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pcr.c

/*
 *  Hamlib PCR backend - main file
 *  Copyright (c) 2001-2005 by Darren Hatcher
 *  Copyright (c) 2001-2010 by Stephane Fillod
 *  Copyright (C) 2007-09 by Alessandro Zummo <a.zummo@towertech.it>
 *
 *
 *   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.
 *
 */
/*
 * Tested on
 *
 * (402) PCR100  fw 1.2, proto 1.0 (usb-to-serial) by IZ1PRB
 * (401) PCR1000 fw 1.0, proto 1.0 (serial) by KM3T
 * (403) PCR1500 fw 2.0, proto 2.0 (usb) by KM3T
 *
 */

#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 <errno.h>
#include <ctype.h>

#include "hamlib/rig.h"
#include "serial.h"
#include "misc.h"
#include "register.h"
#include "cal.h"
#include "pcr.h"

/*
 * modes in use by the "MD" command
 */
#define MD_LSB    '0'
#define MD_USB    '1'
#define MD_AM     '2'
#define MD_CW     '3'
#define MD_FM     '5'
#define MD_WFM    '6'
#define MD_DSTAR  '7' /* PCR-2500 Only */
#define MD_P25    '8' /* PCR-2500 Only */


/* define 2.8kHz, 6kHz, 15kHz, 50kHz, and 230kHz */
#define FLT_2_8kHz      '0'
#define FLT_6kHz  '1'
#define FLT_15kHz '2'
#define FLT_50kHz '3'
#define FLT_230kHz      '4'

/* as returned by GD? */
#define OPT_UT106 (1 << 0)
#define OPT_UT107 (1 << 4)

/*
 * CTCSS sub-audible tones for PCR100 and PCR1000
 * Don't even touch a single bit! indexes will be used in the protocol!
 * 51 tones, the 60.0 Hz tone is missing.
 */
const tone_t pcr_ctcss_list[] = {
      670,  693,  710,  719,  744,  770,  797,  825,  854,  885,  915,
      948,  974,  1000, 1035, 1072, 1109, 1148, 1188, 1230, 1273,
      1318, 1365, 1413, 1462, 1514, 1567, 1598, 1622, 1655, 1679,
      1713, 1738, 1773, 1799, 1835, 1862, 1899, 1928, 1966, 1995,
      2035, 2065, 2107, 2181, 2257, 2291, 2336, 2418, 2503, 2541,
      0,
};

/*
 * DTCS SQL code list
 * Don't even touch a single bit! indexes will be used in the protocol!
 * 104 codes
 */
const tone_t pcr_dcs_list[] = {
            23,  25,  26,  31,  32,  36,  43,  47,       51,  53,
       54,  65,  71,  72,  73,  74, 114, 115, 116, 122, 125, 131,
      132, 134, 143, 145, 152, 155, 156, 162, 165, 172, 174, 205,
      212, 223, 225, 226, 243, 244, 245, 246, 251, 252, 255, 261,
      263, 265, 266, 271, 274, 306, 311, 315, 325, 331, 332, 343,
      346, 351, 356, 364, 365, 371, 411, 412, 413, 423, 431, 432,
      445, 446, 452, 454, 455, 462, 464, 465, 466, 503, 506, 516,
      523, 526, 532, 546, 565, 606, 612, 624, 627, 631, 632, 654,
      662, 664, 703, 712, 723, 731, 732, 734, 743, 754,
      0,
};

00107 struct pcr_country
{
      int id;
      char *name;
};

struct pcr_country pcr_countries[] = {
      { 0x00, "Japan" },
      { 0x01, "USA" },
      { 0x02, "EUR/AUS" },
      { 0x03, "FRA" },
      { 0x04, "DEN" },
      { 0x05, "CAN" },
      { 0x06, "Generic 1" },
      { 0x07, "Generic 2" },
      { 0x08, "FCC Japan" },
      { 0x09, "FCC USA" },
      { 0x0A, "FCC EUR/AUS" },
      { 0x0B, "FCC FRA" },
      { 0x0C, "FCC DEN" },
      { 0x0D, "FCC CAN" },
      { 0x0E, "FCC Generic 1" },
      { 0x0F, "FCC Generic 2" },
};


static int pcr_set_volume(RIG *rig, vfo_t vfo, float level);
static int pcr_set_squelch(RIG *rig, vfo_t vfo, float level);
static int pcr_set_if_shift(RIG *rig, vfo_t vfo, int level);
static int pcr_set_agc(RIG *rig, vfo_t vfo, int status);                // J45xx
static int pcr_set_afc(RIG *rig, vfo_t vfo, int status);                // LD820xx
static int pcr_set_nb(RIG *rig, vfo_t vfo, int status);                 // J46xx
static int pcr_set_attenuator(RIG *rig, vfo_t vfo, int status);         // J47xx
static int pcr_set_anl(RIG *rig, vfo_t vfo, int status);                // J4Dxx
static int pcr_set_diversity(RIG * rig, vfo_t vfo, int status);   // J00xx on PCR-2500

static int pcr_set_bfo_shift(RIG *rig, vfo_t vfo, int level);          // J4Axx
static int pcr_set_vsc(RIG *rig, vfo_t vfo, int level);                // J50xx
static int pcr_set_dsp(RIG *rig, vfo_t vfo, int level);                // J80xx
static int pcr_set_dsp_state(RIG *rig, vfo_t vfo, int level);          // J8100=off J8101=on
#if 0 /* unused; re-enabled as needed. */
static int pcr_set_dsp_noise_reducer(RIG *rig, vfo_t vfo, int level);  // J82xx
#endif /* unused */
static int pcr_set_dsp_auto_notch(RIG *rig, vfo_t vfo, int level);     // J83xx

static int pcr_check_ok(RIG * rig);

static int is_sub_rcvr(RIG * rig, vfo_t vfo);


#define PCR_COUNTRIES (sizeof(pcr_countries) / sizeof(struct pcr_country))

#define is_valid_answer(x) \
      ((x) == 'I' || (x) == 'G' || (x) == 'N' || (x) == 'H')

static int
pcr_read_block(RIG *rig, char *rxbuffer, size_t count)
{
      int err;
      int read = 0, tries = 4;

      struct rig_state *rs = &rig->state;
      struct pcr_priv_caps *caps = pcr_caps(rig);
      struct pcr_priv_data *priv = (struct pcr_priv_data *) rs->priv;

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

      /* already in sync? */
      if (priv->sync && !caps->always_sync)
            return read_block(&rs->rigport, rxbuffer, count);

      /* read first char */
      do {
            char *p = &rxbuffer[0];

            /* read first char */
            err = read_block(&rs->rigport, p, 1);
            if (err < 0)
                  return err;

            if (err != 1)
                  return -RIG_EPROTO;

            /* validate */
            if (*p != 0x0a && !is_valid_answer(*p))
                  continue;

