#
# Copyright 2012 Filippi Marco <iz3gme.marco@gmail.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

"""FT857 - FT857/US management module"""

from chirp.drivers import ft817
from chirp import chirp_common, errors, directory
from chirp.settings import RadioSetting, RadioSettingGroup, \
    RadioSettingValueInteger, RadioSettingValueList, \
    RadioSettingValueBoolean, RadioSettingValueString, \
    RadioSettings
import logging
from chirp.util import safe_charset_string

LOG = logging.getLogger(__name__)


@directory.register
class FT857Radio(ft817.FT817Radio):
    """Yaesu FT-857/897"""
    MODEL = "FT-857/897"
    _model = ""

    TMODES: dict[int, str] = {
        0x04: "Tone",
        0x05: "TSQL",
        # 0x08 : "DTCS Enc", not supported in UI yet
        0x0a: "DTCS",
        0xff: "Cross",
        0x00: "",
    }
    TMODES_REV = dict(list(zip(list(TMODES.values()), list(TMODES.keys()))))

    CROSS_MODES = {
        0x01: "->Tone",
        0x02: "->DTCS",
        0x04: "Tone->",
        0x05: "Tone->Tone",
        0x06: "Tone->DTCS",
        0x08: "DTCS->",
        0x09: "DTCS->Tone",
        0x0a: "DTCS->DTCS",
    }
    CROSS_MODES_REV = dict(list(zip(list(CROSS_MODES.values()),
                                    list(CROSS_MODES.keys()))))

    _memsize = 7341
    # block 9 (140 Bytes long) is to be repeated 40 times
    # should be 42 times but this way I can use original 817 functions
    _block_lengths = [2, 82, 252, 196, 252, 196, 212, 55, 140, 140, 140,
                      38, 176]
    # warning ranges has to be in this exact order
    VALID_BANDS = [(100000, 33000000), (33000000, 56000000),
                   (76000000, 108000000), (108000000, 137000000),
                   (137000000, 164000000), (420000000, 470000000)]

    CHARSET = list(chirp_common.CHARSET_ASCII)
    for i in "\\{|}":
        CHARSET.remove(i)

    MEM_FORMAT = """
        struct mem_struct{
        u8   tag_on_off:1,
            tag_default:1,
            unknown1:3,
            mode:3;
        u8   duplex:2,
            is_duplex:1,
            is_cwdig_narrow:1,
            is_fm_narrow:1,
            freq_range:3;
        u8   skip:1,
            unknokwn1_1:1,
            ipo:1,
            att:1,
            unknown2:4;
        u8   ssb_step:2,
            am_step:3,
            fm_step:3;
        u8   unknown3:3,
            is_split_tone:1,
            tmode:4;
        u8   unknown4:2,
            tx_mode:3,
            tx_freq_range:3;
        u8   unknown5:1,
            unknown_toneflag:1,
            tone:6;
        u8   unknown6:1,
            unknown_rxtoneflag:1,
            rxtone:6;
        u8   unknown7:1,
            dcs:7;
        u8   unknown8:1,
            rxdcs:7;
        ul16 rit;
        u32 freq;
        u32 offset;
        u8   name[8];
        };

