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dummy.c

/*
 *  Hamlib Dummy backend - main file
 *  Copyright (c) 2001-2008 by Stephane Fillod
 *
 *    $Id: dummy.c,v 1.42 2008/09/21 19:34:15 fillods 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 <time.h>

#include "hamlib/rig.h"
#include "serial.h"
#include "misc.h"
#include "tones.h"
#include "idx_builtin.h"
#include "register.h"

#include "dummy.h"

#define NB_CHAN 22            /* see caps->chan_list */

struct dummy_priv_data {
            /* current vfo already in rig_state ? */
            vfo_t curr_vfo;
            vfo_t last_vfo;   /* VFO A or VFO B, when in MEM mode */

            ptt_t ptt;
            powerstat_t powerstat;
            int bank;
            value_t parms[RIG_SETTING_MAX];

            channel_t *curr;  /* points to vfo_a, vfo_b or mem[] */

            channel_t vfo_a;
            channel_t vfo_b;
            channel_t mem[NB_CHAN];
};


/********************************************************************/

static void init_chan(RIG *rig, vfo_t vfo, channel_t *chan)
{
  chan->channel_num = 0;
  chan->vfo = vfo;
  strcpy(chan->channel_desc, rig_strvfo(vfo));

  chan->freq = MHz(145);
  chan->mode = RIG_MODE_FM;
  chan->width = rig_passband_normal(rig, RIG_MODE_FM);
  chan->tx_freq = chan->freq;
  chan->tx_mode = chan->mode;
  chan->tx_width = chan->width;
  chan->split = RIG_SPLIT_OFF;

  chan->rptr_shift = RIG_RPT_SHIFT_NONE;
  chan->rptr_offs = 0;
  chan->ctcss_tone = 0;
  chan->dcs_code = 0;
  chan->ctcss_sql = 0;
  chan->dcs_sql = 0;
  chan->rit = 0;
  chan->xit = 0;
  chan->tuning_step = 0;
  chan->ant = 0;

  chan->funcs = (setting_t)0;
  memset(chan->levels, 0, RIG_SETTING_MAX*sizeof(value_t));
}

static int dummy_init(RIG *rig)
{
  struct dummy_priv_data *priv;
  int i;

  priv = (struct dummy_priv_data*)malloc(sizeof(struct dummy_priv_data));
  if (!priv)
              return -RIG_ENOMEM;
  rig->state.priv = (void*)priv;

  rig_debug(RIG_DEBUG_VERBOSE,"%s called\n", __FUNCTION__);
  rig->state.rigport.type.rig = RIG_PORT_NONE;

  priv->ptt = RIG_PTT_OFF;
  priv->powerstat = RIG_POWER_ON;
  priv->bank = 0;
  memset(priv->parms, 0, RIG_SETTING_MAX*sizeof(value_t));

  memset(priv->mem, 0, sizeof(priv->mem));
  for (i=0; i<NB_CHAN; i++) {
      priv->mem[i].channel_num = i;
      priv->mem[i].vfo = RIG_VFO_MEM;
  }
  init_chan(rig, RIG_VFO_A, &priv->vfo_a);
  init_chan(rig, RIG_VFO_B, &priv->vfo_b);
  priv->curr = &priv->vfo_a;
  priv->curr_vfo = priv->last_vfo = RIG_VFO_A;

  return RIG_OK;
}

static int dummy_cleanup(RIG *rig)
{
  rig_debug(RIG_DEBUG_VERBOSE,"%s called\n", __FUNCTION__);

  if (rig->state.priv)
      free(rig->state.priv);

  rig->state.priv = NULL;

  return RIG_OK;
}

static int dummy_open(RIG *rig)
{
  rig_debug(RIG_DEBUG_VERBOSE,"%s called\n", __FUNCTION__);

  return RIG_OK;
}

static int dummy_close(RIG *rig)
{
  rig_debug(RIG_DEBUG_VERBOSE,"%s called\n", __FUNCTION__);

  return RIG_OK;
}

static int dummy_set_freq(RIG *rig, vfo_t vfo, freq_t freq)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;
  char fstr[20];

  sprintf_freq(fstr, freq);
  rig_debug(RIG_DEBUG_VERBOSE,"%s called: %s %s\n", __FUNCTION__, 
                  rig_strvfo(vfo), fstr);
  curr->freq = freq;

  return RIG_OK;
}


static int dummy_get_freq(RIG *rig, vfo_t vfo, freq_t *freq)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;

  rig_debug(RIG_DEBUG_VERBOSE,"%s called: %s\n", __FUNCTION__, rig_strvfo(vfo));