            /* sync ok, read remaining chars */
            read++;
            count--;
            p++;

            err = read_block(&rs->rigport, p, count);
            if (err < 0) {
                  rig_debug(RIG_DEBUG_ERR, "%s: read failed - %s\n",
                        __func__, strerror(errno));

                  return err;
            }

            if (err == count) {
                  read += err;
                  priv->sync = 1;
            }

            rig_debug(RIG_DEBUG_TRACE, "%s: RX %d bytes\n", __func__, read);

            return read;

      } while (--tries > 0);

      return -RIG_EPROTO;
}

/* expects a 4 byte buffer to parse */
static int
pcr_parse_answer(RIG *rig, char *buf, int len)
{
      struct rig_state *rs = &rig->state;
      struct pcr_priv_data *priv = (struct pcr_priv_data *) rs->priv;

      rig_debug(RIG_DEBUG_TRACE, "%s: len = %d\n", __func__, len);

      if (len < 4) {
            priv->sync = 0;
            return -RIG_EPROTO;
      }

      if (strncmp("G000", buf, 4) == 0)
            return RIG_OK;

      if (strncmp("G001", buf, 4) == 0)
            return -RIG_ERJCTED;

      if (strncmp("H101", buf, 4) == 0)
            return RIG_OK;

      if (strncmp("H100", buf, 4) == 0)
            return -RIG_ERJCTED;

      if (buf[0] == 'I') {
            switch (buf[1]) {
            /* Main receiver */
            case '0':
                  sscanf(buf, "I0%02X", &priv->main_rcvr.squelch_status);
                  return RIG_OK;

            case '1':
                  sscanf(buf, "I1%02X", &priv->main_rcvr.raw_level);
                  return RIG_OK;

            case '2':
                  rig_debug(RIG_DEBUG_VERBOSE, "%s: Signal centering %c%c\n",
                        __func__, buf[2], buf[3]);
                  return RIG_OK;

            case '3':
                  rig_debug(RIG_DEBUG_WARN, "%s: DTMF %c\n",
                        __func__, buf[3]);
                  return RIG_OK;

            /* Sub receiver (on PCR-2500..) - TBC */
            case '4':
                  sscanf(buf, "I4%02X", &priv->sub_rcvr.squelch_status);
                  return RIG_OK;

            case '5':
                  sscanf(buf, "I5%02X", &priv->sub_rcvr.raw_level);
                  return RIG_OK;

            case '6':
                  rig_debug(RIG_DEBUG_VERBOSE, "%s: Signal centering %c%c (Sub)\n",
                        __func__, buf[2], buf[3]);
                  return RIG_OK;

            case '7':
                  rig_debug(RIG_DEBUG_WARN, "%s: DTMF %c (Sub)\n",
                        __func__, buf[3]);
                  return RIG_OK;
            }
      } else if (buf[0] == 'G') {
            switch (buf[1]) {
            case '2': /* G2 */
                  sscanf((char *) buf, "G2%d", &priv->protocol);
                  return RIG_OK;

            case '4': /* G4 */
                  sscanf((char *) buf, "G4%d", &priv->firmware);
                  return RIG_OK;

            case 'D': /* GD */
                  sscanf((char *) buf, "GD%d", &priv->options);
                  return RIG_OK;

            case 'E': /* GE */
                  sscanf((char *) buf, "GE%d", &priv->country);
                  return RIG_OK;
            }
      }

      priv->sync = 0;

      return -RIG_EPROTO;

      /* XXX bandscope */
}

static int
pcr_send(RIG * rig, const char *cmd)
{
      int err;
      struct rig_state *rs = &rig->state;
      struct pcr_priv_data *priv = (struct pcr_priv_data *) rs->priv;

      int len = strlen(cmd);

      rig_debug(RIG_DEBUG_TRACE, "%s: cmd = %s, len = %d\n",
            __func__, cmd, len);

      /* XXX check max len */
      memcpy(priv->cmd_buf, cmd, len);

      /* append cr */
      /* XXX not required in auto update mode? (should not harm) */
      priv->cmd_buf[len+0] = 0x0a;

      rs->hold_decode = 1;

      err = write_block(&rs->rigport, priv->cmd_buf, len + 1);

      rs->hold_decode = 0;

      return err;
}


static int
pcr_transaction(RIG * rig, const char *cmd)
{
      int err;
      struct rig_state *rs = &rig->state;
      struct pcr_priv_caps *caps = pcr_caps(rig);
      struct pcr_priv_data *priv = (struct pcr_priv_data *) rs->priv;

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

      if (!priv->auto_update)
            serial_flush(&rs->rigport);

      pcr_send(rig, cmd);

      /* the pcr does not give ack in auto update mode */
      if (priv->auto_update)
            return RIG_OK;

      err = pcr_read_block(rig, priv->reply_buf, caps->reply_size);
      if (err < 0) {
            rig_debug(RIG_DEBUG_ERR,
                    "%s: read error, %s\n", __func__, strerror(errno));
            return err;
      }

      if (err != caps->reply_size) {
            priv->sync = 0;
            return -RIG_EPROTO;
      }

      return pcr_parse_answer(rig, &priv->reply_buf[caps->reply_offset], err);
}

static int
pcr_set_comm_speed(RIG *rig, int rate)
{
      int err;
      const char *rate_cmd;

      /* limit maximum rate */
      if (rate > 38400)
            rate = 38400;

      switch (rate) {
      case 300:
            rate_cmd = "G100";
            break;
      case 1200:
            rate_cmd = "G101";
            break;
      case 2400:
            rate_cmd = "G102";
            break;
      case 9600:
      default:
            rate_cmd = "G103";
            break;
      case 19200:
            rate_cmd = "G104";
            break;
      case 38400:
            rate_cmd = "G105";
            break;
      }

      rig_debug(RIG_DEBUG_VERBOSE, "%s: setting speed to %d with %s\n",
            __func__, rate, rate_cmd);

      /* the answer will be sent at the new baudrate,
       * so we do not use pcr_transaction
       */
      err = pcr_send(rig, rate_cmd);
      if (err != RIG_OK)
            return err;

      rig->state.rigport.parm.serial.rate = rate;
      serial_setup(&rig->state.rigport);

      /* check if the pcr is still alive */
      return pcr_check_ok(rig);
}


/* Basically, it sets up *priv */
int
pcr_init(RIG * rig)
{
      struct pcr_priv_data *priv;

      if (!rig)
            return -RIG_EINVAL;

      priv = (struct pcr_priv_data *) malloc(sizeof(struct pcr_priv_data));
      if (!priv) {
            /* whoops! memory shortage! */
            return -RIG_ENOMEM;
      }

      memset(priv, 0x00, sizeof(struct pcr_priv_data));

