH  *IP;

  IP = DevPath;
  CatPrint (Str, L"IP-v6(not-done)");
}

VOID
DevPathInfiniBand (
  IN OUT POOL_PRINT       *Str,
  IN VOID                 *DevPath
  )
{
  INFINIBAND_DEVICE_PATH  *InfiniBand;

  InfiniBand = DevPath;
  CatPrint (Str, L"InfiniBand(not-done)");
}

VOID
DevPathUart (
  IN OUT POOL_PRINT       *Str,
  IN VOID                 *DevPath
  )
{
  UART_DEVICE_PATH  *Uart;
  CHAR8             Parity;

  Uart = DevPath;
  switch (Uart->Parity) {
  case 0:
    Parity = 'D';
    break;

  case 1:
    Parity = 'N';
    break;

  case 2:
    Parity = 'E';
    break;

  case 3:
    Parity = 'O';
    break;

  case 4:
    Parity = 'M';
    break;

  case 5:
    Parity = 'S';
    break;

  default:
    Parity = 'x';
    break;
  }

  if (Uart->BaudRate == 0) {
    CatPrint (Str, L"Uart(DEFAULT,%c,", Parity);
  } else {
    CatPrint (Str, L"Uart(%d,%c,", Uart->BaudRate, Parity);
  }

  if (Uart->DataBits == 0) {
    CatPrint (Str, L"D,");
  } else {
    CatPrint (Str, L"%d,", Uart->DataBits);
  }

  switch (Uart->StopBits) {
  case 0:
    CatPrint (Str, L"D)");
    break;

  case 1:
    CatPrint (Str, L"1)");
    break;

  case 2:
    CatPrint (Str, L"1.5)");
    break;

  case 3:
    CatPrint (Str, L"2)");
    break;

  default:
    CatPrint (Str, L"x)");
    break;
  }
}

VOID
DevPathHardDrive (
  IN OUT POOL_PRINT       *Str,
  IN VOID                 *DevPath
  )
{
  HARDDRIVE_DEVICE_PATH *Hd;

  Hd = DevPath;
  switch (Hd->SignatureType) {
  case SIGNATURE_TYPE_MBR:
    CatPrint (
      Str,
      L"HD(Part%d,Sig%08x)",
      Hd->PartitionNumber,
      *((UINT32 *) (&(Hd->Signature[0])))
      );
    break;

  case SIGNATURE_TYPE_GUID:
    CatPrint (
      Str,
      L"HD(Part%d,Sig%g)",
      Hd->PartitionNumber,
      (EFI_GUID *) &(Hd->Signature[0])
      );
    break;

  default:
    CatPrint (
      Str,
      L"HD(Part%d,MBRType=%02x,SigType=%02x)",
      Hd->PartitionNumber,
      Hd->MBRType,
      Hd->SignatureType
      );
    break;
  }
}

VOID
DevPathCDROM (
  IN OUT POOL_PRINT       *Str,
  IN VOID                 *DevPath
  )
{
  CDROM_DEVICE_PATH *Cd;

  Cd = DevPath;
  CatPrint (Str, L"CDROM(Entry%x)", Cd->BootEntry);
}

VOID
DevPathFilePath (
  IN OUT POOL_PRINT       *Str,
  IN VOID                 *DevPath
  )
{
  FILEPATH_DEVICE_PATH  *Fp;

  Fp = DevPath;
  CatPrint (Str, L"%s", Fp->PathName);
}

VOID
DevPathMediaProtocol (
  IN OUT POOL_PRINT       *Str,
  IN VOID                 *DevPath
  )
{
  MEDIA_PROTOCOL_DEVICE_PATH  *MediaProt;

  MediaProt = DevPath;
  CatPrint (Str, L"%g", &MediaProt->Protocol);
}

VOID
DevPathFvFilePath (
  IN OUT POOL_PRINT       *Str,
  IN VOID                 *DevPath
  )
{
  MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *FvFilePath;

  FvFilePath = DevPath;
  CatPrint (Str, L"%g", &FvFilePath->NameGuid);
}

VOID
DevPathBssBss (
  IN OUT POOL_PRINT       *Str,
  IN VOID                 *DevPath
  )
{
  BBS_BBS_DEVICE_PATH *Bbs;
  CHAR16              *Type;