  *freq = curr->freq;

  return RIG_OK;
}


static int dummy_set_mode(RIG *rig, vfo_t vfo, rmode_t mode, pbwidth_t width)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;
  char buf[16];

  sprintf_freq(buf, width);
  rig_debug(RIG_DEBUG_VERBOSE,"%s called: %s %s %s\n", __FUNCTION__, 
            rig_strvfo(vfo), rig_strrmode(mode), buf);

  curr->mode = mode;
  curr->width = width;

  return RIG_OK;
}


static int dummy_get_mode(RIG *rig, vfo_t vfo, rmode_t *mode, pbwidth_t *width)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;

  rig_debug(RIG_DEBUG_VERBOSE,"%s called: %s\n", __FUNCTION__, rig_strvfo(vfo));

  *mode = curr->mode;
  *width = curr->width;

  return RIG_OK;
}


static int dummy_set_vfo(RIG *rig, vfo_t vfo)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;

  rig_debug(RIG_DEBUG_VERBOSE,"%s called: %s\n", __FUNCTION__, rig_strvfo(vfo));

  priv->last_vfo = priv->curr_vfo;
  priv->curr_vfo = vfo;
  switch (vfo) {
  case RIG_VFO_VFO:     /* FIXME */

  case RIG_VFO_A: priv->curr = &priv->vfo_a; break;
  case RIG_VFO_B: priv->curr = &priv->vfo_b; break;
  case RIG_VFO_MEM: 
                          if (curr->channel_num >= 0 && curr->channel_num < NB_CHAN) {
                                      priv->curr = &priv->mem[curr->channel_num];
                                      break;
                          }
  default:
      rig_debug(RIG_DEBUG_VERBOSE,"%s unknown vfo: %s\n", __FUNCTION__, rig_strvfo(vfo));
  }

  return RIG_OK;
}


static int dummy_get_vfo(RIG *rig, vfo_t *vfo)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;

  *vfo = priv->curr_vfo;
  rig_debug(RIG_DEBUG_VERBOSE,"%s called: %s\n", __FUNCTION__, rig_strvfo(*vfo));

  return RIG_OK;
}


static int dummy_set_ptt(RIG *rig, vfo_t vfo, ptt_t ptt)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;

  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);
  priv->ptt = ptt;

  return RIG_OK;
}


static int dummy_get_ptt(RIG *rig, vfo_t vfo, ptt_t *ptt)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;

  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);
  *ptt = priv->ptt;

  return RIG_OK;
}


static int dummy_get_dcd(RIG *rig, vfo_t vfo, dcd_t *dcd)
{
  static int twiddle = 0;

  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);
  *dcd = twiddle++ & 1 ? RIG_DCD_ON : RIG_DCD_OFF;

  return RIG_OK;
}


static int dummy_set_rptr_shift(RIG *rig, vfo_t vfo, rptr_shift_t rptr_shift)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;

  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);
  curr->rptr_shift = rptr_shift;

  return RIG_OK;
}


static int dummy_get_rptr_shift(RIG *rig, vfo_t vfo, rptr_shift_t *rptr_shift)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;

  *rptr_shift = curr->rptr_shift;
  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);

  return RIG_OK;
}


static int dummy_set_rptr_offs(RIG *rig, vfo_t vfo, shortfreq_t rptr_offs)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;

  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);
  curr->rptr_offs = rptr_offs;

  return RIG_OK;
}


static int dummy_get_rptr_offs(RIG *rig, vfo_t vfo, shortfreq_t *rptr_offs)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;

