/*
*  Hamlib Kenwood backend - TS850 description
*  Copyright (c) 2000-2004 by Stephane Fillod
*
*
 *   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 2.1 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
*
*/

#include <stdlib.h>
#include <stdio.h>
#include <math.h>

#include <hamlib/rig.h>
#include <cal.h>
#include "kenwood.h"


#define TS850_ALL_MODES (RIG_MODE_AM|RIG_MODE_CW|RIG_MODE_CWR|RIG_MODE_SSB|RIG_MODE_FM|RIG_MODE_RTTY|RIG_MODE_RTTYR)
#define TS850_OTHER_TX_MODES (RIG_MODE_CW|RIG_MODE_CWR|RIG_MODE_SSB|RIG_MODE_FM|RIG_MODE_RTTY|RIG_MODE_RTTYR)
#define TS850_AM_TX_MODES (RIG_MODE_AM)

#define TS850_FUNC_ALL (RIG_FUNC_AIP|RIG_FUNC_LOCK)

#define TS850_LEVEL_GET (RIG_LEVEL_SWR|RIG_LEVEL_COMP|RIG_LEVEL_ALC|RIG_LEVEL_CWPITCH|RIG_LEVEL_RAWSTR|RIG_LEVEL_STRENGTH|RIG_LEVEL_SLOPE_LOW|RIG_LEVEL_SLOPE_HIGH)
#define TS850_LEVEL_SET (RIG_LEVEL_CWPITCH|RIG_LEVEL_SLOPE_LOW|RIG_LEVEL_SLOPE_HIGH)

#define TS850_VFO (RIG_VFO_A|RIG_VFO_B)

#define TS850_VFO_OPS (RIG_OP_UP|RIG_OP_DOWN)

#define TS850_CHANNEL_CAPS \
.freq=1,\
.mode=1,\
.tx_freq=1,\
.tx_mode=1,\
.split=1,\
.flags=RIG_CHFLAG_SKIP, \
.ctcss_tone=1

#define TS850_STR_CAL { 4, \
    { \
        {   0, -54 }, \
        {  15, 0 }, \
        {  22,30 }, \
        {  30, 66}, \
    } }


static struct kenwood_priv_caps  ts850_priv_caps  =
{
    .cmdtrm =  EOM_KEN,
};

/* forward definitions */
static int ts850_set_rit(RIG *rig, vfo_t vfo, shortfreq_t rit);
static int ts850_set_xit(RIG *rig, vfo_t vfo, shortfreq_t xit);
static int ts850_get_level(RIG *rig, vfo_t vfo, setting_t level, value_t *val);
static int ts850_set_channel(RIG *rig, vfo_t vfo, const channel_t *chan);

static const struct confparams ts850_ext_parms[] =
{
    {
        TOK_FINE, "fine", "Fine", "Fine step mode",
        NULL, RIG_CONF_CHECKBUTTON, { }
    },
    {
        TOK_VOICE, "voice", "Voice", "Voice recall",
        NULL, RIG_CONF_BUTTON, { }
    },
    {
        TOK_XIT, "xit", "XIT", "XIT",
        NULL, RIG_CONF_CHECKBUTTON, { }
    },
    {
        TOK_RIT, "rit", "RIT", "RIT",
        NULL, RIG_CONF_CHECKBUTTON, { }
    },
    { RIG_CONF_END, NULL, }
};

/*
* ts850 rig capabilities.
* Notice that some rigs share the same functions.
* Also this struct is READONLY!
*/
const struct rig_caps ts850_caps =
{
    RIG_MODEL(RIG_MODEL_TS850),
    .model_name = "TS-850",
    .mfg_name =  "Kenwood",
    .version =  BACKEND_VER ".0",
    .copyright =  "LGPL",
    .status =  RIG_STATUS_STABLE,
    .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 =  4800,
    .serial_data_bits =  8,
    .serial_stop_bits =  2,
    .serial_parity =  RIG_PARITY_NONE,
    .serial_handshake =  RIG_HANDSHAKE_HARDWARE,
    .write_delay =  0,
    .post_write_delay =  100,
    .timeout =  500,
    .retry =  10,