      /*
       * FIXME: how can we retrieve initial status?
       * The protocol doesn't allow this.
       */
      /* Some values are already at zero due to the memset above,
       * but we reinitialize here for sake of completeness
       */
      priv->country           = -1;
      priv->sync        = 0;
      priv->power       = RIG_POWER_OFF;

      priv->main_rcvr.last_att            = 0;
      priv->main_rcvr.last_agc            = 0;
      priv->main_rcvr.last_ctcss_sql      = 0;
      priv->main_rcvr.last_freq           = MHz(145);
      priv->main_rcvr.last_mode           = MD_FM;
      priv->main_rcvr.last_filter   = FLT_15kHz;
      priv->main_rcvr.volume        = 0.25;
      priv->main_rcvr.squelch       = 0.00;

      priv->sub_rcvr = priv->main_rcvr;
      priv->current_vfo = RIG_VFO_MAIN;
      
      rig->state.priv         = (rig_ptr_t) priv;
      rig->state.transceive   = RIG_TRN_OFF;

      return RIG_OK;
}

/*
 * PCR Generic pcr_cleanup routine
 * the serial port is closed by the frontend
 */
int
pcr_cleanup(RIG * rig)
{
      if (!rig)
            return -RIG_EINVAL;

      free(rig->state.priv);

      rig->state.priv = NULL;

      return RIG_OK;
}

/*
 * pcr_open
 * - send power on
 * - set auto update off
 *
 * Assumes rig!=NULL
 */
int
pcr_open(RIG * rig)
{
      struct rig_state *rs = &rig->state;
      struct pcr_priv_data *priv = (struct pcr_priv_data *) rs->priv;

      int err;
      int wanted_serial_rate;
      int startup_serial_rate;

      /* 
       * initial communication is at 9600bps for PCR 100/1000
       * once the power is on, the serial speed can be changed with G1xx
       */
    if (rig->caps->rig_model == RIG_MODEL_PCR1500 ||
            rig->caps->rig_model == RIG_MODEL_PCR2500)
        startup_serial_rate = 38400;
    else
        startup_serial_rate = 9600;

      wanted_serial_rate = rs->rigport.parm.serial.rate;
      rs->rigport.parm.serial.rate = startup_serial_rate;

      serial_setup(&rs->rigport);

      /* let the pcr settle and flush any remaining data*/
      usleep(100*1000);
      serial_flush(&rs->rigport);

      /* try powering on twice, sometimes the pcr answers H100 (off) */
      pcr_send(rig, "H101");
      usleep(100*250);

      pcr_send(rig, "H101");
      usleep(100*250);

      serial_flush(&rs->rigport);

      /* return RIG_ERJCTED if power is off */
      err = pcr_transaction(rig, "H1?");
      if (err != RIG_OK)
            return err;

      priv->power = RIG_POWER_ON;

      /* turn off auto update (just to be sure) */
      err = pcr_transaction(rig, "G300");
      if (err != RIG_OK)
            return err;

      /* set squelch and volume */
      err = pcr_set_squelch(rig, RIG_VFO_MAIN, priv->main_rcvr.squelch);
      if (err != RIG_OK)
            return err;

      err = pcr_set_volume(rig, RIG_VFO_MAIN, priv->main_rcvr.volume);
      if (err != RIG_OK)
            return err;

      /* get device features */
      pcr_get_info(rig);

      /* tune to last freq */
      err = pcr_set_freq(rig, RIG_VFO_MAIN, priv->main_rcvr.last_freq);
      if (err != RIG_OK)
            return err;

      if ((rig->state.vfo_list & RIG_VFO_SUB) == RIG_VFO_SUB) {
          err = pcr_set_squelch(rig, RIG_VFO_SUB, priv->sub_rcvr.squelch);
          if (err != RIG_OK)
              return err;

          err = pcr_set_volume(rig, RIG_VFO_SUB, priv->sub_rcvr.volume);
          if (err != RIG_OK)
              return err;

          err = pcr_set_freq(rig, RIG_VFO_SUB, priv->sub_rcvr.last_freq);
          if (err != RIG_OK)
              return err;

          pcr_set_vfo(rig, RIG_VFO_MAIN);
      }

      /* switch to different speed if requested */
      if (wanted_serial_rate != startup_serial_rate && wanted_serial_rate >= 300)
            return pcr_set_comm_speed(rig, wanted_serial_rate);

      return RIG_OK;
}

/*
 * pcr_close - send power off
 * Assumes rig!=NULL
 */
int
pcr_close(RIG * rig)
{
      struct pcr_priv_data *priv = (struct pcr_priv_data *) rig->state.priv;
      /* when the pcr turns itself off sometimes we receive
       * a malformed answer, so don't check for it.
       */
      priv->power = RIG_POWER_OFF;
      return pcr_send(rig, "H100");
}

/*
 * pcr_set_vfo
 *
 * Only useful on PCR-2500 which is a double receiver.
 * Simply remember what the current VFO is for RIG_VFO_CURR.
 */
int
pcr_set_vfo(RIG * rig, vfo_t vfo)
{
      struct pcr_priv_data *priv = (struct pcr_priv_data *) rig->state.priv;

      rig_debug(RIG_DEBUG_VERBOSE, "%s: vfo = %s\n",
              __func__, rig_strvfo(vfo));

    switch (vfo) {
        case RIG_VFO_MAIN:
        case RIG_VFO_SUB:
            break;

        default:
            return -RIG_EINVAL;
    }

    priv->current_vfo = vfo;

    return RIG_OK;
}

int
pcr_get_vfo(RIG * rig, vfo_t *vfo)
{
      struct pcr_priv_data *priv = (struct pcr_priv_data *) rig->state.priv;

    *vfo = priv->current_vfo;
    return RIG_OK;
}

/*
 * pcr_set_freq
 * Assumes rig!=NULL
 *
 * K0GMMMKKKHHHmmff00
 * GMMMKKKHHH is frequency GHz.MHz.KHz.Hz
 * mm is the mode setting
 *  00 = LSB
 *  01 = USB
 *  02 = AM
 *  03 = CW
 *  04 = Not used or Unknown
 *  05 = NFM
 *  06 = WFM
 * ff is the filter setting
 *  00 = 2.8 Khz (CW USB LSB AM)
 *  01 = 6.0 Khz (CW USB LSB AM NFM)
 *  02 = 15  Khz (AM NFM)
 *  03 = 50  Khz (AM NFM WFM)
 *  04 = 230 Khz (WFM)
 *
 */

int
pcr_set_freq(RIG * rig, vfo_t vfo, freq_t freq)
{
      struct pcr_priv_data *priv;
      struct pcr_rcvr *rcvr;
      unsigned char buf[20];
      int freq_len, err;

      rig_debug(RIG_DEBUG_VERBOSE, "%s: vfo = %s, freq = %.0f\n",
              __func__, rig_strvfo(vfo), freq);

      priv = (struct pcr_priv_data *) rig->state.priv;
      rcvr = is_sub_rcvr(rig, vfo) ? &priv->sub_rcvr : &priv->main_rcvr;

      freq_len = sprintf((char *) buf, "K%c%010" PRIll "0%c0%c00",
                     is_sub_rcvr(rig, vfo) ? '1':'0',
                     (int64_t) freq,
                     rcvr->last_mode, rcvr->last_filter);

      buf[freq_len] = '\0';

      err = pcr_transaction(rig, (char *) buf);
      if (err != RIG_OK)
            return err;

      rcvr->last_freq = freq;

      return RIG_OK;
}

/*
 * pcr_get_freq
 * frequency can't be read back, so report the last one that was set.
 * Assumes rig != NULL, freq != NULL
 */
int
pcr_get_freq(RIG * rig, vfo_t vfo, freq_t * freq)
{
      struct pcr_priv_data *priv = (struct pcr_priv_data *) rig->state.priv;
      struct pcr_rcvr *rcvr = is_sub_rcvr(rig, vfo) ? &priv->sub_rcvr : &priv->main_rcvr;

