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ft847.c
/*
 * hamlib - (C) Frank Singleton 2000,2001 (vk3fcs@ix.netcom.com)
 *          (C) Stephane Fillod 2000-2010
 *
 * ft847.c - (C) Frank Singleton 2000 (vk3fcs@ix.netcom.com)
 *           (C) Stephane Fillod 2000-2010
 *
 * This shared library provides an API for communicating
 * via serial interface to an FT-847 using the "CAT" interface.
 *
 * $Id: ft847.c,v 1.34 2009-02-20 12:33:52 fillods 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
 *
 */


/*
 * TODO - Remove static stuff, see ft747 for new style [started]
 *      - create yaesu.h for common command structure etc..[started]
 *      - add mode set before freq set to avoid prior mode offset (eg: CW)
 *
 */

/*
 * Notes on limitations in RIG control capabilities. These are
 * related to the Yaesu's FT847 design, not my program :-)
 *
 * 1. Rig opcodes allow only 10Hz resolution.
 * 2. Cannot select VFO B
 * 3. Using CAT and Tuner controls simultaneously  can
 *    cause problems.
 *
 */

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

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

#include "hamlib/rig.h"
#include "serial.h"
#include "yaesu.h"
#include "ft847.h"
#include "misc.h"
#include "bandplan.h"
#include "tones.h"

/* prototypes */

static int ft847_send_priv_cmd(RIG *rig, int cmd_index);


/* Native ft847 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 } }, /* CAT = On */
  { 1, { 0x00, 0x00, 0x00, 0x00, 0x80 } }, /* CAT = Off */
  { 1, { 0x00, 0x00, 0x00, 0x00, 0x08 } }, /* ptt on */
  { 1, { 0x00, 0x00, 0x00, 0x01, 0x88 } }, /* ptt off */
  { 1, { 0x00, 0x00, 0x00, 0x00, 0x4e } }, /* sat mode on */
  { 1, { 0x00, 0x00, 0x00, 0x00, 0x8e } }, /* sat mode off */

  { 0, { 0x00, 0x00, 0x00, 0x00, 0x01 } }, /* set freq main */
  { 0, { 0x00, 0x00, 0x00, 0x00, 0x11 } }, /* set freq sat rx */
  { 0, { 0x00, 0x00, 0x00, 0x00, 0x21 } }, /* set freq sat tx */

  { 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, { 0x82, 0x00, 0x00, 0x00, 0x07 } }, /* mode set main CWN */
  { 1, { 0x83, 0x00, 0x00, 0x00, 0x07 } }, /* mode set main CWRN */
  { 1, { 0x84, 0x00, 0x00, 0x00, 0x07 } }, /* mode set main AMN */
  { 1, { 0x88, 0x00, 0x00, 0x00, 0x07 } }, /* mode set main FMN */

  { 1, { 0x00, 0x00, 0x00, 0x00, 0x17 } }, /* mode set sat rx LSB */
  { 1, { 0x01, 0x00, 0x00, 0x00, 0x17 } }, /* mode set sat rx USB */
  { 1, { 0x02, 0x00, 0x00, 0x00, 0x17 } }, /* mode set sat rx CW */
  { 1, { 0x03, 0x00, 0x00, 0x00, 0x17 } }, /* mode set sat rx CWR */
  { 1, { 0x04, 0x00, 0x00, 0x00, 0x17 } }, /* mode set sat rx AM */
  { 1, { 0x08, 0x00, 0x00, 0x00, 0x17 } }, /* mode set sat rx FM */
  { 1, { 0x82, 0x00, 0x00, 0x00, 0x17 } }, /* mode set sat rx CWN */
  { 1, { 0x83, 0x00, 0x00, 0x00, 0x17 } }, /* mode set sat rx CWRN */
  { 1, { 0x84, 0x00, 0x00, 0x00, 0x17 } }, /* mode set sat rx AMN */
  { 1, { 0x88, 0x00, 0x00, 0x00, 0x17 } }, /* mode set sat rx FMN */

  { 1, { 0x00, 0x00, 0x00, 0x00, 0x27 } }, /* mode set sat tx LSB */
  { 1, { 0x01, 0x00, 0x00, 0x00, 0x27 } }, /* mode set sat tx USB */
  { 1, { 0x02, 0x00, 0x00, 0x00, 0x27 } }, /* mode set sat tx CW */
  { 1, { 0x03, 0x00, 0x00, 0x00, 0x27 } }, /* mode set sat tx CWR */
  { 1, { 0x04, 0x00, 0x00, 0x00, 0x27 } }, /* mode set sat tx AM */
  { 1, { 0x08, 0x00, 0x00, 0x00, 0x27 } }, /* mode set sat tx FM */
  { 1, { 0x82, 0x00, 0x00, 0x00, 0x27 } }, /* mode set sat tx CWN */
  { 1, { 0x83, 0x00, 0x00, 0x00, 0x27 } }, /* mode set sat tx CWRN */
  { 1, { 0x84, 0x00, 0x00, 0x00, 0x27 } }, /* mode set sat tx AMN */
  { 1, { 0x88, 0x00, 0x00, 0x00, 0x27 } }, /* mode set sat tx FMN */