    .has_get_func =  TS850_FUNC_ALL,
    .has_set_func =  TS850_FUNC_ALL,
    .has_get_level =  TS850_LEVEL_GET,
    .has_set_level =  TS850_LEVEL_SET,
    .has_get_parm =  RIG_PARM_NONE,
    .has_set_parm =  RIG_PARM_NONE,
    .level_gran =
    {
#include "level_gran_kenwood.h"
        [LVL_CWPITCH] = { .min = { .i = 400 }, .max = { .i = 1000 }, .step = { .i = 50 } },
    },
    .parm_gran =  {},
    .extparms = ts850_ext_parms,
    .ctcss_list =  kenwood38_ctcss_list,
    .dcs_list =  NULL,
    .preamp =   { RIG_DBLST_END, },
    .attenuator =   { RIG_DBLST_END, },
    .max_rit =  kHz(1.27),
    .max_xit =  kHz(1.27),
    .max_ifshift =  Hz(0),
    .vfo_ops = TS850_VFO_OPS,
    .targetable_vfo =  RIG_TARGETABLE_FREQ,
    .transceive =  RIG_TRN_RIG,
    // No AGC levels
    .bank_qty =   0,
    .chan_desc_sz =  3,
    .chan_list =  {
        {  0, 89, RIG_MTYPE_MEM, {TS850_CHANNEL_CAPS}},
        { 90, 99, RIG_MTYPE_EDGE, {TS850_CHANNEL_CAPS}},
        RIG_CHAN_END,
    },

    .rx_range_list1 =  {
        {kHz(100), MHz(30), TS850_ALL_MODES, -1, -1, TS850_VFO},
        RIG_FRNG_END,
    }, /* rx range */
    .tx_range_list1 =  {
        {kHz(1810), kHz(1850), TS850_OTHER_TX_MODES, W(5), W(100), TS850_VFO}, /* 100W class */
        {kHz(1810), kHz(1850), TS850_AM_TX_MODES, W(2), W(40), TS850_VFO},  /* 40W class */
        {kHz(3500), kHz(3800), TS850_OTHER_TX_MODES, W(5), W(100), TS850_VFO},
        {kHz(3500), kHz(3800), TS850_AM_TX_MODES, W(2), W(40), TS850_VFO},
        {MHz(7), kHz(7100), TS850_OTHER_TX_MODES, W(5), W(100), TS850_VFO},
        {MHz(7), kHz(7100), TS850_AM_TX_MODES, W(2), W(40), TS850_VFO},
        {kHz(10100), kHz(10150), TS850_OTHER_TX_MODES, W(5), W(100), TS850_VFO},
        {kHz(10100), kHz(10150), TS850_AM_TX_MODES, W(2), W(40), TS850_VFO},
        {MHz(14), kHz(14350), TS850_OTHER_TX_MODES, W(5), W(100), TS850_VFO},
        {MHz(14), kHz(14350), TS850_AM_TX_MODES, W(2), W(40), TS850_VFO},
        {kHz(18068), kHz(18168), TS850_OTHER_TX_MODES, W(5), W(100), TS850_VFO},
        {kHz(18068), kHz(18168), TS850_AM_TX_MODES, W(2), W(40), TS850_VFO},
        {MHz(21), kHz(21450), TS850_OTHER_TX_MODES, W(5), W(100), TS850_VFO},
        {MHz(21), kHz(21450), TS850_AM_TX_MODES, W(2), W(40), TS850_VFO},
        {kHz(24890), kHz(24990), TS850_OTHER_TX_MODES, W(5), W(100), TS850_VFO},
        {kHz(24890), kHz(24990), TS850_AM_TX_MODES, W(2), W(40), TS850_VFO},
        {MHz(28), kHz(29700), TS850_OTHER_TX_MODES, W(5), W(100), TS850_VFO},
        {MHz(28), kHz(29700), TS850_AM_TX_MODES, W(2), W(40), TS850_VFO},
        RIG_FRNG_END,
    },

