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ft817.c

/*
 * hamlib - (C) Frank Singleton 2000,2001 (vk3fcs@ix.netcom.com)
 *
 * ft817.c - (C) Chris Karpinsky 2001 (aa1vl@arrl.net)
 * This shared library provides an API for communicating
 * via serial interface to an FT-817 using the "CAT" interface.
 * The starting point for this code was Frank's ft847 implementation.
 *
 * Then, Tommi OH2BNS improved the code a lot in the framework of the
 * FT-857 backend. These improvements have now (August 2005) been
 * copied back and adopted for the FT-817.
 *
 *
 *    $Id: ft817.c,v 1.12 2005/09/04 10:44:22 csete Exp $  
 *
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2 of the License, or (at your option) any later version.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
 *
 */

/*
 * Unimplemented features supported by the FT-817:
 *
 *   - RIT ON/OFF without touching the RIT offset. This would
 *     need frontend support (eg. a new RIG_FUNC_xxx)
 *
 *   - RX status command returns info that is not used:
 *      - discriminator centered (yes/no flag)
 *      - received ctcss/dcs matched (yes/no flag)                     TBC
 *
 *   - TX status command returns info that is not used:
 *      - split on/off flag; actually this could have been used
 *        for get_split_vfo, but the flag is valid only when
 *        PTT is ON.
 *      - high swr flag
 *
 * Todo / tocheck list (oz9aec):
 * - check power meter reading, add power2mW, mW2power
 * - test get_dcd; rigctl does not support it?
 * - squelch
 * - the many "fixme" stuff around
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <stdlib.h>
#include <string.h>     /* String function definitions */
#include <unistd.h>     /* UNIX standard function definitions */

#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif

#include "hamlib/rig.h"
#include "serial.h"
#include "yaesu.h"
#include "ft817.h"
#include "misc.h"
#include "tones.h"
#include "bandplan.h"


/* Native ft817 cmd set prototypes. These are READ ONLY as each */
/* rig instance will copy from these and modify if required . */
/* Complete sequences (1) can be read and used directly as a cmd sequence . */
/* Incomplete sequences (0) must be completed with extra parameters */
/* eg: mem number, or freq etc.. */
static const yaesu_cmd_set_t ncmd[] = {
      { 1, { 0x00, 0x00, 0x00, 0x00, 0x00 } }, /* lock on */
      { 1, { 0x00, 0x00, 0x00, 0x00, 0x80 } }, /* lock off */
      { 1, { 0x00, 0x00, 0x00, 0x00, 0x08 } }, /* ptt on */
      { 1, { 0x00, 0x00, 0x00, 0x01, 0x88 } }, /* ptt off */
      { 0, { 0x00, 0x00, 0x00, 0x00, 0x01 } }, /* set freq */
      { 1, { 0x00, 0x00, 0x00, 0x00, 0x07 } }, /* mode set main LSB */
      { 1, { 0x01, 0x00, 0x00, 0x00, 0x07 } }, /* mode set main USB */
      { 1, { 0x02, 0x00, 0x00, 0x00, 0x07 } }, /* mode set main CW */
      { 1, { 0x03, 0x00, 0x00, 0x00, 0x07 } }, /* mode set main CWR */
      { 1, { 0x04, 0x00, 0x00, 0x00, 0x07 } }, /* mode set main AM */
      { 1, { 0x08, 0x00, 0x00, 0x00, 0x07 } }, /* mode set main FM */
      { 1, { 0x88, 0x00, 0x00, 0x00, 0x07 } }, /* mode set main FM-N */
      { 1, { 0x0a, 0x00, 0x00, 0x00, 0x07 } }, /* mode set main DIG */
      { 1, { 0x0c, 0x00, 0x00, 0x00, 0x07 } }, /* mode set main PKT */
      { 1, { 0x00, 0x00, 0x00, 0x00, 0x05 } }, /* clar on */
      { 1, { 0x00, 0x00, 0x00, 0x00, 0x85 } }, /* clar off */
      { 0, { 0x00, 0x00, 0x00, 0x00, 0xf5 } }, /* set clar freq */
      { 1, { 0x00, 0x00, 0x00, 0x00, 0x81 } }, /* toggle vfo a/b */
      { 1, { 0x00, 0x00, 0x00, 0x00, 0x02 } }, /* split on */
      { 1, { 0x00, 0x00, 0x00, 0x00, 0x82 } }, /* split off */
      { 1, { 0x09, 0x00, 0x00, 0x00, 0x09 } }, /* set RPT shift MINUS */
      { 1, { 0x49, 0x00, 0x00, 0x00, 0x09 } }, /* set RPT shift PLUS */
      { 1, { 0x89, 0x00, 0x00, 0x00, 0x09 } }, /* set RPT shift SIMPLEX */
      { 0, { 0x00, 0x00, 0x00, 0x00, 0xf9 } }, /* set RPT offset freq */
      { 1, { 0x0a, 0x00, 0x00, 0x00, 0x0a } }, /* set DCS on */
      { 1, { 0x2a, 0x00, 0x00, 0x00, 0x0a } }, /* set CTCSS on */
      { 1, { 0x4a, 0x00, 0x00, 0x00, 0x0a } }, /* set CTCSS encoder on */
      { 1, { 0x8a, 0x00, 0x00, 0x00, 0x0a } }, /* set CTCSS/DCS off */
      { 0, { 0x00, 0x00, 0x00, 0x00, 0x0b } }, /* set CTCSS tone */
      { 0, { 0x00, 0x00, 0x00, 0x00, 0x0c } }, /* set DCS code */
      { 1, { 0x00, 0x00, 0x00, 0x00, 0xe7 } }, /* get RX status  */
      { 1, { 0x00, 0x00, 0x00, 0x00, 0xf7 } }, /* get TX status  */
      { 1, { 0x00, 0x00, 0x00, 0x00, 0x03 } }, /* get FREQ and MODE status */
      { 1, { 0x00, 0x00, 0x00, 0x00, 0x00 } }, /* pwr wakeup sequence */
      { 1, { 0x00, 0x00, 0x00, 0x00, 0x0f } }, /* pwr on */
      { 1, { 0x00, 0x00, 0x00, 0x00, 0x8f } }, /* pwr off */
};

