/** @file
*
*  Copyright (c) 2011-2015, ARM Limited. All rights reserved.
*
*  This program and the accompanying materials
*  are licensed and made available under the terms and conditions of the BSD License
*  which accompanies this distribution.  The full text of the license may be found at
*  http://opensource.org/licenses/bsd-license.php
*
*  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
*  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
*
**/

#ifndef __BDS_INTERNAL_H__
#define __BDS_INTERNAL_H__

#include <PiDxe.h>
#include <Library/ArmLib.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DxeServicesTableLib.h>
#include <Library/HobLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiLib.h>
#include <Library/DevicePathLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/DebugLib.h>
#include <Library/BdsLib.h>
#include <Library/PcdLib.h>
#include <Library/PrintLib.h>
#include <Library/UefiRuntimeServicesTableLib.h>

#include <Guid/GlobalVariable.h>
#include <Guid/FileInfo.h>

#include <Protocol/DevicePath.h>
#include <Protocol/DevicePathFromText.h>
#include <Protocol/SimpleFileSystem.h>
#include <Protocol/FirmwareVolume2.h>
#include <Protocol/LoadFile.h>
#include <Protocol/PxeBaseCode.h>

#include <Uefi.h>

/**
 * Check if the file loader can support this device path.
 *
 * @param DevicePath    EFI Device Path of the image to load.
 *                      This device path generally comes from the boot entry (ie: Boot####).
 * @param Handle        Handle of the driver supporting the device path
 * @param RemainingDevicePath   Part of the EFI Device Path that has not been resolved during
 *                      the Device Path discovery
 */
typedef BOOLEAN (*BDS_FILE_LOADER_SUPPORT) (
  IN EFI_DEVICE_PATH            *DevicePath,
  IN EFI_HANDLE                 Handle,
  IN EFI_DEVICE_PATH            *RemainingDevicePath
  );

/**
 * Function to load an image from a given Device Path for a
 * specific support (FileSystem, TFTP, PXE, ...)
 *
 * @param DevicePath    EFI Device Path of the image to load.
 *                      This device path generally comes from the boot entry (ie: Boot####).
 *                      This path is also defined as 'OUT' as there are some device paths that
 *                      might not be completed such as EFI path for removable device. In these
 *                      cases, it is expected the loader to add \EFI\BOOT\BOOT(ARM|AA64).EFI
 * @param Handle        Handle of the driver supporting the device path
 * @param RemainingDevicePath   Part of the EFI Device Path that has not been resolved during
 *                      the Device Path discovery
 * @param Type          Define where the image should be loaded (see EFI_ALLOCATE_TYPE definition)
 * @param Image         Base Address of the image has been loaded
 * @param ImageSize     Size of the image that has been loaded
 */
typedef EFI_STATUS (*BDS_FILE_LOADER_LOAD_IMAGE) (
  IN OUT EFI_DEVICE_PATH        **DevicePath,
  IN     EFI_HANDLE             Handle,
  IN     EFI_DEVICE_PATH        *RemainingDevicePath,
  IN     EFI_ALLOCATE_TYPE      Type,
  IN OUT EFI_PHYSICAL_ADDRESS*  Image,
  OUT    UINTN                  *ImageSize
  );

typedef struct {
  BDS_FILE_LOADER_SUPPORT     Support;
  BDS_FILE_LOADER_LOAD_IMAGE  LoadImage;
} BDS_FILE_LOADER;

typedef struct _BDS_SYSTEM_MEMORY_RESOURCE {
  LIST_ENTRY                  Link; // This attribute must be the first entry of this structure (to avoid pointer computation)
  EFI_PHYSICAL_ADDRESS        PhysicalStart;
  UINT64                      ResourceLength;
} BDS_SYSTEM_MEMORY_RESOURCE;

typedef struct {
  UINT64  FileSize;
  UINT64  DownloadedNbOfBytes;
  UINT64  LastReportedNbOfBytes;
} BDS_TFTP_CONTEXT;

EFI_STATUS
BdsLoadImage (
  IN     EFI_DEVICE_PATH       *DevicePath,
  IN     EFI_ALLOCATE_TYPE     Type,
  IN OUT EFI_PHYSICAL_ADDRESS* Image,
  OUT    UINTN                 *FileSize
  );

#endif