  { 1, { 0x0a, 0x00, 0x00, 0x00, 0x0a } }, /* set DCS on, main */
  { 1, { 0x2a, 0x00, 0x00, 0x00, 0x0a } }, /* set CTCSS/DCS enc/dec on, main */
  { 1, { 0x4a, 0x00, 0x00, 0x00, 0x0a } }, /* set CTCSS/DCS enc on, main */
  { 1, { 0x8a, 0x00, 0x00, 0x00, 0x0a } }, /* set CTCSS/DCS off, main */

  { 1, { 0x0a, 0x00, 0x00, 0x00, 0x1a } }, /* set DCS on, sat rx */
  { 1, { 0x2a, 0x00, 0x00, 0x00, 0x1a } }, /* set CTCSS/DCS enc/dec on, sat rx */
  { 1, { 0x4a, 0x00, 0x00, 0x00, 0x1a } }, /* set CTCSS/DCS enc on, sat rx */
  { 1, { 0x8a, 0x00, 0x00, 0x00, 0x1a } }, /* set CTCSS/DCS off, sat rx */

  { 1, { 0x0a, 0x00, 0x00, 0x00, 0x2a } }, /* set DCS on, sat tx */
  { 1, { 0x2a, 0x00, 0x00, 0x00, 0x2a } }, /* set CTCSS/DCS enc/dec on, sat tx */
  { 1, { 0x4a, 0x00, 0x00, 0x00, 0x2a } }, /* set CTCSS/DCS enc on, sat tx */
  { 1, { 0x8a, 0x00, 0x00, 0x00, 0x2a } }, /* set CTCSS/DCS off, sat tx */

  { 0, { 0x00, 0x00, 0x00, 0x00, 0x0b } }, /* set CTCSS  freq, main */
  { 0, { 0x00, 0x00, 0x00, 0x00, 0x1b } }, /* set CTCSS  freq, sat rx */
  { 0, { 0x00, 0x00, 0x00, 0x00, 0x2b } }, /* set CTCSS  freq, sat tx */

  { 0, { 0x00, 0x00, 0x00, 0x00, 0x0c } }, /* set DCS code, main */
  { 0, { 0x00, 0x00, 0x00, 0x00, 0x1c } }, /* set DCS code, sat rx */
  { 0, { 0x00, 0x00, 0x00, 0x00, 0x2c } }, /* set DCS code, sat tx */

  { 0, { 0x00, 0x00, 0x00, 0x00, 0x09 } }, /* set RPT shift MINUS */
  { 0, { 0x00, 0x00, 0x00, 0x00, 0x49 } }, /* set RPT shift PLUS */
  { 0, { 0x00, 0x00, 0x00, 0x00, 0x89 } }, /* set RPT shift SIMPLEX */

  { 0, { 0x00, 0x00, 0x00, 0x00, 0xf9 } }, /* set RPT offset freq */

  { 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, main  */
  { 1, { 0x00, 0x00, 0x00, 0x00, 0x13 } }, /* get FREQ and MODE status, sat rx  */
  { 1, { 0x00, 0x00, 0x00, 0x00, 0x23 } }, /* get FREQ and MODE status, sat tx  */

};


/* 
 * Receiver caps 
 */


#define FT847_ALL_RX_MODES (RIG_MODE_AM|RIG_MODE_CW|RIG_MODE_CWR|RIG_MODE_SSB|RIG_MODE_FM)
#define FT847_SSB_CW_RX_MODES (RIG_MODE_CW|RIG_MODE_CWR|RIG_MODE_SSB)
#define FT847_AM_FM_RX_MODES (RIG_MODE_AM|RIG_MODE_FM)

/* tx doesn't have WFM.
 * 100W in 160-6m (25 watts AM carrier)
 * 50W in 2m/70cm (12.5 watts AM carrier)
 */ 

#define FT847_OTHER_TX_MODES (RIG_MODE_AM|RIG_MODE_CW|RIG_MODE_SSB|RIG_MODE_FM)
#define FT847_AM_TX_MODES (RIG_MODE_AM)

#define FT847_FUNC_ALL (RIG_FUNC_TONE|RIG_FUNC_TSQL)

#define FT847_LEVEL_ALL (RIG_LEVEL_RAWSTR|RIG_LEVEL_STRENGTH|RIG_LEVEL_ALC)

#define FT847_VFOS (RIG_VFO_MAIN|RIG_VFO_SUB)

/* FT-847 has different antennas connectors, but no rig_set_ant() ability */
#define FT847_ANTS RIG_ANT_1

#define FT847_STR_CAL { 3, \
      { \
            {   0, -60 }, /* S0 */ \
            {  16,   0 }, /* S9 */ \
            {  31,  60 }, /* +60 dB */ \
      } }

/*
 * 39 CTCSS sub-audible tones
 * c.f. ft847_set_ctcss_tone()
 */
static const tone_t ft847_ctcss_list[] = {
  670,  693,  719,  744,  770,  797,  825,  854,  885,  915, 
  948,  974, 1000, 1035, 1072, 1109, 1148, 1188, 1230, 1273,
 1318, 1365, 1413, 1462, 1514, 1567, 1622, 1679, 1738, 1799,
 1862, 1928, 2035, 2107, 2181, 2257, 2336, 2418, 2503,
 0
};


