Hamlib/kenwood/tmv7.c

/*
 *  Hamlib Kenwood backend - TM-V7 description
 *  Copyright (c) 2004-2010 by Stephane Fillod
 *
 *
 *   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 <stdlib.h>
#include <stdio.h>
#include <string.h>  /* String function definitions */
#include <unistd.h>  /* UNIX standard function definitions */

#include <hamlib/rig.h>
#include "kenwood.h"
#include "th.h"
#include "misc.h"

#if 1
#define RIG_ASSERT(x)	if (!(x)) { rig_debug(RIG_DEBUG_ERR, "Assertion failed on line %i\n",__LINE__); abort(); }
#else
#define RIG_ASSERT(x)
#endif

#define TMV7_FUNC_ALL (\
                       RIG_FUNC_TBURST \
                       )

#define TMV7_LEVEL_ALL (\
			RIG_LEVEL_RAWSTR| \
                        RIG_LEVEL_SQL| \
                        RIG_LEVEL_AF| \
                        RIG_LEVEL_RFPOWER\
			)

#define TMV7_CHANNEL_CAPS \
.freq=1,\
.tx_freq=1,\
.mode=1,\
.tuning_step=1,\
.rptr_shift=1,\
.ctcss_tone=1,\
.ctcss_sql=1,\
.channel_desc=1

#ifndef RIG_TONEMAX
#define RIG_TONEMAX     38
#endif

#define RIG_VFO_A_OP (RIG_OP_UP|RIG_OP_DOWN|RIG_OP_TO_VFO)

#define ACKBUF_LEN 128

static rmode_t tmv7_mode_table[KENWOOD_MODE_TABLE_MAX] = {
    [0] = RIG_MODE_FM,
    [1] = RIG_MODE_AM,
};

static struct kenwood_priv_caps  tmv7_priv_caps  = {
    .cmdtrm =  EOM_TH,   /* Command termination character */
    .mode_table = tmv7_mode_table,
};


/* tmv7 procs */
static int tmv7_decode_event (RIG *rig);
static int tmv7_set_vfo (RIG *rig, vfo_t vfo);
static int tmv7_get_mode (RIG *rig, vfo_t vfo, rmode_t *mode, pbwidth_t *width);
static int tmv7_get_powerstat (RIG *rig, powerstat_t *status);
static int tmv7_get_channel(RIG *rig, channel_t *chan);
static int tmv7_set_channel(RIG *rig, const channel_t *chan);

/*
 * tm-v7 rig capabilities.
 */
const struct rig_caps tmv7_caps = {
.rig_model =  RIG_MODEL_TMV7,
.model_name = "TM-V7",
.mfg_name =  "Kenwood",
.version =  TH_VER,
.copyright =  "LGPL",
.status =  RIG_STATUS_BETA,
.rig_type =  RIG_TYPE_MOBILE,
.ptt_type =  RIG_PTT_RIG,
.dcd_type =  RIG_DCD_RIG,
.port_type =  RIG_PORT_SERIAL,
.serial_rate_min =  9600,
.serial_rate_max =  9600,
.serial_data_bits =  8,
.serial_stop_bits =  1,
.serial_parity =  RIG_PARITY_NONE,
.serial_handshake =  RIG_HANDSHAKE_NONE,
.write_delay =  1,
.post_write_delay =  0,
.timeout =  500,
.retry =  3,

.has_set_func =  TMV7_FUNC_ALL,
.has_get_level =  TMV7_LEVEL_ALL,
.has_set_level =  RIG_LEVEL_SET(TMV7_LEVEL_ALL),
.level_gran = {
	[LVL_RAWSTR] = { .min = { .i = 0 }, .max = { .i = 7 } },
	[LVL_SQL] = { .min = { .i = 0 }, .max = { .i = 32 } },
	[LVL_AF] = { .min = { .i = 0 }, .max = { .i = 32 } },
	[LVL_RFPOWER] = { .min = { .i = 0 }, .max = { .i = 2 } },
},
.parm_gran =  {},
.ctcss_list =  kenwood38_ctcss_list,
.dcs_list =  NULL,
.preamp =   { RIG_DBLST_END, },
.attenuator =   { RIG_DBLST_END, },
.max_rit =  Hz(0),
.max_xit =  Hz(0),
.max_ifshift =  Hz(0),
.vfo_ops =  RIG_VFO_A_OP,
.targetable_vfo =  RIG_TARGETABLE_NONE,
.transceive =  RIG_TRN_RIG,
.bank_qty =   0,
.chan_desc_sz =  6,


