/*
 *  Hamlib CI-V backend - description of IC-R75
 *  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 <string.h>

#include "hamlib/rig.h"
#include "misc.h"
#include "idx_builtin.h"

#include "icom.h"
#include "icom_defs.h"
#include "frame.h"


/*
 * IC-R75
 *
 * TODO:
 *  $1A command:
 *  - set_parm, set_trn, IF filter setting, etc.
 */

#define ICR75_MODES (RIG_MODE_AM|RIG_MODE_CW|RIG_MODE_CWR|RIG_MODE_SSB|RIG_MODE_FM|RIG_MODE_RTTY|RIG_MODE_RTTYR|RIG_MODE_AMS)

#define ICR75_FUNC_ALL (RIG_FUNC_NB|RIG_FUNC_ANF|RIG_FUNC_NR)

#define ICR75_LEVEL_ALL (RIG_LEVEL_ATT|RIG_LEVEL_AF|RIG_LEVEL_RF|RIG_LEVEL_SQL|RIG_LEVEL_NR|RIG_LEVEL_PBT_IN|RIG_LEVEL_PBT_OUT|RIG_LEVEL_CWPITCH|RIG_LEVEL_PREAMP|RIG_LEVEL_AGC|RIG_LEVEL_RAWSTR|RIG_LEVEL_STRENGTH)

#define ICR75_PARM_ALL (RIG_PARM_ANN|RIG_PARM_APO|RIG_PARM_BACKLIGHT|RIG_PARM_BEEP|RIG_PARM_TIME)

#define ICR75_VFO_ALL (RIG_VFO_VFO|RIG_VFO_MEM)

#define ICR75_VFO_OPS (RIG_OP_FROM_VFO|RIG_OP_TO_VFO|RIG_OP_MCL)
#define ICR75_SCAN_OPS (RIG_SCAN_MEM|RIG_SCAN_VFO)

#define ICR75_ANTS (RIG_ANT_1|RIG_ANT_2)

#define ICR75_STR_CAL { 17, { \
        {   0, -60 }, \
        {  37, -54 }, \
        {  52, -48 }, \
        {  61, -42 }, \
        {  72, -36 }, \
        {  86, -30 }, \
        {  95, -24 }, \
        { 109, -18 }, \
        { 124, -12 }, \
        { 128, -6 }, \
        { 146,  0 }, \
        { 166, 10 }, \
        { 186, 20 }, \
        { 199, 30 }, \
        { 225, 40 }, \
        { 233, 50 }, \
        { 255, 60 }, \
    } }

/*
 * channel caps.
 */
#define ICR75_MEM_CAP { \
    .freq = 1,  \
    .mode = 1,  \
    .width = 1, \
    .ant = 1,   \
    .levels = RIG_LEVEL_ATT|RIG_LEVEL_PREAMP,   \
    .channel_desc = 1,  \
    .flags = 1, \
}

static int icr75_set_channel(RIG *rig, vfo_t vfo, const channel_t *chan);
static int icr75_get_channel(RIG *rig, vfo_t vfo, channel_t *chan,
                             int read_only);
static int icr75_set_parm(RIG *rig, setting_t parm, value_t val);
static int icr75_get_parm(RIG *rig, setting_t parm, value_t *val);

static struct icom_priv_caps icr75_priv_caps =
{
    0x5a,   /* default address */
    0,      /* 731 mode */
    0,    /* no XCHG */
    r75_ts_sc_list,
    .antack_len = 2,
    .ant_count = 2
};