      *freq = rcvr->last_freq;

      return RIG_OK;
}

/*
 * pcr_set_mode
 * Assumes rig != NULL
 */

int
pcr_set_mode(RIG * rig, vfo_t vfo, rmode_t mode, pbwidth_t width)
{
      struct pcr_priv_data *priv = (struct pcr_priv_data *) rig->state.priv;
      struct pcr_rcvr *rcvr = is_sub_rcvr(rig, vfo) ? &priv->sub_rcvr : &priv->main_rcvr;

      unsigned char buf[20];
      int buf_len, err;
      int pcrmode, pcrfilter;

      rig_debug(RIG_DEBUG_VERBOSE, "%s: mode = %d (%s), width = %d\n",
              __func__, mode, rig_strrmode(mode), width);

      /* XXX? */
      if (mode == RIG_MODE_NONE)
            mode = RIG_MODE_FM;

      /*
       * not so sure about modes and filters
       * as I write this from manual (no testing) --SF
       */
      switch (mode) {
      case RIG_MODE_CW:
            pcrmode = MD_CW;
            break;
      case RIG_MODE_USB:
            pcrmode = MD_USB;
            break;
      case RIG_MODE_LSB:
            pcrmode = MD_LSB;
            break;
      case RIG_MODE_AM:
            pcrmode = MD_AM;
            break;
      case RIG_MODE_WFM:
            pcrmode = MD_WFM;
            break;
      case RIG_MODE_FM:
            pcrmode = MD_FM;
            break;
      default:
            rig_debug(RIG_DEBUG_ERR, "%s: unsupported mode %d\n",
                    __func__, mode);
            return -RIG_EINVAL;
      }

      if (width == RIG_PASSBAND_NORMAL)
            width = rig_passband_normal(rig, mode);

      rig_debug(RIG_DEBUG_VERBOSE, "%s: will set to %d\n",
              __func__, width);

      switch (width) {
            /* nop, pcrfilter already set
             * TODO: use rig_passband_normal instead?
             */
      case s_kHz(2.8):
            pcrfilter = FLT_2_8kHz;
            break;
      case s_kHz(6):
            pcrfilter = FLT_6kHz;
            break;
      case s_kHz(15):
            pcrfilter = FLT_15kHz;
            break;
      case s_kHz(50):
            pcrfilter = FLT_50kHz;
            break;
      case s_kHz(230):
            pcrfilter = FLT_230kHz;
            break;
      default:
            rig_debug(RIG_DEBUG_ERR, "%s: unsupported width %d\n",
                    __func__, width);
            return -RIG_EINVAL;
      }

      rig_debug(RIG_DEBUG_VERBOSE, "%s: filter set to %d (%c)\n",
              __func__, width, pcrfilter);

      buf_len = sprintf((char *) buf, "K%c%010" PRIll "0%c0%c00",
                  is_sub_rcvr(rig, vfo) ? '1':'0',
                  (int64_t) rcvr->last_freq, pcrmode, pcrfilter);

      err = pcr_transaction(rig, (char *) buf);
      if (err != RIG_OK)
            return err;

      rig_debug(RIG_DEBUG_VERBOSE, "%s: saving values\n",
              __func__);

      rcvr->last_mode = pcrmode;
      rcvr->last_filter = pcrfilter;

      return RIG_OK;
}

/*
 * hack! pcr_get_mode
 * Assumes rig!=NULL, mode!=NULL
 */
int
pcr_get_mode(RIG * rig, vfo_t vfo, rmode_t * mode, pbwidth_t * width)
{
      struct pcr_priv_data *priv;
      struct pcr_rcvr *rcvr;

      priv = (struct pcr_priv_data *) rig->state.priv;
      rcvr = is_sub_rcvr(rig, vfo) ? &priv->sub_rcvr : &priv->main_rcvr;

      rig_debug(RIG_DEBUG_VERBOSE, "%s, last_mode = %c, last_filter = %c\n",  __func__,
            rcvr->last_mode, rcvr->last_filter);

      switch (rcvr->last_mode) {
      case MD_CW:
            *mode = RIG_MODE_CW;
            break;
      case MD_USB:
            *mode = RIG_MODE_USB;
            break;
      case MD_LSB:
            *mode = RIG_MODE_LSB;
            break;
      case MD_AM:
            *mode = RIG_MODE_AM;
            break;
      case MD_WFM:
            *mode = RIG_MODE_WFM;
            break;
      case MD_FM:
            *mode = RIG_MODE_FM;
            break;
      default:
            rig_debug(RIG_DEBUG_ERR,
                    "pcr_get_mode: unsupported mode %d\n",
                    rcvr->last_mode);
            return -RIG_EINVAL;
      }

      switch (rcvr->last_filter) {
      case FLT_2_8kHz:
            *width = kHz(2.8);
            break;
      case FLT_6kHz:
            *width = kHz(6);
            break;
      case FLT_15kHz:
            *width = kHz(15);
            break;
      case FLT_50kHz:
            *width = kHz(50);
            break;
      case FLT_230kHz:
            *width = kHz(230);
            break;
      default:
            rig_debug(RIG_DEBUG_ERR, "pcr_get_mode: unsupported "
                    "width %d\n", rcvr->last_filter);
            return -RIG_EINVAL;
      }

      return RIG_OK;
}

/*
 * pcr_get_info
 * Assumes rig!=NULL
 */

const char *
pcr_get_info(RIG * rig)
{
      struct pcr_priv_data *priv = (struct pcr_priv_data *) rig->state.priv;

      char *country = NULL;

      pcr_transaction(rig, "G2?"); /* protocol */
      pcr_transaction(rig, "G4?"); /* firmware */
      pcr_transaction(rig, "GD?"); /* options */
      pcr_transaction(rig, "GE?"); /* country */

      /* translate country id to name */
      if (priv->country > -1) {
            int i;

            for (i = 0; i < PCR_COUNTRIES; i++) {
                  if (pcr_countries[i].id == priv->country) {
                        country = pcr_countries[i].name;
                        break;
                  }
            }

            if (country == NULL) {
                  country = "Unknown";
                  rig_debug(RIG_DEBUG_ERR,
                          "%s: unknown country code %#x, "
                          "please report to Hamlib maintainer\n",
                          __func__, priv->country);
            }
      } else {
            country = "Not queried yet";
      }

      sprintf(priv->info, "Firmware v%d.%d, Protocol v%d.%d, "
            "Optional devices:%s%s%s, Country: %s",
            priv->firmware / 10, priv->firmware % 10,
            priv->protocol / 10, priv->protocol % 10,
            priv->options & OPT_UT106 ? " DSP" : "",
            priv->options & OPT_UT107 ? " DARC" : "",
            priv->options ? "" : " none",
            country);

      rig_debug(RIG_DEBUG_VERBOSE, "%s: Firmware v%d.%d, Protocol v%d.%d, "
            "Optional devices:%s%s%s, Country: %s\n",
            __func__,
            priv->firmware / 10, priv->firmware % 10,
            priv->protocol / 10, priv->protocol % 10,
            priv->options & OPT_UT106 ? " DSP" : "",
            priv->options & OPT_UT107 ? " DARC" : "",
            priv->options ? "" : " none",
            country);

      return priv->info;
}



/* *********************************************************************** */
/* load of new stuff added in by Darren Hatcher - G0WCW                    */
/* *********************************************************************** */

