Hamlib/rft/rft.c

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2.4 KiB
C
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/*
* Hamlib RFT backend - main file
* Copyright (c) 2003 by Thomas B. Ruecker
*
* $Id: rft.c,v 1.3 2006-10-07 18:48:34 csete Exp $
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program 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 Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h> /* String function definitions */
#include <unistd.h> /* UNIX standard function definitions */
#include <math.h>
#include "hamlib/rig.h"
#include "serial.h"
#include "misc.h"
#include "register.h"
#include "rft.h"
#define BUFSZ 64
#define CR "\x0d"
#define EOM CR
/*
* rft_transaction
* We assume that rig!=NULL, rig->state!= NULL, data!=NULL, data_len!=NULL
*/
int rft_transaction(RIG *rig, const char *cmd, int cmd_len, char *data, int *data_len)
{
int retval;
struct rig_state *rs;
rs = &rig->state;
serial_flush(&rs->rigport);
retval = write_block(&rs->rigport, cmd, cmd_len);
if (retval != RIG_OK)
return retval;
/* no data expected, TODO: flush input? */
if (!data || !data_len)
return 0;
retval = read_string(&rs->rigport, data, BUFSZ, CR, 1);
if (retval == -RIG_ETIMEOUT)
retval = 0;
if (retval < 0)
return retval;
*data_len = retval;
return RIG_OK;
}
/*
* rft_set_freq
* Assumes rig!=NULL
*/
int rft_set_freq(RIG *rig, vfo_t vfo, freq_t freq)
{
char freqbuf[16], ackbuf[16];
int freq_len, ack_len, retval;
/*
*/
freq_len = sprintf(freqbuf,"FRQ%f" EOM, (float)freq/1000);
retval = rft_transaction(rig, freqbuf, freq_len, ackbuf, &ack_len);
return retval;
}
/*
* initrigs_rft is called by rig_backend_load
*/
DECLARE_INITRIG_BACKEND(rft)
{
rig_debug(RIG_DEBUG_VERBOSE, "rft: _init called\n");
rig_register(&ekd500_caps);
return RIG_OK;
}