    .rx_range_list2 =  {
        {kHz(100), MHz(30), TS850_ALL_MODES, -1, -1, TS850_VFO},
        RIG_FRNG_END,
    }, /* rx range */
    .tx_range_list2 =  {
        {kHz(1800), MHz(2) - 1, TS850_OTHER_TX_MODES, W(5), W(100), TS850_VFO}, /* 100W class */
        {kHz(1800), MHz(2) - 1, TS850_AM_TX_MODES, W(2), W(40), TS850_VFO}, /* 40W class */
        {kHz(3500), MHz(4) - 1, TS850_OTHER_TX_MODES, W(5), W(100), TS850_VFO},
        {kHz(3500), MHz(4) - 1, TS850_AM_TX_MODES, W(2), W(40), TS850_VFO},
        {MHz(7), kHz(7300), TS850_OTHER_TX_MODES, W(5), W(100), TS850_VFO},
        {MHz(7), kHz(7300), TS850_AM_TX_MODES, W(2), W(40), TS850_VFO},
        {kHz(10100), kHz(10150), TS850_OTHER_TX_MODES, W(5), W(100), TS850_VFO},
        {kHz(10100), kHz(10150), TS850_AM_TX_MODES, W(2), W(40), TS850_VFO},
        {MHz(14), kHz(14350), TS850_OTHER_TX_MODES, W(5), W(100), TS850_VFO},
        {MHz(14), kHz(14350), TS850_AM_TX_MODES, W(2), W(40), TS850_VFO},
        {kHz(18068), kHz(18168), TS850_OTHER_TX_MODES, W(5), W(100), TS850_VFO},
        {kHz(18068), kHz(18168), TS850_AM_TX_MODES, W(2), W(40), TS850_VFO},
        {MHz(21), kHz(21450), TS850_OTHER_TX_MODES, W(5), W(100), TS850_VFO},
        {MHz(21), kHz(21450), TS850_AM_TX_MODES, W(2), W(40), TS850_VFO},
        {kHz(24890), kHz(24990), TS850_OTHER_TX_MODES, W(5), W(100), TS850_VFO},
        {kHz(24890), kHz(24990), TS850_AM_TX_MODES, W(2), W(40), TS850_VFO},
        {MHz(28), kHz(29700), TS850_OTHER_TX_MODES, W(5), W(100), TS850_VFO},
        {MHz(28), kHz(29700), TS850_AM_TX_MODES, W(2), W(40), TS850_VFO},
        RIG_FRNG_END,
    }, /* tx range */
    .tuning_steps =  {
        {TS850_ALL_MODES, 0},   /* any tuning step */
        RIG_TS_END,
    },
    /* mode/filter list, remember: order matters! */
    .filters =  {
        {TS850_ALL_MODES, kHz(12)},
        {TS850_ALL_MODES, kHz(6)},
        {TS850_ALL_MODES, kHz(2.7)},
        {TS850_ALL_MODES, Hz(500)},
        {TS850_ALL_MODES, Hz(250)},
        RIG_FLT_END,
    },
    .str_cal = TS850_STR_CAL,
    .priv = (void *)& ts850_priv_caps,