/*
 * pcr_set_level called by generic set level handler
 *
 * We are missing a way to set the BFO on/off here,
 */

int
pcr_set_level(RIG * rig, vfo_t vfo, setting_t level, value_t val)
{
      int err = -RIG_ENIMPL;

      if (RIG_LEVEL_IS_FLOAT(level))
            rig_debug(RIG_DEBUG_VERBOSE, "%s: level = %d, val = %f\n",
                        __func__, level, val.f);
        else
            rig_debug(RIG_DEBUG_VERBOSE, "%s: level = %d, val = %d\n",
                        __func__, level, val.i);

      switch (level) {
      case RIG_LEVEL_ATT:
            /* This is only on or off, but hamlib forces to use set level
             * and pass as a float. Here we'll use 0 for off and 1 for on.
             * If someone finds out how to set the ATT for the PCR in dB, let us
             * know and the function can be changed to allow a true set level.
             *
             * Experiment shows it seems to have an effect, but unsure by how many db
             */
            return pcr_set_attenuator(rig, vfo, val.i);

      case RIG_LEVEL_IF:
            return pcr_set_if_shift(rig, vfo, val.i);

      case RIG_LEVEL_CWPITCH: /* BFO */
            return pcr_set_bfo_shift(rig, vfo, val.i);

      case RIG_LEVEL_AGC:
            /* Only AGC on/off supported by PCR's */
            return pcr_set_agc(rig, vfo, val.i==RIG_AGC_OFF ? 0 : 1);

      /* floats */

      case RIG_LEVEL_AF:
            /* "val" can be 0.0 to 1.0 float which is 0 to 255 levels
             * 0.3 seems to be ok in terms of loudness
             */
            return pcr_set_volume(rig, vfo, val.f);

      case RIG_LEVEL_SQL:
            /* "val" can be 0.0 to 1.0 float
             *      .... rig supports 0 to FF - look at function for
             *      squelch "bands"
             */
            return pcr_set_squelch(rig, vfo, val.f);

      case RIG_LEVEL_NR:
            /* This selectss the DSP unit - this isn't a level per se,
             * but in the manual it says that we have to switch it on first
             * we'll assume 1 is for the UT-106, and anything else as off
             *
             * Later on we can set if the DSP features are on or off in set_func
             */
            return pcr_set_dsp(rig, vfo, (int) val.f);
      }

      return err;
}

/*
 * pcr_get_level
 *
 * This needs a set of stored variables as the PCR doesn't return the current status of settings.
 * So we'll need to store them as we go along and keep them in sync.
 */

int
pcr_get_level(RIG * rig, vfo_t vfo, setting_t level, value_t * val)
{
      int err;
      struct pcr_priv_data *priv = (struct pcr_priv_data *) rig->state.priv;
      struct pcr_rcvr *rcvr = is_sub_rcvr(rig, vfo) ? &priv->sub_rcvr : &priv->main_rcvr;

//    rig_debug(RIG_DEBUG_TRACE, "%s: level = %d\n", __func__, level);

      switch (level) {
      case RIG_LEVEL_SQL:
            val->f = rcvr->squelch;
            return RIG_OK;

      case RIG_LEVEL_AF:
            val->f = rcvr->volume;
            return RIG_OK;

      case RIG_LEVEL_STRENGTH:
            if (priv->auto_update == 0) {
                  err = pcr_transaction(rig, is_sub_rcvr(rig, vfo) ? "I5?" : "I1?");
                  if (err != RIG_OK)
                        return err;
            }

            val->i = rig_raw2val(rcvr->raw_level, &rig->state.str_cal);
/*          rig_debug(RIG_DEBUG_TRACE, "%s, raw = %d, converted = %d\n",
                         __func__, rcvr->raw_level, val->i);
*/
            return RIG_OK;

      case RIG_LEVEL_RAWSTR:
            if (priv->auto_update == 0) {
                  err = pcr_transaction(rig, is_sub_rcvr(rig, vfo) ? "I5?" : "I1?");
                  if (err != RIG_OK)
                        return err;
            }

            val->i = rcvr->raw_level;
            return RIG_OK;

      case RIG_LEVEL_IF:
            val->i = rcvr->last_shift;
            return RIG_OK;

      case RIG_LEVEL_ATT:
            val->i = rcvr->last_att;
            return RIG_OK;

      case RIG_LEVEL_AGC:
            val->i = rcvr->last_agc;
            return RIG_OK;
      }

      return -RIG_ENIMPL;
}


/*
 * pcr_set_func
 * Assumes rig!=NULL, rig->state.priv!=NULL
 *
 * This is missing a way to call the set DSP noise reducer, as we don't have a func to call it
 * based on the flags in rig.h -> see also missing a flag for setting the BFO.
 */
int
pcr_set_func(RIG * rig, vfo_t vfo, setting_t func, int status)
{
      struct pcr_priv_data *priv = (struct pcr_priv_data *) rig->state.priv;
      struct pcr_rcvr *rcvr = is_sub_rcvr(rig, vfo) ? &priv->sub_rcvr : &priv->main_rcvr;

      rig_debug(RIG_DEBUG_VERBOSE, "%s: status = %ld, func = %d\n", __func__,
              status, func);

      switch (func) {
      case RIG_FUNC_NR: /* sets DSP noise reduction on or off */
            /* status = 00 for off or 01 for on
             * Note that the user should switch the DSP unit on first
             * using the set level function RIG_LEVEL_NR
             */
            if (status == 1)
                  return pcr_set_dsp_state(rig, vfo, 1);
            else
                  return pcr_set_dsp_state(rig, vfo, 0);
            break;

      case RIG_FUNC_ANF: /* DSP auto notch filter */
            if (status == 1)
                  return pcr_set_dsp_auto_notch(rig, vfo, 1);
            else
                  return pcr_set_dsp_auto_notch(rig, vfo, 0);
            break;

      case RIG_FUNC_NB: /* noise blanker */
            if (status == 0)
                  return pcr_set_nb(rig, vfo, 0);
            else
                  return pcr_set_nb(rig, vfo, 1);

            break;

      case RIG_FUNC_AFC: /* Tracking Filter */
            if (status == 0)
                  return pcr_set_afc(rig, vfo, 0);
            else
                  return pcr_set_afc(rig, vfo, 1);

            break;

      case RIG_FUNC_TSQL:
            if (rcvr->last_mode != MD_FM)
                  return -RIG_ERJCTED;

            if (status == 0)
                  return pcr_set_ctcss_sql(rig, vfo, 0);
            else
                  return pcr_set_ctcss_sql(rig, vfo, rcvr->last_ctcss_sql);

      case RIG_FUNC_VSC: /* Voice Scan Control */
            if (status == 0)
                  return pcr_set_vsc(rig, vfo, 0);
            else
                  return pcr_set_vsc(rig, vfo, 1);

            break;

      default:
            rig_debug(RIG_DEBUG_VERBOSE, "%s: default\n", __func__);
            return -RIG_EINVAL;
      }
}

