////////////////////////////////////////////////////////////////////////////////
// Copyright (c) 2004 Xilinx, Inc.  All rights reserved.
//
// Xilinx, Inc.
// XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS" AS A
// COURTESY TO YOU.  BY PROVIDING THIS DESIGN, CODE, OR INFORMATION AS
// ONE POSSIBLE   IMPLEMENTATION OF THIS FEATURE, APPLICATION OR
// STANDARD, XILINX IS MAKING NO REPRESENTATION THAT THIS IMPLEMENTATION
// IS FREE FROM ANY CLAIMS OF INFRINGEMENT, AND YOU ARE RESPONSIBLE
// FOR OBTAINING ANY RIGHTS YOU MAY REQUIRE FOR YOUR IMPLEMENTATION.
// XILINX EXPRESSLY DISCLAIMS ANY WARRANTY WHATSOEVER WITH RESPECT TO
// THE ADEQUACY OF THE IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO
// ANY WARRANTIES OR REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE
// FROM CLAIMS OF INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS FOR A PARTICULAR PURPOSE.
//
// File   : xilsock.h
// Date   : 2002, March 20.
// Author : Sathya Thammanur
// Company: Xilinx
// Group  : Emerging Software Technologies
//
// Summary:
// Header file for Xilinx internal socket structure definitions
//
// $Id: xilsock.h,v 1.2.8.6 2005/11/15 23:41:10 salindac Exp $
//
////////////////////////////////////////////////////////////////////////////////

////////////////////////////////////////////////////////////////////////////////
// see copyright.txt for Rice University/Mango Communications modifications
////////////////////////////////////////////////////////////////////////////////

#ifndef _XILSOCK_H_
#define _XILSOCK_H_

#ifdef __cplusplus
extern "C" {
#endif

#include <xilnet_eth.h>
#include <xilnet_arp.h>
#include <xilnet_ip.h>
#include <xilnet_udp.h>
#include <xilnet_icmp.h>
#include <xilnet_in.h>
#include <xilnet_socket.h>
#include <string.h>
#include <xil_io.h>

// definitions for connections
#define TRUE                    1
#define FALSE                   0

// Data Link Layer definitions
// Add #if's for PPP header lengths
#define LINK_HDR_LEN            ETH_HDR_LEN
#define LINK_FRAME_LEN          ETH_FRAME_LEN

// #defines for TCP communication
#define XILSOCK_NEW_CONN        0x1
#define XILSOCK_SYNACK_RCVD     0x2
#define XILSOCK_TCP_DATA        0x4
#define XILSOCK_TCP_ACK         0x8
#define XILSOCK_EXISTING_CONN   0x10
#define XILSOCK_CLOSE_CONN      0x20


/* Structures for xilsock sockets */

// msg structure
struct xilsock_buf {
   unsigned char *buf;
   int size;
};

// internal socket structure
struct xilsock_socket {
   int type;
   int domain;
   int proto;
   // status of socket
   unsigned char listen:1;
   unsigned char bound:1;
   unsigned char accept:1;
   unsigned char connect:1;
   unsigned char free:1;
   unsigned char closing:1;
   unsigned char closed:1;
   union {
      struct xilnet_tcp_conn *tcp_conn;
      struct xilnet_udp_conn *udp_conn;
   } conn;
   int *if_addr;                 // interface base addr
   struct xilsock_buf recvbuf;     // structure for recv/send msgs
};


/* Functions of xilsock sockets */

extern int            xilsock_init(unsigned int);
extern void           xilsock_rel_socket(int, unsigned int);
extern int            xilsock_socket(int, int, int, unsigned int);
int                   xilsock_bind(int sd, struct sockaddr* addr, int addrlen, void (*callback) (), unsigned int);
extern int            xilsock_listen(int, int, unsigned int);
extern int            xilsock_recv(int, unsigned char*, unsigned int, unsigned int);
extern int            xilsock_recvfrom(int, unsigned char*, unsigned int, struct sockaddr*, unsigned int *, unsigned int);
extern int            xilsock_sendto(int, unsigned char*, unsigned int, struct sockaddr*, unsigned int);
extern int            xilsock_send(int, unsigned char*, unsigned int, unsigned int);
extern void           xilsock_close(int, unsigned int);

/*
 * TCP/IP functions Prototype
 */

// Ethernet Device functions
extern int            xilnet_eth_device_init(unsigned int, unsigned int, unsigned char *, unsigned char *);
extern int            xilnet_eth_device_start(unsigned int);
extern int            xilnet_eth_set_inf_hw_info( unsigned int, unsigned char *, unsigned char *);
extern int            xilnet_eth_get_inf_ip_addr( unsigned int, unsigned char *);
extern int            xilnet_eth_get_inf_hw_addr( unsigned int, unsigned char *);


// Ethernet functions
extern unsigned int   xilnet_eth_recv_frame(unsigned int);
extern int            xilnet_eth_send_frame(unsigned char *, int, unsigned char*, void*, unsigned short, unsigned int);
extern void           xilnet_eth_update_hw_tbl(unsigned char *, int, unsigned int);
extern void           xilnet_eth_add_hw_tbl_entry(unsigned char *, unsigned char *, unsigned int);
extern int            xilnet_eth_get_hw_addr(unsigned char *, unsigned int);
extern void           xilnet_eth_init_hw_addr_tbl(unsigned int);
extern int            xilnet_eth_find_old_entry(unsigned int);

// ARP functions
extern int            xilnet_arp(unsigned char*, int, unsigned int);
extern void           xilnet_arp_reply(unsigned char*, int, unsigned int);

// IP functions
extern void           xilnet_ip_init(unsigned char*, unsigned int);
extern int            xilnet_ip(unsigned char*, int, unsigned int);
extern void           xilnet_ip_header(unsigned char*, int, int, unsigned char*, unsigned int);
extern unsigned short xilnet_ip_calc_chksum(unsigned char*, int);

// UDP/ICMP functions
extern int            xilnet_udp(unsigned char*, int, unsigned int);
extern void           xilnet_udp_header(struct xilnet_udp_conn*, unsigned char*, int, unsigned int);
extern unsigned short xilnet_udp_tcp_calc_chksum(unsigned char*, int, unsigned char*, unsigned char*, unsigned short);
extern void           xilnet_udp_init_conns(unsigned int);
int                   xilnet_udp_open_conn(unsigned short port,void (*callback) (), unsigned int);
extern int            xilnet_udp_close_conn(struct xilnet_udp_conn*, unsigned int);
extern void           xilnet_icmp_echo_reply(unsigned char *, unsigned int, unsigned int);
extern int            xilnet_icmp(unsigned char *, int, unsigned int);



#ifdef __cplusplus
}
#endif

#endif /* _XILSOCK_H_ */