.chan_list =  { 
		{  1, 90 , RIG_MTYPE_MEM , {TMV7_CHANNEL_CAPS}},  /* normal MEM VHF */
		{ 101, 190, RIG_MTYPE_MEM , {TMV7_CHANNEL_CAPS}},  /* normal MEM UHF */
		{  201,206, RIG_MTYPE_EDGE , {TMV7_CHANNEL_CAPS}}, /* L MEM */
		{  211,216, RIG_MTYPE_EDGE , {TMV7_CHANNEL_CAPS}}, /* U MEM */
		{  221,222, RIG_MTYPE_CALL , {TMV7_CHANNEL_CAPS}}, /* Call V/U */
		RIG_CHAN_END,
		   },

.rx_range_list1 =  {
        {MHz(118),MHz(174),RIG_MODE_AM | RIG_MODE_FM,-1,-1,RIG_VFO_A},
        {MHz(300),MHz(470),RIG_MODE_FM,-1,-1,RIG_VFO_B},
        RIG_FRNG_END,
  }, /* rx range */

.tx_range_list1 =  {
        {MHz(118),MHz(174), RIG_MODE_FM,W(5),W(50),RIG_VFO_A},
        {MHz(300),MHz(470),RIG_MODE_FM,W(5),W(35),RIG_VFO_B},
        RIG_FRNG_END,
  }, /* tx range */

.rx_range_list2 =  {
        {MHz(118),MHz(174),RIG_MODE_AM | RIG_MODE_FM,-1,-1,RIG_VFO_A},
        {MHz(300),MHz(470),RIG_MODE_FM,-1,-1,RIG_VFO_B},
        RIG_FRNG_END,
  }, /* rx range */

.tx_range_list2 =  {
        {MHz(118),MHz(174), RIG_MODE_FM,W(5),W(50),RIG_VFO_A},
        {MHz(300),MHz(470),RIG_MODE_FM,W(5),W(35),RIG_VFO_B},
        RIG_FRNG_END,
  }, /* tx range */

.tuning_steps =  {
	 {RIG_MODE_FM,kHz(5)},
	 {RIG_MODE_FM,kHz(6.25)},
	 {RIG_MODE_FM,kHz(10)},
	 {RIG_MODE_FM,kHz(12.5)},
	 {RIG_MODE_FM,kHz(15)},
	 {RIG_MODE_FM,kHz(25)},
	 {RIG_MODE_FM,kHz(50)},
	 RIG_TS_END,
	},
        /* mode/filter list, remember: order matters! */
.filters =  {
	RIG_FLT_END,
	},

.str_cal ={ 4, { {0, -60 }, {1, -30,}, {5,0}, {7,20}}}, /* rought guess */

.priv =  (void *)&tmv7_priv_caps,
.rig_init = kenwood_init,
.rig_cleanup = kenwood_cleanup,
.rig_open = kenwood_open,
.rig_close =  NULL,

.set_freq =  th_set_freq,
.get_freq =  th_get_freq,
.get_mode =  tmv7_get_mode,
.set_vfo =  tmv7_set_vfo,
.get_vfo =  th_get_vfo,
.set_mem =  th_set_mem,
.get_mem =  th_get_mem,
.set_channel =  tmv7_set_channel,
.get_channel =  tmv7_get_channel,
.set_trn =  th_set_trn,
.get_trn =  th_get_trn,

.set_func =  th_set_func,
.get_func =  th_get_func,
.get_level = th_get_level,
.set_level = th_set_level,
.get_info =  th_get_info,
.get_powerstat =  tmv7_get_powerstat,
.vfo_op = th_vfo_op,
.set_ptt = th_set_ptt,
.get_dcd=th_get_dcd,
.decode_event =  tmv7_decode_event,
};