struct rig_caps icr75_caps =
{
    RIG_MODEL(RIG_MODEL_ICR75),
    .model_name = "IC-R75",
    .mfg_name =  "Icom",
    .version =  BACKEND_VER ".0",
    .copyright =  "LGPL",
    .status =  RIG_STATUS_STABLE,
    .rig_type =  RIG_TYPE_RECEIVER,
    .ptt_type =  RIG_PTT_NONE,
    .dcd_type =  RIG_DCD_RIG,
    .port_type =  RIG_PORT_SERIAL,
    .serial_rate_min =  300,
    .serial_rate_max =  19200,
    .serial_data_bits =  8,
    .serial_stop_bits =  1,
    .serial_parity =  RIG_PARITY_NONE,
    .serial_handshake =  RIG_HANDSHAKE_NONE,
    .write_delay =  0,
    .post_write_delay =  1,
    .timeout =  1000,
    .retry =  3,
    .has_get_func =  ICR75_FUNC_ALL,
    .has_set_func =  ICR75_FUNC_ALL,
    .has_get_level =  ICR75_LEVEL_ALL,
    .has_set_level =  RIG_LEVEL_SET(ICR75_LEVEL_ALL),
    .has_get_parm =  ICR75_PARM_ALL,
    .has_set_parm =  RIG_PARM_SET(ICR75_PARM_ALL),
    .level_gran =
    {
#include "level_gran_icom.h"
        [LVL_PBT_IN] = { .min = { .f = -1280 }, .max = { .f = +1280 }, .step = { .f = 15 } },
        [LVL_PBT_OUT] = { .min = { .f = -1280 }, .max = { .f = +1280 }, .step = { .f = 15 } },
        [LVL_CWPITCH] = { .min = { .i = 300 }, .max = { .i = 900 }, .step = { .i = 10 } },
    },
    .parm_gran =  {
        [PARM_APO] = { .min = { .i = 1 }, .max = { .i = 1439} },
        [PARM_TIME] = { .min = { .i = 0 }, .max = { .i = 86399} },
        [PARM_BACKLIGHT] = {.min = {.f = 0.0f}, .max = {.f = 1.0f}, .step = {.f = 1.0f / 255.0f}},
        [PARM_BANDSELECT] = {.step = {.s = "BANDUNUSED,BAND160M,BAND80M,BAND40M,BAND30M,BAND20M,BAND17M,BAND15M,BAND12M,BAND10M,BAND6M,BANDGEN"}},
        [PARM_BEEP] = {.min = {.i = 0}, .max = {.i = 1}, .step = {.i = 1}},
        [PARM_ANN] = {.min = {.i = 0}, .max = {.i = 2}, .step = {.i = 1}},
    },

    .ctcss_list =  NULL,
    .dcs_list =  NULL,
    .preamp =   { 10, 20, RIG_DBLST_END, }, /* TBC */
    .attenuator =   { 20, RIG_DBLST_END, }, /* TBC */
    .max_rit =  Hz(0),
    .max_xit =  Hz(0),
    .max_ifshift =  Hz(0),
    .targetable_vfo =  0,
    .vfo_ops =  ICR75_VFO_OPS,
    .scan_ops =  ICR75_SCAN_OPS,
    .transceive =  RIG_TRN_RIG,
    .bank_qty =   0,
    .chan_desc_sz =  8,

    .chan_list =  {
        {   1,  99, RIG_MTYPE_MEM, ICR75_MEM_CAP  },
        { 100, 101, RIG_MTYPE_EDGE, ICR75_MEM_CAP  },
        RIG_CHAN_END,
    },

    .rx_range_list1 =   {
        {kHz(30), MHz(60), ICR75_MODES, -1, -1, ICR75_VFO_ALL, ICR75_ANTS},
        RIG_FRNG_END,
    },
    .tx_range_list1 =   { RIG_FRNG_END, },

    .rx_range_list2 =   {
        {kHz(30), MHz(60), ICR75_MODES, -1, -1, ICR75_VFO_ALL, ICR75_ANTS},
        RIG_FRNG_END,
    },
    .tx_range_list2 =   { RIG_FRNG_END, },