/*
 * ft847 rigs capabilities.
 * Notice that some rigs share the same functions.
 * Also this struct is READONLY!
 */

const struct rig_caps ft847_caps = {
.rig_model =  RIG_MODEL_FT847,
.model_name = "FT-847", 
.mfg_name =  "Yaesu", 
.version =  "0.5",
.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 =  57600,
.serial_data_bits =  8,
.serial_stop_bits =  2,
.serial_parity =  RIG_PARITY_NONE,
.serial_handshake =  RIG_HANDSHAKE_NONE, 
.write_delay =  FT847_WRITE_DELAY,
.post_write_delay =  FT847_POST_WRITE_DELAY,
.timeout =  1000,
.retry =  0,

.has_get_func =  RIG_FUNC_NONE,
.has_set_func =  FT847_FUNC_ALL,
.has_get_level =  FT847_LEVEL_ALL,
.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 =  ft847_ctcss_list,
.dcs_list =  common_dcs_list,
.preamp =   { RIG_DBLST_END, },     /* no preamp/att in CAT */
.attenuator =   { RIG_DBLST_END, },
.max_rit =  Hz(0),
.max_xit =  Hz(0),
.max_ifshift =  Hz(0),
.targetable_vfo =  RIG_TARGETABLE_FREQ|RIG_TARGETABLE_MODE|RIG_TARGETABLE_TONE|RIG_TARGETABLE_FUNC,
.transceive =  RIG_TRN_OFF,
.bank_qty =   0,
.chan_desc_sz =  0,
.str_cal = FT847_STR_CAL,

.chan_list =  { RIG_CHAN_END, }, /* FIXME: memory chan list: 78, but only in clonable mode? */

.rx_range_list1 =  {
    {kHz(100),MHz(30),FT847_ALL_RX_MODES,-1,-1}, /* rx range begin */
    {MHz(36),MHz(76),FT847_ALL_RX_MODES,-1,-1},
    {MHz(108),MHz(174),FT847_ALL_RX_MODES,-1,-1},
    {MHz(420),MHz(512),FT847_ALL_RX_MODES,-1,-1},

    RIG_FRNG_END, }, /* rx range end */

.tx_range_list1 =  {
    FRQ_RNG_HF(1,FT847_OTHER_TX_MODES, W(5),W(100),FT847_VFOS,FT847_ANTS),
    FRQ_RNG_HF(1,FT847_AM_TX_MODES, W(1),W(25),FT847_VFOS,FT847_ANTS),

    FRQ_RNG_6m(2,FT847_OTHER_TX_MODES, W(5),W(100),FT847_VFOS,FT847_ANTS),
    FRQ_RNG_6m(2,FT847_AM_TX_MODES, W(1),W(25),FT847_VFOS,FT847_ANTS),

    FRQ_RNG_2m(2,FT847_OTHER_TX_MODES, W(1),W(50),FT847_VFOS,FT847_ANTS),
    FRQ_RNG_2m(2,FT847_AM_TX_MODES, W(1),W(12.5),FT847_VFOS,FT847_ANTS),

    FRQ_RNG_70cm(2,FT847_OTHER_TX_MODES, W(1),W(50),FT847_VFOS,FT847_ANTS),
    FRQ_RNG_70cm(2,FT847_AM_TX_MODES, W(1),W(12.5),FT847_VFOS,FT847_ANTS),

    RIG_FRNG_END, }, /* tx range end */

.rx_range_list2 =  
  { {kHz(100),MHz(30),FT847_ALL_RX_MODES,-1,-1}, /* rx range begin */
    {MHz(36),MHz(76),FT847_ALL_RX_MODES,-1,-1},
    {MHz(108),MHz(174),FT847_ALL_RX_MODES,-1,-1},
    {MHz(420),MHz(512),FT847_ALL_RX_MODES,-1,-1},

    RIG_FRNG_END, }, /* rx range end */

.tx_range_list2 = 
  {
    FRQ_RNG_HF(2,FT847_OTHER_TX_MODES, W(5),W(100),FT847_VFOS,FT847_ANTS),
    FRQ_RNG_HF(2,FT847_AM_TX_MODES, W(1),W(25),FT847_VFOS,FT847_ANTS),

    FRQ_RNG_6m(2,FT847_OTHER_TX_MODES, W(5),W(100),FT847_VFOS,FT847_ANTS),
    FRQ_RNG_6m(2,FT847_AM_TX_MODES, W(1),W(25),FT847_VFOS,FT847_ANTS),

    FRQ_RNG_2m(2,FT847_OTHER_TX_MODES, W(1),W(50),FT847_VFOS,FT847_ANTS),
    FRQ_RNG_2m(2,FT847_AM_TX_MODES, W(1),W(12.5),FT847_VFOS,FT847_ANTS),

    FRQ_RNG_70cm(2,FT847_OTHER_TX_MODES, W(1),W(50),FT847_VFOS,FT847_ANTS),
    FRQ_RNG_70cm(2,FT847_AM_TX_MODES, W(1),W(12.5),FT847_VFOS,FT847_ANTS),

    RIG_FRNG_END, },

.tuning_steps =  { {FT847_SSB_CW_RX_MODES,1}, /* normal */
    {FT847_SSB_CW_RX_MODES,10}, /* fast */
    {FT847_SSB_CW_RX_MODES,100}, /* faster */

    
    {FT847_AM_FM_RX_MODES,10}, /* normal */
    {FT847_AM_FM_RX_MODES,100}, /* fast  */
        