        #seekto 0x00;
        struct {
            u16 radioconfig;
            u8  mem_vfo:2,
                m_tune:1,
                home:1,
                pms_tune:1,
                qmb:1,
                mt_qmb:1,
                vfo_ab:1;
            u8  unknown;
            u8  fst:1,
                lock:1,
                nb:1,
                unknown1:2,
                disp:1,
                agc:2;
            u8  vox:1,
                unknown2:1,
                bk:1,
                kyr:1,
                cw_speed_unit:1,
                cw_key_rev:1,
                pwr_meter_mode:2;
            u8  vfo_b_freq_range:4,
                vfo_a_freq_range:4;
            u8  unknown3;
            u8  disp_mode:2,
                unknown4:2,
                disp_contrast:4;
            u8  unknown5:4,
                clar_dial_sel:2,
                beep_tone:2;
            u8  arts_beep:2,
                dial_step:1,
                arts_id:1,
                unknown6:1,
                pkt_rate:1,
                unknown7:2;
            u8  unknown8:2,
                lock_mode:2,
                unknown9:1,
                cw_pitch:3;
            u8  sql_rf_gain:1,
                ars_144:1,
                ars_430:1,
                cw_weight:5;
            u8  cw_delay;
            u8  cw_delay_hi:1,
                cw_sidetone:7;
            u8  unknown10:2,
                cw_speed:6;
            u8  disable_amfm_dial:1,
                vox_gain:7;
            u8  cat_rate:2,
                emergency:1,
                vox_delay:5;
            u8  dig_mode:3,
                mem_group:1,
                unknown11:1,
                apo_time:3;
            u8  dcs_inv:2,
                unknown12:1,
                tot_time:5;
            u8  mic_scan:1,
                ssb_mic:7;
            u8  cw_paddle:1,
                am_mic:7;
            u8  unknown13:1,
                fm_mic:7;
            u8  unknown14:1,
                dig_mic:7;
            u8  extended_menu:1,
                pkt1200:7;
            u8  unknown15:1,
                pkt9600:7;
            i16 dig_shift;
            i16 dig_disp;
            i8  r_lsb_car;
            i8  r_usb_car;
            i8  t_lsb_car;
            i8  t_usb_car;
            u8  unknown16:1,
                menu_item:7;
            u8  unknown17[5];
            u8  unknown18:1,
                mtr_peak_hold:1,
                mic_sel:2,
                cat_lin_tun:2,
                unknown19:1,
                split_tone:1;
            u8  unknown20:1,
                beep_vol:7;
            u8  unknown21:1,
                dig_vox:7;
            u8  ext_menu:1,
                home_vfo:1,
                scan_mode:2,
                scan_resume:4;
            u8  cw_auto_mode:1,
                cw_training:2,
                cw_qsk:3,
                cw_bfo:2;
            u8  dsp_nr:4,
                dsp_bpf:2,
                dsp_mic_eq:2;
            u8  unknown22:3,
                dsp_lpf:5;
            u8  mtr_atx_sel:3,
                unknown23:1,
                dsp_hpf:4;
            u8  unknown24:2,
                disp_intensity:2,
                unknown25:1,
                disp_color:3;
            u8  unknown26:1,
                disp_color_vfo:1,
                disp_color_mtr:1,
                disp_color_mode:1,
                disp_color_memgrp:1,
                unknown27:1,
                disp_color_band:1,
                disp_color_arts:1;
            u8  unknown28:3,
                disp_color_fix:5;
            u8  unknown29:1,
                nb_level:7;
            u8  unknown30:1,
                proc_level:7;
            u8  unknown31:1,
                rf_power_hf:7;
            u8  unknown32:2,
                tuner_atas:3,
                mem_vfo_dial_mode:3;
            u8  pg_a;
            u8  pg_b;
            u8  pg_c;
            u8  pg_acc;
            u8  pg_p1;
            u8  pg_p2;
            u8  unknown33:3,
                xvtr_sel:2,
                unknown33_1:2,
                op_filter1:1;
            u8  unknown34:6,
                tx_if_filter:2;
            u8  unknown35:3,
                xvtr_a_negative:1,
                xvtr_b_negative:1,
                mtr_arx_sel:3;
            u8  beacon_time;
            u8  unknown36[2];
            u8  dig_vox_enable:1,
                unknown37:2,
                scope_peakhold:1,
                scope_width:2,
                proc:1,
                unknown38:1;
            u8  unknown39:1,
                rf_power_6m:7;
            u8  unknown40:1,
                rf_power_vhf:7;
            u8  unknown41:1,
                rf_power_uhf:7;
        } settings;

        #seekto 0x54;
        struct mem_struct vfoa[16];
        struct mem_struct vfob[16];
        struct mem_struct home[4];
        struct mem_struct qmb;
        struct mem_struct mtqmb;
        struct mem_struct mtune;

        #seekto 0x4a9;
        u8 visible[25];
        ul16 pmsvisible;

        #seekto 0x4c4;
        u8 filled[25];
        ul16 pmsfilled;

        #seekto 0x4df;
        struct mem_struct memory[200];
        struct mem_struct pms[10];