/* --------------------------------------------------------------------- */
int tmv7_decode_event (RIG *rig)
{
    char asyncbuf[ACKBUF_LEN];
    int retval;
    size_t asyncbuf_len = ACKBUF_LEN;
    rig_debug(RIG_DEBUG_TRACE, "%s: called\n", __func__);

    retval = kenwood_transaction(rig, NULL, 0, asyncbuf, &asyncbuf_len);
    if (retval != RIG_OK)
        return retval;

    rig_debug(RIG_DEBUG_TRACE, "%s: Decoding message\n", __func__);

    if (asyncbuf[0] == 'B' && asyncbuf[1] == 'U' && asyncbuf[2] == 'F') {

        freq_t freq, offset;
        int step, shift, rev, tone, ctcss, tonefq, ctcssfq;

        retval = sscanf(asyncbuf, "BUF 0,%"SCNfreq",%d,%d,%d,%d,%d,,%d,,%d,%"SCNfreq,
                                  &freq, &step, &shift, &rev, &tone,
                                  &ctcss, &tonefq, &ctcssfq, &offset);
        if (retval != 11) {
            rig_debug(RIG_DEBUG_ERR, "%s: Unexpected BUF message '%s'\n", __func__, asyncbuf);
            return -RIG_ERJCTED;
        }

        rig_debug(RIG_DEBUG_TRACE, "%s: Buffer (freq %"PRIfreq" Hz, mode %d)\n", __func__, freq);

        /* Callback execution */
        if (rig->callbacks.vfo_event) {
            rig->callbacks.vfo_event(rig, RIG_VFO_A, rig->callbacks.vfo_arg);
        }
        if (rig->callbacks.freq_event) {
            rig->callbacks.freq_event(rig, RIG_VFO_A, freq, rig->callbacks.freq_arg);
        }
	/* 
        if (rig->callbacks.mode_event) {
            rig->callbacks.mode_event(rig, RIG_VFO_A, mode, RIG_PASSBAND_NORMAL,
							rig->callbacks.mode_arg);
        }
	*/

    /* --------------------------------------------------------------------- */
    } else if (asyncbuf[0] == 'S' && asyncbuf[1] == 'M') {

        int lev;
        retval = sscanf(asyncbuf, "SM 0,%d", &lev);
        if (retval != 2) {
            rig_debug(RIG_DEBUG_ERR, "%s: Unexpected SM message '%s'\n", __func__, asyncbuf);
            return -RIG_ERJCTED;
        }

        rig_debug(RIG_DEBUG_TRACE, "%s: Signal strength event - signal = %.3f\n", __func__, (float)(lev / 5.0));

        /* Callback execution */
#if STILLHAVETOADDCALLBACK
        if (rig->callbacks.strength_event)
            rig->callbacks.strength_event(rig, RIG_VFO_0,(float)(lev / 5.0),
							rig->callbacks.strength_arg);
#endif

    /* --------------------------------------------------------------------- */
    } else if (asyncbuf[0] == 'B' && asyncbuf[1] == 'Y') {

        int busy;

        retval = sscanf(asyncbuf, "BY 0,%d", &busy);
        if (retval != 2) {
            rig_debug(RIG_DEBUG_ERR, "%s: Unexpected BY message '%s'\n", __func__, asyncbuf);
            return -RIG_ERJCTED;
        }
        rig_debug(RIG_DEBUG_TRACE, "%s: Busy event - status = '%s'\n",
				__func__, (busy == 0) ? "OFF" : "ON" );
        return -RIG_ENIMPL;
        /* This event does not have a callback. */

    /* --------------------------------------------------------------------- */
    } else if (asyncbuf[0] == 'V' && asyncbuf[1] == 'M' && asyncbuf[2] == 'C') {

        vfo_t bandmode;

        retval = sscanf(asyncbuf, "VMC 0,%d", &bandmode);
        if (retval != 1) {
            rig_debug(RIG_DEBUG_ERR, "%s: Unexpected VMC message '%s'\n", __func__, asyncbuf);
            return -RIG_ERJCTED;
        }

        switch (bandmode) {
            case 0:     bandmode = RIG_VFO_VFO;  break;
            case 2:     bandmode = RIG_VFO_MEM;  break;
          /*  case 3:     bandmode = RIG_VFO_CALL; break; */
            default:    bandmode = RIG_VFO_CURR; break; 
        }
        rig_debug(RIG_DEBUG_TRACE, "%s: Mode of Band event -  %d\n", __func__,  bandmode);

