Hamlib/sartek/sartek.c

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C
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/*
* Hamlib backend library for the SARtek rotor command set.
*
* sartek.c - (C) Stephane Fillod 2003
*
* $Id: sartek.c,v 1.3 2006-10-07 19:08:46 csete Exp $
*
* This library 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 2 of the License, or (at your option) any later version.
*
* This library 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.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h> /* Standard library definitions */
#include <string.h> /* String function definitions */
#include <unistd.h> /* UNIX standard function definitions */
#include "hamlib/rotator.h"
#include "serial.h"
#include "register.h"
#include "sartek.h"
/* *************************************
*
* Seperate model capabilities
*
* *************************************
*/
/*
* SARtek rotor capabilities
*
* Documentation from:
* http://www.hosenose.com/sartek/ifcspecs.htm
*/
const struct rot_caps sartek_rot_caps = {
.rot_model = ROT_MODEL_SARTEK1,
.model_name = "SARtek-1",
.mfg_name = "SARtek",
.version = "0.2",
.copyright = "LGPL",
.status = RIG_STATUS_UNTESTED,
.rot_type = ROT_TYPE_OTHER,
.port_type = RIG_PORT_SERIAL,
.serial_rate_min = 1200,
.serial_rate_max = 1200,
.serial_data_bits = 8,
.serial_stop_bits = 2,
.serial_parity = RIG_PARITY_NONE,
.serial_handshake = RIG_HANDSHAKE_NONE,
.write_delay = 0,
.post_write_delay = 0,
.timeout = 1000,
.retry = 3,
.min_az = 0,
.max_az = 360,
.min_el = 0,
.max_el = 0,
.priv = NULL, /* priv */
.set_position = sartek_rot_set_position,
.stop = sartek_rot_stop,
};
/* ************************************
*
* API functions
*
* ************************************
*/
/*
* Set position
* SARtek protocol supports azimuth only--elevation is ignored
* Range is converted to an integer string, 0 to 360 degrees
*/
static int sartek_rot_set_position(ROT *rot, azimuth_t azimuth, elevation_t elevation)
{
char cmdstr[8];
int len, err;
rig_debug(RIG_DEBUG_TRACE, "%s called\n", __FUNCTION__);
if (!rot)
return -RIG_EINVAL;
if (azimuth < 0 || azimuth > 360)
return -RIG_EINVAL;
if (azimuth < 2) {
azimuth = 2;
}
else if (azimuth > 358) {
azimuth = 358;
}
len = sprintf(cmdstr, "P%c", (int) ((azimuth * 255) / 360));
err = write_block(&rot->state.rotport, cmdstr, len);
if (err != RIG_OK)
return err;
return RIG_OK;
}
/*
* Stop rotation
*/
static int sartek_rot_stop(ROT *rot)
{
int err;
rig_debug(RIG_DEBUG_TRACE, "%s called\n", __FUNCTION__);
err = write_block(&rot->state.rotport, "P\0", 2);
if (err != RIG_OK)
return err;
return RIG_OK;
}
/*
* Initialize backend
*/
DECLARE_INITROT_BACKEND(sartek)
{
rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);
rot_register(&sartek_rot_caps);
return RIG_OK;
}