    .tuning_steps =     {
        {ICR75_MODES, Hz(10)},
        {ICR75_MODES, Hz(100)},
        {ICR75_MODES, kHz(1)},
        {ICR75_MODES, kHz(5)},
        {ICR75_MODES, kHz(6.25)},
        {ICR75_MODES, kHz(9)},
        {ICR75_MODES, kHz(10)},
        {ICR75_MODES, kHz(12.5)},
        {ICR75_MODES, kHz(20)},
        {ICR75_MODES, kHz(25)},
        {ICR75_MODES, kHz(100)},
        {ICR75_MODES, MHz(1)},
        RIG_TS_END,
    },
    /* mode/filter list, remember: order matters! */
    .filters =  {
        {RIG_MODE_SSB | RIG_MODE_CW | RIG_MODE_CWR | RIG_MODE_RTTY | RIG_MODE_RTTYR, kHz(2.4)},
        {RIG_MODE_SSB | RIG_MODE_CW | RIG_MODE_CWR | RIG_MODE_RTTY | RIG_MODE_RTTYR, kHz(1.9)},
        {RIG_MODE_SSB | RIG_MODE_CW | RIG_MODE_CWR | RIG_MODE_RTTY | RIG_MODE_RTTYR, kHz(6)},
        {RIG_MODE_AM | RIG_MODE_AMS, kHz(6)},
        {RIG_MODE_AM | RIG_MODE_AMS, kHz(2.4)},
        {RIG_MODE_AM | RIG_MODE_AMS, kHz(15)},
        {RIG_MODE_FM, kHz(15)},
        {RIG_MODE_FM, kHz(6)},
        RIG_FLT_END,
    },
    .str_cal = ICR75_STR_CAL,

    .cfgparams =  icom_cfg_params,
    .set_conf =  icom_set_conf,
    .get_conf =  icom_get_conf,

    .priv = (void *)& icr75_priv_caps,
    .rig_init =   icom_init,
    .rig_cleanup =   icom_cleanup,
    .rig_open =  icom_rig_open,
    .rig_close =  icom_rig_close,

    .set_freq =  icom_set_freq,
    .get_freq =  icom_get_freq,
    .set_mode =  icom_set_mode,
    .get_mode =  icom_get_mode,
    .set_vfo =  icom_set_vfo,
    .set_ant =  icom_set_ant,
    .get_ant =  icom_get_ant,

    .decode_event =  icom_decode_event,
    .set_func =  icom_set_func,
    .get_func =  icom_get_func,
    .set_level =  icom_set_level,
    .get_level =  icom_get_level,
    .set_parm =  icr75_set_parm,
    .get_parm =  icr75_get_parm,
    .get_dcd =  icom_get_dcd,
    .set_mem =  icom_set_mem,
    .vfo_op =  icom_vfo_op,
    .scan =  icom_scan,
    .set_ts =  icom_set_ts,
    .set_powerstat = icom_set_powerstat,
    .get_powerstat = icom_get_powerstat,

    .set_channel = icr75_set_channel,
    .get_channel = icr75_get_channel,

    .hamlib_check_rig_caps = HAMLIB_CHECK_RIG_CAPS
};


/*
 * icr75_set_channel
 * Assumes rig!=NULL, STATE(rig)->priv!=NULL, chan!=NULL
 * TODO: still a WIP --SF
 */
int icr75_set_channel(RIG *rig, vfo_t vfo, const channel_t *chan)
{
    struct icom_priv_data *priv;
    struct rig_state *rs;
    unsigned char chanbuf[MAXFRAMELEN], ackbuf[MAXFRAMELEN];
    int chan_len, freq_len, ack_len, retval;
    unsigned char icmode;
    signed char icmode_ext;
    int err;

    rs = STATE(rig);
    priv = (struct icom_priv_data *)rs->priv;

    to_bcd_be(chanbuf, chan->channel_num, 4);

    chanbuf[2] = S_MEM_CNTNT_SLCT;

    freq_len = priv->civ_731_mode ? 4 : 5;
    /*
     * to_bcd requires nibble len
     */
    to_bcd(chanbuf + 3, chan->freq, freq_len * 2);

    chan_len = 2 + freq_len + 1;

    err = rig2icom_mode(rig, vfo, chan->mode, chan->width,
                        &icmode, &icmode_ext);