    RIG_TS_END,
  },  
      /* mode/filter list, .remember =  order matters! */
.filters =  {
            {RIG_MODE_SSB|RIG_MODE_CW|RIG_MODE_CWR, kHz(2.2)},
            {RIG_MODE_CW|RIG_MODE_CWR, Hz(500)},
            {RIG_MODE_AM, kHz(9)},
            {RIG_MODE_AM, kHz(2.2)},
            {RIG_MODE_FM, kHz(15)},
            {RIG_MODE_FM, kHz(9)},
            RIG_FLT_END,
  },

.priv =   NULL,
.rig_init =   ft847_init, 
.rig_cleanup =  ft847_cleanup, 
.rig_open =   ft847_open, 
.rig_close =  ft847_close, 

.set_freq =   ft847_set_freq,       /* set freq */
.get_freq =  ft847_get_freq,        /* get freq */
.set_mode =  ft847_set_mode,        /* set mode */
.get_mode =  ft847_get_mode,        /* get mode */
.set_split_vfo  = ft847_set_split_vfo,
.get_split_vfo  = ft847_get_split_vfo,
.set_split_freq = ft847_set_split_freq,
.get_split_freq = ft847_get_split_freq,
.set_split_mode = ft847_set_split_mode,
.get_split_mode = ft847_get_split_mode,
.set_ptt =  ft847_set_ptt,          /* set ptt */
.get_ptt =  ft847_get_ptt,          /* get ptt */
.get_dcd =  ft847_get_dcd,          /* get dcd */
.get_level = ft847_get_level,           /* get level */

.set_func       = ft847_set_func,
.set_ctcss_tone = ft847_set_ctcss_tone,
.set_ctcss_sql  = ft847_set_ctcss_sql,
.set_dcs_sql    = ft847_set_dcs_sql,
.set_rptr_shift = ft847_set_rptr_shift,
.set_rptr_offs  = ft847_set_rptr_offs,

};

/*
 * Function definitions below
 */

/*
 * setup *priv 
 * serial port is already open (rig->state->fd)
 */

int ft847_init(RIG *rig) {
  struct ft847_priv_data *p;
  
  rig_debug(RIG_DEBUG_VERBOSE,"%s called \n", __func__);

  if (!rig)
    return -RIG_EINVAL;
  
  p = (struct ft847_priv_data*)malloc(sizeof(struct ft847_priv_data));
  if (!p) {
                        /* whoops! memory shortage! */
    return -RIG_ENOMEM;
  }


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


/*
 * ft847_cleanup routine
 * the serial port is closed by the frontend
 */

int ft847_cleanup(RIG *rig) {
  if (!rig)
    return -RIG_EINVAL;
  
  if (rig->state.priv)
    free(rig->state.priv);
  rig->state.priv = NULL;

  rig_debug(RIG_DEBUG_VERBOSE,"ft847:ft847_cleanup called \n");
  
  return RIG_OK;
}


/*
 * ft847_open  routine
 * 
 */

int ft847_open(RIG *rig) {

  /* Good time to set CAT ON */

  rig_debug(RIG_DEBUG_VERBOSE,"ft847:ft847_open called \n");

  return ft847_send_priv_cmd(rig,FT_847_NATIVE_CAT_ON);
}

/*
 * ft847_close  routine
 * 
 */

int ft847_close(RIG *rig) {

  /* Good time to set CAT OFF */

  rig_debug(RIG_DEBUG_VERBOSE,"ft847:ft847_close called \n");

  /* don't care about return value */
  ft847_send_priv_cmd(rig,FT_847_NATIVE_CAT_OFF);

  return RIG_OK;
}

/*
 * private helper function to send a private command
 * sequence . Must only be complete sequences.
 *
 */

static int ft847_send_priv_cmd(RIG *rig, int cmd_index) {

  struct rig_state *rig_s;
  unsigned char *cmd;         /* points to sequence to send */
 
  if (!rig)
    return -RIG_EINVAL;

  if (! ncmd[cmd_index].ncomp) {
    rig_debug(RIG_DEBUG_VERBOSE,"ft847: Attempt to send incomplete sequence \n");
    return -RIG_EINVAL;
  }

  rig_s = &rig->state;
  
  cmd = (unsigned char *) ncmd[cmd_index].nseq; /* get native sequence */

  return write_block(&rig_s->rigport, (char *) cmd, YAESU_CMD_LENGTH);
}


/*
 * opcode_vfo() copy into cmd the 5 byte command designated by cmd_index,
 * and patch the opcode with VFO targetting (MAIN 0x0-, SAT RX 0x1-, SAT TX 0x2-)
 */
static int opcode_vfo(RIG *rig, unsigned char * cmd, int cmd_index, vfo_t vfo)
{
  struct ft847_priv_data *p = (struct ft847_priv_data*)rig->state.priv;

  memcpy(cmd, &ncmd[cmd_index].nseq,YAESU_CMD_LENGTH);  

