Hamlib/kachina/kachina.c

309 wiersze
6.7 KiB
C

/*
* Hamlib Kachina backend - main file
* Copyright (c) 2001-2004 by Stephane Fillod
*
*
* 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 2.1 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#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 "cal.h"
#include "register.h"
#include "kachina.h"
/*
* protocol format
*/
#define STX 0x02
#define ETX 0x03
#define GDCMD 0xff
#define ERRCMD 0xfe
/*
* modes in use by the "M" command
*/
#define M_AM 0x01
#define M_CW 0x02
#define M_FM 0x03
#define M_USB 0x04
#define M_LSB 0x05
#define DDS_CONST 2.2369621333
#define DDS_BASE 75000000
/* uppermost 2 bits of the high byte
* designating the antenna port in DDS calculation
*/
#define PORT_AB 0x00
#define PORT_A 0x40
#define PORT_B 0x80
#define PORT_BA 0xc0
/*
* kachina_transaction
* We assume that rig!=NULL, rig->state!= NULL
* Otherwise, you'll get a nice seg fault. You've been warned!
* TODO: error case handling
*/
static int kachina_transaction(RIG *rig, unsigned char cmd1, unsigned char cmd2)
{
int count, retval;
struct rig_state *rs;
unsigned char buf4[4];
rs = &rig->state;
buf4[0] = STX;
buf4[1] = cmd1;
buf4[2] = cmd2;
buf4[3] = ETX;
serial_flush(&rs->rigport);
retval = write_block(&rs->rigport, (char *) buf4, 4);
if (retval != RIG_OK)
{
return retval;
}
count = read_string(&rs->rigport, (char *) buf4, 1, "", 0);
if (count != 1)
{
return count;
}
return (buf4[0] == GDCMD) ? RIG_OK : -RIG_EPROTO;
}
static int kachina_trans_n(RIG *rig, unsigned char cmd1, const char *data,
int data_len)
{
int cmd_len, count, retval;
struct rig_state *rs;
unsigned char buf[16];
rs = &rig->state;
buf[0] = STX;
buf[1] = cmd1;
memcpy(buf + 2, data, data_len);
buf[data_len + 2] = ETX;
cmd_len = data_len + 3;
serial_flush(&rs->rigport);
retval = write_block(&rs->rigport, (char *) buf, cmd_len);
if (retval != RIG_OK)
{
return retval;
}
count = read_string(&rs->rigport, (char *) buf, 1, "", 0);
if (count != 1)
{
return count;
}
return (buf[0] == GDCMD) ? RIG_OK : -RIG_EPROTO;
}
/*
* convert a frequency in Hz in the range of 30kHz to 30MHz
* to DDS value, as expected by the Kachina.
*/
static void freq2dds(freq_t freq, int ant_port, unsigned char fbuf[4])
{
double dds;
unsigned long dds_ulong;
dds = DDS_CONST * (DDS_BASE + freq);
dds_ulong = (unsigned long)dds;
/*
* byte 0 transferred first,
* dds is big endian format
*/
fbuf[0] = ant_port | ((dds_ulong >> 24) & 0x3f);
fbuf[1] = (dds_ulong >> 16) & 0xff;
fbuf[2] = (dds_ulong >> 8) & 0xff;
fbuf[3] = dds_ulong & 0xff;
}
/*
* kachina_set_freq
* Assumes rig!=NULL
*/
int kachina_set_freq(RIG *rig, vfo_t vfo, freq_t freq)
{
int retval;
unsigned char freqbuf[4];
freq2dds(freq, PORT_A, freqbuf);
/* receive frequency */
retval = kachina_trans_n(rig, 'R', (char *) freqbuf, 4);
if (retval != RIG_OK)
{
return retval;
}
/* transmit frequency */
retval = kachina_trans_n(rig, 'T', (char *) freqbuf, 4);
if (retval != RIG_OK)
{
return retval;
}
return RIG_OK;
}
/*
* kachina_set_mode
* Assumes rig!=NULL
*
* FIXME: pbwidth handling
*/
int kachina_set_mode(RIG *rig, vfo_t vfo, rmode_t mode, pbwidth_t width)
{
int retval;
unsigned char k_mode;
switch (mode)
{
case RIG_MODE_CW: k_mode = M_CW; break;
case RIG_MODE_USB: k_mode = M_USB; break;
case RIG_MODE_LSB: k_mode = M_LSB; break;
case RIG_MODE_FM: k_mode = M_FM; break;
case RIG_MODE_AM: k_mode = M_AM; break;
default:
rig_debug(RIG_DEBUG_ERR,
"%s: unsupported mode %s\n",
__func__, rig_strrmode(mode));
return -RIG_EINVAL;
}
retval = kachina_transaction(rig, 'M', k_mode);
if (retval != RIG_OK)
{
return retval;
}
return retval;
}
/*
* kachina_get_level
* Assumes rig!=NULL
*/
int kachina_get_level(RIG *rig, vfo_t vfo, setting_t level, value_t *val)
{
int i, count;
unsigned char buf[32];
static const char rcv_signal_range[128] =
{
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f,
0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57,
0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f,
0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f
};
/* so far, only RAWSTR supported! */
if (level != RIG_LEVEL_RAWSTR)
{
return -RIG_ENIMPL;
}
/* telemetry sent to the PC automatically at a 50msec rate */
serial_flush(&rig->state.rigport);
count = read_string(&rig->state.rigport, (char *) buf, 31, rcv_signal_range,
128);
if (count < 1)
{
return count;
}
for (i = 0; i < count; i++)
{
if (buf[i] <= 0x7f)
{
break;
}
}
val->i = buf[i];
return RIG_OK;
}
/*
* initrigs_kachina is called by rig_backend_load
*/
DECLARE_INITRIG_BACKEND(kachina)
{
rig_debug(RIG_DEBUG_VERBOSE, "%s: _init called\n", __func__);
rig_register(&k505dsp_caps);
return RIG_OK;
}