kopia lustrzana https://github.com/Hamlib/Hamlib
218 wiersze
4.7 KiB
C
218 wiersze
4.7 KiB
C
/*
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* Hamlib Kachina backend - main file
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* Copyright (c) 2001-2003 by Stephane Fillod
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*
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* $Id: kachina.c,v 1.6 2003-04-16 22:30:40 fillods Exp $
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*
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* This library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Library General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdlib.h>
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#include <string.h> /* String function definitions */
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#include <unistd.h> /* UNIX standard function definitions */
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#include <math.h>
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#include "hamlib/rig.h"
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#include "serial.h"
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#include "misc.h"
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#include "cal.h"
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#include "register.h"
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#include "kachina.h"
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/*
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* protocol format
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*/
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#define STX 0x02
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#define ETX 0x03
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#define GDCMD 0xff
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#define ERRCMD 0xfe
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/*
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* modes in use by the "M" command
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*/
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#define M_AM 0x01
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#define M_CW 0x02
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#define M_FM 0x03
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#define M_USB 0x04
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#define M_LSB 0x05
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#define DDS_CONST 2.2369621333
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#define DDS_BASE 75000000
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/* uppermost 2 bits of the high byte
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* designating the antenna port in DDS calculation
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*/
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#define PORT_AB 0x00
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#define PORT_A 0x40
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#define PORT_B 0x80
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#define PORT_BA 0xc0
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/*
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* kachina_transaction
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* We assume that rig!=NULL, rig->state!= NULL
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* Otherwise, you'll get a nice seg fault. You've been warned!
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* TODO: error case handling
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*/
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int kachina_transaction(RIG *rig, unsigned char cmd1, unsigned char cmd2)
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{
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int count, retval;
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struct rig_state *rs;
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unsigned char buf4[4];
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rs = &rig->state;
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buf4[0] = STX;
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buf4[1] = cmd1;
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buf4[2] = cmd2;
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buf4[3] = ETX;
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serial_flush(&rs->rigport);
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retval = write_block(&rs->rigport, buf4, 4);
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if (retval != RIG_OK)
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return retval;
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count = read_string(&rs->rigport, buf4, 1, "", 0);
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if (count != 1)
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return count;
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return (buf4[0]==GDCMD) ? RIG_OK : -RIG_EPROTO;
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}
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int kachina_trans_n(RIG *rig, unsigned char cmd1, const char *data, int data_len)
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{
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int cmd_len, count, retval;
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struct rig_state *rs;
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unsigned char buf[16];
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rs = &rig->state;
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buf[0] = STX;
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buf[1] = cmd1;
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memcpy(buf+2, data, data_len);
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buf[data_len+2] = ETX;
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cmd_len = data_len+3;
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serial_flush(&rs->rigport);
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retval = write_block(&rs->rigport, buf, cmd_len);
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if (retval != RIG_OK)
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return retval;
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count = read_string(&rs->rigport, buf, 1, "", 0);
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if (count != 1)
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return count;
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return (buf[0]==GDCMD) ? RIG_OK : -RIG_EPROTO;
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}
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/*
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* convert a frequency in Hz in the range of 30kHz to 30MHz
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* to DDS value, as expected by the Kachina.
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*/
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void inline freq2dds(freq_t freq, int ant_port, unsigned char fbuf[4])
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{
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double dds;
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unsigned long dds_ulong;
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dds = DDS_CONST * ( DDS_BASE + freq);
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dds_ulong = (unsigned long)dds;
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/*
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* byte 0 transferred first,
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* dds is big endian format
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*/
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fbuf[0] = ant_port | ((dds_ulong>>24) & 0x3f);
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fbuf[1] = (dds_ulong>>16) & 0xff;
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fbuf[2] = (dds_ulong>>8) & 0xff;
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fbuf[3] = dds_ulong & 0xff;
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}
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/*
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* kachina_set_freq
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* Assumes rig!=NULL
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*/
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int kachina_set_freq(RIG *rig, vfo_t vfo, freq_t freq)
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{
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int retval;
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unsigned char freqbuf[4];
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freq2dds(freq, PORT_A, freqbuf);
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/* receive frequency */
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retval = kachina_trans_n(rig, 'R', freqbuf, 4);
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if (retval != RIG_OK)
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return retval;
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/* transmit frequency */
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retval = kachina_trans_n(rig, 'T', freqbuf, 4);
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if (retval != RIG_OK)
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return retval;
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return RIG_OK;
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}
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/*
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* kachina_set_mode
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* Assumes rig!=NULL
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*
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* FIXME: pbwidth handling
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*/
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int kachina_set_mode(RIG *rig, vfo_t vfo, rmode_t mode, pbwidth_t width)
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{
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int retval;
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unsigned char k_mode;
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switch (mode) {
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case RIG_MODE_CW: k_mode = M_CW; break;
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case RIG_MODE_USB: k_mode = M_USB; break;
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case RIG_MODE_LSB: k_mode = M_LSB; break;
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case RIG_MODE_FM: k_mode = M_FM; break;
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case RIG_MODE_AM: k_mode = M_AM; break;
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default:
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rig_debug(RIG_DEBUG_ERR,
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"kachina_set_mode: unsupported mode %d\n",
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mode);
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return -RIG_EINVAL;
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}
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retval = kachina_transaction (rig, 'M', k_mode);
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if (retval != RIG_OK)
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return retval;
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return retval;
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}
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/*
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* initrigs_kachina is called by rig_backend_load
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*/
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DECLARE_INITRIG_BACKEND(kachina)
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{
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rig_debug(RIG_DEBUG_VERBOSE, "kachina: _init called\n");
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rig_register(&k505dsp_caps);
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return RIG_OK;
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}
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