  /* If the sat_mode is not enabled,
   * then leave the OpCode untouched (MAIN VFO) */

  if (p->sat_mode == RIG_SPLIT_ON) {
        switch(vfo) {
        case RIG_VFO_CURR:
        case RIG_VFO_MAIN:
          cmd[4] &= 0x0f;
          cmd[4] |= 0x10;  /* MAIN VFO -> SAT RX VFO */
          break;
        case RIG_VFO_SUB:
        case RIG_VFO_TX:
          cmd[4] &= 0x0f;
          cmd[4] |= 0x20;  /* SAT TX VFO */
          break;
        default:
          rig_debug(RIG_DEBUG_WARN,"%s: Unsupported VFO %s\n",
                      rig_strvfo(vfo));
          return -RIG_EINVAL;       /* sorry, wrong VFO */
        }
  }
  return RIG_OK;
}


/*
 * Set frequency to freq Hz. Note 10 Hz resolution -- YUK -- FS
 *     
 */


int ft847_set_freq(RIG *rig, vfo_t vfo, freq_t freq) {
  struct rig_state *rig_s;
  unsigned char p_cmd[YAESU_CMD_LENGTH]; /* sequence to send */
  int ret;

  if (!rig)
    return -RIG_EINVAL;

  rig_s = &rig->state;

  rig_debug(RIG_DEBUG_VERBOSE,"ft847: requested freq = %"PRIfreq" Hz, vfo=%s\n",
              freq, rig_strvfo(vfo));
  
  ret = opcode_vfo(rig, p_cmd, FT_847_NATIVE_CAT_SET_FREQ_MAIN, vfo);
  if (ret != RIG_OK)
        return ret;

  to_bcd_be(p_cmd,freq/10,8); /* store bcd format in in p_cmd */

  rig_debug(RIG_DEBUG_VERBOSE,"ft847: requested freq after conversion = %"PRIll" Hz \n", from_bcd_be(p_cmd,8)* 10 );

  return write_block(&rig_s->rigport, (char*)p_cmd, YAESU_CMD_LENGTH);
}

#define MD_LSB  0x00
#define MD_USB  0x01
#define MD_CW   0x02
#define MD_CWR  0x03
#define MD_AM   0x04
#define MD_FM   0x08
#define MD_CWN  0x82
#define MD_CWNR 0x83
#define MD_AMN  0x84
#define MD_FMN  0x88

static int get_freq_and_mode(RIG *rig, vfo_t vfo, freq_t *freq, rmode_t *mode,
                        pbwidth_t *width) {
  struct rig_state *rs = &rig->state;
  unsigned char p_cmd[YAESU_CMD_LENGTH]; /* sequence to send */
  unsigned char cmd_index;    /* index of sequence to send */
  unsigned char data[8];
  int n;

  rig_debug(RIG_DEBUG_VERBOSE,"ft847: %s vfo =%s \n",
              __func__, rig_strvfo(vfo));

  cmd_index = FT_847_NATIVE_CAT_GET_FREQ_MODE_STATUS_MAIN;

  memcpy(p_cmd,&ncmd[cmd_index].nseq,YAESU_CMD_LENGTH);  

  /* change opcode according to vfo */
  n = opcode_vfo(rig, p_cmd, cmd_index, vfo);
  if (n != RIG_OK)
        return n;

  n = write_block(&rs->rigport, (char *) p_cmd, YAESU_CMD_LENGTH);
  if (n < 0)
    return n;

  n = read_block(&rs->rigport, (char *) data, YAESU_CMD_LENGTH);
  if (n != YAESU_CMD_LENGTH) {
            rig_debug(RIG_DEBUG_ERR,"ft847: read_block returned %d\n", n);
            return n < 0 ? n : -RIG_EPROTO;
  }

      /* Remember, this is 10Hz resolution */
  *freq = 10*from_bcd_be(data, 8);

  *width = RIG_PASSBAND_NORMAL;
  switch (data[4]) {
  case MD_LSB: *mode = RIG_MODE_LSB; break;
  case MD_USB: *mode = RIG_MODE_USB; break;

  case MD_CWN: 
            *width = rig_passband_narrow(rig, RIG_MODE_CW);
  case MD_CW:  
            *mode = RIG_MODE_CW;
            break;

  case MD_CWNR:
            *width = rig_passband_narrow(rig, RIG_MODE_CW);
  case MD_CWR: 
            *mode = RIG_MODE_CWR;
            break;

  case MD_AMN:
            *width = rig_passband_narrow(rig, RIG_MODE_AM);
  case MD_AM:
            *mode = RIG_MODE_AM;
            break;

  case MD_FMN:
            *width = rig_passband_narrow(rig, RIG_MODE_FM);
  case MD_FM:  
            *mode = RIG_MODE_FM; 
            break;
  default:
    *mode = RIG_MODE_NONE;
    rig_debug(RIG_DEBUG_VERBOSE,"ft847: Unknown mode %02x\n", data[4]);
  }
  if (*width == RIG_PASSBAND_NORMAL)
              *width = rig_passband_normal(rig, *mode);

  return RIG_OK;
}

/*
 * Note taken from http://www.supercontrol.de/cat/ft847faq/page4.htm#pollingcodes
 * The FT-847, as originally delivered, could not poll the radio for frequency
 * and mode information. This was added beginning with the 8G05 production
 * runs. The Operating Manual does not show the codes for polling the radio.
 * Note that you cannot query the sub-VFO, nor can you swap VFOs via software.
 */
int ft847_get_freq(RIG *rig, vfo_t vfo, freq_t *freq)
{
  rmode_t mode;
  pbwidth_t width;

  return get_freq_and_mode(rig, vfo, freq, &mode, &width);
}




int ft847_set_mode(RIG *rig, vfo_t vfo, rmode_t mode, pbwidth_t width) {
  unsigned char cmd_index;    /* index of sequence to send */
  struct rig_state *rs = &rig->state;
  unsigned char p_cmd[YAESU_CMD_LENGTH]; /* sequence to send */
  int ret;