  Bbs = DevPath;
  switch (Bbs->DeviceType) {
  case BBS_TYPE_FLOPPY:
    Type = L"Floppy";
    break;

  case BBS_TYPE_HARDDRIVE:
    Type = L"Harddrive";
    break;

  case BBS_TYPE_CDROM:
    Type = L"CDROM";
    break;

  case BBS_TYPE_PCMCIA:
    Type = L"PCMCIA";
    break;

  case BBS_TYPE_USB:
    Type = L"Usb";
    break;

  case BBS_TYPE_EMBEDDED_NETWORK:
    Type = L"Net";
    break;

  default:
    Type = L"?";
    break;
  }
  //
  // Since current Print function hasn't implemented %a (for ansi string)
  // we will only print Unicode strings.
  //
  CatPrint (Str, L"Legacy-%s", Type);
}

VOID
DevPathEndInstance (
  IN OUT POOL_PRINT       *Str,
  IN VOID                 *DevPath
  )
{
  CatPrint (Str, L",");
}

VOID
DevPathNodeUnknown (
  IN OUT POOL_PRINT       *Str,
  IN VOID                 *DevPath
  )
{
  CatPrint (Str, L"?");
}

DEVICE_PATH_STRING_TABLE  DevPathTable[] = {
  HARDWARE_DEVICE_PATH,
  HW_PCI_DP,
  DevPathPci,
  HARDWARE_DEVICE_PATH,
  HW_PCCARD_DP,
  DevPathPccard,
  HARDWARE_DEVICE_PATH,
  HW_MEMMAP_DP,
  DevPathMemMap,
  HARDWARE_DEVICE_PATH,
  HW_VENDOR_DP,
  DevPathVendor,
  HARDWARE_DEVICE_PATH,
  HW_CONTROLLER_DP,
  DevPathController,
  ACPI_DEVICE_PATH,
  ACPI_DP,
  DevPathAcpi,
  ACPI_DEVICE_PATH,
  ACPI_EXTENDED_DP,
  DevPathExtendedAcpi,
  ACPI_DEVICE_PATH,
  ACPI_ADR_DP,
  DevPathAdrAcpi,
  MESSAGING_DEVICE_PATH,
  MSG_ATAPI_DP,
  DevPathAtapi,
  MESSAGING_DEVICE_PATH,
  MSG_SCSI_DP,
  DevPathScsi,
  MESSAGING_DEVICE_PATH,
  MSG_FIBRECHANNEL_DP,
  DevPathFibre,
  MESSAGING_DEVICE_PATH,
  MSG_1394_DP,
  DevPath1394,
  MESSAGING_DEVICE_PATH,
  MSG_USB_DP,
  DevPathUsb,
  MESSAGING_DEVICE_PATH,
  MSG_USB_CLASS_DP,
  DevPathUsbClass,
  MESSAGING_DEVICE_PATH,
  MSG_I2O_DP,
  DevPathI2O,
  MESSAGING_DEVICE_PATH,
  MSG_MAC_ADDR_DP,
  DevPathMacAddr,
  MESSAGING_DEVICE_PATH,
  MSG_IPv4_DP,
  DevPathIPv4,
  MESSAGING_DEVICE_PATH,
  MSG_IPv6_DP,
  DevPathIPv6,
  MESSAGING_DEVICE_PATH,
  MSG_INFINIBAND_DP,
  DevPathInfiniBand,
  MESSAGING_DEVICE_PATH,
  MSG_UART_DP,
  DevPathUart,
  MESSAGING_DEVICE_PATH,
  MSG_VENDOR_DP,
  DevPathVendor,
  MEDIA_DEVICE_PATH,
  MEDIA_HARDDRIVE_DP,
  DevPathHardDrive,
  MEDIA_DEVICE_PATH,
  MEDIA_CDROM_DP,
  DevPathCDROM,
  MEDIA_DEVICE_PATH,
  MEDIA_VENDOR_DP,
  DevPathVendor,
  MEDIA_DEVICE_PATH,
  MEDIA_FILEPATH_DP,
  DevPathFilePath,
  MEDIA_DEVICE_PATH,
  MEDIA_PROTOCOL_DP,
  DevPathMediaProtocol,
#if (EFI_SPECIFICATION_VERSION < 0x00020000)
  MEDIA_DEVICE_PATH,
  MEDIA_FV_FILEPATH_DP,
  DevPathFvFilePath,
#endif
  BBS_DEVICE_PATH,
  BBS_BBS_DP,
  DevPathBssBss,
  END_DEVICE_PATH_TYPE,
  END_INSTANCE_DEVICE_PATH_SUBTYPE,
  DevPathEndInstance,
  0,
  0,
  NULL
};