        #seekto 0x1bf3;
        u8 arts_idw[10];
        u8 beacon_text1[40];
        u8 beacon_text2[40];
        u8 beacon_text3[40];
        u32 xvtr_a_offset;
        u32 xvtr_b_offset;
        u8 op_filter1_name[4];
        u8 op_filter2_name[4];

        #seekto 0x1CAD;
        struct mem_struct sixtymeterchannels[5];

    """

    _CALLSIGN_CHARSET = [chr(x) for x in list(range(ord("0"), ord("9") + 1)) +
                         list(range(ord("A"), ord("Z") + 1))] + [" ", "/"]
    _CALLSIGN_CHARSET_REV = dict(list(zip(_CALLSIGN_CHARSET,
                                 list(range(0, len(_CALLSIGN_CHARSET))))))
    _BEACON_CHARSET = _CALLSIGN_CHARSET + ["+", "."]
    _BEACON_CHARSET_REV = dict(list(zip(_BEACON_CHARSET,
                               list(range(0, len(_BEACON_CHARSET))))))

    # WARNING Index are hard wired in memory management code !!!
    SPECIAL_MEMORIES = {
        "VFOa-1.8M": -37,
        "VFOa-3.5M": -36,
        "VFOa-5M": -35,
        "VFOa-7M": -34,
        "VFOa-10M": -33,
        "VFOa-14M": -32,
        "VFOa-18M": -31,
        "VFOa-21M": -30,
        "VFOa-24M": -29,
        "VFOa-28M": -28,
        "VFOa-50M": -27,
        "VFOa-FM": -26,
        "VFOa-AIR": -25,
        "VFOa-144": -24,
        "VFOa-430": -23,
        "VFOa-HF": -22,
        "VFOb-1.8M": -21,
        "VFOb-3.5M": -20,
        "VFOb-5M": -19,
        "VFOb-7M": -18,
        "VFOb-10M": -17,
        "VFOb-14M": -16,
        "VFOb-18M": -15,
        "VFOb-21M": -14,
        "VFOb-24M": -13,
        "VFOb-28M": -12,
        "VFOb-50M": -11,
        "VFOb-FM": -10,
        "VFOb-AIR": -9,
        "VFOb-144M": -8,
        "VFOb-430M": -7,
        "VFOb-HF": -6,
        "HOME HF": -5,
        "HOME 50M": -4,
        "HOME 144M": -3,
        "HOME 430M": -2,
        "QMB": -1,
    }
    FIRST_VFOB_INDEX = -6
    LAST_VFOB_INDEX = -21
    FIRST_VFOA_INDEX = -22
    LAST_VFOA_INDEX = -37

    SPECIAL_PMS = {
        "PMS-1L": -47,
        "PMS-1U": -46,
        "PMS-2L": -45,
        "PMS-2U": -44,
        "PMS-3L": -43,
        "PMS-3U": -42,
        "PMS-4L": -41,
        "PMS-4U": -40,
        "PMS-5L": -39,
        "PMS-5U": -38,
    }
    LAST_PMS_INDEX = -47

    SPECIAL_MEMORIES.update(SPECIAL_PMS)

    SPECIAL_MEMORIES_REV = dict(list(zip(list(SPECIAL_MEMORIES.values()),
                                         list(SPECIAL_MEMORIES.keys()))))

