185 lines
6.9 KiB
C
185 lines
6.9 KiB
C
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/** @file
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Copyright (c) 2005 - 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef __EFI_IP4_DRIVER_H__
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#define __EFI_IP4_DRIVER_H__
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#include <Protocol/ServiceBinding.h>
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extern EFI_DRIVER_BINDING_PROTOCOL gIp4DriverBinding;
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extern EFI_COMPONENT_NAME_PROTOCOL gIp4ComponentName;
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extern EFI_COMPONENT_NAME2_PROTOCOL gIp4ComponentName2;
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extern EFI_UNICODE_STRING_TABLE *gIp4ControllerNameTable;
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typedef struct {
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EFI_SERVICE_BINDING_PROTOCOL *ServiceBinding;
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UINTN NumberOfChildren;
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EFI_HANDLE *ChildHandleBuffer;
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} IP4_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT;
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//
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// Function prototype for the driver's entry point
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//
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/**
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This is the declaration of an EFI image entry point. This entry point is
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the same for UEFI Applications, UEFI OS Loaders, and UEFI Drivers including
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both device drivers and bus drivers.
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The entry point for IP4 driver which install the driver
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binding and component name protocol on its image.
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@param[in] ImageHandle The firmware allocated handle for the UEFI image.
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@param[in] SystemTable A pointer to the EFI System Table.
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@retval EFI_SUCCESS The operation completed successfully.
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@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
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**/
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EFI_STATUS
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EFIAPI
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Ip4DriverEntryPoint (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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);
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//
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// Function prototypes for the Drivr Binding Protocol
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//
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/**
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Test to see if this driver supports ControllerHandle. This service
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is called by the EFI boot service ConnectController(). In
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order to make drivers as small as possible, there are a few calling
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restrictions for this service. ConnectController() must
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follow these calling restrictions. If any other agent wishes to call
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Supported() it must also follow these calling restrictions.
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@param[in] This Protocol instance pointer.
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@param[in] ControllerHandle Handle of device to test
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@param[in] RemainingDevicePath Optional parameter use to pick a specific child
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device to start.
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@retval EFI_SUCCESS This driver supports this device
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@retval EFI_ALREADY_STARTED This driver is already running on this device
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@retval other This driver does not support this device
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**/
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EFI_STATUS
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EFIAPI
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Ip4DriverBindingSupported (
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IN EFI_DRIVER_BINDING_PROTOCOL * This,
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IN EFI_HANDLE ControllerHandle,
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IN EFI_DEVICE_PATH_PROTOCOL * RemainingDevicePath OPTIONAL
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);
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/**
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Start this driver on ControllerHandle. This service is called by the
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EFI boot service ConnectController(). In order to make
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drivers as small as possible, there are a few calling restrictions for
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this service. ConnectController() must follow these
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calling restrictions. If any other agent wishes to call Start() it
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must also follow these calling restrictions.
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@param[in] This Protocol instance pointer.
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@param[in] ControllerHandle Handle of device to bind driver to
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@param[in] RemainingDevicePath Optional parameter use to pick a specific child
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device to start.
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@retval EFI_SUCCESS This driver is added to ControllerHandle
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@retval EFI_ALREADY_STARTED This driver is already running on ControllerHandle
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@retval other This driver does not support this device
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**/
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EFI_STATUS
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EFIAPI
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Ip4DriverBindingStart (
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IN EFI_DRIVER_BINDING_PROTOCOL * This,
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IN EFI_HANDLE ControllerHandle,
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IN EFI_DEVICE_PATH_PROTOCOL * RemainingDevicePath OPTIONAL
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);
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/**
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Stop this driver on ControllerHandle. This service is called by the
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EFI boot service DisconnectController(). In order to
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make drivers as small as possible, there are a few calling
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restrictions for this service. DisconnectController()
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must follow these calling restrictions. If any other agent wishes
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to call Stop() it must also follow these calling restrictions.
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@param[in] This Protocol instance pointer.
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@param[in] ControllerHandle Handle of device to stop driver on
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@param[in] NumberOfChildren Number of Handles in ChildHandleBuffer. If number
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of children is zero stop the entire bus driver.
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@param[in] ChildHandleBuffer List of Child Handles to Stop.
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@retval EFI_SUCCESS This driver is removed ControllerHandle
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@retval other This driver was not removed from this device
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**/
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EFI_STATUS
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EFIAPI
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Ip4DriverBindingStop (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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IN UINTN NumberOfChildren,
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IN EFI_HANDLE *ChildHandleBuffer
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);
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//
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// Function prototypes for the ServiceBinding Protocol
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//
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/**
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Creates a child handle and installs a protocol.
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The CreateChild() function installs a protocol on ChildHandle.
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If ChildHandle is a pointer to NULL, then a new handle is created and returned in ChildHandle.
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If ChildHandle is not a pointer to NULL, then the protocol installs on the existing ChildHandle.
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@param This Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance.
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@param ChildHandle Pointer to the handle of the child to create. If it is NULL,
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then a new handle is created. If it is a pointer to an existing UEFI handle,
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then the protocol is added to the existing UEFI handle.
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@retval EFI_SUCCES The protocol was added to ChildHandle.
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@retval EFI_INVALID_PARAMETER ChildHandle is NULL.
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@retval EFI_OUT_OF_RESOURCES There are not enough resources available to create
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the child
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@retval other The child handle was not created
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**/
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EFI_STATUS
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EFIAPI
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Ip4ServiceBindingCreateChild (
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IN EFI_SERVICE_BINDING_PROTOCOL *This,
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IN OUT EFI_HANDLE *ChildHandle
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);
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/**
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Destroys a child handle with a protocol installed on it.
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The DestroyChild() function does the opposite of CreateChild(). It removes a protocol
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that was installed by CreateChild() from ChildHandle. If the removed protocol is the
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last protocol on ChildHandle, then ChildHandle is destroyed.
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@param This Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance.
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@param ChildHandle Handle of the child to destroy
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@retval EFI_SUCCES The protocol was removed from ChildHandle.
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@retval EFI_UNSUPPORTED ChildHandle does not support the protocol that is being removed.
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@retval EFI_INVALID_PARAMETER Child handle is NULL.
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@retval EFI_ACCESS_DENIED The protocol could not be removed from the ChildHandle
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because its services are being used.
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@retval other The child handle was not destroyed
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**/
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EFI_STATUS
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EFIAPI
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Ip4ServiceBindingDestroyChild (
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IN EFI_SERVICE_BINDING_PROTOCOL *This,
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IN EFI_HANDLE ChildHandle
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);
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#endif
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