kisstnc_lib.h

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/********************************************************************
* Copyright (C) 2015 by Interstel Technologies, Inc.
*   and Hawaii Space Flight Laboratory.
*
* This file is part of the COSMOS/core that is the central
* module for COSMOS. For more information on COSMOS go to
* <http://cosmos-project.com>
*
* The COSMOS/core software is licenced under the
* GNU Lesser General Public License (LGPL) version 3 licence.
*
* You should have received a copy of the
* GNU Lesser General Public License
* If not, go to <http://www.gnu.org/licenses/>
*
* COSMOS/core is free software: you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* COSMOS/core is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
* Lesser General Public License for more details.
*
* Refer to the "licences" folder for further information on the
* condititons and terms to use this software.
********************************************************************/

#ifndef _KISSTNCLIB_H
#define _KISSTNCLIB_H 1


#include "support/configCosmos.h"

#include <stdio.h>
#include <errno.h>

#include "device/general/cssl_lib.h"
#include "support/cosmos-errno.h"

#define KISSTNC_MTU 254
#define KISSTNC_PAYLOAD_SIZE KISSTNC_MTU

//#define KISSTNC_PAYLOAD_SIZE 255
#define KISSTNC_FULL_SIZE (KISSTNC_PAYLOAD_SIZE+19)
#define AX25_FLAG 0x7E
#define AX25_NOLAYER3 0xF0

#define KISSTNC_ID 1
#define KISSTNC_BAUD 19200
#define KISSTNC_BITS 8
#define KISSTNC_PARITY 0
#define KISSTNC_STOPBITS 1

typedef struct
{
    union
    {
        struct
        {
            union
            {
                struct
                {
                    uint8_t flag;
                    char destination_address[7];
                    char source_address[7];
                    uint8_t control;
                    uint8_t protocol_id;
                } header;
                uint8_t preamble[17];
            };
            uint8_t payload[KISSTNC_PAYLOAD_SIZE+2];
        } part;
        uint8_t full[KISSTNC_FULL_SIZE];
    };
    uint16_t size;
} kisstnc_frame;

typedef struct
{
    cssl_t *serial;
    kisstnc_frame frame;
    uint8_t flag;
} kisstnc_handle;

int32_t kisstnc_connect(char *dev, kisstnc_handle *handle, uint8_t flag);
int32_t kisstnc_disconnect(kisstnc_handle *handle);
int32_t kisstnc_recvframe(kisstnc_handle *handle);
int32_t kisstnc_sendframe(kisstnc_handle *handle);
int32_t kisstnc_loadframe(kisstnc_handle *handle, uint8_t *data, uint16_t size);
int32_t kisstnc_loadframe(kisstnc_handle *handle, vector<uint8_t> data);
int32_t kisstnc_unloadframe(kisstnc_handle *handle, uint8_t *data, uint16_t size);
int32_t kisstnc_unloadframe(kisstnc_handle *handle, vector<uint8_t> &data);
uint16_t kisstnc_calc_fcs(uint8_t *data, uint16_t length);
int32_t kisstnc_exitkiss(kisstnc_handle *handle);
int32_t kisstnc_enterkiss(kisstnc_handle *handle);


#endif