  *rptr_offs = curr->rptr_offs;
  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);

  return RIG_OK;
}


static int dummy_set_ctcss_tone(RIG *rig, vfo_t vfo, tone_t tone)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;

  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);
  curr->ctcss_tone = tone;

  return RIG_OK;
}


static int dummy_get_ctcss_tone(RIG *rig, vfo_t vfo, tone_t *tone)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;

  *tone = curr->ctcss_tone;
  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);

  return RIG_OK;
}


static int dummy_set_dcs_code(RIG *rig, vfo_t vfo, tone_t code)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;

  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);
  curr->dcs_code = code;

  return RIG_OK;
}


static int dummy_get_dcs_code(RIG *rig, vfo_t vfo, tone_t *code)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;

  *code = curr->dcs_code;
  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);

  return RIG_OK;
}


static int dummy_set_ctcss_sql(RIG *rig, vfo_t vfo, tone_t tone)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;

  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);
  curr->ctcss_sql = tone;

  return RIG_OK;
}


static int dummy_get_ctcss_sql(RIG *rig, vfo_t vfo, tone_t *tone)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;

  *tone = curr->ctcss_sql;
  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);

  return RIG_OK;
}


static int dummy_set_dcs_sql(RIG *rig, vfo_t vfo, unsigned int code)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;

  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);
  curr->dcs_sql = code;

  return RIG_OK;
}


static int dummy_get_dcs_sql(RIG *rig, vfo_t vfo, unsigned int *code)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;

  *code = curr->dcs_sql;
  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);

  return RIG_OK;
}


static int dummy_set_split_freq(RIG *rig, vfo_t vfo, freq_t tx_freq)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;
  char fstr[20];

  sprintf_freq(fstr, tx_freq);
  rig_debug(RIG_DEBUG_VERBOSE,"%s called: %s %s\n", __FUNCTION__, 
                  rig_strvfo(vfo), fstr);
  curr->tx_freq = tx_freq;

  return RIG_OK;
}


static int dummy_get_split_freq(RIG *rig, vfo_t vfo, freq_t *tx_freq)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;

  rig_debug(RIG_DEBUG_VERBOSE,"%s called: %s\n", __FUNCTION__,rig_strvfo(vfo));

  *tx_freq = curr->tx_freq;

  return RIG_OK;
}

static int dummy_set_split_mode(RIG *rig, vfo_t vfo, rmode_t tx_mode, pbwidth_t tx_width)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;
  char buf[16];

  sprintf_freq(buf, tx_width);
  rig_debug(RIG_DEBUG_VERBOSE,"%s called: %s %s %s\n", __FUNCTION__,
            rig_strvfo(vfo), rig_strrmode(tx_mode), buf);

  curr->tx_mode = tx_mode;
  curr->tx_width = tx_width;

  return RIG_OK;
}

static int dummy_get_split_mode(RIG *rig, vfo_t vfo, rmode_t *tx_mode, pbwidth_t *tx_width)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;

  rig_debug(RIG_DEBUG_VERBOSE,"%s called: %s\n", __FUNCTION__, rig_strvfo(vfo));

  *tx_mode = curr->tx_mode;
  *tx_width = curr->tx_width;

  return RIG_OK;
}

static int dummy_set_split_vfo(RIG *rig, vfo_t vfo, split_t split, vfo_t tx_vfo)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;

  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);
  curr->split = split;

  return RIG_OK;
}


static int dummy_get_split_vfo(RIG *rig, vfo_t vfo, split_t *split, vfo_t *tx_vfo)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;

  *split = curr->split;
  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);

  return RIG_OK;
}

static int dummy_set_rit(RIG *rig, vfo_t vfo, shortfreq_t rit)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;

  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);
  curr->rit = rit;

  return RIG_OK;
}


static int dummy_get_rit(RIG *rig, vfo_t vfo, shortfreq_t *rit)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;

  *rit = curr->rit;
  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);

  return RIG_OK;
}


static int dummy_set_xit(RIG *rig, vfo_t vfo, shortfreq_t xit)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;