    FILTERS = ["CFIL", "FIL1", "FIL2"]
    PROGRAMMABLEOPTIONS = [
        "MFa:A/B",              "MFa:A=B",          "MFa:SPL",
        "MFb:MW",               "MFb:SKIP/MCLR",    "MFb:TAG",
        "MFc:STO",              "MFc:RCL",          "MFc:PROC",
        "MFd:RPT",              "MFd:REV",          "MFd:VOX",
        "MFe:TON/ENC",          "MFe:TON/DEC",      "MFe:TDCH",
        "MFf:ARTS",             "MFf:SRCH",         "MFf:PMS",
        "MFg:SCN",              "MFg:PRI",          "MFg:DW",
        "MFh:SCOP",             "MFh:WID",          "MFh:STEP",
        "MFi:MTR",              "MFi:SWR",          "MFi:DISP",
        "MFj:SPOT",             "MFj:BK",           "MFj:KYR",
        "MFk:TUNE",             "MFk:DOWN",         "MFk:UP",
        "MFl:NB",               "MFl:AGC",          "MFl:AGC SEL",
        "MFm:IPO",              "MFm:ATT",          "MFm:NAR",
        "MFn:CFIL",             "MFn:FIL1",         "MFn:FIL2",
        "MFo:PLY1",             "MFo:PLY2",         "MFo:PLY3",
        "MFp:DNR",              "MFp:DNF",          "MFp:DBF",
        "01:EXT MENU",          "02:144MHz ARS",    "03:430MHz ARS",
        "04:AM&FM DIAL",        "05:AM MIC GAIN",   "06:AM STEP",
        "07:APO TIME",          "08:ARTS BEEP",     "09:ARTS ID",
        "10:ARTS IDW",          "11:BEACON TEXT",   "12:BEACON TIME",
        "13:BEEP TONE",         "14:BEEP VOL",      "15:CAR LSB R",
        "16:CAR LSB T",         "17:CAR USB R",     "18:CAR USB T",
        "19:CAT RATE",          "20:CAT/LIN/TUN",   "21:CLAR DIAL SEL",
        "22:CW AUTO MODE",      "23:CW BFO",        "24:CW DELAY",
        "25:CW KEY REV",        "26:CW PADDLE",     "27:CW PITCH",
        "28:CW QSK",            "29:CW SIDE TONE",  "30:CW SPEED",
        "31:CW TRAINING",       "32:CW WEIGHT",     "33:DCS CODE",
        "34:DCS INV",           "35:DIAL STEP",     "36:DIG DISP",
        "37:DIG GAIN",          "38:DIG MODE",      "39:DIG SHIFT",
        "40:DIG VOX",           "41:DISP COLOR",    "42:DISP CONTRAST",
        "43:DISP INTENSITY",    "44:DISP MODE",     "45:DSP BPF WIDTH",
        "46:DSP HPF CUTOFF",    "47:DSP LPF CUTOFF", "48:DSP MIC EQ",
        "49:DSP NR LEVEL",      "50:EMERGENCY",     "51:FM MIC GAIN",
        "52:FM STEP",           "53:HOME->VFO",     "54:LOCK MODE",
        "55:MEM GROUP",         "56:MEM TAG",       "57:MEM/VFO DIAL MODE",
        "58:MIC SCAN",          "59:MIC SEL",       "60:MTR ARX",
        "61:MTR ATX",           "62:MTR PEAK HOLD", "63:NB LEVEL",
        "64:OP FILTER",         "71:PKT 1200",      "72:PKT 9600",
        "73:PKT RATE",          "74:PROC LEVEL",    "75:RF POWER SET",
        "76:RPT SHIFT",         "77:SCAN MODE",     "78:SCAN RESUME",
        "79:SPLIT TONE",        "80:SQL/RF GAIN",   "81:SSB MIC GAIN",
        "82:SSB STEP",          "83:TONE FREQ",     "84:TX TIME",
        "85:TUNER/ATAS",        "86:TX IF FILTER",  "87:VOX DELAY",
        "88:VOX GAIN",          "89:XVTR A FREQ",   "90:XVTR B FREQ",
        "91:XVTR SEL",
        "MONI", "Q.SPL", "TCALL", "ATC", "USER"]

    @classmethod
    def get_prompts(cls):
        rp = chirp_common.RadioPrompts()
        rp.pre_download = _(
            "1. Turn radio off.\n"
            "2. Connect cable to CAT/LINEAR jack.\n"
            "3. Press and hold in the [MODE &lt;] and [MODE &gt;] keys"
            " while\n"
            "     turning the radio on (\"CLONE MODE\" will appear on the\n"
            "     display).\n"
            "4. <b>After clicking OK</b>,\n"
            "     press the [C](SEND) key to send image.\n")
        rp.pre_upload = _(
            "1. Turn radio off.\n"
            "2. Connect cable to ACC jack.\n"
            "3. Press and hold in the [MODE &lt;] and [MODE &gt;] keys"
            " while\n"
            "     turning the radio on (\"CLONE MODE\" will appear on the\n"
            "     display).\n"
            "4. Press the [A](RCV) key (\"receiving\" will appear on the"
            " LCD).\n")
        return rp