/*
 * pcr_get_func
 * Assumes rig!=NULL, rig->state.priv!=NULL
 *
 * This will need similar variables/flags as get_level. The PCR doesn't offer much in the way of
 *  confirmation of current settings (according to the docs).
 */
int
pcr_get_func(RIG * rig, vfo_t vfo, setting_t func, int *status)
{
      /* stub here ... */
      return -RIG_ENIMPL;
}


int
pcr_set_ext_level(RIG *rig, vfo_t vfo, token_t token, value_t val)
{
      rig_debug(RIG_DEBUG_VERBOSE, "%s: tok = %d\n", __func__, token);

      switch (token) {

      case TOK_EL_ANL: /* automatic noise limiter */

            return pcr_set_anl(rig, vfo, (0 == val.i) ? 0 : 1);

      case TOK_EL_DIVERSITY: /* antenna diversity */

            return pcr_set_diversity(rig, vfo, (0 == val.i) ? 0 : 2);

      default:
            rig_debug(RIG_DEBUG_VERBOSE, "%s: unknown token: %d\n", __func__, token);
            return -RIG_EINVAL;
      }

      return RIG_OK;
}


/* --------------------------------------------------------------------------------------- */
/* The next functions are all "helper types". These are called by the base functions above */
/* --------------------------------------------------------------------------------------- */

/*
 * Asks if the rig is ok = G0? response is G000 if ok or G001 if not
 *
 * Is only useful in fast transfer mode (when the CR/LF is stripped off all commands) ...
 * but also works on standard mode.
 */
static int
pcr_check_ok(RIG * rig)
{
      rig_debug(RIG_DEBUG_TRACE, "%s\n", __func__);
      return pcr_transaction(rig, "G0?");
}

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

      return vfo == RIG_VFO_SUB ||
              (vfo == RIG_VFO_CURR && priv->current_vfo == RIG_VFO_SUB);
}

static int
pcr_set_level_cmd(RIG * rig, const char *base, int level)
{
      char buf[12];

      rig_debug(RIG_DEBUG_TRACE, "%s: base is %s, level is %d\n",
              __func__, base, level);

      if (level < 0x0) {
            rig_debug(RIG_DEBUG_ERR, "%s: too low: %d\n",
                  __func__, level);
            return -RIG_EINVAL;
      } else if (level > 0xff) {
            rig_debug(RIG_DEBUG_ERR, "%s: too high: %d\n",
                  __func__, level);
            return -RIG_EINVAL;
      }

      snprintf(buf, 12, "%s%02X", base, level);
      buf[11] = '\0';
      return pcr_transaction(rig, buf);
}

/*
 * Sets the volume of the rig to the level specified in the level integer.
 * Format is J40xx - where xx is 00 to FF in hex, and specifies 255 volume levels
 */

static int
pcr_set_volume(RIG * rig, vfo_t vfo, float level)
{
      int err;
      struct pcr_priv_data *priv = (struct pcr_priv_data *) rig->state.priv;
      struct pcr_rcvr *rcvr = is_sub_rcvr(rig, vfo) ? &priv->sub_rcvr : &priv->main_rcvr;

      rig_debug(RIG_DEBUG_TRACE, "%s: level = %f\n", __func__, level);

      err = pcr_set_level_cmd(rig, is_sub_rcvr(rig, vfo) ? "J60":"J40", level * 0xff);
      if (err == RIG_OK)
            rcvr->volume = level;

      return err;
}

/*
 * pcr_set_squelch
 * Assumes rig!=NULL, rig->state.priv!=NULL
 *
 * Format is J41xx - where xx is 00 to FF in hex, and specifies 255 squelch levels
 *
 * Sets the squelch of the rig to the level specified in the level integer.
 * There are some bands though ...
 *    00    Tone squelch clear and squelch open
 *    01-3f Squelch open
 *    40-7f Noise squelch
 *    80-ff Noise squelch + S meter squelch ...
 *           Comparative S level = (squelch setting - 128) X 2
 *
 *    Could do with some constatnts to add together to allow better (and more accurate)
 *    use of Hamlib API. Otherwise may get unexpected squelch settings if have to do by hand.
 */

static int
pcr_set_squelch(RIG * rig, vfo_t vfo, float level)
{
      int err;
      struct pcr_priv_data *priv = (struct pcr_priv_data *) rig->state.priv;
      struct pcr_rcvr *rcvr = is_sub_rcvr(rig, vfo) ? &priv->sub_rcvr : &priv->main_rcvr;

      rig_debug(RIG_DEBUG_TRACE, "%s: level = %f\n", __func__, level);

      err = pcr_set_level_cmd(rig, is_sub_rcvr(rig, vfo) ? "J61":"J41", level * 0xff);
      if (err == RIG_OK)
            rcvr->squelch = level;

      return err;
}


/*
 * pcr_set_if_shift
 * Assumes rig!=NULL, rig->state.priv!=NULL
 *
 * Sets the IF shift  of the rig to the level specified in the level integer.
 *    IF-SHIFT position (in 256 stages, 80 = centre):
 *
 *          < 80  Minus shift (in 10 Hz steps)
 *          > 80  Plus shift (in 10 Hz steps)
 *            80  Centre
 *
 * Format is J43xx - where xx is 00 to FF in hex
 *
 */
int
pcr_set_if_shift(RIG * rig, vfo_t vfo, int level)
{
      int err;
      struct pcr_priv_data *priv = (struct pcr_priv_data *) rig->state.priv;
      struct pcr_rcvr *rcvr = is_sub_rcvr(rig, vfo) ? &priv->sub_rcvr : &priv->main_rcvr;

      rig_debug(RIG_DEBUG_TRACE, "%s: level is %d\n", __func__, level);

      err = pcr_set_level_cmd(rig, is_sub_rcvr(rig, vfo) ? "J63":"J43", (level / 10) + 0x80);
      if (err == RIG_OK)
            rcvr->last_shift = level;

      return err;
}

/*
 * pcr_set_agc
 * Assumes rig!=NULL, rig->state.priv!=NULL
 *
 * Sets the AGC on or off based on the level specified in the level integer.
 *    00 = off, 01 (non zero) is on
 *
 * Format is J45xx - where xx is 00 to 01 in hex
 *
 */
int
pcr_set_agc(RIG * rig, vfo_t vfo, int status)
{
      int err;
      struct pcr_priv_data *priv = (struct pcr_priv_data *) rig->state.priv;
      struct pcr_rcvr *rcvr = is_sub_rcvr(rig, vfo) ? &priv->sub_rcvr : &priv->main_rcvr;

      rig_debug(RIG_DEBUG_VERBOSE, "%s: status = %d\n", __func__, status);

      err = pcr_set_level_cmd(rig, is_sub_rcvr(rig, vfo) ? "J65":"J45", status ? 1 : 0);
      if (err == RIG_OK)
            rcvr->last_agc = status ? 1 : 0;

      return err;
}

/*
 * pcr_set_afc(RIG *rig, vfo_t vfo, int level);
 * Assumes rig!=NULL, rig->state.priv!=NULL
 *
 * Sets the Tracking Filter on or off based on the status argument.
 *    00 = on, 01 (non zero) is off
 *
 * Format is LD820xx - where xx is 00 to ff in hex
 *
 */
int
pcr_set_afc(RIG * rig, vfo_t vfo, int status)
{
      rig_debug(RIG_DEBUG_VERBOSE, "%s: status = %d\n", __func__, status);
      return pcr_set_level_cmd(rig, "LD820", status ? 0 : 1);
}

