EdkModulePkg/Universal/DevicePath/Dxe/DevicePath.c

   1 /*++
   2
   3 Copyright (c) 2006, 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   DevicePathDriver.c
  15
  16 Abstract:
  17
  18   Device Path Driver to produce DevPathUtilities Protocol, DevPathFromText Protocol
  19   and DevPathToText Protocol.
  20
  21 --*/
  22
  23 #include <Uefi/UefiSpec.h>
  24 #include <Protocol/DevicePath.h>
  25 #include "DevicePath.h"
  26
  27 DEVICE_PATH_DRIVER_PRIVATE_DATA mPrivateData;
  28
  29 EFI_GUID mEfiDevicePathMessagingUartFlowControlGuid = DEVICE_PATH_MESSAGING_UART_FLOW_CONTROL;
  30 EFI_GUID mEfiDevicePathMessagingSASGuid             = DEVICE_PATH_MESSAGING_SAS;
  31
  32 STATIC EFI_DEVICE_PATH_UTILITIES_PROTOCOL mDevicePathUtilitiesProtocol = {
  33   GetDevicePathSize,
  34   DuplicateDevicePath,
  35   AppendDevicePath,
  36   AppendDeviceNode,
  37   AppendDevicePathInstance,
  38   GetNextDevicePathInstance,
  39   IsDevicePathMultiInstance,
  40   CreateDeviceNode
  41 };
  42
  43 STATIC EFI_DEVICE_PATH_TO_TEXT_PROTOCOL   mDevicePathToTextProtocol = {
  44   ConvertDeviceNodeToText,
  45   ConvertDevicePathToText
  46 };
  47
  48 STATIC EFI_DEVICE_PATH_FROM_TEXT_PROTOCOL mDevicePathFromTextProtocol = {
  49   ConvertTextToDeviceNode,
  50   ConvertTextToDevicePath
  51 };
  52
  53 EFI_STATUS
  54 EFIAPI
  55 DevicePathEntryPoint (
  56   IN EFI_HANDLE           ImageHandle,
  57   IN EFI_SYSTEM_TABLE     *SystemTable
  58   )
  59 /*++
  60
  61   Routine Description:
  62     Entry point for EFI drivers.
  63
  64   Arguments:
  65    ImageHandle - EFI_HANDLE
  66    SystemTable - EFI_SYSTEM_TABLE
  67
  68   Returns:
  69     EFI_SUCCESS
  70     others
  71
  72 --*/
  73 {
  74   EFI_STATUS  Status;
  75
  76   mPrivateData.Signature = DEVICE_PATH_DRIVER_SIGNATURE;
  77
  78   mPrivateData.DevicePathUtilities.GetDevicePathSize         = GetDevicePathSize;
  79   mPrivateData.DevicePathUtilities.DuplicateDevicePath       = DuplicateDevicePath;
  80   mPrivateData.DevicePathUtilities.AppendDevicePath          = AppendDevicePath;
  81   mPrivateData.DevicePathUtilities.AppendDeviceNode          = AppendDeviceNode;
  82   mPrivateData.DevicePathUtilities.AppendDevicePathInstance  = AppendDevicePathInstance;
  83   mPrivateData.DevicePathUtilities.GetNextDevicePathInstance = GetNextDevicePathInstance;
  84   mPrivateData.DevicePathUtilities.IsDevicePathMultiInstance = IsDevicePathMultiInstance;
  85   mPrivateData.DevicePathUtilities.CreateDeviceNode          = CreateDeviceNode;
  86
  87   mPrivateData.DevicePathToText.ConvertDeviceNodeToText      = ConvertDeviceNodeToText;
  88   mPrivateData.DevicePathToText.ConvertDevicePathToText      = ConvertDevicePathToText;
  89
  90   mPrivateData.DevicePathFromText.ConvertTextToDeviceNode    = ConvertTextToDeviceNode;
  91   mPrivateData.DevicePathFromText.ConvertTextToDevicePath    = ConvertTextToDevicePath;
  92
  93   mPrivateData.Handle                                        = NULL;
  94
  95   Status = gBS->InstallMultipleProtocolInterfaces (
  96                   &mPrivateData.Handle,
  97                   &gEfiDevicePathUtilitiesProtocolGuid,
  98                   &mPrivateData.DevicePathUtilities,
  99                   &gEfiDevicePathToTextProtocolGuid,
 100                   &mPrivateData.DevicePathToText,
 101                   &gEfiDevicePathFromTextProtocolGuid,
 102                   &mPrivateData.DevicePathFromText,
 103                   NULL
 104                   );
 105
 106   return Status;
 107 }