    .rig_init = kenwood_init,
    .rig_open = kenwood_open,
    .rig_close = kenwood_close,
    .rig_cleanup = kenwood_cleanup,
    .set_freq =  kenwood_set_freq,
    .get_freq =  kenwood_get_freq,
    .set_rit =  ts850_set_rit,
    .get_rit =  kenwood_get_rit,
    .set_xit =  ts850_set_xit,
    .get_xit =  kenwood_get_xit,
    .set_mode = kenwood_set_mode,
    .get_mode = kenwood_get_mode_if,
    .set_vfo =  kenwood_set_vfo,
    .get_vfo =  kenwood_get_vfo_if,
    .set_split_vfo =  kenwood_set_split_vfo,
    .set_ctcss_tone = kenwood_set_ctcss_tone_tn,
    .get_ctcss_tone = kenwood_get_ctcss_tone,
    .get_ptt =  kenwood_get_ptt,
    .set_ptt =  kenwood_set_ptt_safe,
    .set_func = kenwood_set_func,
    .get_func = kenwood_get_func,
    .set_level = kenwood_set_level,
    .get_level =  ts850_get_level,
    .vfo_op =  kenwood_vfo_op,
    .set_mem =  kenwood_set_mem,
    .get_mem =  kenwood_get_mem_if,
    .get_channel = kenwood_get_channel,
    .set_channel = ts850_set_channel,
    .set_trn =  kenwood_set_trn,
    .hamlib_check_rig_caps = HAMLIB_CHECK_RIG_CAPS
};

/*
* Function definitions below
*/

int ts850_set_rit(RIG *rig, vfo_t vfo, shortfreq_t rit)
{
    char buf[50];
    unsigned char c;
    int retval, i;

    if (rit == 0)
    {
        retval = kenwood_transaction(rig, "RT0", NULL, 0);

        if (retval != RIG_OK)
        {
            return retval;
        }
    }
    else
    {
        retval = kenwood_transaction(rig, "RT1", NULL, 0);

        if (retval != RIG_OK)
        {
            return retval;
        }
    }

    if (rit > 0)
    {
        c = 'U';
    }
    else
    {
        c = 'D';
    }

    SNPRINTF(buf, sizeof(buf), "R%c", c);

    retval = kenwood_transaction(rig, "RC", NULL, 0);

    if (retval != RIG_OK)
    {
        return retval;
    }

    for (i = 0; i < labs(lrint(rit / 20)); i++)
    {
        retval = kenwood_transaction(rig, buf, NULL, 0);

        if (retval != RIG_OK)
        {
            return retval;
        }
    }

    return RIG_OK;
}

int ts850_set_xit(RIG *rig, vfo_t vfo, shortfreq_t xit)
{
    char buf[50];
    unsigned char c;
    int retval, i;

    if (xit == 0)
    {
        retval = kenwood_transaction(rig, "XT0", NULL, 0);

        if (retval != RIG_OK)
        {
            return retval;
        }
    }
    else
    {
        retval = kenwood_transaction(rig, "XT1", NULL, 0);

        if (retval != RIG_OK)
        {
            return retval;
        }
    }

    retval = kenwood_transaction(rig, "RC", NULL, 0);

    if (retval != RIG_OK)
    {
        return retval;
    }

    if (xit > 0)
    {
        c = 'U';
    }
    else
    {
        c = 'D';
    }

    SNPRINTF(buf, sizeof(buf), "R%c", c);

    for (i = 0; i < labs(lrint(xit / 20)); i++)
    {
        retval = kenwood_transaction(rig, buf, NULL, 0);

        if (retval != RIG_OK)
        {
            return retval;
        }
    }

    return RIG_OK;
}

static char mode_to_char(rmode_t mode)
{
    switch (mode)
    {
    case RIG_MODE_CW:       return (MD_CW);

    case RIG_MODE_CWR:      return (MD_CWR);

    case RIG_MODE_USB:      return (MD_USB);

    case RIG_MODE_LSB:      return (MD_LSB);

    case RIG_MODE_FM:       return (MD_FM);

    case RIG_MODE_AM:       return (MD_AM);

    case RIG_MODE_RTTY:     return (MD_FSK);

    case RIG_MODE_RTTYR:    return (MD_FSKR);

    default:
        rig_debug(RIG_DEBUG_WARN, "%s: unsupported mode %s\n", __func__,
                  rig_strrmode(mode));
    }

    return (RIG_MODE_NONE);
}

int ts850_get_level(RIG *rig, vfo_t vfo, setting_t level, value_t *val)
{
    char lvlbuf[50];
    int i, retval;