        /* TODO: This event does not have a callback! */
        return -RIG_ENIMPL;
    /* --------------------------------------------------------------------- */
    } else {

        rig_debug(RIG_DEBUG_ERR, "%s: Unsupported transceive cmd '%s'\n", __func__, asyncbuf);
        return -RIG_ENIMPL;
    }

    return RIG_OK;
}


/* --------------------------------------------------------------------- */
int tmv7_set_vfo (RIG *rig, vfo_t vfo)
{
    char vfobuf[16], ackbuf[ACKBUF_LEN];
    int retval;
    size_t ack_len;

    rig_debug(RIG_DEBUG_TRACE, "%s: called %d\n", __func__,vfo);

	switch (vfo) {
        case RIG_VFO_A:
        case RIG_VFO_VFO:
            sprintf(vfobuf, "VMC 0,0");
            break;
        case RIG_VFO_B:
            sprintf(vfobuf, "VMC 1,0");
            break;
        case RIG_VFO_MEM:
            sprintf(vfobuf, "BC");
    	    ack_len=ACKBUF_LEN;
	    retval = kenwood_transaction(rig, vfobuf, strlen(vfobuf), ackbuf, &ack_len);
	    if (retval != RIG_OK) return retval;
            sprintf(vfobuf, "VMC %c,2",ackbuf[3]);
            break;
        default:
            rig_debug(RIG_DEBUG_ERR, "%s: Unsupported VFO %d\n", __func__, vfo);
            return -RIG_EVFO;
	}

    ack_len=0;
    retval = kenwood_transaction(rig, vfobuf, strlen(vfobuf), ackbuf, &ack_len);
	if (retval != RIG_OK) {
            rig_debug(RIG_DEBUG_ERR, "%s: bad return \n", __func__);
        return retval;
    }

    rig_debug(RIG_DEBUG_TRACE, "%s: next %d\n", __func__,vfo);
	switch (vfo) {
        case RIG_VFO_A:
        case RIG_VFO_VFO:
            sprintf(vfobuf, "BC 0,0");
            break;
        case RIG_VFO_B:
            sprintf(vfobuf, "BC 1,1");
            break;
        case RIG_VFO_MEM:
            return RIG_OK;
	default:
		return RIG_OK;
	}

    rig_debug(RIG_DEBUG_TRACE, "%s: next2\n", __func__);
    ack_len=0;
    retval = kenwood_transaction(rig, vfobuf, strlen(vfobuf), ackbuf, &ack_len);
	if (retval != RIG_OK)
        return retval;

    return RIG_OK;
}

/* --------------------------------------------------------------------- */
int tmv7_get_mode (RIG *rig, vfo_t vfo, rmode_t *mode, pbwidth_t *width)
{
    char ackbuf[ACKBUF_LEN];
    int retval;
    size_t ack_len=ACKBUF_LEN;
    int step;
    freq_t freq;

    rig_debug(RIG_DEBUG_TRACE, "%s: called\n", __func__);

	switch (vfo) {
      case RIG_VFO_CURR: break;
      case RIG_VFO_A: break;
	  default:
        rig_debug(RIG_DEBUG_ERR, "%s: Unsupported VFO %d\n", __func__, vfo);
		return -RIG_EVFO;
	}

	/* try to guess from frequency */
    retval = kenwood_transaction(rig, "FQ", 3, ackbuf, &ack_len);
        if (retval != RIG_OK)
        return retval;

    sscanf(ackbuf,"FQ %"SCNfreq",%d",&freq,&step);

    if(freq <MHz(137) )  {
		*mode=RIG_MODE_AM;
		*width=kHz(9);
	} else {
		*mode=RIG_MODE_FM;
		*width=kHz(12);
	}

	return RIG_OK;
}

int tmv7_get_powerstat (RIG *rig, powerstat_t *status)
{
/* dummy func to make sgcontrol happy */

