audk/NetworkPkg/TcpDxe/TcpDriver.h

/** @file
  The prototype of driver binding and service binding protocol for TCP driver.

  Copyright (c) 2009 - 2011, 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 _TCP_DRIVER_H_
#define _TCP_DRIVER_H_

#define TCP_DRIVER_SIGNATURE   SIGNATURE_32 ('T', 'C', 'P', 'D')

#define TCP_PORT_KNOWN         1024
#define TCP_PORT_USER_RESERVED 65535

typedef struct _TCP_HEARTBEAT_TIMER {
  EFI_EVENT  TimerEvent;
  INTN       RefCnt;
} TCP_HEARTBEAT_TIMER;

typedef struct _TCP_SERVICE_DATA {
  UINT32                        Signature;
  EFI_HANDLE                    ControllerHandle;
  EFI_HANDLE                    DriverBindingHandle;
  UINT8                         IpVersion;
  IP_IO                         *IpIo;
  EFI_SERVICE_BINDING_PROTOCOL  ServiceBinding;
  CHAR16                        *MacString;
  LIST_ENTRY                    SocketList;
} TCP_SERVICE_DATA;

typedef struct _TCP_PROTO_DATA {
  TCP_SERVICE_DATA  *TcpService;
  TCP_CB            *TcpPcb;
} TCP_PROTO_DATA;

#define TCP_SERVICE_FROM_THIS(a) \
  CR ( \
  (a), \
  TCP_SERVICE_DATA, \
  ServiceBinding, \
  TCP_DRIVER_SIGNATURE \
  )

//
// Function prototype for the driver's entry point
//

/**
  The entry point for Tcp driver, used to install Tcp driver on the ImageHandle.

  @param[in]  ImageHandle   The firmware allocated handle for this driver image.
  @param[in]  SystemTable   Pointer to the EFI system table.

  @retval EFI_SUCCESS   The driver loaded.
  @retval other         The driver did not load.

**/
EFI_STATUS
EFIAPI
TcpDriverEntryPoint (
  IN EFI_HANDLE        ImageHandle,
  IN EFI_SYSTEM_TABLE  *SystemTable
  );

//
// Function prototypes for the Driver Binding Protocol
//

/**
  Test to see if this driver supports ControllerHandle.

  @param[in]  This                Protocol instance pointer.
  @param[in]  ControllerHandle    Handle of the device to test.
  @param[in]  RemainingDevicePath Optional parameter use to pick a specific
                                  child device to start.

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

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

/**
  Start this driver on ControllerHandle.

  @param[in]  This                   Protocol instance pointer.
  @param[in]  ControllerHandle       Handle of device to bind driver to.
  @param[in]  RemainingDevicePath    Optional parameter use to pick a specific child
                                     device to start.

  @retval EFI_SUCCESS            The driver was added to ControllerHandle.
  @retval EFI_OUT_OF_RESOURCES   There are not enough resources to start the
                                 driver.
  @retval other                  The driver cannot be added to ControllerHandle.

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

/**
  Stop this driver on ControllerHandle.

  @param[in]  This              A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
  @param[in]  ControllerHandle  A handle to the device being stopped. The handle must
                                support a bus specific I/O protocol for the driver
                                to use to stop the device.
  @param[in]  NumberOfChildren  The number of child device handles in ChildHandleBuffer.
  @param[in]  ChildHandleBuffer An array of child handles to be freed. May be NULL
                                if NumberOfChildren is 0.

  @retval EFI_SUCCESS           The device was stopped.
  @retval EFI_DEVICE_ERROR      The device could not be stopped due to a device error.

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

/**
  The Callback funtion called after the TCP socket is created.

  @param[in]  This            Pointer to the socket just created.
  @param[in]  Context         The context of the socket.

  @retval EFI_SUCCESS         This protocol is installed successfully.
  @retval other               An error occured.

**/
EFI_STATUS
TcpCreateSocketCallback (
  IN SOCKET  *This,
  IN VOID    *Context
  );

/**
  The callback function called before the TCP socket is to be destroyed.

  @param[in]  This                   The TCP socket to be destroyed.
  @param[in]  Context                The context of the socket.

**/
VOID
TcpDestroySocketCallback (
  IN SOCKET  *This,
  IN VOID    *Context
  );

//
// Function ptototypes for the ServiceBinding Prococol
//

/**
  Creates a child handle with a set of TCP services.

  The CreateChild() function installs a protocol on ChildHandle.
  If ChildHandle is a pointer to NULL, then a new handle is created and returned in ChildHandle.
  If ChildHandle is not a pointer to NULL, then the protocol installs on the existing ChildHandle.

  @param[in]      This          Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance.
  @param[in, out] ChildHandle   Pointer to the handle of the child to create.
                                If it is NULL, then a new handle is created.
                                If it is a pointer to an existing UEFI handle,
                                then the protocol is added to the existing UEFI handle.

  @retval EFI_SUCCES            The protocol was added to ChildHandle.
  @retval EFI_INVALID_PARAMETER ChildHandle is NULL.
  @retval EFI_OUT_OF_RESOURCES  There are not enough resources available to create
                                the child.
  @retval other                 The child handle was not created.

**/
EFI_STATUS
EFIAPI
TcpServiceBindingCreateChild (
  IN     EFI_SERVICE_BINDING_PROTOCOL  *This,
  IN OUT EFI_HANDLE                    *ChildHandle
  );

/**
  Destroys a child handle with a set of TCP services.

  The DestroyChild() function does the opposite of CreateChild(). It removes a protocol
  that was installed by CreateChild() from ChildHandle. If the removed protocol is the
  last protocol on ChildHandle, then ChildHandle is destroyed.

  @param  This        Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance.
  @param  ChildHandle Handle of the child to destroy.

  @retval EFI_SUCCES            The protocol was removed from ChildHandle.
  @retval EFI_UNSUPPORTED       ChildHandle does not support the protocol that is being removed.
  @retval EFI_INVALID_PARAMETER The child handle is NULL.
  @retval EFI_ACCESS_DENIED     The protocol could not be removed from the ChildHandle
                                because its services are being used.
  @retval other                 The child handle was not destroyed.

**/
EFI_STATUS
EFIAPI
TcpServiceBindingDestroyChild (
  IN EFI_SERVICE_BINDING_PROTOCOL  *This,
  IN EFI_HANDLE                    ChildHandle
  );

#endif