static const tone_t static_ft817_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   
};

#define FT817_ALL_RX_MODES      (RIG_MODE_AM|RIG_MODE_CW|RIG_MODE_CWR|RIG_MODE_PKTFM|\
                                 RIG_MODE_USB|RIG_MODE_LSB|RIG_MODE_RTTY|RIG_MODE_FM)
#define FT817_SSB_CW_RX_MODES   (RIG_MODE_CW|RIG_MODE_CWR|RIG_MODE_USB|RIG_MODE_LSB|RIG_MODE_RTTY)
#define FT817_CWN_RX_MODES      (RIG_MODE_CW|RIG_MODE_CWR|RIG_MODE_RTTY)
#define FT817_AM_FM_RX_MODES    (RIG_MODE_AM|RIG_MODE_FM|RIG_MODE_PKTFM)

#define FT817_OTHER_TX_MODES    (RIG_MODE_CW|RIG_MODE_CWR|RIG_MODE_USB|\
                                 RIG_MODE_LSB|RIG_MODE_RTTY|RIG_MODE_FM)
#define FT817_AM_TX_MODES       (RIG_MODE_AM)

#define FT817_VFO_ALL           (RIG_VFO_A|RIG_VFO_B)
#define FT817_ANTS              0

const struct rig_caps ft817_caps = {
      .rig_model =            RIG_MODEL_FT817,
      .model_name =             "FT-817", 
      .mfg_name =             "Yaesu", 
      .version =        "0.2", 
      .copyright =            "LGPL",
      .status =         RIG_STATUS_BETA,
      .rig_type =             RIG_TYPE_TRANSCEIVER,
      .ptt_type =             RIG_PTT_RIG,
      .dcd_type =             RIG_DCD_RIG,
      .port_type =            RIG_PORT_SERIAL,
      .serial_rate_min =      4800,
      .serial_rate_max =      38400,
      .serial_data_bits =     8,
      .serial_stop_bits =     2,
      .serial_parity =  RIG_PARITY_NONE,
      .serial_handshake =     RIG_HANDSHAKE_NONE, 
      .write_delay =            FT817_WRITE_DELAY,
      .post_write_delay =     FT817_POST_WRITE_DELAY,
      .timeout =        FT817_TIMEOUT,
      .retry =          0, 
      .has_get_func =         RIG_FUNC_NONE,
      .has_set_func =   RIG_FUNC_LOCK | RIG_FUNC_TONE | RIG_FUNC_TSQL,
      .has_get_level =  RIG_LEVEL_STRENGTH | RIG_LEVEL_RAWSTR | RIG_LEVEL_RFPOWER,
      .has_set_level =  RIG_LEVEL_NONE,
      .has_get_parm =   RIG_PARM_NONE,
      .has_set_parm =   RIG_PARM_NONE,
      .level_gran =             {},                     /* granularity */
      .parm_gran =            {},
      .ctcss_list =     static_common_ctcss_list,
      .dcs_list =             static_ft817_dcs_list,   /* only 104 out of 106 supported */
      .preamp =         { RIG_DBLST_END, },
      .attenuator =     { RIG_DBLST_END, },
      .max_rit =        Hz(9990),
      .max_xit =        Hz(0),
      .max_ifshift =            Hz(0),
      .vfo_ops =              RIG_OP_TOGGLE,
      .targetable_vfo =       0,
      .transceive =             RIG_TRN_OFF,
      .bank_qty =             0,
      .chan_desc_sz =   0,
      .chan_list =            { RIG_CHAN_END, },

      .rx_range_list1 =  { 
            {kHz(100),MHz(56), FT817_ALL_RX_MODES,-1,-1},
            {MHz(76), MHz(108),RIG_MODE_WFM,      -1,-1},
            {MHz(118),MHz(164),FT817_ALL_RX_MODES,-1,-1},
            {MHz(420),MHz(470),FT817_ALL_RX_MODES,-1,-1},
            RIG_FRNG_END, 
      },
      .tx_range_list1 =  {
            FRQ_RNG_HF(1, FT817_OTHER_TX_MODES, W(0.5), W(5), FT817_VFO_ALL, FT817_ANTS),
            FRQ_RNG_HF(1, FT817_AM_TX_MODES, W(0.5),W(1.5), FT817_VFO_ALL, FT817_ANTS),

