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enc28j60_udp.h

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00001 /*******************************************************************************
00002    enc28j60_udp.h: Transportní vrstva modelu TCP/IP, protokol UDP
00003    Copyright (C) 2010 Brno University of Technology,
00004                       Faculty of Information Technology
00005    Author(s): Martin Musil <xmusil34 AT fit.vutbr.cz>
00006 
00007    LICENSE TERMS
00008 
00009    Redistribution and use in source and binary forms, with or without
00010    modification, are permitted provided that the following conditions
00011    are met:
00012    1. Redistributions of source code must retain the above copyright
00013       notice, this list of conditions and the following disclaimer.
00014    2. Redistributions in binary form must reproduce the above copyright
00015       notice, this list of conditions and the following disclaimer in
00016       the documentation and/or other materials provided with the
00017       distribution.
00018    3. All advertising materials mentioning features or use of this software
00019       or firmware must display the following acknowledgement:
00020 
00021         This product includes software developed by the University of
00022         Technology, Faculty of Information Technology, Brno and its
00023         contributors.
00024 
00025    4. Neither the name of the Company nor the names of its contributors
00026       may be used to endorse or promote products derived from this
00027       software without specific prior written permission.
00028 
00029    This software or firmware is provided ``as is'', and any express or implied
00030    warranties, including, but not limited to, the implied warranties of
00031    merchantability and fitness for a particular purpose are disclaimed.
00032    In no event shall the company or contributors be liable for any
00033    direct, indirect, incidental, special, exemplary, or consequential
00034    damages (including, but not limited to, procurement of substitute
00035    goods or services; loss of use, data, or profits; or business
00036    interruption) however caused and on any theory of liability, whether
00037    in contract, strict liability, or tort (including negligence or
00038    otherwise) arising in any way out of the use of this software, even
00039    if advised of the possibility of such damage.
00040 
00041    $Id$
00042 
00043 *******************************************************************************/ 
00044 
00050 #ifndef _ENC28J60_UDP_
00051 #define _ENC28J60_UDP_
00052 
00053 #include "enc28j60_ip.h"
00054 
00055 
00056 #define UDP_HEADER_LEN 8        
00057 
00058 
00062 struct udp_h{
00063         unsigned int src_port;          
00064         unsigned int dest_port;         
00065         unsigned int length;            
00066         unsigned int checksum;          
00067 };
00068 
00069 
00070 
00071 
00072 #define SOCKET_COUNT 6  
00073 
00075 #define UDP_APP_HANDLER(x) void (x)(struct ip_h *ip_header, struct udp_h *udp_header)
00076 
00085 struct udp_socket{
00086         unsigned int port;                                      
00087         UDP_APP_HANDLER(*app_handler);          
00088 };
00089 
00094 void udp_recv(struct ip_h* ip_header);
00095 
00109 char udp_send(unsigned int dest_port,unsigned int src_port, unsigned long ip);
00110 
00121 unsigned int udp_checksum(unsigned long dest_ip,int length);
00122 
00134 unsigned int udp_bind(unsigned int port, void* handler);
00135 
00140 void udp_unbind(unsigned int port);
00141 
00142 #endif /*_ENC28J60_UDP_*/