  /* 
   * translate mode from generic to ft847 specific
   */

  rig_debug(RIG_DEBUG_VERBOSE,"ft847: generic mode = %x \n", mode);


  switch(mode) {
  case RIG_MODE_AM:
    cmd_index = FT_847_NATIVE_CAT_SET_MODE_MAIN_AM;
    break;
  case RIG_MODE_CW:
    cmd_index = FT_847_NATIVE_CAT_SET_MODE_MAIN_CW;
    break;
  case RIG_MODE_CWR:
    cmd_index = FT_847_NATIVE_CAT_SET_MODE_MAIN_CWR;
    break;
  case RIG_MODE_USB:
    cmd_index = FT_847_NATIVE_CAT_SET_MODE_MAIN_USB;
    break;
  case RIG_MODE_LSB:
    cmd_index = FT_847_NATIVE_CAT_SET_MODE_MAIN_LSB;
    break;
  case RIG_MODE_FM:
    cmd_index = FT_847_NATIVE_CAT_SET_MODE_MAIN_FM;
    break;
  default:
    return -RIG_EINVAL;       /* sorry, wrong MODE */
  }


  /*
   * Now set width
   */

  if (width == rig_passband_narrow(rig, mode)) {
    switch(mode) {
    case RIG_MODE_AM:
      cmd_index = FT_847_NATIVE_CAT_SET_MODE_MAIN_AMN;
      break;
    case RIG_MODE_FM:
      cmd_index = FT_847_NATIVE_CAT_SET_MODE_MAIN_FMN;
      break;
    case RIG_MODE_CW:
      cmd_index = FT_847_NATIVE_CAT_SET_MODE_MAIN_CWN;
      break;
    case RIG_MODE_CWR:
      cmd_index = FT_847_NATIVE_CAT_SET_MODE_MAIN_CWRN;
      break;
    case RIG_MODE_USB:
    case RIG_MODE_LSB:
      break;
    default:
      rig_debug(RIG_DEBUG_ERR,"%s: unsupported mode/width: %s/%d, narrow: %d\n",
                  __FUNCTION__, rig_strrmode(mode), width, 
                  rig_passband_narrow(rig, mode));
      return -RIG_EINVAL;           /* sorry, wrong MODE/WIDTH combo  */    
    }
  } else {
            if (width != RIG_PASSBAND_NORMAL && 
                                    width != rig_passband_normal(rig, mode)) {
                  return -RIG_EINVAL;           /* sorry, wrong MODE/WIDTH combo  */    
            }
      }
  /*
   * Now send the command
   */
  ret = opcode_vfo(rig, p_cmd, cmd_index, vfo);
  if (ret != RIG_OK)
        return ret;

  return write_block(&rs->rigport, (char*)p_cmd, YAESU_CMD_LENGTH);
}

int ft847_get_mode(RIG *rig, vfo_t vfo, rmode_t *mode, pbwidth_t *width) {
  freq_t freq;

  return get_freq_and_mode(rig, vfo, &freq, mode, width);
}


/*
 * Not exactly Split mode, this will set *SAT* Mode
 */
int ft847_set_split_vfo(RIG *rig, vfo_t vfo, split_t split, vfo_t tx_vfo)
{
  struct ft847_priv_data *priv = (struct ft847_priv_data*)rig->state.priv;
  unsigned char cmd_index;    /* index of sequence to send */
  int ret;

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

  switch(split) {
  case RIG_SPLIT_ON:
    cmd_index = FT_847_NATIVE_CAT_SAT_MODE_ON;
    break;
  case RIG_SPLIT_OFF:
    cmd_index = FT_847_NATIVE_CAT_SAT_MODE_OFF;
    break;
  default:
    return -RIG_EINVAL;       /* sorry, wrong split range */
  }

  ret = ft847_send_priv_cmd(rig,cmd_index);
  if (ret == RIG_OK)
        priv->sat_mode = split;

  return ret;
}

int ft847_get_split_vfo(RIG *rig, vfo_t vfo, split_t *split, vfo_t *tx_vfo)
{
  struct ft847_priv_data *priv = (struct ft847_priv_data*)rig->state.priv;

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

  *split = priv->sat_mode;
  *tx_vfo = RIG_VFO_SUB;

  return RIG_OK;
}

int ft847_set_split_freq(RIG *rig, vfo_t vfo, freq_t freq)
{
      return ft847_set_freq(rig, RIG_VFO_TX, freq);
}

int ft847_get_split_freq(RIG *rig, vfo_t vfo, freq_t *freq)
{
      return ft847_get_freq(rig, RIG_VFO_TX, freq);
}

int ft847_set_split_mode(RIG *rig, vfo_t vfo, rmode_t mode, pbwidth_t width)
{
      return ft847_set_mode(rig, RIG_VFO_TX, mode, width);
}

int ft847_get_split_mode(RIG *rig, vfo_t vfo, rmode_t *mode, pbwidth_t *width)
{
      return ft847_get_mode(rig, RIG_VFO_TX, mode, width);
}