  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);
  curr->xit = xit;

  return RIG_OK;
}


static int dummy_get_xit(RIG *rig, vfo_t vfo, shortfreq_t *xit)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;

  *xit = curr->xit;
  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);

  return RIG_OK;
}


static int dummy_set_ts(RIG *rig, vfo_t vfo, shortfreq_t ts)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;

  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);
  curr->tuning_step = ts;

  return RIG_OK;
}


static int dummy_get_ts(RIG *rig, vfo_t vfo, shortfreq_t *ts)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;

  *ts = curr->tuning_step;
  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);

  return RIG_OK;
}


static int dummy_set_func(RIG *rig, vfo_t vfo, setting_t func, int status)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;

  rig_debug(RIG_DEBUG_VERBOSE,"%s called: %s %d\n",__FUNCTION__, 
                          rig_strfunc(func), status);
  if (func < RIG_SETTING_MAX) {
            if (status)
                  curr->funcs |=  func;
            else
                  curr->funcs &= ~func;
  }

  return RIG_OK;
}


static int dummy_get_func(RIG *rig, vfo_t vfo, setting_t func, int *status)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;

  if (func < RIG_SETTING_MAX)
            *status = curr->funcs & func ? 1 : 0;

  rig_debug(RIG_DEBUG_VERBOSE,"%s called: %s\n",__FUNCTION__, 
                          rig_strfunc(func));

  return RIG_OK;
}


static int dummy_set_level(RIG *rig, vfo_t vfo, setting_t level, value_t val)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;
  int idx;
  char lstr[32];

  idx = rig_setting2idx(level);
  if (idx < RIG_SETTING_MAX)
      curr->levels[idx] = val;

  if (RIG_LEVEL_IS_FLOAT(level))
              sprintf(lstr, "%f", val.f);
  else
              sprintf(lstr, "%d", val.i);
  rig_debug(RIG_DEBUG_VERBOSE,"%s called: %s %s\n",__FUNCTION__, 
                          rig_strlevel(level), lstr);

  return RIG_OK;
}


static int dummy_get_level(RIG *rig, vfo_t vfo, setting_t level, value_t *val)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;
  int idx;

  idx = rig_setting2idx(level);

  /* make S-Meter jiggle */
  if (level == RIG_LEVEL_STRENGTH || level == RIG_LEVEL_RAWSTR)
      curr->levels[idx].i = -30 + time(NULL)%32 + rand()%4 
            - curr->levels[LVL_ATT].i
            + curr->levels[LVL_PREAMP].i;

  if (idx < RIG_SETTING_MAX)
      *val = curr->levels[idx];
  rig_debug(RIG_DEBUG_VERBOSE,"%s called: %s\n",__FUNCTION__, 
                          rig_strlevel(level));

  return RIG_OK;
}


static int dummy_set_powerstat(RIG *rig, powerstat_t status)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;

  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);
  priv->powerstat = status;

  return RIG_OK;
}


static int dummy_get_powerstat(RIG *rig, powerstat_t *status)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;

  *status = priv->powerstat;
  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);

  return RIG_OK;
}


static int dummy_set_parm(RIG *rig, setting_t parm, value_t val)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  int idx;
  char pstr[32];

  idx = rig_setting2idx(parm);

  if (RIG_PARM_IS_FLOAT(parm))
              sprintf(pstr, "%f", val.f);
  else
              sprintf(pstr, "%d", val.i);
  rig_debug(RIG_DEBUG_VERBOSE,"%s called: %s %s\n", __FUNCTION__, 
                          rig_strparm(parm), pstr);
  if (idx < RIG_SETTING_MAX)
      priv->parms[idx] = val;

  return RIG_OK;
}


static int dummy_get_parm(RIG *rig, setting_t parm, value_t *val)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  int idx;

  idx = rig_setting2idx(parm);

  if (idx < RIG_SETTING_MAX)
      *val = priv->parms[idx];
  rig_debug(RIG_DEBUG_VERBOSE,"%s called %s\n",__FUNCTION__, 
                          rig_strparm(parm));

  return RIG_OK;
}


static int dummy_set_ant(RIG *rig, vfo_t vfo, ant_t ant)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;

  curr->ant = ant;
  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);

  return RIG_OK;
}


static int dummy_get_ant(RIG *rig, vfo_t vfo, ant_t *ant)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;