	*status=RIG_POWER_ON;
	return RIG_OK;
}


/* --------------------------------------------------------------------- */
int tmv7_get_channel(RIG *rig, channel_t *chan)
{
    char membuf[64],ackbuf[ACKBUF_LEN];
    int retval;
    size_t ack_len;
    freq_t freq;
    char req[16],scf[128];
    int step, shift, rev, tone, ctcss, tonefq, ctcssfq;

    if(chan->channel_num<100)
    	sprintf(req,"MR 0,0,%03d",chan->channel_num);
    else
    if(chan->channel_num<200)
    	sprintf(req,"MR 1,0,%03d",chan->channel_num-100);
    else
    if(chan->channel_num<204) {
    	sprintf(req,"MR 0,0,L%01d",chan->channel_num-200);
        sprintf(chan->channel_desc,"L%01d/V",chan->channel_num-200);
    } else
    if(chan->channel_num<211) {
    	sprintf(req,"MR 1,0,L%01d",chan->channel_num-203);
        sprintf(chan->channel_desc,"L%01d/U",chan->channel_num-203);
    } else
    if(chan->channel_num<214) {
   	sprintf(req,"MR 0,0,U%01d",chan->channel_num-210);
        sprintf(chan->channel_desc,"U%01d/V",chan->channel_num-210);
    } else
    if(chan->channel_num<220) {
   	sprintf(req,"MR 1,0,U%01d",chan->channel_num-213);
        sprintf(chan->channel_desc,"U%01d/U",chan->channel_num-213);
    } else
    if(chan->channel_num<223) {
        if(chan->channel_num==221) {
    		 sprintf(req,"CR 0,0");
		 sprintf(chan->channel_desc,"Call V");
	}
        if(chan->channel_num==222) {
    		 sprintf(req,"CR 1,0");
		 sprintf(chan->channel_desc,"Call U");
	}
    } else
	return -RIG_EINVAL;

    sprintf(membuf,"%s",req);
    ack_len=ACKBUF_LEN;
    retval = kenwood_transaction(rig, membuf, strlen(membuf), ackbuf, &ack_len);
        if (retval != RIG_OK)
        	return retval;

    strcpy(scf,req);
    strcat(scf,",%"SCNfreq",%d,%d,%d,%d,0,%d,%d,000,%d,,0");
    retval = sscanf(ackbuf, scf,
                    &freq, &step, &shift, &rev, &tone,
                    &ctcss, &tonefq, &ctcssfq);

    chan->freq=freq;
    chan->vfo=RIG_VFO_MEM;
    chan->tuning_step=rig->state.tuning_steps[step].ts;
    if(freq <MHz(138) )  {
		chan->mode=RIG_MODE_AM;
    } else {
		chan->mode=RIG_MODE_FM;
    }
    switch(shift) {
	case 0 :
		chan->rptr_shift=RIG_RPT_SHIFT_NONE;
		break;
	case 1 :
		chan->rptr_shift=RIG_RPT_SHIFT_PLUS;
		break;
	case 2 :
		chan->rptr_shift=RIG_RPT_SHIFT_MINUS;
		break;
    }

    if(tone)
	 chan->ctcss_tone=rig->caps->ctcss_list[tonefq==1?0:tonefq-2];
    else
	 chan->ctcss_tone=0;
    if(ctcss)
	 chan->ctcss_sql=rig->caps->ctcss_list[ctcssfq==1?0:ctcssfq-2];
    else
	 chan->ctcss_sql=0;

    chan->tx_freq=RIG_FREQ_NONE;
    if(chan->channel_num<223 && shift==0) {
	req[5]='1';
        sprintf(membuf,"%s",req);
        ack_len=ACKBUF_LEN;
    	retval = kenwood_transaction(rig, membuf, strlen(membuf), ackbuf, &ack_len);
        if (retval == RIG_OK) {
    		strcpy(scf,req);
    		strcat(scf,",%"SCNfreq",%d");
    		retval = sscanf(ackbuf, scf, &freq, &step);
		chan->tx_freq=freq;
	}
    }

    if(chan->channel_num<200) {
	    if(chan->channel_num<100)
	    	sprintf(membuf,"MNA 0,%03d",chan->channel_num);
	    else
	    	sprintf(membuf,"MNA 1,%03d",chan->channel_num-100);
        ack_len=ACKBUF_LEN;
    	retval = kenwood_transaction(rig, membuf, strlen(membuf), ackbuf, &ack_len);
        if (retval != RIG_OK)
        	return retval;
        memcpy(chan->channel_desc,&ackbuf[10],7);
    }

    return RIG_OK;
}
/* --------------------------------------------------------------------- */
int tmv7_set_channel(RIG *rig, const channel_t *chan)
{
    char membuf[ACKBUF_LEN],ackbuf[ACKBUF_LEN];
    int retval;
    size_t ack_len;
    char req[64];
    long freq;   
    int chn, step, shift, tone, ctcss, tonefq, ctcssfq;