            FRQ_RNG_6m(1, FT817_OTHER_TX_MODES, W(0.5), W(5), FT817_VFO_ALL, FT817_ANTS),
            FRQ_RNG_6m(1, FT817_AM_TX_MODES, W(0.5),W(1.5), FT817_VFO_ALL, FT817_ANTS),

            FRQ_RNG_2m(1, FT817_OTHER_TX_MODES, W(0.5),W(5),FT817_VFO_ALL,FT817_ANTS),
            FRQ_RNG_2m(1, FT817_AM_TX_MODES, W(0.5),W(1.5),FT817_VFO_ALL,FT817_ANTS),

            FRQ_RNG_70cm(1, FT817_OTHER_TX_MODES, W(0.5),W(5),FT817_VFO_ALL,FT817_ANTS),
            FRQ_RNG_70cm(1, FT817_AM_TX_MODES, W(0.5),W(1.5),FT817_VFO_ALL,FT817_ANTS),

            RIG_FRNG_END, 
      },


      .rx_range_list2 =  { 
            {kHz(100),MHz(56), FT817_ALL_RX_MODES,-1,-1},
            {MHz(76), MHz(108),RIG_MODE_WFM,      -1,-1},
            {MHz(118),MHz(164),FT817_ALL_RX_MODES,-1,-1},
            {MHz(420),MHz(470),FT817_ALL_RX_MODES,-1,-1},
            RIG_FRNG_END, 
      },

      .tx_range_list2 =  {
            FRQ_RNG_HF(2, FT817_OTHER_TX_MODES, W(0.5), W(5), FT817_VFO_ALL, FT817_ANTS),
            FRQ_RNG_HF(2, FT817_AM_TX_MODES, W(0.5),W(1.5), FT817_VFO_ALL, FT817_ANTS),
      /* FIXME: 60 meters in US version */

            FRQ_RNG_6m(2, FT817_OTHER_TX_MODES, W(0.5), W(5), FT817_VFO_ALL, FT817_ANTS),
            FRQ_RNG_6m(2, FT817_AM_TX_MODES, W(0.5),W(1.5), FT817_VFO_ALL, FT817_ANTS),

            FRQ_RNG_2m(2, FT817_OTHER_TX_MODES, W(0.5),W(5),FT817_VFO_ALL,FT817_ANTS),
            FRQ_RNG_2m(2, FT817_AM_TX_MODES, W(0.5),W(1.5),FT817_VFO_ALL,FT817_ANTS),

            FRQ_RNG_70cm(2, FT817_OTHER_TX_MODES, W(0.5),W(5),FT817_VFO_ALL,FT817_ANTS),
            FRQ_RNG_70cm(2, FT817_AM_TX_MODES, W(0.5),W(1.5),FT817_VFO_ALL,FT817_ANTS),

            RIG_FRNG_END, 
      },

      .tuning_steps =  {
            {FT817_SSB_CW_RX_MODES,Hz(10)},
            {FT817_AM_FM_RX_MODES|RIG_MODE_WFM,Hz(100)},
            RIG_TS_END,
      },  

      .filters = {
            {FT817_SSB_CW_RX_MODES, kHz(2.2)},  /* normal passband */
            {FT817_CWN_RX_MODES, 500},          /* CW and RTTY narrow */
            {RIG_MODE_AM, kHz(6)},              /* AM normal */
            {RIG_MODE_FM|RIG_MODE_PKTFM, kHz(9)},
            {RIG_MODE_WFM, kHz(15)},
            RIG_FLT_END,
      },