CHAR16 *
DevicePathToStr (
  IN EFI_DEVICE_PATH_PROTOCOL     *DevPath
  )
/*++

  Turns the Device Path into a printable string.  Allcoates
  the string from pool.  The caller must SafeFreePool the returned
  string.

--*/
{
  POOL_PRINT                Str;
  EFI_DEVICE_PATH_PROTOCOL  *DevPathNode;
  VOID (*DumpNode) (POOL_PRINT *, VOID *);

  UINTN Index;
  UINTN NewSize;

  EfiZeroMem (&Str, sizeof (Str));

  if (DevPath == NULL) {
    goto Done;
  }
  //
  // Unpacked the device path
  //
  DevPath = BdsLibUnpackDevicePath (DevPath);
  ASSERT (DevPath);

  //
  // Process each device path node
  //
  DevPathNode = DevPath;
  while (!IsDevicePathEnd (DevPathNode)) {
    //
    // Find the handler to dump this device path node
    //
    DumpNode = NULL;
    for (Index = 0; DevPathTable[Index].Function; Index += 1) {

      if (DevicePathType (DevPathNode) == DevPathTable[Index].Type &&
          DevicePathSubType (DevPathNode) == DevPathTable[Index].SubType
          ) {
        DumpNode = DevPathTable[Index].Function;
        break;
      }
    }
    //
    // If not found, use a generic function
    //
    if (!DumpNode) {
      DumpNode = DevPathNodeUnknown;
    }
    //
    //  Put a path seperator in if needed
    //
    if (Str.len && DumpNode != DevPathEndInstance) {
      CatPrint (&Str, L"/");
    }
    //
    // Print this node of the device path
    //
    DumpNode (&Str, DevPathNode);

    //
    // Next device path node
    //
    DevPathNode = NextDevicePathNode (DevPathNode);
  }
  //
  // Shrink pool used for string allocation
  //
  gBS->FreePool (DevPath);

Done:
  NewSize = (Str.len + 1) * sizeof (CHAR16);
  Str.str = ReallocatePool (Str.str, NewSize, NewSize);
  ASSERT (Str.str != NULL);
  Str.str[Str.len] = 0;
  return Str.str;
}

EFI_DEVICE_PATH_PROTOCOL *
LibDuplicateDevicePathInstance (
  IN EFI_DEVICE_PATH_PROTOCOL  *DevPath
  )
/*++

Routine Description:

  Function creates a device path data structure that identically matches the 
  device path passed in.

Arguments:

  DevPath      - A pointer to a device path data structure.

Returns:

  The new copy of DevPath is created to identically match the input.  
  Otherwise, NULL is returned.

--*/
{
  EFI_DEVICE_PATH_PROTOCOL  *NewDevPath;
  EFI_DEVICE_PATH_PROTOCOL  *DevicePathInst;
  EFI_DEVICE_PATH_PROTOCOL  *Temp;
  UINTN                     Size;

  //
  // get the size of an instance from the input
  //
  Temp            = DevPath;
  DevicePathInst  = EfiDevicePathInstance (&Temp, &Size);

  //
  // Make a copy
  //
  NewDevPath = NULL;
  if (Size) {
    NewDevPath = EfiLibAllocateZeroPool (Size);
    ASSERT (NewDevPath != NULL);
  }

  if (NewDevPath) {
    EfiCopyMem (NewDevPath, DevicePathInst, Size);
  }

  return NewDevPath;
}