/*
 * _set_ptt
 *
 */


int ft847_set_ptt(RIG *rig, vfo_t vfo, ptt_t ptt) {
  unsigned char cmd_index;    /* index of sequence to send */

  rig_debug(RIG_DEBUG_VERBOSE,"ft847:ft847_set_ptt called \n");

  switch(ptt) {
  case RIG_PTT_ON:
    cmd_index = FT_847_NATIVE_CAT_PTT_ON;
    break;
  case RIG_PTT_OFF:
    cmd_index = FT_847_NATIVE_CAT_PTT_OFF;
    break;
  default:
    return -RIG_EINVAL;       /* sorry, wrong ptt range */
  }

  /*
   * phew! now send cmd to rig
   */ 

  return ft847_send_priv_cmd(rig,cmd_index);

}

static int ft847_get_status(RIG *rig, int status_ci)
{
  struct ft847_priv_data *p = (struct ft847_priv_data *) rig->state.priv;
  unsigned char *data;
  int len;
  int n;

  switch (status_ci) {
  case FT_847_NATIVE_CAT_GET_RX_STATUS:
    data = &p->rx_status;
    len  = 1;
    break;
  case FT_847_NATIVE_CAT_GET_TX_STATUS:
    data = &p->tx_status;
    len  = 1;
    break;
  default:
    rig_debug(RIG_DEBUG_ERR, "ft847_get_status: Internal error!\n");
    return -RIG_EINTERNAL;
  }

  serial_flush(&rig->state.rigport);

  n = write_block(&rig->state.rigport, (char *) ncmd[status_ci].nseq, YAESU_CMD_LENGTH);
  if (n < 0)
    return n;

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

  if (n != len)
    return -RIG_EPROTO;

  return RIG_OK;
}

int ft847_get_ptt(RIG *rig, vfo_t vfo, ptt_t *ptt) {

  struct ft847_priv_data *p = (struct ft847_priv_data *) rig->state.priv;
  int n;


  n = ft847_get_status(rig, FT_847_NATIVE_CAT_GET_TX_STATUS);
  if (n < 0)
    return n;

  *ptt = (p->tx_status & 0x80) ? RIG_PTT_OFF : RIG_PTT_ON;

  return RIG_OK;
}


int ft847_get_dcd(RIG *rig, vfo_t vfo, dcd_t *dcd) {

  struct ft847_priv_data *p = (struct ft847_priv_data *) rig->state.priv;
  int n;


  n = ft847_get_status(rig, FT_847_NATIVE_CAT_GET_RX_STATUS);
  if (n < 0)
    return n;

  *dcd = (p->rx_status & 0x80) ? RIG_DCD_OFF : RIG_DCD_ON;

  return RIG_OK;
}



/*
 * Get the 'raw' signal strength
 * This number corresponds to the number of 'dots' in
 * the FT-847 display
 */
static int ft847_get_rawstr_level(RIG *rig, value_t *val)
{
  struct ft847_priv_data *p = (struct ft847_priv_data *) rig->state.priv;
  int n;


  n = ft847_get_status(rig, FT_847_NATIVE_CAT_GET_RX_STATUS);
  if (n < 0)
    return n;

  n = (p->rx_status & 0x1F);

  val->i = n;

  return RIG_OK;
}


/*
 * Get S-meter reading (in dB)
*/
static int ft847_get_smeter_level(RIG *rig, value_t *val)
{
  int n;

  n = ft847_get_rawstr_level(rig, val);
  if (n < 0)
    return n;

  /* 
   * The FT-847 S-meter readings over CAT returns
   * an integer that corresponds to the number of
   * 'dots' lit in the display. Use a conversion
   * function to convert the raw signal strength to dB 
   */
  n = val->i;
  if (n < 4)  /* <= S1 */
    val->i = -54 + (n * 2);
  else if (n < 20) /* S1 - S9 */
    val->i = -48 + ((n -3) * 3);
  else { /* > S9 */
    n -= 19;
    val->i = (n * 5);
  }
  
  return RIG_OK;
}

/*
 * Get the PO/ALC Meter Data
 */
static int ft847_get_alc_level(RIG *rig, value_t *val)
{
  struct ft847_priv_data *p = (struct ft847_priv_data *) rig->state.priv;
  int n;

  n = ft847_get_status(rig, FT_847_NATIVE_CAT_GET_TX_STATUS);
  if (n < 0)
    return n;

  n = (p->tx_status & 0x1F);

  val->f = (float)n / 0x1F;

  return RIG_OK;
}


/*
 * Get "level" data from rig.
 * The 847 supports S-meter readings in receive mode
 * and PO/ALC in transmit mode.  There is no way
 * to determine whether it's PO or ALC, unfortunately.
 */
int ft847_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 ft847_get_smeter_level(rig, val);
  case RIG_LEVEL_RAWSTR:
    return ft847_get_rawstr_level(rig, val);
  case RIG_LEVEL_ALC:
    return ft847_get_alc_level(rig, val);
  default:
    return -RIG_EINVAL;
  }

  return RIG_OK;