    chn=chan->channel_num;
    freq=(long)chan->freq;

    for(step=0; rig->state.tuning_steps[step].ts!=0;step++)
	if(chan->tuning_step==rig->state.tuning_steps[step].ts) break;

    switch(chan->rptr_shift) {
	case RIG_RPT_SHIFT_NONE :
		shift=0;
		break;
	case  RIG_RPT_SHIFT_PLUS:
		shift=1;
		break;
	case RIG_RPT_SHIFT_MINUS:
		shift=2;
		break;
        default:
            rig_debug(RIG_DEBUG_ERR, "%s: not supported shift\n", __func__);
            return -RIG_EINVAL;
    }
    
    if(chan->ctcss_tone==0) {
	 tone=0;tonefq=9;
    } else {
	 tone=1;
    	for (tonefq = 0; rig->caps->ctcss_list[tonefq] != 0 && tonefq < RIG_TONEMAX; tonefq++) {
		if (rig->caps->ctcss_list[tonefq] == chan->ctcss_tone)
			break;
	}
	tonefq=tonefq==0?1:tonefq+2;
    }
    if(chan->ctcss_sql==0) {
	ctcss=0;ctcssfq=9;
    } else {
	 ctcss=1;
    	for (ctcssfq = 0; rig->caps->ctcss_list[ctcssfq] != 0 && ctcssfq < RIG_TONEMAX; ctcssfq++) {
		if (rig->caps->ctcss_list[ctcssfq] == chan->ctcss_sql)
			break;
	}
	 ctcssfq=ctcssfq==0?1:ctcssfq+2;
    }

    if(chan->channel_num<100)
    	sprintf(req,"MW 0,0,%03d",chan->channel_num);
    else
    if(chan->channel_num<200)
    	sprintf(req,"MW 1,0,%03d",chan->channel_num-100);
    else
    if(chan->channel_num<204) {
    	sprintf(req,"MW 0,0,L%01d",chan->channel_num-200);
    } else
    if(chan->channel_num<211) {
    	sprintf(req,"MW 1,0,L%01d",chan->channel_num-203);
    } else
    if(chan->channel_num<214) {
   	sprintf(req,"MW 0,0,U%01d",chan->channel_num-210);
    } else
    if(chan->channel_num<220) {
   	sprintf(req,"MW 1,0,U%01d",chan->channel_num-213);
    } else
    if(chan->channel_num<223) {
        if(chan->channel_num==221) {
    		 sprintf(req,"CW 0,0");
	}
        if(chan->channel_num==222) {
    		 sprintf(req,"CW 1,0");
	}
    } else
	return -RIG_EINVAL;

    if(chan->channel_num<221)
    	sprintf(membuf, "%s,%011ld,%01d,%01d,0,%01d,%01d,0,%02d,000,%02d,0,0",
                    req,(long)freq, step, shift, tone,
                    ctcss, tonefq, ctcssfq);
    else
    	sprintf(membuf, "%s,%011ld,%01d,%01d,0,%01d,%01d,0,%02d,000,%02d,",
                    req, (long)freq, step, shift, tone,
                    ctcss, tonefq, ctcssfq);

    ack_len=0;
    retval = kenwood_transaction(rig, membuf, strlen(membuf), ackbuf, &ack_len);
        if (retval != RIG_OK)
        	return retval;

    if(chan->tx_freq!=RIG_FREQ_NONE) {
    	req[5]='1';
    	sprintf(membuf, "%s,%011"PRIll",%01d", req, (int64_t)chan->tx_freq, step);
        ack_len=0;
    	retval = kenwood_transaction(rig, membuf, strlen(membuf), ackbuf, &ack_len);
        if (retval != RIG_OK)
        	return retval;
    }

    if(chan->channel_num<200) {
	    if(chan->channel_num<100)
	    	sprintf(membuf,"MNA 0,%03d,%s",chan->channel_num,chan->channel_desc);
	    else
	    	sprintf(membuf,"MNA 1,%03d,%s",chan->channel_num-100,chan->channel_desc);
    	ack_len=0;
    	retval = kenwood_transaction(rig, membuf, strlen(membuf), ackbuf, &ack_len);
        if (retval != RIG_OK)
        	return retval;
    }

    return RIG_OK;
}