Add the detailed descriptions for the structure data member in these protocol.

[mirror_edk2.git] / MdePkg / Include / Protocol / PxeBaseCodeCallBack.h

/** @file\r
  EFI PXE Base Code CallBack Protocol is as defined in UEFI specification.\r
  It is invoked when the PXE Base Code Protocol is about to transmit, has received, \r
  or is waiting to receive a packet.\r
\r
  Copyright (c) 2006 - 2008, Intel Corporation                                                         \r
  All rights reserved. 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 _PXE_BASE_CODE_CALLBACK_H_\r
#define _PXE_BASE_CODE_CALLBACK_H_\r
\r
///\r
/// Call Back Definitions\r
///\r
#define EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL_GUID \\r
  { \\r
    0x245dca21, 0xfb7b, 0x11d3, {0x8f, 0x01, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b } \\r
  }\r
\r
///\r
/// UEFI Revision Number Definition\r
///\r
#define EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL_REVISION 0x00010000\r
\r
///\r
/// EFI 1.1 Revision Number defintion\r
///\r
#define EFI_PXE_BASE_CODE_CALLBACK_INTERFACE_REVISION  \\r
        EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL_REVISION\r
\r
///\r
/// UEFI Protocol name\r
///\r
typedef struct _EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL  EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL;\r
\r
///\r
/// EFI1.1 Protocol name\r
/// \r
typedef EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL   EFI_PXE_BASE_CODE_CALLBACK;\r
\r
///\r
/// Event type list for PXE Base Code Protocol function\r
///\r
typedef enum {\r
  EFI_PXE_BASE_CODE_FUNCTION_FIRST,\r
  EFI_PXE_BASE_CODE_FUNCTION_DHCP,\r
  EFI_PXE_BASE_CODE_FUNCTION_DISCOVER,\r
  EFI_PXE_BASE_CODE_FUNCTION_MTFTP,\r
  EFI_PXE_BASE_CODE_FUNCTION_UDP_WRITE,\r
  EFI_PXE_BASE_CODE_FUNCTION_UDP_READ,\r
  EFI_PXE_BASE_CODE_FUNCTION_ARP,\r
  EFI_PXE_BASE_CODE_FUNCTION_IGMP,\r
  EFI_PXE_BASE_CODE_PXE_FUNCTION_LAST\r
} EFI_PXE_BASE_CODE_FUNCTION;\r
\r
///\r
/// Callback status type\r
///\r
typedef enum {\r
  EFI_PXE_BASE_CODE_CALLBACK_STATUS_FIRST,\r
  EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE,\r
  EFI_PXE_BASE_CODE_CALLBACK_STATUS_ABORT,\r
  EFI_PXE_BASE_CODE_CALLBACK_STATUS_LAST\r
} EFI_PXE_BASE_CODE_CALLBACK_STATUS;\r
\r
/**                                                                 \r
  Callback function that is invoked when the PXE Base Code Protocol is about to transmit, has\r
  received, or is waiting to receive a packet.                                                 \r
  \r
  @param  This                  Pointer to the EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL instance.\r
  @param  Function              The PXE Base Code Protocol function that is waiting for an event.                                                              \r
  @param  Received              TRUE if the callback is being invoked due to a receive event. FALSE if\r
                                the callback is being invoked due to a transmit event.                \r
  @param  PacketLen             The length, in bytes, of Packet. This field will have a value of zero if\r
                                this is a wait for receive event.                                       \r
  @param  Packet                If Received is TRUE, a pointer to the packet that was just received;\r
                                otherwise a pointer to the packet that is about to be transmitted.  \r
                                  \r
  @retval EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE if Function specifies a continue operation    \r
  @retval EFI_PXE_BASE_CODE_CALLBACK_STATUS_ABORT    if Function specifies an abort operation\r
                                   \r
**/\r
typedef \r
EFI_PXE_BASE_CODE_CALLBACK_STATUS \r
(EFIAPI *EFI_PXE_CALLBACK)(\r
  IN EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL  *This,\r
  IN EFI_PXE_BASE_CODE_FUNCTION           Function,\r
  IN BOOLEAN                              Received,\r
  IN UINT32                               PacketLen,\r
  IN EFI_PXE_BASE_CODE_PACKET             *Packet     OPTIONAL\r
  );\r
\r
///\r
/// Protocol that is invoked when the PXE Base Code Protocol is about \r
/// to transmit, has received, or is waiting to receive a packet.\r
///\r
struct _EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL {\r
  ///\r
  ///  The revision of the EFI_PXE_BASE_CODE_PROTOCOL. All future revisions must \r
  ///  be backwards compatible. If a future version is not backwards compatible \r
  ///  it is not the same GUID.\r
  ///\r
  UINT64            Revision;\r
  EFI_PXE_CALLBACK  Callback;\r
};\r
\r
extern EFI_GUID gEfiPxeBaseCodeCallbackProtocolGuid;\r
\r
#endif \r
\r