    if (vfo != RIG_VFO_CURR)
    {
        return -RIG_EINVAL;
    }

    switch (level)
    {
    case RIG_LEVEL_RAWSTR:
        retval = kenwood_transaction(rig, "SM", lvlbuf, sizeof(lvlbuf));

        if (retval != RIG_OK)
        {
            return retval;
        }

        val->i = atoi(&lvlbuf[2]);
        break;

    case RIG_LEVEL_STRENGTH:
        retval = kenwood_transaction(rig, "SM", lvlbuf, sizeof(lvlbuf));

        if (retval != RIG_OK)
        {
            return retval;
        }

        val->i = atoi(&lvlbuf[2]);
        //val->i = (val->i * 4) - 54;  Old approximate way of doing it.
        val->i = (int)rig_raw2val(val->i, &rig->caps->str_cal);
        break;

    case RIG_LEVEL_SWR:
        retval = kenwood_transaction(rig, "RM1", NULL, 0);

        if (retval != RIG_OK)
        {
            return retval;
        }

        retval = kenwood_transaction(rig, "RM", lvlbuf, sizeof(lvlbuf));

        if (retval != RIG_OK)
        {
            return retval;
        }

        i = atoi(&lvlbuf[3]);

        if (i == 30)
        {
            val->f = 150.0;    /* infinity :-) */
        }
        else
        {
            val->f = 60.0 / (30.0 - (float)i) - 1.0;
        }

        break;

    case RIG_LEVEL_COMP:
        retval = kenwood_transaction(rig, "RM2", NULL, 0);

        if (retval != RIG_OK)
        {
            return retval;
        }

        retval = kenwood_transaction(rig, "RM", lvlbuf, sizeof(lvlbuf));

        if (retval != RIG_OK)
        {
            return retval;
        }

        val->f = (float)atoi(&lvlbuf[3]) / 30.0;
        break;

    case RIG_LEVEL_ALC:
        retval = kenwood_transaction(rig, "RM3", NULL, 0);

        if (retval != RIG_OK)
        {
            return retval;
        }

        retval = kenwood_transaction(rig, "RM", lvlbuf, sizeof(lvlbuf));

        if (retval != RIG_OK)
        {
            return retval;
        }

        val->f = (float)atoi(&lvlbuf[3]) / 30.0;
        break;

    default:
        return kenwood_get_level(rig, vfo, level, val);
    }

    return retval; // Never gets here.
}

int ts850_set_channel(RIG *rig, vfo_t vfo, const channel_t *chan)
{
    char cmdbuf[30];
    int retval;
    int num, freq, tx_freq, tone;
    char mode, tx_mode, tones;

    num = chan->channel_num;
    freq = (int)chan->freq;
    mode = mode_to_char(chan->mode);

    if (chan->split == RIG_SPLIT_ON)
    {
        tx_freq = (int)chan->tx_freq;
        tx_mode = mode_to_char(chan->tx_mode);
    }
    else
    {
        tx_freq = 0;
        tx_mode = '\0';
    }

    for (tone = 1; rig->caps->ctcss_list[tone - 1] != 0 && tone < 39; tone++)
    {
        if (rig->caps->ctcss_list[tone - 1] == chan->ctcss_tone)
        {
            break;
        }
    }

    if (chan->ctcss_tone != 0)
    {
        tones = '1';
    }
    else
    {
        tones = '0';
        tone = 0;
    }

    SNPRINTF(cmdbuf, sizeof(cmdbuf), "MW0 %02d%011d%c0%c%02d ",
             num, freq, mode, tones, tone);
    retval = kenwood_transaction(rig, cmdbuf, NULL, 0);

    if (retval != RIG_OK)
    {
        return retval;
    }

    SNPRINTF(cmdbuf, sizeof(cmdbuf), "MW1 %02d%011d%c0%c%02d ",
             num, tx_freq, tx_mode, tones, tone);
    retval = kenwood_transaction(rig, cmdbuf, NULL, 0);

    if (retval != RIG_OK)
    {
        return retval;
    }

    return RIG_OK;
}