  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);
  *ant = curr->ant;

  return RIG_OK;
}


static int dummy_set_bank(RIG *rig, vfo_t vfo, int bank)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;

  priv->bank = bank;
  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);

  return RIG_OK;
}


static int dummy_set_mem(RIG *rig, vfo_t vfo, int ch)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;

  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);

  if (priv->curr_vfo == RIG_VFO_MEM)
              priv->curr = &priv->mem[ch];
  else
              priv->curr->channel_num = ch;

  return RIG_OK;
}


static int dummy_get_mem(RIG *rig, vfo_t vfo, int *ch)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;

  *ch = curr->channel_num;
  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);

  return RIG_OK;
}

static int dummy_scan(RIG *rig, vfo_t vfo, scan_t scan, int ch)
{
  rig_debug(RIG_DEBUG_VERBOSE,"%s called: %s %d\n",__FUNCTION__, 
                          rig_strscan(scan), ch);

  return RIG_OK;
}

static void chan_vfo(channel_t *chan, vfo_t vfo)
{
      chan->vfo = vfo;
      strcpy(chan->channel_desc, rig_strvfo(vfo));
}

static int dummy_vfo_op(RIG *rig, vfo_t vfo, vfo_op_t op)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;
  channel_t *curr = priv->curr;
  int ret;
  freq_t freq;
  shortfreq_t ts;

  rig_debug(RIG_DEBUG_VERBOSE,"%s called: %s\n",__FUNCTION__, 
                          rig_strvfop(op));

  switch (op) {
        case RIG_OP_FROM_VFO: /* VFO->MEM */
                    if (priv->curr_vfo == RIG_VFO_MEM) {
                        int ch = curr->channel_num;
                        memcpy(curr, priv->last_vfo == RIG_VFO_A ?
                                            &priv->vfo_a : &priv->vfo_b, sizeof(channel_t));
                        curr->channel_num = ch;
                        curr->channel_desc[0] = '\0';
                        curr->vfo = RIG_VFO_MEM;
                    } else {
                        channel_t *mem_chan = &priv->mem[curr->channel_num];
                        memcpy(mem_chan, curr, sizeof(channel_t));
                        mem_chan->channel_num = curr->channel_num;
                        mem_chan->channel_desc[0] = '\0';
                        mem_chan->vfo = RIG_VFO_MEM;
                    }
                    break;
        case RIG_OP_TO_VFO:         /* MEM->VFO */
                    if (priv->curr_vfo == RIG_VFO_MEM) {
                      channel_t *vfo_chan = (priv->last_vfo == RIG_VFO_A) ? 
                                                                  &priv->vfo_a : &priv->vfo_b;
                        memcpy(vfo_chan, curr, sizeof(channel_t));
                        chan_vfo(vfo_chan, priv->last_vfo);
                    } else {
                        memcpy(&priv->mem[curr->channel_num], 
                                                curr, sizeof(channel_t));
                        chan_vfo(curr, priv->curr_vfo);
                    }
                    break;
        case RIG_OP_CPY:       /* VFO A = VFO B   or   VFO B = VFO A */
                    if (priv->curr_vfo == RIG_VFO_A) {
                        memcpy(&priv->vfo_b, &priv->vfo_a, sizeof(channel_t));
                        chan_vfo(&priv->vfo_b, RIG_VFO_B);
                        break;
                    } else if (priv->curr_vfo == RIG_VFO_B) {
                        memcpy(&priv->vfo_a, &priv->vfo_b, sizeof(channel_t));
                        chan_vfo(&priv->vfo_a, RIG_VFO_A);
                        break;
                    }
                    rig_debug(RIG_DEBUG_VERBOSE,"%s beep!\n", __FUNCTION__ );
                    break;
        case RIG_OP_XCHG: /* Exchange VFO A/B */ 
                    {
                        channel_t chan;
                        memcpy(&chan, &priv->vfo_b, sizeof(channel_t));
                        memcpy(&priv->vfo_b, &priv->vfo_a, sizeof(channel_t));
                        memcpy(&priv->vfo_a, &chan, sizeof(channel_t));
                        chan_vfo(&priv->vfo_a, RIG_VFO_A);
                        chan_vfo(&priv->vfo_b, RIG_VFO_B);
                        break;
                    }
        case RIG_OP_MCL:      /* Memory clear */
                    if (priv->curr_vfo == RIG_VFO_MEM) {
                              int ch = curr->channel_num;
                              memset(curr, 0, sizeof(channel_t));
                              curr->channel_num = ch;
                              curr->vfo = RIG_VFO_MEM;
                    } else {
                              channel_t *mem_chan = &priv->mem[curr->channel_num];
                              memset(mem_chan, 0, sizeof(channel_t));
                              mem_chan->channel_num = curr->channel_num;
                              mem_chan->vfo = RIG_VFO_MEM;
                    }
                    break;
      case RIG_OP_UP:
            ret = dummy_get_freq(rig, vfo, &freq);
            if (!ret) break;
            ret = dummy_get_ts(rig, vfo, &ts);
            if (!ret) break;
            ret = dummy_set_freq(rig, vfo, freq+ts);  /* up */
            break;
        case RIG_OP_DOWN:
            ret = dummy_get_freq(rig, vfo, &freq);
            if (!ret) break;
            ret = dummy_get_ts(rig, vfo, &ts);
            if (!ret) break;
            ret = dummy_set_freq(rig, vfo, freq-ts);  /* down */
            break;