    def get_features(self):
        rf = ft817.FT817Radio.get_features(self)
        rf.has_cross = True
        rf.has_ctone = True
        rf.has_rx_dtcs = True
        rf.valid_tmodes = list(self.TMODES_REV.keys())
        rf.valid_cross_modes = list(self.CROSS_MODES_REV.keys())
        return rf

    def _get_duplex(self, mem, _mem):
        # radio set is_duplex only for + and - but not for split
        # at the same time it does not complain if we set it same way 817 does
        # (so no set_duplex here)
        mem.duplex = self.DUPLEX[_mem.duplex]

    def _get_tmode(self, mem, _mem):
        if not _mem.is_split_tone:
            mem.tmode = self.TMODES[int(_mem.tmode)]
        else:
            mem.tmode = "Cross"
            mem.cross_mode = self.CROSS_MODES[int(_mem.tmode)]

        if mem.tmode == "Tone":
            mem.rtone = mem.ctone = chirp_common.TONES[_mem.tone]
        elif mem.tmode == "TSQL":
            mem.rtone = mem.ctone = chirp_common.TONES[_mem.tone]
        elif mem.tmode == "DTCS Enc":   # UI does not support it yet but
            # this code has already been tested
            mem.dtcs = mem.rx_dtcs = chirp_common.DTCS_CODES[_mem.dcs]
        elif mem.tmode == "DTCS":
            mem.dtcs = mem.rx_dtcs = chirp_common.DTCS_CODES[_mem.dcs]
        elif mem.tmode == "Cross":
            mem.ctone = chirp_common.TONES[_mem.rxtone]
            # don't want to fail for this
            try:
                mem.rtone = chirp_common.TONES[_mem.tone]
            except IndexError:
                mem.rtone = chirp_common.TONES[0]
            mem.dtcs = chirp_common.DTCS_CODES[_mem.dcs]
            mem.rx_dtcs = chirp_common.DTCS_CODES[_mem.rxdcs]

    def _set_tmode(self, mem, _mem):
        if mem.tmode != "Cross":
            _mem.is_split_tone = 0
            _mem.tmode = self.TMODES_REV[mem.tmode]
        else:
            _mem.tmode = self.CROSS_MODES_REV[mem.cross_mode]
            _mem.is_split_tone = 1

        if mem.tmode == "Tone":
            _mem.tone = _mem.rxtone = chirp_common.TONES.index(mem.rtone)
        elif mem.tmode == "TSQL":
            _mem.tone = _mem.rxtone = chirp_common.TONES.index(mem.ctone)
        elif mem.tmode == "DTCS Enc":   # UI does not support it yet but
            # this code has already been tested
            _mem.dcs = _mem.rxdcs = chirp_common.DTCS_CODES.index(mem.dtcs)
        elif mem.tmode == "DTCS":
            _mem.dcs = _mem.rxdcs = chirp_common.DTCS_CODES.index(mem.dtcs)
        elif mem.tmode == "Cross":
            _mem.tone = chirp_common.TONES.index(mem.rtone)
            _mem.rxtone = chirp_common.TONES.index(mem.ctone)
            _mem.dcs = chirp_common.DTCS_CODES.index(mem.dtcs)
            _mem.rxdcs = chirp_common.DTCS_CODES.index(mem.rx_dtcs)
        # have to put this bit to 0 otherwise we get strange display in tone
        # frequency (menu 83). See bug #88 and #163
        _mem.unknown_toneflag = 0
        # dunno if there's the same problem here but to be safe ...
        _mem.unknown_rxtoneflag = 0

    def get_settings(self):
        _settings = self._memobj.settings
        basic = RadioSettingGroup("basic", "Basic")
        cw = RadioSettingGroup("cw", "CW")
        packet = RadioSettingGroup("packet", "Digital & packet")
        panel = RadioSettingGroup("panel", "Panel settings")
        extended = RadioSettingGroup("extended", "Extended")
        panelcontr = RadioSettingGroup("panelcontr", "Panel controls")

        top = RadioSettings(basic, cw, packet,
                            panelcontr, panel, extended)