      .priv =           NULL,
      .rig_init =             ft817_init,
      .rig_cleanup =          ft817_cleanup, 
      .rig_open =             ft817_open, 
      .rig_close =            ft817_close, 
      .set_freq =             ft817_set_freq,
      .get_freq =             ft817_get_freq,
      .set_mode =             ft817_set_mode,
      .get_mode =             ft817_get_mode,
      .set_vfo =        NULL,
      .get_vfo =        NULL,
      .set_ptt =        ft817_set_ptt,
      .get_ptt =        ft817_get_ptt,
      .get_dcd =        ft817_get_dcd,
      .set_rptr_shift =       ft817_set_rptr_shift,
      .get_rptr_shift =       NULL,
      .set_rptr_offs =  ft817_set_rptr_offs,
      .get_rptr_offs =  NULL,
      .set_split_freq =       NULL,
      .get_split_freq =       NULL,
      .set_split_mode =       NULL,
      .get_split_mode =       NULL,
      .set_split_vfo =  ft817_set_split_vfo,
      .get_split_vfo =  NULL, /* possible, but works only if PTT is ON */
      .set_rit =        ft817_set_rit,
      .get_rit =        NULL,
      .set_xit =        NULL,
      .get_xit =        NULL,
      .set_ts =         NULL,
      .get_ts =         NULL,
      .set_dcs_code =   ft817_set_dcs_code,
      .get_dcs_code =   NULL,
      .set_tone =             NULL,
      .get_tone =             NULL,
      .set_ctcss_tone =       ft817_set_ctcss_tone,
      .get_ctcss_tone =       NULL,
      .set_tone =             NULL,
      .get_tone =             NULL,
      .set_dcs_sql =            ft817_set_dcs_sql,
      .get_dcs_sql =          NULL,
      .set_tone_sql =         NULL,
      .get_tone_sql =         NULL,
      .set_ctcss_sql =  ft817_set_ctcss_sql,
      .get_ctcss_sql =  NULL,
      .power2mW =             NULL,
      .mW2power =             NULL,
      .set_powerstat =  ft817_set_powerstat,
      .get_powerstat =  NULL,
      .reset =          NULL,
      .set_ant =        NULL,
      .get_ant =        NULL,
      .set_level =            NULL,
      .get_level =            ft817_get_level,
      .set_func =             ft817_set_func,
      .get_func =             NULL,
      .set_parm =             NULL,
      .get_parm =             NULL,
      .set_ext_level =        NULL,
      .get_ext_level =        NULL,
      .set_ext_parm =         NULL,
      .get_ext_parm =         NULL,
      .set_conf =             NULL,
      .get_conf =             NULL,
      .send_dtmf =            NULL,
      .recv_dtmf =            NULL,
      .send_morse =           NULL,
      .set_bank =             NULL,
      .set_mem =              NULL,
      .get_mem =              NULL,
      .vfo_op =               ft817_vfo_op,
      .scan =                 NULL,
      .set_trn =              NULL,
      .get_trn =              NULL,
      .decode_event =         NULL,
      .set_channel =          NULL,
      .get_channel =          NULL,

      /* there are some more */
}; 

/* ---------------------------------------------------------------------- */

int ft817_init (RIG *rig)
{
      struct ft817_priv_data *p;
  
      rig_debug (RIG_DEBUG_VERBOSE,"ft817: ft817_init called \n");

      if ((p = calloc(1, sizeof(struct ft817_priv_data))) == NULL)
            return -RIG_ENOMEM;

      /* Copy complete native cmd set to private cmd storage area */
      memcpy(p->pcs, ncmd, sizeof(ncmd));

      rig->state.priv = (void*) p;
  
      return RIG_OK;
}

int ft817_cleanup (RIG *rig)
{
      rig_debug (RIG_DEBUG_VERBOSE,"ft817: ft817_cleanup called \n");

      if (rig->state.priv)
            free(rig->state.priv);
      rig->state.priv = NULL;
  
      return RIG_OK;
}

int ft817_open (RIG *rig)
{
      rig_debug (RIG_DEBUG_VERBOSE,"ft817: ft817_open called \n");

      return RIG_OK;
}

int ft817_close (RIG *rig)
{
      rig_debug (RIG_DEBUG_VERBOSE,"ft817: ft817_close called \n");

      return RIG_OK;
}

/* ---------------------------------------------------------------------- */

static inline long timediff(struct timeval *tv1, struct timeval *tv2)
{
      struct timeval tv;

      tv.tv_usec = tv1->tv_usec - tv2->tv_usec;
      tv.tv_sec  = tv1->tv_sec  - tv2->tv_sec;

      return ((tv.tv_sec * 1000L) + (tv.tv_usec / 1000L));
}

static int check_cache_timeout(struct timeval *tv)
{
      struct timeval curr;
      long t;

      if (tv->tv_sec == 0 && tv->tv_usec == 0) {
            rig_debug(RIG_DEBUG_VERBOSE, "ft817: cache invalid\n");
            return 1;
      }

      gettimeofday(&curr, NULL);

      if ((t = timediff(&curr, tv)) < FT817_CACHE_TIMEOUT) {
            rig_debug(RIG_DEBUG_VERBOSE, "ft817: using cache (%ld ms)\n", t);
            return 0;
      } else {
            rig_debug(RIG_DEBUG_VERBOSE, "ft817: cache timed out (%ld ms)\n", t);
            return 1;
      }
}

static int ft817_get_status(RIG *rig, int status)
{
      struct ft817_priv_data *p = (struct ft817_priv_data *) rig->state.priv;
      struct timeval *tv;
      unsigned char *data;
      int len;
      int n;

      switch (status) {
      case FT817_NATIVE_CAT_GET_FREQ_MODE_STATUS:
            data = p->fm_status;
            len  = YAESU_CMD_LENGTH;
            tv   = &p->fm_status_tv;
            break;
      case FT817_NATIVE_CAT_GET_RX_STATUS:
            data = &p->rx_status;
            len  = 1;
            tv   = &p->rx_status_tv;
            break;
      case FT817_NATIVE_CAT_GET_TX_STATUS:
            data = &p->tx_status;
            len  = 1;
            tv   = &p->tx_status_tv;
            break;
      default:
            rig_debug(RIG_DEBUG_ERR, "ft817_get_status: Internal error!\n");
            return -RIG_EINTERNAL;
      }

      serial_flush(&rig->state.rigport);

      write_block(&rig->state.rigport, p->pcs[status].nseq, YAESU_CMD_LENGTH);

      if ((n = read_block(&rig->state.rigport, data, len)) < 0)
            return n;

      if (n != len)
            return -RIG_EIO;

      gettimeofday(tv, NULL);

      return RIG_OK;
}

/* ---------------------------------------------------------------------- */

int ft817_get_freq(RIG *rig, vfo_t vfo, freq_t *freq)
{
      struct ft817_priv_data *p = (struct ft817_priv_data *) rig->state.priv;
      int n;

      if (vfo != RIG_VFO_CURR)
            return -RIG_ENTARGET;

      if (check_cache_timeout(&p->fm_status_tv))
            if ((n = ft817_get_status(rig, FT817_NATIVE_CAT_GET_FREQ_MODE_STATUS)) < 0)
                  return n;