      default:
            break;
  }

  return RIG_OK;
}

static int dummy_set_channel(RIG *rig, const channel_t *chan)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;

  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);

  /* TODO: check chan->channel_num is in a valid range */
  switch (chan->vfo) {
        case RIG_VFO_MEM:
            memcpy(&priv->mem[chan->channel_num], chan, sizeof(channel_t));
            break;
        case RIG_VFO_A:
            memcpy(&priv->vfo_a, chan, sizeof(channel_t));
            break;
        case RIG_VFO_B:
            memcpy(&priv->vfo_b, chan, sizeof(channel_t));
            break;
        case RIG_VFO_CURR:
            memcpy(priv->curr, chan, sizeof(channel_t));
            break;
        default:
            return -RIG_EINVAL;
  }

  return RIG_OK;
}


static int dummy_get_channel(RIG *rig, channel_t *chan)
{
  struct dummy_priv_data *priv = (struct dummy_priv_data *)rig->state.priv;

  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);

  /* TODO: check chan->channel_num is in a valid range */
  switch (chan->vfo) {
        case RIG_VFO_MEM:
            memcpy(chan, &priv->mem[chan->channel_num], sizeof(channel_t));
            break;
        case RIG_VFO_A:
            memcpy(chan, &priv->vfo_a, sizeof(channel_t));
            break;
        case RIG_VFO_B:
            memcpy(chan, &priv->vfo_b, sizeof(channel_t));
            break;
        case RIG_VFO_CURR:
            memcpy(chan, priv->curr, sizeof(channel_t));
            break;
        default:
            return -RIG_EINVAL;
  }

  return RIG_OK;
}


static int dummy_set_trn(RIG *rig, int trn)
{
  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);

  return RIG_OK;
}


static int dummy_get_trn(RIG *rig, int *trn)
{
  *trn = RIG_TRN_OFF;
  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);

  return RIG_OK;
}

static const char *dummy_get_info(RIG *rig)
{
  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);

  return "Nothing much (dummy)";
}


static int dummy_send_dtmf(RIG *rig, vfo_t vfo, const char *digits)
{
  rig_debug(RIG_DEBUG_VERBOSE,"%s called: %s\n", __FUNCTION__, digits);

  return RIG_OK;
}

static int dummy_recv_dtmf(RIG *rig, vfo_t vfo, char *digits, int *length)
{
  rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __FUNCTION__);
  strcpy(digits, "0123456789ABCDEF");
  *length = 16;

