1. Fix a bug in PXE driver that the PXE boot do not restart if a new boot option...

[mirror_edk2.git] / MdeModulePkg / Universal / Network / Dhcp4Dxe / Dhcp4Driver.h

/** @file\r
  Header for the DHCP4 driver.\r
  \r
Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>\r
This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution.  The full text of the license may be found at\r
http://opensource.org/licenses/bsd-license.php\r
\r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
\r
#ifndef __EFI_DHCP4_DRIVER_H__\r
#define __EFI_DHCP4_DRIVER_H__\r
\r
extern EFI_COMPONENT_NAME_PROTOCOL  gDhcp4ComponentName;\r
extern EFI_COMPONENT_NAME2_PROTOCOL gDhcp4ComponentName2;\r
\r
/**\r
  Test to see if this driver supports ControllerHandle. This service\r
  is called by the EFI boot service ConnectController(). In\r
  order to make drivers as small as possible, there are a few calling\r
  restrictions for this service. ConnectController() must\r
  follow these calling restrictions. If any other agent wishes to call\r
  Supported() it must also follow these calling restrictions.\r
\r
  @param[in]  This                Protocol instance pointer.\r
  @param[in]  ControllerHandle    Handle of device to test\r
  @param[in]  RemainingDevicePath Optional parameter use to pick a specific child\r
                                  device to start.\r
\r
  @retval EFI_SUCCESS         This driver supports this device\r
  @retval EFI_ALREADY_STARTED This driver is already running on this device\r
  @retval other               This driver does not support this device\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
Dhcp4DriverBindingSupported (\r
  IN EFI_DRIVER_BINDING_PROTOCOL  *This,\r
  IN EFI_HANDLE                   ControllerHandle,\r
  IN EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath OPTIONAL\r
  );\r
\r
/**\r
  Start this driver on ControllerHandle. This service is called by the\r
  EFI boot service ConnectController(). In order to make\r
  drivers as small as possible, there are a few calling restrictions for\r
  this service. ConnectController() must follow these\r
  calling restrictions. If any other agent wishes to call Start() it\r
  must also follow these calling restrictions.\r
\r
  @param[in]  This                 Protocol instance pointer.\r
  @param[in]  ControllerHandle     Handle of device to bind driver to\r
  @param[in]  RemainingDevicePath  Optional parameter use to pick a specific child\r
                                   device to start.\r
\r
  @retval EFI_SUCCESS          This driver is added to ControllerHandle\r
  @retval EFI_ALREADY_STARTED  This driver is already running on ControllerHandle\r
  @retval other                This driver does not support this device\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
Dhcp4DriverBindingStart (\r
  IN EFI_DRIVER_BINDING_PROTOCOL  *This,\r
  IN EFI_HANDLE                   ControllerHandle,\r
  IN EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath OPTIONAL\r
  );\r
\r
/**\r
  Stop this driver on ControllerHandle. This service is called by the\r
  EFI boot service DisconnectController(). In order to\r
  make drivers as small as possible, there are a few calling\r
  restrictions for this service. DisconnectController()\r
  must follow these calling restrictions. If any other agent wishes\r
  to call Stop() it must also follow these calling restrictions.\r
  \r
  @param[in]  This              Protocol instance pointer.\r
  @param[in]  ControllerHandle  Handle of device to stop driver on\r
  @param[in]  NumberOfChildren  Number of Handles in ChildHandleBuffer. If number of\r
                                children is zero stop the entire bus driver.\r
  @param[in]  ChildHandleBuffer List of Child Handles to Stop.\r
\r
  @retval EFI_SUCCESS       This driver is removed ControllerHandle\r
  @retval other             This driver was not removed from this device\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
Dhcp4DriverBindingStop (\r
  IN  EFI_DRIVER_BINDING_PROTOCOL  *This,\r
  IN  EFI_HANDLE                   ControllerHandle,\r
  IN  UINTN                        NumberOfChildren,\r
  IN  EFI_HANDLE                   *ChildHandleBuffer\r
  );\r
\r
/**\r
  Creates a child handle and installs a protocol.\r
  \r
  The CreateChild() function installs a protocol on ChildHandle. \r
  If ChildHandle is a pointer to NULL, then a new handle is created and returned in ChildHandle. \r
  If ChildHandle is not a pointer to NULL, then the protocol installs on the existing ChildHandle.\r
\r
  @param  This        Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance.\r
  @param  ChildHandle Pointer to the handle of the child to create. If it is NULL,\r
                      then a new handle is created. If it is a pointer to an existing UEFI handle, \r
                      then the protocol is added to the existing UEFI handle.\r
\r
  @retval EFI_SUCCES            The protocol was added to ChildHandle.\r
  @retval EFI_INVALID_PARAMETER ChildHandle is NULL.\r
  @retval EFI_OUT_OF_RESOURCES  There are not enough resources availabe to create\r
                                the child\r
  @retval other                 The child handle was not created\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
Dhcp4ServiceBindingCreateChild (\r
  IN EFI_SERVICE_BINDING_PROTOCOL  *This,\r
  IN EFI_HANDLE                    *ChildHandle\r
  );\r
\r
/**\r
  Destroys a child handle with a protocol installed on it.\r
  \r
  The DestroyChild() function does the opposite of CreateChild(). It removes a protocol \r
  that was installed by CreateChild() from ChildHandle. If the removed protocol is the \r
  last protocol on ChildHandle, then ChildHandle is destroyed.\r
\r
  @param  This        Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance.\r
  @param  ChildHandle Handle of the child to destroy\r
\r
  @retval EFI_SUCCES            The protocol was removed from ChildHandle.\r
  @retval EFI_UNSUPPORTED       ChildHandle does not support the protocol that is being removed.\r
  @retval EFI_INVALID_PARAMETER Child handle is NULL.\r
  @retval EFI_ACCESS_DENIED     The protocol could not be removed from the ChildHandle\r
                                because its services are being used.\r
  @retval other                 The child handle was not destroyed\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
Dhcp4ServiceBindingDestroyChild (\r
  IN EFI_SERVICE_BINDING_PROTOCOL  *This,\r
  IN EFI_HANDLE                    ChildHandle\r
  );\r
\r
#endif\r