      *freq = from_bcd_be(p->fm_status, 8) * 10;

      return -RIG_OK;
}

int ft817_get_mode(RIG *rig, vfo_t vfo, rmode_t *mode, pbwidth_t *width)
{
      struct ft817_priv_data *p = (struct ft817_priv_data *) rig->state.priv;
      int n;

      if (vfo != RIG_VFO_CURR)
            return -RIG_ENTARGET;

      if (check_cache_timeout(&p->fm_status_tv))
            if ((n = ft817_get_status(rig, FT817_NATIVE_CAT_GET_FREQ_MODE_STATUS)) < 0)
                  return n;

      /* set normal width now, narrow will override this later */
      *width = RIG_PASSBAND_NORMAL;

      switch (p->fm_status[4]) {
      case 0x00:
            *mode = RIG_MODE_LSB;
            break;
      case 0x01:
            *mode = RIG_MODE_USB;
            break;
      case 0x02:
            *mode = RIG_MODE_CW;
            break;
      case 0x03:
            *mode = RIG_MODE_CWR;
            break;
      case 0x04:
            *mode = RIG_MODE_AM;
            break;
      case 0x06:
            *mode = RIG_MODE_WFM;
            break;
      case 0x08:
            *mode = RIG_MODE_FM;
            break;
      case 0x0A:
            *mode = RIG_MODE_RTTY;
            break;
      case 0x0C:
            *mode = RIG_MODE_PKTFM;
            break;

      /* "extra modes" which are not documented in the manual */
      case 0x82:
            *mode = RIG_MODE_CW;
            *width = rig_passband_narrow (rig, RIG_MODE_CW);
            break;
      case 0x83:
            *mode = RIG_MODE_CWR;
            *width = rig_passband_narrow (rig, RIG_MODE_CW);
            break;
      case 0x8A:
            *mode = RIG_MODE_RTTY;
            *width = rig_passband_narrow (rig, RIG_MODE_CW);
            break;

      default:
            *mode = RIG_MODE_NONE;
      }


      return RIG_OK;
}

int ft817_get_ptt(RIG *rig, vfo_t vfo, ptt_t *ptt)
{
      struct ft817_priv_data *p = (struct ft817_priv_data *) rig->state.priv;
      int n;

      if (vfo != RIG_VFO_CURR)
            return -RIG_ENTARGET;

      if (check_cache_timeout(&p->tx_status_tv))
            if ((n = ft817_get_status(rig, FT817_NATIVE_CAT_GET_TX_STATUS)) < 0)
                  return n;

      *ptt = ((p->tx_status & 0x80) == 0);

      return RIG_OK;
}

static int ft817_get_pometer_level(RIG *rig, value_t *val)
{
      struct ft817_priv_data *p = (struct ft817_priv_data *) rig->state.priv;
      int n;

      if (check_cache_timeout(&p->tx_status_tv))
            if ((n = ft817_get_status(rig, FT817_NATIVE_CAT_GET_TX_STATUS)) < 0)
                  return n;

      /* Valid only if PTT is on */
      if ((p->tx_status & 0x80) == 0)
            val->f = ((p->tx_status & 0x0F) / 15.0);
      else
            val->f = 0.0;

      return RIG_OK;
}

static int ft817_get_smeter_level(RIG *rig, value_t *val)
{
      struct ft817_priv_data *p = (struct ft817_priv_data *) rig->state.priv;
      int n;

      if (check_cache_timeout(&p->rx_status_tv))
            if ((n = ft817_get_status(rig, FT817_NATIVE_CAT_GET_RX_STATUS)) < 0)
                  return n;

      n = (p->rx_status & 0x0F) - 9;

      val->i = n * ((n > 0) ? 10 : 6);

      return RIG_OK;
}

static int ft817_get_raw_smeter_level(RIG *rig, value_t *val)
{
      struct ft817_priv_data *p = (struct ft817_priv_data *) rig->state.priv;
      int n;

      if (check_cache_timeout(&p->rx_status_tv))
            if ((n = ft817_get_status(rig, FT817_NATIVE_CAT_GET_RX_STATUS)) < 0)
                  return n;

      val->i = p->rx_status & 0x0F;

      return RIG_OK;
}


int ft817_get_level (RIG *rig, vfo_t vfo, setting_t level, value_t *val)
{
      if (vfo != RIG_VFO_CURR)
            return -RIG_ENTARGET;

      switch (level) {

      case RIG_LEVEL_STRENGTH:
            return ft817_get_smeter_level(rig, val);

      case RIG_LEVEL_RAWSTR:
            return ft817_get_raw_smeter_level(rig, val);

      case RIG_LEVEL_RFPOWER:
            return ft817_get_pometer_level(rig, val);

      default:
            return -RIG_EINVAL;
      }

      return RIG_OK;
}

int ft817_get_dcd(RIG *rig, vfo_t vfo, dcd_t *dcd)
{
      struct ft817_priv_data *p = (struct ft817_priv_data *) rig->state.priv;
      int n;

      if (vfo != RIG_VFO_CURR)
            return -RIG_ENTARGET;

      if (check_cache_timeout(&p->rx_status_tv))
            if ((n = ft817_get_status(rig, FT817_NATIVE_CAT_GET_RX_STATUS)) < 0)
                  return n;