/*
 * pcr_set_nb(RIG *rig, vfo_t vfo, int level);
 * Assumes rig!=NULL, rig->state.priv!=NULL
 *
 * Sets the noise blanker on or off based on the level specified in the level integer.
 *    00 = off, 01 (non zero) is on
 *
 * Format is J46xx - where xx is 00 to 01 in hex
 *
 */
int
pcr_set_nb(RIG * rig, vfo_t vfo, int status)
{
      rig_debug(RIG_DEBUG_VERBOSE, "%s: status = %d\n", __func__, status);
      return pcr_set_level_cmd(rig, is_sub_rcvr(rig, vfo) ? "J66":"J46", status ? 1 : 0);
}

/* Automatic Noise Limiter - J4Dxx - 00 off, 01 on */
int
pcr_set_anl(RIG * rig, vfo_t vfo, int status)
{
      rig_debug(RIG_DEBUG_VERBOSE, "%s: status = %d\n", __func__, status);
      return pcr_set_level_cmd(rig, "J4D", status ? 1 : 0);
}


/* Antenna Diversity/Tuners - J00xx - 
 *      02=Dual Diversity ON, 1 display using 2 tuners
 *      01=Single Diversity OFF, 1 display using 1 tuner
 *      00=OFF Diversity OFF, 2 displays using 2 tuners
 */
int
pcr_set_diversity(RIG * rig, vfo_t vfo, int status)
{
      rig_debug(RIG_DEBUG_VERBOSE, "%s: status = %d\n", __func__, status);

      if (status < 0 || status > 2)
          return -RIG_EINVAL;

      return pcr_set_level_cmd(rig, "J00", status);
}

/*
 * pcr_set_attenuator(RIG *rig, vfo_t vfo, int level);
 * Assumes rig!=NULL, rig->state.priv!=NULL
 *
 * Sets the attenuator on or off based on the level specified in the level integer.
 *    00 = off, 01 (non zero) is on
 * The attenuator seems to be fixed at ~ -20dB
 *
 * Format is J47xx - where xx is 00 to 01 in hex
 *
 */

int
pcr_set_attenuator(RIG * rig, vfo_t vfo, int status)
{
      int err;
      struct pcr_priv_data *priv = (struct pcr_priv_data *) rig->state.priv;
      struct pcr_rcvr *rcvr = is_sub_rcvr(rig, vfo) ? &priv->sub_rcvr : &priv->main_rcvr;

      rig_debug(RIG_DEBUG_VERBOSE, "%s: status = %d\n", __func__, status);

      err = pcr_set_level_cmd(rig, is_sub_rcvr(rig, vfo) ? "J67":"J47", status ? 1 : 0);
      if (err == RIG_OK)
            rcvr->last_att = status;

      return err;
}

/*
 * pcr_set_bfo_shift
 * Assumes rig!=NULL, rig->state.priv!=NULL
 *
 * Sets the BFO of the rig to the level specified in the level integer.
 *    BFO-SHIFT position (in 256 stages, 80 = centre):
 *
 *          < 80  Minus shift (in 10 Hz steps)
 *          > 80  Plus shift (in 10 Hz steps)
 *            80  Centre
 *
 * Format is J4Axx - where xx is 00 to FF in hex, and specifies 255 levels
 * XXX command undocumented?
 */
int
pcr_set_bfo_shift(RIG * rig, vfo_t vfo, int level)
{
      rig_debug(RIG_DEBUG_TRACE, "%s: level is %d\n", __func__, level);
      return pcr_set_level_cmd(rig, is_sub_rcvr(rig, vfo) ? "J6A":"J4A", 0x80 + level/10);
}

/*
 * pcr_set_dsp(RIG *rig, vfo_t vfo, int level);
 * Assumes rig!=NULL, rig->state.priv!=NULL
 *
 * Sets the DSP to UT106 (01) or off (non 01)
 *
 */
int
pcr_set_dsp(RIG * rig, vfo_t vfo, int level)
{
      rig_debug(RIG_DEBUG_TRACE, "%s: level is %d\n", __func__, level);
      if (is_sub_rcvr(rig, vfo))
              return -RIG_ENAVAIL;
      return pcr_set_level_cmd(rig, "J80", level);
}

/*
 * pcr_set_dsp_state(RIG *rig, vfo_t vfo, int level);
 * Assumes rig!=NULL, rig->state.priv!=NULL
 *
 * Sets the DSP on or off (> 0 = on, 0 = off)
 *
 */

int
pcr_set_dsp_state(RIG * rig, vfo_t vfo, int level)
{
      rig_debug(RIG_DEBUG_TRACE, "%s: level is %d\n", __func__, level);
      if (is_sub_rcvr(rig, vfo))
              return -RIG_ENAVAIL;
      return pcr_set_level_cmd(rig, "J81", level);
}

/*
 * pcr_set_dsp_noise_reducer(RIG *rig, vfo_t vfo, int level);
 * Assumes rig!=NULL, rig->state.priv!=NULL
 *
 * Sets the DSP noise reducer on or off (0x01 = on, 0x00 = off)
 *  the level of NR set by values 0x01 to 0x10 (1 to 16 inclusive)
 */

#if 0 /* unused; re-enabled as needed. */
int
pcr_set_dsp_noise_reducer(RIG * rig, vfo_t vfo, int level)
{
      rig_debug(RIG_DEBUG_TRACE, "%s: level is %d\n", __func__, level);
      if (is_sub_rcvr(rig, vfo))
              return -RIG_ENAVAIL;
      return pcr_set_level_cmd(rig, "J82", level);
}
#endif /* unused */

