MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassImpl.h

   1 /** @file
   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   UsbMassImpl.h
  15
  16 Abstract:
  17
  18   The implementation of USB mass storage class device driver.
  19
  20 Revision History
  21
  22
  23 **/
  24
  25 #ifndef _EFI_USBMASS_IMPL_H_
  26 #define _EFI_USBMASS_IMPL_H_
  27
  28 typedef struct _USB_MASS_DEVICE USB_MASS_DEVICE;
  29
  30 #include "UsbMass.h"
  31 #include "UsbMassBot.h"
  32 #include "UsbMassCbi.h"
  33 #include "UsbMassBoot.h"
  34
  35 enum {
  36   //
  37   // MassStorage raises TPL to TPL_NOTIFY to serialize all its operations
  38   // to protect shared data structures.
  39   //
  40   USB_MASS_TPL          = TPL_NOTIFY,
  41
  42   USB_MASS_SIGNATURE    = EFI_SIGNATURE_32 ('U', 's', 'b', 'M'),
  43 };
  44
  45 struct _USB_MASS_DEVICE {
  46   UINT32                Signature;
  47   EFI_HANDLE            Controller;
  48   EFI_USB_IO_PROTOCOL   *UsbIo;
  49   EFI_BLOCK_IO_PROTOCOL BlockIo;
  50   EFI_BLOCK_IO_MEDIA    BlockIoMedia;
  51   BOOLEAN               OpticalStorage;
  52   UINT8                 Lun;          // Logical Unit Number
  53   UINT8                 Pdt;          // Peripheral Device Type
  54   USB_MASS_TRANSPORT    *Transport;   // USB mass storage transport protocol
  55   VOID                  *Context;     // Opaque storage for mass transport
  56 };
  57
  58 #define USB_MASS_DEVICE_FROM_BLOCKIO(a) \
  59         CR (a, USB_MASS_DEVICE, BlockIo, USB_MASS_SIGNATURE)
  60
  61 extern EFI_COMPONENT_NAME_PROTOCOL   gUsbMassStorageComponentName;
  62 extern EFI_COMPONENT_NAME2_PROTOCOL  gUsbMassStorageComponentName2;
  63
  64 #endif