      /* TODO: consider bit 6 too ??? (CTCSS/DCS code match) */
      if (p->rx_status & 0x80)
            *dcd = RIG_DCD_OFF;
      else
            *dcd = RIG_DCD_ON;

      return RIG_OK;
}

/* ---------------------------------------------------------------------- */

static int ft817_read_ack(RIG *rig)
{
#if (FT817_POST_WRITE_DELAY == 0)
      unsigned char dummy;
      int n;

      if ((n = read_block(&rig->state.rigport, &dummy, 1)) < 0) {
            rig_debug(RIG_DEBUG_ERR, "ft817: error reading ack\n");
            return n;
      }

      rig_debug(RIG_DEBUG_TRACE,"ft817: ack received (%d)\n", dummy);

      if (dummy != 0)
            return -RIG_ERJCTED;
#endif

      return RIG_OK;
}

/*
 * private helper function to send a private command sequence.
 * Must only be complete sequences.
 */
static int ft817_send_cmd(RIG *rig, int index)
{
      struct ft817_priv_data *p = (struct ft817_priv_data *) rig->state.priv;
 
      if (p->pcs[index].ncomp == 0) {
            rig_debug(RIG_DEBUG_VERBOSE, "ft817: Incomplete sequence\n");
            return -RIG_EINTERNAL;
      }

      write_block(&rig->state.rigport, p->pcs[index].nseq, YAESU_CMD_LENGTH);
      return ft817_read_ack(rig);
}

/*
 * The same for incomplete commands.
 */
static int ft817_send_icmd(RIG *rig, int index, unsigned char *data)
{
      struct ft817_priv_data *p = (struct ft817_priv_data *) rig->state.priv;
      unsigned char cmd[YAESU_CMD_LENGTH];
 
      if (p->pcs[index].ncomp == 1) {
            rig_debug(RIG_DEBUG_VERBOSE, "ft817: Complete sequence\n");
            return -RIG_EINTERNAL;
      }

      cmd[YAESU_CMD_LENGTH - 1] = p->pcs[index].nseq[YAESU_CMD_LENGTH - 1];
      memcpy(cmd, data, YAESU_CMD_LENGTH - 1);

      write_block(&rig->state.rigport, cmd, YAESU_CMD_LENGTH);
      return ft817_read_ack(rig);
}

/* ---------------------------------------------------------------------- */

int ft817_set_freq(RIG *rig, vfo_t vfo, freq_t freq)
{
      unsigned char data[YAESU_CMD_LENGTH - 1];

      if (vfo != RIG_VFO_CURR)
            return -RIG_ENTARGET;

      rig_debug(RIG_DEBUG_VERBOSE,"ft817: requested freq = %"PRIfreq" Hz\n", freq);

      /* fill in the frequency */
      to_bcd_be(data, (freq + 5) / 10, 8);

      return ft817_send_icmd(rig, FT817_NATIVE_CAT_SET_FREQ, data);
}

int ft817_set_mode(RIG *rig, vfo_t vfo, rmode_t mode, pbwidth_t width)
{
      int index;  /* index of sequence to send */

      if (vfo != RIG_VFO_CURR)
            return -RIG_ENTARGET;

      rig_debug(RIG_DEBUG_VERBOSE,"ft817: generic mode = %x \n", mode);

      switch(mode) {

      case RIG_MODE_AM:
            index = FT817_NATIVE_CAT_SET_MODE_AM;
            break;

      case RIG_MODE_CW:
            index = FT817_NATIVE_CAT_SET_MODE_CW;
            break;

      case RIG_MODE_USB:
            index = FT817_NATIVE_CAT_SET_MODE_USB;
            break;

      case RIG_MODE_LSB:
            index = FT817_NATIVE_CAT_SET_MODE_LSB;
            break;

      case RIG_MODE_RTTY:
            index = FT817_NATIVE_CAT_SET_MODE_DIG;
            break;

      case RIG_MODE_FM:
            index = FT817_NATIVE_CAT_SET_MODE_FM;
            break;

      case RIG_MODE_WFM:
            /* can not be set, it is implicit when changing band */
//          index = FT817_NATIVE_CAT_SET_MODE_FM;
            return -RIG_EINVAL;
            break;

      case RIG_MODE_CWR:
            index = FT817_NATIVE_CAT_SET_MODE_CWR;
            break;

      case RIG_MODE_PKTFM:
            index = FT817_NATIVE_CAT_SET_MODE_PKT;
            break;

      default:
            return -RIG_EINVAL;
      }

      /* just ignore passband */
/*    if (width != RIG_PASSBAND_NORMAL) */
/*          return -RIG_EINVAL; */