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

    chanbuf[chan_len++] = icmode;
    chanbuf[chan_len++] = icmode_ext;

    to_bcd_be(chanbuf + chan_len++,
              chan->levels[rig_setting2idx(RIG_LEVEL_ATT)].i, 2);
    to_bcd_be(chanbuf + chan_len++,
              chan->levels[rig_setting2idx(RIG_LEVEL_PREAMP)].i, 2);

    to_bcd_be(chanbuf + chan_len++, chan->ant, 2);
    memset(chanbuf + chan_len, 0, 8);
    SNPRINTF((char *)(chanbuf + chan_len), 9, "%.8s", chan->channel_desc);
    chan_len += 8;

    retval = icom_transaction(rig, C_CTL_MEM, S_MEM_CNTNT,
                              chanbuf, chan_len, ackbuf, &ack_len);

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

    if (ack_len != 1 || ackbuf[0] != ACK)
    {
        rig_debug(RIG_DEBUG_ERR, "icom_set_channel: ack NG (%#.2x), "
                  "len=%d\n", ackbuf[0], ack_len);
        return -RIG_ERJCTED;
    }

    return RIG_OK;
}

/*
 * icr75_get_channel
 * Assumes rig!=NULL, STATE(rig)->priv!=NULL, chan!=NULL
 * TODO: still a WIP --SF
 */
int icr75_get_channel(RIG *rig, vfo_t vfo, channel_t *chan, int read_only)
{
    struct icom_priv_data *priv;
    struct rig_state *rs;
    unsigned char chanbuf[24];
    int chan_len, freq_len, retval;

    rs = STATE(rig);
    priv = (struct icom_priv_data *)rs->priv;

    to_bcd_be(chanbuf, chan->channel_num, 4);
    chan_len = 2;

    freq_len = priv->civ_731_mode ? 4 : 5;

    retval = icom_transaction(rig, C_CTL_MEM, S_MEM_CNTNT,
                              chanbuf, chan_len, chanbuf, &chan_len);

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

    chan->vfo = RIG_VFO_MEM;
    chan->ant = RIG_ANT_NONE;
    chan->freq = 0;
    chan->mode = RIG_MODE_NONE;
    chan->width = RIG_PASSBAND_NORMAL;
    chan->tx_freq = 0;
    chan->tx_mode = RIG_MODE_NONE;
    chan->tx_width = RIG_PASSBAND_NORMAL;
    chan->split = RIG_SPLIT_OFF;
    chan->tx_vfo = RIG_VFO_NONE;
    chan->rptr_shift = RIG_RPT_SHIFT_NONE;
    chan->rptr_offs = 0;
    chan->tuning_step = 0;
    chan->rit = 0;
    chan->xit = 0;
    chan->funcs = 0;
    chan->levels[rig_setting2idx(RIG_LEVEL_PREAMP)].i = 0;
    chan->levels[rig_setting2idx(RIG_LEVEL_ATT)].i = 0;
    chan->levels[rig_setting2idx(RIG_LEVEL_AF)].f = 0;
    chan->levels[rig_setting2idx(RIG_LEVEL_RF)].f = 0;
    chan->levels[rig_setting2idx(RIG_LEVEL_SQL)].f = 0;
    chan->levels[rig_setting2idx(RIG_LEVEL_NR)].f = 0;
    chan->levels[rig_setting2idx(RIG_LEVEL_PBT_IN)].f = 0;
    chan->levels[rig_setting2idx(RIG_LEVEL_PBT_OUT)].f = 0;
    chan->levels[rig_setting2idx(RIG_LEVEL_CWPITCH)].i = 0;
    chan->levels[rig_setting2idx(RIG_LEVEL_AGC)].i = RIG_AGC_OFF;
    chan->ctcss_tone = 0;
    chan->ctcss_sql = 0;
    chan->dcs_code = 0;
    chan->dcs_sql = 0;
    chan->scan_group = 0;
    chan->flags = RIG_CHFLAG_SKIP;
    strcpy(chan->channel_desc, "        ");

    /*
     * freqbuf should contain Cn,Data area
     */
    if ((chan_len != freq_len + 18) && (chan_len != 5))
    {
        rig_debug(RIG_DEBUG_ERR, "icr75_get_channel: wrong frame len=%d\n",
                  chan_len);
        return -RIG_ERJCTED;
    }