        rs = RadioSetting("extended_menu", "Extended menu",
                          RadioSettingValueBoolean(_settings.extended_menu))
        extended.append(rs)
        rs = RadioSetting("ars_144", "144 MHz ARS",
                          RadioSettingValueBoolean(_settings.ars_144))
        basic.append(rs)
        rs = RadioSetting("ars_430", "430 MHz ARS",
                          RadioSettingValueBoolean(_settings.ars_430))
        basic.append(rs)
        options = ["enable", "disable"]
        rs = RadioSetting(
            "disable_amfm_dial", "AM&FM Dial",
            RadioSettingValueList(
                options, current_index=_settings.disable_amfm_dial))
        panel.append(rs)
        rs = RadioSetting("am_mic", "AM mic gain",
                          RadioSettingValueInteger(0, 100, _settings.am_mic))
        basic.append(rs)
        options = ["OFF", "1h", "2h", "3h", "4h", "5h", "6h"]
        rs = RadioSetting(
            "apo_time", "APO time",
            RadioSettingValueList(
                options, current_index=_settings.apo_time))
        basic.append(rs)
        options = ["OFF", "Range", "All"]
        rs = RadioSetting(
            "arts_beep", "ARTS beep",
            RadioSettingValueList(
                options, current_index=_settings.arts_beep))
        basic.append(rs)
        rs = RadioSetting("arts_id", "ARTS ID",
                          RadioSettingValueBoolean(_settings.arts_id))
        extended.append(rs)
        st = RadioSettingValueString(0, 10,
                                     safe_charset_string(
                                         self._memobj.arts_idw,
                                         self._CALLSIGN_CHARSET)
                                     )
        st.set_charset(self._CALLSIGN_CHARSET)
        rs = RadioSetting("arts_idw", "ARTS IDW", st)
        extended.append(rs)
        st = RadioSettingValueString(0, 40,
                                     safe_charset_string(
                                         self._memobj.beacon_text1,
                                         self._BEACON_CHARSET)
                                     )
        st.set_charset(self._BEACON_CHARSET)
        rs = RadioSetting("beacon_text1", "Beacon text1", st)
        extended.append(rs)
        st = RadioSettingValueString(0, 40,
                                     safe_charset_string(
                                         self._memobj.beacon_text2,
                                         self._BEACON_CHARSET)
                                     )
        st.set_charset(self._BEACON_CHARSET)
        rs = RadioSetting("beacon_text2", "Beacon text2", st)
        extended.append(rs)
        st = RadioSettingValueString(0, 40,
                                     safe_charset_string(
                                         self._memobj.beacon_text3,
                                         self._BEACON_CHARSET)
                                     )
        st.set_charset(self._BEACON_CHARSET)
        rs = RadioSetting("beacon_text3", "Beacon text3", st)
        extended.append(rs)
        options = ["OFF"] + ["%i sec" % i for i in range(1, 256)]
        rs = RadioSetting(
            "beacon_time", "Beacon time",
            RadioSettingValueList(
                options, current_index=_settings.beacon_time))
        extended.append(rs)
        options = ["440 Hz", "880 Hz", "1760 Hz"]
        rs = RadioSetting(
            "beep_tone", "Beep tone",
            RadioSettingValueList(
                options, current_index=_settings.beep_tone))
        panel.append(rs)
        rs = RadioSetting("beep_vol", "Beep volume",
                          RadioSettingValueInteger(0, 100, _settings.beep_vol))
        panel.append(rs)
        rs = RadioSetting("r_lsb_car", "LSB Rx carrier point (*10 Hz)",
                          RadioSettingValueInteger(-30, 30,
                                                   _settings.r_lsb_car))
        extended.append(rs)
        rs = RadioSetting("r_usb_car", "USB Rx carrier point (*10 Hz)",
                          RadioSettingValueInteger(-30, 30,
                                                   _settings.r_usb_car))
        extended.append(rs)
        rs = RadioSetting("t_lsb_car", "LSB Tx carrier point (*10 Hz)",
                          RadioSettingValueInteger(-30, 30,