      return ft817_send_cmd(rig, index);
}

int ft817_set_ptt(RIG *rig, vfo_t vfo, ptt_t ptt)
{
      int index, n;

      if (vfo != RIG_VFO_CURR)
            return -RIG_ENTARGET;

      rig_debug(RIG_DEBUG_VERBOSE, "ft817: ft817_set_ptt called\n");

      switch(ptt) {
      case RIG_PTT_ON:
            index = FT817_NATIVE_CAT_PTT_ON;
            break;
      case RIG_PTT_OFF:
            index = FT817_NATIVE_CAT_PTT_OFF;
            break;
      default:
            return -RIG_EINVAL;
      }

      n = ft817_send_cmd(rig, index);

      if (n < 0 && n != -RIG_ERJCTED)
            return n;

      return RIG_OK;
}

int ft817_set_func (RIG *rig, vfo_t vfo, setting_t func, int status)
{
      if (vfo != RIG_VFO_CURR)
            return -RIG_ENTARGET;

      switch (func) {
      case RIG_FUNC_LOCK:
            if (status)
                  return ft817_send_cmd (rig, FT817_NATIVE_CAT_LOCK_ON);
            else
                  return ft817_send_cmd (rig, FT817_NATIVE_CAT_LOCK_OFF);

      case RIG_FUNC_TONE:
            if (status)
                  return ft817_send_cmd (rig, FT817_NATIVE_CAT_SET_CTCSS_ENC_ON);
            else
                  return ft817_send_cmd (rig, FT817_NATIVE_CAT_SET_CTCSS_DCS_OFF);

      case RIG_FUNC_TSQL:
            if (status)
                  return ft817_send_cmd (rig, FT817_NATIVE_CAT_SET_CTCSS_ON);
            else
                  return ft817_send_cmd (rig, FT817_NATIVE_CAT_SET_CTCSS_DCS_OFF);

      default:
            return -RIG_EINVAL;
      }
}

int ft817_set_dcs_code(RIG *rig, vfo_t vfo, tone_t code)
{
      unsigned char data[YAESU_CMD_LENGTH - 1];
/*    int n; */

      if (vfo != RIG_VFO_CURR)
            return -RIG_ENTARGET;

      rig_debug(RIG_DEBUG_VERBOSE, "ft817: set DCS code (%d)\n", code);

      if (code == 0)
            return ft817_send_cmd(rig, FT817_NATIVE_CAT_SET_CTCSS_DCS_OFF);

      /* fill in the DCS code - the rig doesn't support separate codes... */
      to_bcd_be(data,     code, 4);
      to_bcd_be(data + 2, code, 4);


      /* FT-817 does not have the DCS_ENC_ON command, so we just set the tone here */

/*    if ((n = ft817_send_icmd(rig, FT817_NATIVE_CAT_SET_DCS_CODE, data)) < 0) */
/*          return n; */

/*    return ft817_send_cmd(rig, FT817_NATIVE_CAT_SET_DCS_ENC_ON); */

      return ft817_send_icmd(rig, FT817_NATIVE_CAT_SET_DCS_CODE, data);
}

int ft817_set_dcs_sql (RIG *rig, vfo_t vfo, tone_t code)
{
      unsigned char data[YAESU_CMD_LENGTH - 1];
      int n;

      if (vfo != RIG_VFO_CURR)
            return -RIG_ENTARGET;

      rig_debug(RIG_DEBUG_VERBOSE, "ft817: set DCS sql (%d)\n", code);

      if (code == 0)
            return ft817_send_cmd(rig, FT817_NATIVE_CAT_SET_CTCSS_DCS_OFF);

      /* fill in the DCS code - the rig doesn't support separate codes... */
      to_bcd_be(data,     code, 4);
      to_bcd_be(data + 2, code, 4);

      if ((n = ft817_send_icmd(rig, FT817_NATIVE_CAT_SET_DCS_CODE, data)) < 0)
            return n;

      return ft817_send_cmd(rig, FT817_NATIVE_CAT_SET_DCS_ON);
}


int ft817_set_ctcss_tone (RIG *rig, vfo_t vfo, tone_t tone)
{
      unsigned char data[YAESU_CMD_LENGTH - 1];
      int n;

      if (vfo != RIG_VFO_CURR)
            return -RIG_ENTARGET;

      rig_debug(RIG_DEBUG_VERBOSE, "ft817: set CTCSS tone (%.1f)\n", tone / 10.0);

      if (tone == 0)
            return ft817_send_cmd(rig, FT817_NATIVE_CAT_SET_CTCSS_DCS_OFF);

      /* fill in the CTCSS freq - the rig doesn't support separate tones... */
      to_bcd_be(data,     tone, 4);
      to_bcd_be(data + 2, tone, 4);

      if ((n = ft817_send_icmd(rig, FT817_NATIVE_CAT_SET_CTCSS_FREQ, data)) < 0)
            return n;

      return ft817_send_cmd(rig, FT817_NATIVE_CAT_SET_CTCSS_ENC_ON);
}


int ft817_set_ctcss_sql(RIG *rig, vfo_t vfo, tone_t tone)
{
      unsigned char data[YAESU_CMD_LENGTH - 1];
      int n;

      if (vfo != RIG_VFO_CURR)
            return -RIG_ENTARGET;

      rig_debug(RIG_DEBUG_VERBOSE, "ft817: set CTCSS sql (%.1f)\n", tone / 10.0);

      if (tone == 0)
            return ft817_send_cmd(rig, FT817_NATIVE_CAT_SET_CTCSS_DCS_OFF);