  return RIG_OK;
}

static int dummy_send_morse(RIG *rig, vfo_t vfo, const char *msg)
{
  rig_debug(RIG_DEBUG_VERBOSE,"%s called: %s\n", __FUNCTION__, msg);

  return RIG_OK;
}



/*
 * Dummy rig capabilities.
 */

#if 0
#define DUMMY_FUNC  0x7fffffffffffffLL    /* has it all */
#define DUMMY_LEVEL 0x7ffffffffffffffLL
#define DUMMY_PARM  0x7ffffffffffffffLL
#else
#define DUMMY_FUNC  ((setting_t)-1) /* has it all */
#define DUMMY_LEVEL ((setting_t)-1)
#define DUMMY_PARM  ((setting_t)-1)
#endif

#define DUMMY_VFO_OP  0x7ffffffL
#define DUMMY_SCAN      0x7ffffffL

#define DUMMY_MODES (RIG_MODE_AM | RIG_MODE_CW | RIG_MODE_RTTY | \
                     RIG_MODE_SSB | RIG_MODE_FM | RIG_MODE_WFM)

#define DUMMY_MEM_CAP {    \
      .bank_num = 1,    \
      .vfo = 1,   \
      .ant = 1,   \
      .freq = 1,  \
      .mode = 1,  \
      .width = 1, \
      .tx_freq = 1,     \
      .tx_mode = 1,     \
      .tx_width = 1,    \
      .split = 1, \
      .rptr_shift = 1,  \
      .rptr_offs = 1,   \
      .tuning_step = 1, \
      .rit = 1,   \
      .xit = 1,   \
      .funcs = 1, \
      .levels = 1,      \
      .ctcss_tone = 1,  \
      .ctcss_sql = 1,   \
      .dcs_code = 1,    \
      .dcs_sql = 1,     \
      .scan_group = 1,  \
      .flags = 1, \
      .channel_desc = 1,      \
      .ext_levels = 1,  \
      }

const struct rig_caps dummy_caps = {
  .rig_model =      RIG_MODEL_DUMMY,
  .model_name =     "Dummy",
  .mfg_name =       "Hamlib",
  .version =        "0.3",
  .copyright =      "LGPL",
  .status =         RIG_STATUS_BETA,
  .rig_type =       RIG_TYPE_OTHER,
  .targetable_vfo =      0,
  .ptt_type =       RIG_PTT_RIG,
  .dcd_type =       RIG_DCD_RIG,
  .port_type =      RIG_PORT_NONE,
  .has_get_func =   DUMMY_FUNC,
  .has_set_func =   DUMMY_FUNC,
  .has_get_level =  DUMMY_LEVEL,
  .has_set_level =  RIG_LEVEL_SET(DUMMY_LEVEL),
  .has_get_parm =        DUMMY_PARM,
  .has_set_parm =        RIG_PARM_SET(DUMMY_PARM),
  .level_gran =          { [LVL_CWPITCH] = { .step = { .i = 10 } } },
  .ctcss_list =    common_ctcss_list,
  .dcs_list =      full_dcs_list,
  .chan_list =     {
                  {   0,  18, RIG_MTYPE_MEM, DUMMY_MEM_CAP },
                  {  19,  19, RIG_MTYPE_CALL },
                  {  20,  21, RIG_MTYPE_EDGE },
                  RIG_CHAN_END,
             },
  .scan_ops =      DUMMY_SCAN,
  .vfo_ops =       DUMMY_VFO_OP,
  .transceive =     RIG_TRN_OFF,
  .attenuator =     { 10, 20, 30, RIG_DBLST_END, },
  .preamp =              { 10, RIG_DBLST_END, },
  .rx_range_list2 =  { {.start=kHz(150),.end=MHz(1500),.modes=DUMMY_MODES,
                .low_power=-1,.high_power=-1,RIG_VFO_A|RIG_VFO_B},
                RIG_FRNG_END, },
  .tx_range_list2 =  { RIG_FRNG_END, },
  .tuning_steps =  { {DUMMY_MODES,1}, {DUMMY_MODES,RIG_TS_ANY}, RIG_TS_END, },
  .filters =  {
      {RIG_MODE_SSB|RIG_MODE_CW|RIG_MODE_RTTY, kHz(2.4)},
      {RIG_MODE_CW, Hz(500)},
      {RIG_MODE_AM, kHz(8)},
      {RIG_MODE_AM, kHz(2.4)},
      {RIG_MODE_FM, kHz(15)},
      {RIG_MODE_FM, kHz(8)},
      {RIG_MODE_WFM, kHz(230)},
      RIG_FLT_END,
  },
  .max_rit = 9990,
  .max_xit = 9990,
  .max_ifshift = 10000,
  .priv =  NULL,  /* priv */