                                                   _settings.t_lsb_car))
        extended.append(rs)
        rs = RadioSetting("t_usb_car", "USB Tx carrier point (*10 Hz)",
                          RadioSettingValueInteger(-30, 30,
                                                   _settings.t_usb_car))
        extended.append(rs)
        options = ["4800", "9600", "38400"]
        rs = RadioSetting(
            "cat_rate", "CAT rate",
            RadioSettingValueList(
                options, current_index=_settings.cat_rate))
        basic.append(rs)
        options = ["CAT", "Linear", "Tuner"]
        rs = RadioSetting(
            "cat_lin_tun", "CAT/LIN/TUN selection",
            RadioSettingValueList(
                options, current_index=_settings.cat_lin_tun))
        extended.append(rs)
        options = ["MAIN", "VFO/MEM", "CLAR"]
        # TODO test the 3 options on non D radio
        # which have only SEL and MAIN
        rs = RadioSetting(
            "clar_dial_sel", "Clarifier dial selection",
            RadioSettingValueList(
                options, current_index=_settings.clar_dial_sel))
        panel.append(rs)
        rs = RadioSetting("cw_auto_mode", "CW Automatic mode",
                          RadioSettingValueBoolean(_settings.cw_auto_mode))
        cw.append(rs)
        options = ["USB", "LSB", "AUTO"]
        rs = RadioSetting("cw_bfo", "CW BFO", RadioSettingValueList(
            options, current_index=_settings.cw_bfo))
        cw.append(rs)
        options = ["FULL"] + ["%i ms" % (i * 10) for i in range(3, 301)]
        val = (_settings.cw_delay + _settings.cw_delay_hi * 256) - 2
        rs = RadioSetting("cw_delay", "CW delay",
                          RadioSettingValueList(options, current_index=val))
        cw.append(rs)
        options = ["Normal", "Reverse"]
        rs = RadioSetting(
            "cw_key_rev", "CW key reverse",
            RadioSettingValueList(
                options, current_index=_settings.cw_key_rev))
        cw.append(rs)
        rs = RadioSetting("cw_paddle", "CW paddle",
                          RadioSettingValueBoolean(_settings.cw_paddle))
        cw.append(rs)
        options = ["%i Hz" % i for i in range(400, 801, 100)]
        rs = RadioSetting(
            "cw_pitch", "CW pitch",
            RadioSettingValueList(
                options, current_index=_settings.cw_pitch))
        cw.append(rs)
        options = ["%i ms" % i for i in range(5, 31, 5)]
        rs = RadioSetting("cw_qsk", "CW QSK", RadioSettingValueList(
            options, current_index=_settings.cw_qsk))
        cw.append(rs)
        rs = RadioSetting("cw_sidetone", "CW sidetone volume",
                          RadioSettingValueInteger(0, 100,
                                                   _settings.cw_sidetone))
        cw.append(rs)
        options = ["%i wpm" % i for i in range(4, 61)]
        rs = RadioSetting(
            "cw_speed", "CW speed",
            RadioSettingValueList(
                options, current_index=_settings.cw_speed))
        cw.append(rs)
        options = ["Numeric", "Alphabet", "AlphaNumeric"]
        rs = RadioSetting(
            "cw_training", "CW training",
            RadioSettingValueList(
                options, current_index=_settings.cw_training))
        cw.append(rs)
        options = ["1:%1.1f" % (i / 10) for i in range(25, 46, 1)]
        rs = RadioSetting(
            "cw_weight", "CW weight",
            RadioSettingValueList(
                options, current_index=_settings.cw_weight))
        cw.append(rs)
        options = ["Tn-Rn", "Tn-Riv", "Tiv-Rn", "Tiv-Riv"]
        rs = RadioSetting("dcs_inv", "DCS inv", RadioSettingValueList(
            options, current_index=_settings.dcs_inv))
        extended.append(rs)
        options = ["Fine", "Coarse"]
        rs = RadioSetting(
            "dial_step", "Dial step",
            RadioSettingValueList(
                options, current_index=_settings.dial_step))
        panel.append(rs)
        rs = RadioSetting("dig_disp", "Dig disp (*10 Hz)",
                          RadioSettingValueInteger(-300, 300,
                                                   _settings.dig_disp))
        packet.append(rs)
        rs = RadioSetting("dig_mic", "Dig gain",
                          RadioSettingValueInteger(0, 100,