/*
 * pcr_set_dsp_auto_notch(RIG *rig, vfo_t vfo, int level);
 * Assumes rig!=NULL, rig->state.priv!=NULL
 *
 * Sets the auto notch on or off (1 = on, 0 = off)
 */

int
pcr_set_dsp_auto_notch(RIG * rig, vfo_t vfo, int status) // J83xx
{
      rig_debug(RIG_DEBUG_TRACE, "%s: level is %d\n", __func__, status);
      if (is_sub_rcvr(rig, vfo))
              return -RIG_ENAVAIL;
      return pcr_set_level_cmd(rig, "J83", status ? 1 : 0);
}


int
pcr_set_vsc(RIG * rig, vfo_t vfo, int status) // J50xx
{
      /* Not sure what VSC for so skipping the function here ... */
      return pcr_set_level_cmd(rig, is_sub_rcvr(rig, vfo) ? "J70":"J50", status ? 1 : 0);
}

int pcr_get_ctcss_sql(RIG *rig, vfo_t vfo, tone_t *tone)
{
      struct pcr_priv_data *priv = (struct pcr_priv_data *) rig->state.priv;
      struct pcr_rcvr *rcvr = is_sub_rcvr(rig, vfo) ? &priv->sub_rcvr : &priv->main_rcvr;

      *tone = rcvr->last_ctcss_sql;
      return RIG_OK;
}

int pcr_set_ctcss_sql(RIG *rig, vfo_t vfo, tone_t tone)
{
      int i, err;
      struct pcr_priv_data *priv = (struct pcr_priv_data *) rig->state.priv;
      struct pcr_rcvr *rcvr = is_sub_rcvr(rig, vfo) ? &priv->sub_rcvr : &priv->main_rcvr;

      rig_debug(RIG_DEBUG_VERBOSE, "%s: tone = %d\n", __func__, tone);

      if (tone == 0)
            return pcr_transaction(rig, is_sub_rcvr(rig, vfo) ? "J7100":"J5100");

      for (i = 0; rig->caps->ctcss_list[i] != 0; i++) {
            if (rig->caps->ctcss_list[i] == tone)
                        break;
      }

      rig_debug(RIG_DEBUG_TRACE, "%s: index = %d, tone = %d\n",
                  __func__, i, rig->caps->ctcss_list[i]);

      if (rig->caps->ctcss_list[i] != tone)
            return -RIG_EINVAL;

      err = pcr_set_level_cmd(rig, is_sub_rcvr(rig, vfo) ? "J71":"J51", i + 1);
      if (err == RIG_OK)
            rcvr->last_ctcss_sql = tone;

      return RIG_OK;
}

int pcr_get_dcs_sql(RIG *rig, vfo_t vfo, tone_t *tone)
{
      struct pcr_priv_data *priv = (struct pcr_priv_data *) rig->state.priv;
      struct pcr_rcvr *rcvr = is_sub_rcvr(rig, vfo) ? &priv->sub_rcvr : &priv->main_rcvr;

      *tone = rcvr->last_dcs_sql;
      return RIG_OK;
}

int pcr_set_dcs_sql(RIG *rig, vfo_t vfo, tone_t tone)
{
      int i, err;
      struct pcr_priv_data *priv = (struct pcr_priv_data *) rig->state.priv;
      struct pcr_rcvr *rcvr = is_sub_rcvr(rig, vfo) ? &priv->sub_rcvr : &priv->main_rcvr;

      rig_debug(RIG_DEBUG_VERBOSE, "%s: tone = %d\n", __func__, tone);

      if (tone == 0)
            return pcr_transaction(rig, is_sub_rcvr(rig, vfo) ? "J720000":"J520000");

      for (i = 0; rig->caps->dcs_list[i] != 0; i++) {
            if (rig->caps->dcs_list[i] == tone)
                        break;
      }

      rig_debug(RIG_DEBUG_TRACE, "%s: index = %d, tone = %d\n",
                  __func__, i, rig->caps->dcs_list[i]);

      if (rig->caps->dcs_list[i] != tone)
            return -RIG_EINVAL;

      err = pcr_set_level_cmd(rig, is_sub_rcvr(rig, vfo) ? "J7200":"J5200", i + 1);
      if (err == RIG_OK)
            rcvr->last_dcs_sql = tone;

      return RIG_OK;
}

int pcr_set_trn(RIG * rig, int trn)
{
      struct pcr_priv_data *priv = (struct pcr_priv_data *) rig->state.priv;

      rig_debug(RIG_DEBUG_VERBOSE, "%s: trn = %d\n", __func__, trn);

      if (trn == RIG_TRN_OFF) {
            priv->auto_update = 0;
            return pcr_transaction(rig, "G300");
      }
      else if (trn == RIG_TRN_RIG) {
            priv->auto_update = 1;
            return pcr_send(rig, "G301");
      }
      else
            return -RIG_EINVAL;
}

int pcr_decode_event(RIG *rig)
{
      int err;
      char buf[4];

      /* XXX check this */
      err = pcr_read_block(rig, buf, 4);
      if (err == 4)
            return pcr_parse_answer(rig, buf, 4);

      return RIG_OK;
}

int pcr_set_powerstat(RIG * rig, powerstat_t status)
{
      struct pcr_priv_data *priv = (struct pcr_priv_data *) rig->state.priv;

      if (status == priv->power)
          return RIG_OK;

      if (status == RIG_POWER_ON)
            return pcr_open(rig);
      else if (status == RIG_POWER_OFF)
            return pcr_close(rig);

      return -RIG_ENIMPL;
}

int pcr_get_powerstat(RIG * rig, powerstat_t *status)
{
      struct pcr_priv_data *priv = (struct pcr_priv_data *) rig->state.priv;
      int err;

      /* return RIG_ERJCTED if power is off */
      err = pcr_transaction(rig, "H1?");
      if (err != RIG_OK && err != -RIG_ERJCTED)
            return err;

      priv->power = err == RIG_OK ? RIG_POWER_ON : RIG_POWER_OFF;

      *status = priv->power;

      return RIG_OK;
}

int pcr_get_dcd(RIG * rig, vfo_t vfo, dcd_t *dcd)
{
      struct pcr_priv_data *priv = (struct pcr_priv_data *) rig->state.priv;
      struct pcr_rcvr *rcvr = is_sub_rcvr(rig, vfo) ? &priv->sub_rcvr : &priv->main_rcvr;
      int err;

      if (priv->auto_update == 0) {
          err = pcr_transaction(rig, is_sub_rcvr(rig, vfo) ? "I4?" : "I0?");
          if (err != RIG_OK)
              return err;
      }

      /* 04 = Closed, 07 = Open
       *
       * Bit 0: busy
       * Bit 1: AF open (CTCSS open)
       * Bit 2: VSC open
       * Bit 3: RX error (not ready to receive)
       */
      *dcd = rcvr->squelch_status & 0x02 ? RIG_DCD_ON : RIG_DCD_OFF;

      return RIG_OK;
}

/* *********************************************************************************************
 * int pcr_set_comm_mode(RIG *rig, int mode_type);  // Set radio to fast/diagnostic mode  G3xx
 * int pcr_soft_reset(RIG *rig);                    // Ask rig to reset itself            H0xx
 ********************************************************************************************* */

DECLARE_INITRIG_BACKEND(pcr)
{
      rig_debug(RIG_DEBUG_VERBOSE, "pcr: init called\n");

      rig_register(&pcr100_caps);
      rig_register(&pcr1000_caps);
      rig_register(&pcr1500_caps);
      rig_register(&pcr2500_caps);

      return RIG_OK;
}

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