source: vbox/trunk/src/VBox/Devices/EFI/Firmware/NetworkPkg/UefiPxeBcDxe/PxeBcDriver.h@ 48674

/** @file
  Driver Binding functions declaration for UefiPxeBc Driver.

  Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>

  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 __EFI_PXEBC_DRIVER_H__
#define __EFI_PXEBC_DRIVER_H__

extern EFI_COMPONENT_NAME_PROTOCOL  gPxeBcComponentName;
extern EFI_COMPONENT_NAME2_PROTOCOL gPxeBcComponentName2;

/**
  Test to see if this driver supports ControllerHandle. This service
  is called by the EFI boot service ConnectController(). In
  order to make drivers as small as possible, there are a few calling
  restrictions for this service. ConnectController() must
  follow these calling restrictions. If any other agent wishes to call
  Supported() it must also follow these calling restrictions.

  @param[in]  This                The pointer to the driver binding protocol.
  @param[in]  ControllerHandle    The handle of device to be tested.
  @param[in]  RemainingDevicePath Optional parameter use to pick a specific child
                                  device to be started.

  @retval EFI_SUCCESS         This driver supports this device.
  @retval EFI_UNSUPPORTED     This driver does not support this device.

**/
EFI_STATUS
EFIAPI
PxeBcDriverBindingSupported (
  IN EFI_DRIVER_BINDING_PROTOCOL  *This,
  IN EFI_HANDLE                   ControllerHandle,
  IN EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath OPTIONAL
  );


/**
  Start this driver on ControllerHandle. This service is called by the
  EFI boot service ConnectController(). In order to make
  drivers as small as possible, there are a few calling restrictions for
  this service. ConnectController() must follow these
  calling restrictions. If any other agent wishes to call Start() it
  must also follow these calling restrictions.

  @param[in]  This                 The pointer to the driver binding protocol.
  @param[in]  ControllerHandle     The handle of device to be started.
  @param[in]  RemainingDevicePath  Optional parameter used to pick a specific child
                                   device to be started.

  @retval EFI_SUCCESS          This driver is installed to ControllerHandle.
  @retval EFI_ALREADY_STARTED  This driver is already running on ControllerHandle.
  @retval other                This driver does not support this device.

**/
EFI_STATUS
EFIAPI
PxeBcDriverBindingStart (
  IN EFI_DRIVER_BINDING_PROTOCOL  *This,
  IN EFI_HANDLE                   ControllerHandle,
  IN EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath OPTIONAL
  );


/**
  Stop this driver on ControllerHandle. This service is called by the
  EFI boot service DisconnectController(). In order to
  make drivers as small as possible, there are a few calling
  restrictions for this service. DisconnectController()
  must follow these calling restrictions. If any other agent wishes
  to call Stop() it must also follow these calling restrictions.

  @param[in]  This              Protocol instance pointer.
  @param[in]  ControllerHandle  Handle of device to stop driver on
  @param[in]  NumberOfChildren  Number of Handles in ChildHandleBuffer. If number of
                                children is zero stop the entire bus driver.
  @param[in]  ChildHandleBuffer List of Child Handles to Stop.

  @retval EFI_SUCCESS           This driver is removed ControllerHandle
  @retval EFI_DEVICE_ERROR      An unexpected system or network error occurred.
  @retval Others                This driver was not removed from this device.

**/
EFI_STATUS
EFIAPI
PxeBcDriverBindingStop (
  IN EFI_DRIVER_BINDING_PROTOCOL  *This,
  IN EFI_HANDLE                   ControllerHandle,
  IN UINTN                        NumberOfChildren,
  IN EFI_HANDLE                   *ChildHandleBuffer
  );

#endif