  .rig_init =     dummy_init,
  .rig_cleanup =  dummy_cleanup,
  .rig_open =     dummy_open,
  .rig_close =    dummy_close,

  .set_freq =     dummy_set_freq,
  .get_freq =     dummy_get_freq,
  .set_mode =     dummy_set_mode,
  .get_mode =     dummy_get_mode,
  .set_vfo =      dummy_set_vfo,
  .get_vfo =      dummy_get_vfo,
  
  .set_powerstat =  dummy_set_powerstat,
  .get_powerstat =  dummy_get_powerstat,
  .set_level =     dummy_set_level,
  .get_level =     dummy_get_level,
  .set_func =      dummy_set_func,
  .get_func =      dummy_get_func,
  .set_parm =      dummy_set_parm,
  .get_parm =      dummy_get_parm,

  .get_info =      dummy_get_info,


  .set_ptt =      dummy_set_ptt,
  .get_ptt =      dummy_get_ptt,
  .get_dcd =      dummy_get_dcd,
  .set_rptr_shift =     dummy_set_rptr_shift,
  .get_rptr_shift =     dummy_get_rptr_shift,
  .set_rptr_offs =      dummy_set_rptr_offs,
  .get_rptr_offs =      dummy_get_rptr_offs,
  .set_ctcss_tone =     dummy_set_ctcss_tone,
  .get_ctcss_tone =     dummy_get_ctcss_tone,
  .set_dcs_code =       dummy_set_dcs_code,
  .get_dcs_code =       dummy_get_dcs_code,
  .set_ctcss_sql =      dummy_set_ctcss_sql,
  .get_ctcss_sql =      dummy_get_ctcss_sql,
  .set_dcs_sql =  dummy_set_dcs_sql,
  .get_dcs_sql =  dummy_get_dcs_sql,
  .set_split_freq =     dummy_set_split_freq,
  .get_split_freq =     dummy_get_split_freq,
  .set_split_mode =     dummy_set_split_mode,
  .get_split_mode =     dummy_get_split_mode,
  .set_split_vfo =      dummy_set_split_vfo,
  .get_split_vfo =      dummy_get_split_vfo,
  .set_rit =      dummy_set_rit,
  .get_rit =      dummy_get_rit,
  .set_xit =      dummy_set_xit,
  .get_xit =      dummy_get_xit,
  .set_ts =       dummy_set_ts,
  .get_ts =       dummy_get_ts,
  .set_ant =      dummy_set_ant,
  .get_ant =      dummy_get_ant,
  .set_bank =     dummy_set_bank,
  .set_mem =      dummy_set_mem,
  .get_mem =      dummy_get_mem,
  .vfo_op =       dummy_vfo_op,
  .scan =         dummy_scan,
  .send_dtmf =  dummy_send_dtmf,
  .recv_dtmf =  dummy_recv_dtmf,
  .send_morse =  dummy_send_morse,
  .set_channel =  dummy_set_channel,
  .get_channel =  dummy_get_channel,
  .set_trn =      dummy_set_trn,
  .get_trn =      dummy_get_trn,
};

DECLARE_INITRIG_BACKEND(dummy)
{
      rig_debug(RIG_DEBUG_VERBOSE, "dummy: _init called\n");

      rig_register(&dummy_caps);
      rig_register(&netrigctl_caps);

      return RIG_OK;
}

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