    /* do this only if not a blank channel */
    if (chan_len != 5)
    {
        /*
         * from_bcd requires nibble len
         */
        chan->flags = RIG_CHFLAG_NONE;

        chan->freq = from_bcd(chanbuf + 5, freq_len * 2);

        chan_len = 4 + freq_len + 1;

        icom2rig_mode(rig, chanbuf[chan_len], chanbuf[chan_len + 1],
                      &chan->mode, &chan->width);
        chan_len += 2;

        if (from_bcd_be(chanbuf + chan_len++, 2) != 0)
        {
            chan->levels[rig_setting2idx(RIG_LEVEL_ATT)].i = 20;
        }

        if (from_bcd_be(chanbuf + chan_len++, 2) != 0)
        {
            chan->levels[rig_setting2idx(RIG_LEVEL_PREAMP)].i = 20;
        }

        chan->ant = from_bcd_be(chanbuf + chan_len++, 2);
        strncpy(chan->channel_desc, (char *)(chanbuf + chan_len), 8);
    }

    if (!read_only)
    {
        // Set rig to channel values
        rig_debug(RIG_DEBUG_ERR,
                  "%s: please contact hamlib mailing list to implement this\n", __func__);
        rig_debug(RIG_DEBUG_ERR,
                  "%s: need to know if rig updates when channel read or not\n", __func__);
        return -RIG_ENIMPL;
    }

    return RIG_OK;
}

int icr75_set_parm(RIG *rig, setting_t parm, value_t val)
{
    unsigned char prmbuf[MAXFRAMELEN];
    int min, hr, sec;

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

    switch (parm)
    {
    case RIG_PARM_ANN:
    {
        int ann_mode = -1;
        int ann_lang = -1;

        switch (val.i)
        {
        case RIG_ANN_OFF:
            ann_mode = S_ANN_ALL;
            break;

        case RIG_ANN_FREQ:
            ann_mode = S_ANN_FREQ;
            break;

        case RIG_ANN_RXMODE:
            ann_mode = S_ANN_MODE;
            break;

        case RIG_ANN_ENG:
        case RIG_ANN_JAP:
            ann_lang = (val.i == RIG_ANN_ENG) ? 0 : 1;
            break;

        default:
            rig_debug(RIG_DEBUG_ERR, "Unsupported RIG_PARM_ANN %d\n", val.i);
            return -RIG_EINVAL;
        }

        if (ann_mode >= 0)
        {
            return icom_set_raw(rig, C_CTL_ANN, ann_mode, 0, NULL, 0, 0);
        }
        else if (ann_lang >= 0)
        {
            prmbuf[0] = S_PRM_LANG;
            prmbuf[1] = ann_lang;
            return icom_set_raw(rig, C_CTL_MEM, S_MEM_MODE_SLCT, 2, prmbuf, 0, 0);
        }

        rig_debug(RIG_DEBUG_ERR, "Unsupported RIG_PARM_ANN %d\n", val.i);
        return -RIG_EINVAL;
    }

    case RIG_PARM_APO:
        prmbuf[0] = S_PRM_SLPTM;
        hr = (int)((float) val.i / 60.0f);
        min = val.i - (hr * 60);
        to_bcd_be(prmbuf + 1, (long long) hr, 2);
        to_bcd_be(prmbuf + 2, (long long) min, 2);
        return icom_set_raw(rig, C_CTL_MEM, S_MEM_MODE_SLCT, 3, prmbuf, 0, 0);

    case RIG_PARM_BACKLIGHT:
        prmbuf[0] = S_PRM_BACKLT;
        to_bcd_be(prmbuf + 1, (long long)(val.f * 255.0f), 2 * 2);
        return icom_set_raw(rig, C_CTL_MEM, S_MEM_MODE_SLCT, 3, prmbuf, 0, 0);

    case RIG_PARM_BEEP:
        prmbuf[0] = S_PRM_BEEP;
        prmbuf[1] = val.i ? 1 : 0;
        return icom_set_raw(rig, C_CTL_MEM, S_MEM_MODE_SLCT, 2, prmbuf, 0, 0);