}

int ft847_set_func(RIG *rig, vfo_t vfo, setting_t func, int status)
{
  unsigned char p_cmd[YAESU_CMD_LENGTH]; /* sequence to send */
  int ret;
  ft847_native_cmd_t fcmd;

  if (!rig)
    return -RIG_EINVAL;

  switch (func) {
     case RIG_FUNC_TONE:
        fcmd = status ? FT_847_NATIVE_CAT_SET_CTCSS_ENC_ON_MAIN :
           FT_847_NATIVE_CAT_SET_CTCSS_DCS_OFF_MAIN;
        break;

     case RIG_FUNC_TSQL:
        fcmd = status ? FT_847_NATIVE_CAT_SET_CTCSS_ENC_DEC_ON_MAIN :
           FT_847_NATIVE_CAT_SET_CTCSS_DCS_OFF_MAIN;
        break;

     default:
        return -RIG_EINVAL;
  }

  ret = opcode_vfo(rig, p_cmd, fcmd, vfo);
  if (ret != RIG_OK)
        return ret;

  return write_block(&rig->state.rigport, (char*)p_cmd, YAESU_CMD_LENGTH);
}


int ft847_set_ctcss_tone (RIG *rig, vfo_t vfo, tone_t tone)
{
  unsigned char p_cmd[YAESU_CMD_LENGTH]; /* sequence to send */
  int i, ret;

  /*
   * 39 CTCSS CAT codes corresponding to ft847_ctcss_list
   */
  static const unsigned char ft847_ctcss_cat[] = {
  0x3F, 0x39, 0x1F, 0x3E, 0x0F, 0x3D, 0x1E, 0x3C, 0x0E, 0x3B, 
  0x1D, 0x3A, 0x0D, 0x1C, 0x0C, 0x1B, 0x0B, 0x1A, 0x0A, 0x19, 
  0x09, 0x18, 0x08, 0x17, 0x07, 0x16, 0x06, 0x15, 0x05, 0x14, 
  0x04, 0x13, 0x03, 0x12, 0x02, 0x11, 0x01, 0x10, 0x00, 
  };

  ret = opcode_vfo(rig, p_cmd, FT_847_NATIVE_CAT_SET_CTCSS_FREQ_MAIN, vfo);
  if (ret != RIG_OK)
        return ret;

#define FT847_CTCSS_NB 39

  for (i = 0; i<FT847_CTCSS_NB; i++)
  {
     if (ft847_ctcss_list[i] == tone)
        break;
  }
  if (i == FT847_CTCSS_NB)
     return -RIG_EINVAL;

  /* get associated CAT code */
  p_cmd[0] = ft847_ctcss_cat[i];

  return write_block(&rig->state.rigport, (char*)p_cmd, YAESU_CMD_LENGTH);
}

int ft847_set_ctcss_sql (RIG *rig, vfo_t vfo, tone_t tone)
{
   /* same opcode as tone */
   return ft847_set_ctcss_tone(rig, vfo, tone);
}

int ft847_set_dcs_sql (RIG *rig, vfo_t vfo, tone_t code)
{
  unsigned char p_cmd[YAESU_CMD_LENGTH]; /* sequence to send */
  int ret;

  ret = opcode_vfo(rig, p_cmd, FT_847_NATIVE_CAT_SET_DCS_CODE_MAIN, vfo);
  if (ret != RIG_OK)
        return ret;

  /* TODO: FT_847_NATIVE_CAT_SET_DCS_ON_MAIN here or with new RIG_FUNC_DCS? */

  /* DCS Code # (i.e. 07, 54=DCS Code 754) */
  to_bcd_be(p_cmd, code,4);   /* store bcd format in in p_cmd */

  return write_block(&rig->state.rigport, (char*)p_cmd, YAESU_CMD_LENGTH);

}

int ft847_set_rptr_shift (RIG *rig, vfo_t vfo, rptr_shift_t rptr_shift)
{
  unsigned char cmd_index;    /* index of sequence to send */

  if (vfo != RIG_VFO_CURR)
    return -RIG_ENTARGET;

  switch(rptr_shift) {
  case RIG_RPT_SHIFT_NONE:
    cmd_index = FT_847_NATIVE_CAT_SET_RPT_SHIFT_SIMPLEX;
    break;
  case RIG_RPT_SHIFT_MINUS:
    cmd_index = FT_847_NATIVE_CAT_SET_RPT_SHIFT_MINUS;
    break;
  case RIG_RPT_SHIFT_PLUS:
    cmd_index = FT_847_NATIVE_CAT_SET_RPT_SHIFT_PLUS;
    break;

  default:
    return -RIG_EINVAL;       /* sorry, wrong shift */
  }

  return ft847_send_priv_cmd(rig,cmd_index);
}

int ft847_set_rptr_offs (RIG *rig, vfo_t vfo, shortfreq_t rptr_offs)
{
  unsigned char p_cmd[YAESU_CMD_LENGTH]; /* sequence to send */

  if (vfo != RIG_VFO_CURR)
    return -RIG_ENTARGET;

  memcpy(p_cmd,&ncmd[FT_847_NATIVE_CAT_SET_RPT_OFFSET].nseq,YAESU_CMD_LENGTH);  


  to_bcd_be(p_cmd,rptr_offs/10,8);  /* store bcd format in in p_cmd */

  return write_block(&rig->state.rigport, (char*)p_cmd, YAESU_CMD_LENGTH);
}


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