sxa_socket.h

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/*
 * Copyright (c) 2010-2012 Digi International Inc.,
 * All rights not expressly granted are reserved.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
 * You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * Digi International Inc. 11001 Bren Road East, Minnetonka, MN 55343
 * =======================================================================
 */

#ifndef __DC__
   #error "This header is only supported on the Rabbit platform with Dynamic C."
#endif

#ifndef __XBEE_SXA_SOCKET
#define __XBEE_SXA_SOCKET

#include "xbee/sxa.h"

XBEE_BEGIN_DECLS

#ifndef SXA_SOCKET_MTU

   #define SXA_SOCKET_MTU  104
#endif

#define SXA_INDEX_TO_IP(index) IPADDR(127,1,0,index)

#define SXA_STREAM_PORT          UINT16_C(61616)
#define SXA_MAX_STREAM_PORT      UINT16_C(61616+255)

#define WPAN_ENDPOINT_DIGI_STREAM   0x66

// Since this is Rabbit-specific, all the following fields are sent
// little-endian over the air.  This struct forms the condensed
// TCP/IP header, which forms the first 6 octets of the WPAN envelope
// payload.
typedef struct _sxa_sock_hdr_t
{
   uint16_t    seqnum;  
   uint16_t    acknum;  
   uint16_t    flags;   
#define _SXA_SOCK_SYN   0x8000
#define _SXA_SOCK_FIN   0x4000
#define _SXA_SOCK_ACK   0x2000
#define _SXA_SOCK_RST   0x1000
#define _SXA_SOCK_FLAG_MASK   0xF000
#define _SXA_SOCK_WIN_MASK    0x0FFF
#define _SXA_SOCK_WIN_RANGE   0x0800
#define _SXA_SOCK_WIN_COUNT   0x07FF
#define _SXA_WIN_LOW_RANGE_SHIFT    1
#define _SXA_WIN_HIGH_RANGE_SHIFT   4
} _sxa_sock_hdr_t;

// Definitions in TCP libraries
struct ll_Gather;
struct LoopbackHandler;

int _sxa_socket_tx_handler(struct LoopbackHandler __far * lh, ll_Gather * g);
int _sxa_socket_rx_handler( const wpan_envelope_t FAR *envelope,
                            wpan_ep_state_t  FAR   *ep_state);
int sxa_socket_init(void);

#define SXA_SOCKET_ENDPOINT { \
        WPAN_ENDPOINT_DIGI_STREAM,  \
        WPAN_PROFILE_DIGI,          \
        _sxa_socket_rx_handler,     \
        NULL,                       \
        0x0000,                     \
        0x00,                       \
        NULL }

XBEE_END_DECLS

#use "xbee_sxa_socket.c"


#endif      // __XBEE_SXA_SOCKET