    case RIG_PARM_TIME:
        hr = (int)((float) val.i / 3600.0);
        min = (int)((float)(val.i - (hr * 3600)) / 60.0);
        sec = (val.i - (hr * 3600) - (min * 60));

        prmbuf[0] = S_PRM_TIME;
        to_bcd_be(prmbuf + 1, (long long) hr, 2);
        to_bcd_be(prmbuf + 2, (long long) min, 2);
        to_bcd_be(prmbuf + 3, (long long) sec, 2);
        return icom_set_raw(rig, C_CTL_MEM, S_MEM_MODE_SLCT, 4, prmbuf, 0, 0);

    default:
        rig_debug(RIG_DEBUG_ERR, "Unsupported set_parm %s\n", rig_strparm(parm));
        return -RIG_EINVAL;
    }
}

int icr75_get_parm(RIG *rig, setting_t parm, value_t *val)
{
    unsigned char prmbuf[MAXFRAMELEN], resbuf[MAXFRAMELEN];
    int prm_len, res_len;
    int prm_cn, prm_sc;
    int icom_val = 0;
    int cmdhead;
    int retval;
    int min, hr, sec;

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

    switch (parm)
    {
    case RIG_PARM_APO:
        prm_cn = C_CTL_MEM;
        prm_sc = S_MEM_MODE_SLCT;
        prm_len = 1;
        prmbuf[0] = S_PRM_SLPTM;
        break;

    case RIG_PARM_BACKLIGHT:
        prm_cn = C_CTL_MEM;
        prm_sc = S_MEM_MODE_SLCT;
        prm_len = 1;
        prmbuf[0] = S_PRM_BACKLT;
        break;

    case RIG_PARM_BEEP:
        prm_cn = C_CTL_MEM;
        prm_sc = S_MEM_MODE_SLCT;
        prm_len = 1;
        prmbuf[0] = S_PRM_BEEP;
        break;

    case RIG_PARM_TIME:
        prm_cn = C_CTL_MEM;
        prm_sc = S_MEM_MODE_SLCT;
        prm_len = 1;
        prmbuf[0] = S_PRM_TIME;
        break;

    default:
        rig_debug(RIG_DEBUG_ERR, "Unsupported get_parm %s", rig_strparm(parm));
        return -RIG_EINVAL;
    }

    retval = icom_transaction(rig, prm_cn, prm_sc, prmbuf, prm_len, resbuf,
                              &res_len);

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

    cmdhead = 3;
    res_len -= cmdhead;

    if (resbuf[0] != ACK && resbuf[0] != prm_cn)
    {
        rig_debug(RIG_DEBUG_ERR, "%s: ack NG (%#.2x), len=%d\n", __func__, resbuf[0],
                  res_len);
        return -RIG_ERJCTED;
    }

    switch (parm)
    {
    case RIG_PARM_APO:
        hr = from_bcd_be(resbuf + cmdhead, 2);
        min = from_bcd_be(resbuf + cmdhead + 1, 2);
        icom_val = (hr * 60) + min;
        val->i = icom_val;
        break;

    case RIG_PARM_TIME:
        hr = from_bcd_be(resbuf + cmdhead, 2);
        min = from_bcd_be(resbuf + cmdhead + 1, 2);
        sec = from_bcd_be(resbuf + cmdhead + 2, 2);
        icom_val = (hr * 3600) + (min * 60) + sec;
        val->i = icom_val;
        break;

    case RIG_PARM_BACKLIGHT:
        icom_val = from_bcd_be(resbuf + cmdhead, res_len * 2);
        val->f = (float) icom_val / 255.0;
        break;

    case RIG_PARM_BEEP:
        icom_val = from_bcd_be(resbuf + cmdhead, res_len * 2);
        val->i = icom_val;
        break;
    }

    rig_debug(RIG_DEBUG_TRACE, "%s: %d %d %d %f\n", __func__, res_len, icom_val,
              val->i, val->f);

    return RIG_OK;
}