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/** @file
Copyright (c) 2010, Apple, Inc. 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.
Module Name:
UnixSnp.h
Abstract:
-**/
#ifndef _UNIX_SNP_H_
#define _UNIX_SNP_H_
#include <Uefi.h>
#include <Protocol/SimpleNetwork.h>
#include <Protocol/DevicePath.h>
#include <Protocol/UnixIo.h>
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiLib.h>
#include <Library/DevicePathLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/NetLib.h>
#define NET_ETHER_HEADER_SIZE 14
//
// Private data for driver.
//
#define UNIX_SNP_PRIVATE_DATA_SIGNATURE SIGNATURE_32( 'U', 'S', 'N', 'P' )
typedef struct
{
UINT32 Signature;
EFI_UNIX_THUNK_PROTOCOL* UnixThunk;
EFI_HANDLE DeviceHandle;
EFI_DEVICE_PATH_PROTOCOL* DevicePath;
EFI_MAC_ADDRESS MacAddress;
CHAR8* InterfaceName;
INTN ReadBufferSize;
VOID* ReadBuffer;
//
// Two walking pointers to manage the multiple packets that can be returned
// in a single read.
//
VOID* CurrentReadPointer;
VOID* EndReadPointer;
INTN BpfFd;
EFI_SIMPLE_NETWORK_PROTOCOL Snp;
EFI_SIMPLE_NETWORK_MODE Mode;
} UNIX_SNP_PRIVATE_DATA;
#define UNIX_SNP_PRIVATE_DATA_FROM_SNP_THIS(a) \
CR( a, UNIX_SNP_PRIVATE_DATA, Snp, UNIX_SNP_PRIVATE_DATA_SIGNATURE )
extern EFI_DRIVER_BINDING_PROTOCOL gUnixSnpDriverBinding;
extern EFI_COMPONENT_NAME_PROTOCOL gUnixSnpDriverComponentName;
extern EFI_COMPONENT_NAME2_PROTOCOL gUnixSnpDriverComponentName2;
/**
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 This Protocol instance pointer.
@param ControllerHandle Handle of device to test
@param RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@retval EFI_SUCCESS This driver supports this device
@retval EFI_UNSUPPORTED This driver does not support this device
**/
EFI_STATUS
EFIAPI
UnixSnpDriverBindingSupported (
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 This Protocol instance pointer.
@param ControllerHandle Handle of device to bind driver to
@param RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@retval EFI_SUCCESS Always succeeds.
**/
EFI_STATUS
EFIAPI
UnixSnpDriverBindingStart (
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 This Protocol instance pointer.
@param ControllerHandle Handle of device to stop driver on
@param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
children is zero stop the entire bus driver.
@param ChildHandleBuffer List of Child Handles to Stop.
@retval EFI_SUCCESS Always succeeds.
**/
EFI_STATUS
EFIAPI
UnixSnpDriverBindingStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
);
#endif // _UNIX_SNP_H_
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