      /* fill in the CTCSS freq - the rig doesn't support separate tones... */
      to_bcd_be(data,     tone, 4);
      to_bcd_be(data + 2, tone, 4);

      if ((n = ft817_send_icmd(rig, FT817_NATIVE_CAT_SET_CTCSS_FREQ, data)) < 0)
            return n;

      return ft817_send_cmd(rig, FT817_NATIVE_CAT_SET_CTCSS_ON);
}

int ft817_set_rptr_shift (RIG *rig, vfo_t vfo, rptr_shift_t shift)
{
      /* Note: this doesn't have effect unless FT817 is in FM mode
         although the command is accepted in any mode.
      */
      if (vfo != RIG_VFO_CURR)
            return -RIG_ENTARGET;

      rig_debug(RIG_DEBUG_VERBOSE, "ft817: set repeter shift = %i\n", shift);

      switch (shift) {

      case RIG_RPT_SHIFT_NONE:
            return ft817_send_cmd(rig, FT817_NATIVE_CAT_SET_RPT_SHIFT_SIMPLEX);

      case RIG_RPT_SHIFT_MINUS:
            return ft817_send_cmd(rig, FT817_NATIVE_CAT_SET_RPT_SHIFT_MINUS);

      case RIG_RPT_SHIFT_PLUS:
            return ft817_send_cmd(rig, FT817_NATIVE_CAT_SET_RPT_SHIFT_PLUS);

      }

      return -RIG_EINVAL;
}

int ft817_set_rptr_offs(RIG *rig, vfo_t vfo, shortfreq_t offs)
{
      unsigned char data[YAESU_CMD_LENGTH - 1];

      if (vfo != RIG_VFO_CURR)
            return -RIG_ENTARGET;

      rig_debug(RIG_DEBUG_VERBOSE, "ft817: set repeter offs = %li\n", offs);

      /* fill in the offset freq */
      to_bcd_be(data, offs / 10, 8);

      return ft817_send_icmd(rig, FT817_NATIVE_CAT_SET_RPT_OFFSET, data);
}

int ft817_set_rit(RIG *rig, vfo_t vfo, shortfreq_t rit)
{
      unsigned char data[YAESU_CMD_LENGTH - 1];
      int n;

      if (vfo != RIG_VFO_CURR)
            return -RIG_ENTARGET;

      rig_debug(RIG_DEBUG_VERBOSE, "ft817: set rit = %li)\n", rit);

      /* fill in the RIT freq */
      data[0] = (rit < 0) ? 255 : 0;
      data[1] = 0;
      to_bcd_be(data + 2, labs(rit) / 10, 4);

      if ((n = ft817_send_icmd(rig, FT817_NATIVE_CAT_SET_CLAR_FREQ, data)) < 0)
            return n;

      /* the rig rejects if these are repeated - don't confuse user with retcode */
      if (rit == 0)
            ft817_send_cmd(rig, FT817_NATIVE_CAT_CLAR_OFF);
      else
            ft817_send_cmd(rig, FT817_NATIVE_CAT_CLAR_ON);

      return RIG_OK;
}


int ft817_set_powerstat(RIG *rig, powerstat_t status)
{
      switch (status) {
      case RIG_POWER_OFF:
            return ft817_send_cmd(rig, FT817_NATIVE_CAT_PWR_OFF);
      case RIG_POWER_ON:
            return ft817_send_cmd(rig, FT817_NATIVE_CAT_PWR_ON);
      case RIG_POWER_STANDBY:
      default:
            return -RIG_EINVAL;
      }
}

int ft817_vfo_op         (RIG *rig, vfo_t vfo, vfo_op_t op)
{
      switch (op) {

      case RIG_OP_TOGGLE:
            return ft817_send_cmd(rig, FT817_NATIVE_CAT_SET_VFOAB);

      default:
            return -RIG_EINVAL;
      }
}


/* FIXME: this function silently ignores the vfo args and just turns
   split ON or OFF.
*/
int ft817_set_split_vfo  (RIG *rig, vfo_t vfo, split_t split, vfo_t tx_vfo)
{
      int index, n;

/*    if (vfo != RIG_VFO_CURR) */
/*          return -RIG_ENTARGET; */

      rig_debug(RIG_DEBUG_VERBOSE, "ft817: ft817_set_split_vfo called\n");

      switch (split) {

      case RIG_SPLIT_ON:
            index = FT817_NATIVE_CAT_SPLIT_ON;
            break;

      case RIG_SPLIT_OFF:
            index = FT817_NATIVE_CAT_SPLIT_OFF;
            break;

      default:
            return -RIG_EINVAL;
      }

      n = ft817_send_cmd (rig, index);

      if (n < 0 && n != -RIG_ERJCTED)
            return n;

      return RIG_OK;

}


/* ---------------------------------------------------------------------- */


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