                                                   _settings.dig_mic))
        packet.append(rs)
        options = ["RTTYL", "RTTYU", "PSK31-L", "PSK31-U", "USER-L", "USER-U"]
        rs = RadioSetting(
            "dig_mode", "Dig mode",
            RadioSettingValueList(
                options, current_index=_settings.dig_mode))
        packet.append(rs)
        rs = RadioSetting("dig_shift", "Dig shift (*10 Hz)",
                          RadioSettingValueInteger(-300, 300,
                                                   _settings.dig_shift))
        packet.append(rs)
        rs = RadioSetting("dig_vox", "Dig vox",
                          RadioSettingValueInteger(0, 100, _settings.dig_vox))
        packet.append(rs)
        options = ["ARTS", "BAND", "FIX", "MEMGRP", "MODE", "MTR", "VFO"]
        rs = RadioSetting(
            "disp_color", "Display color mode",
            RadioSettingValueList(
                options, current_index=_settings.disp_color))
        panel.append(rs)
        rs = RadioSetting("disp_color_arts", "Display color ARTS set",
                          RadioSettingValueInteger(0, 1,
                                                   _settings.disp_color_arts))
        panel.append(rs)
        rs = RadioSetting("disp_color_band", "Display color band set",
                          RadioSettingValueInteger(0, 1,
                                                   _settings.disp_color_band))
        panel.append(rs)
        rs = RadioSetting("disp_color_memgrp",
                          "Display color memory group set",
                          RadioSettingValueInteger(0, 1,
                                                   _settings.disp_color_memgrp)
                          )
        panel.append(rs)
        rs = RadioSetting("disp_color_mode", "Display color mode set",
                          RadioSettingValueInteger(0, 1,
                                                   _settings.disp_color_mode))
        panel.append(rs)
        rs = RadioSetting("disp_color_mtr", "Display color meter set",
                          RadioSettingValueInteger(0, 1,
                                                   _settings.disp_color_mtr))
        panel.append(rs)
        rs = RadioSetting("disp_color_vfo", "Display color VFO set",
                          RadioSettingValueInteger(0, 1,
                                                   _settings.disp_color_vfo))
        panel.append(rs)
        rs = RadioSetting("disp_color_fix", "Display color fix set",
                          RadioSettingValueInteger(1, 32,
                                                   _settings.disp_color_fix + 1
                                                   ))
        panel.append(rs)
        rs = RadioSetting("disp_contrast", "Contrast",
                          RadioSettingValueInteger(3, 15,
                                                   _settings.disp_contrast + 2)
                          )
        panel.append(rs)
        rs = RadioSetting("disp_intensity", "Intensity",
                          RadioSettingValueInteger(1, 3,
                                                   _settings.disp_intensity))
        panel.append(rs)
        options = ["OFF", "Auto1", "Auto2", "ON"]
        rs = RadioSetting(
            "disp_mode", "Display backlight mode",
            RadioSettingValueList(
                options, current_index=_settings.disp_mode))
        panel.append(rs)
        options = ["60 Hz", "120 Hz", "240 Hz"]
        rs = RadioSetting("dsp_bpf", "Dsp band pass filter",
                          RadioSettingValueList(
                              options, current_index=_settings.dsp_bpf))
        cw.append(rs)
        options = ["100 Hz", "160 Hz", "220 Hz", "280 Hz", "340 Hz", "400 Hz",
                   "460 Hz", "520 Hz", "580 Hz", "640 Hz", "720 Hz", "760 Hz",
                   "820 Hz", "880 Hz", "940 Hz", "1000 Hz"]
        rs = RadioSetting(
            "dsp_hpf", "Dsp hi pass filter cut off",
            RadioSettingValueList(options, current_index=_settings.dsp_hpf))
        basic.append(rs)
        options = ["1000 Hz", "1160 Hz", "1320 Hz", "1480 Hz", "1650 Hz",
                   "1800 Hz", "1970 Hz", "2130 Hz", "2290 Hz", "2450 Hz",
                   "2610 Hz", "2770 Hz", "2940 Hz", "3100 Hz", "3260 Hz",
                   "3420 Hz", "3580 Hz", "3740 Hz", "3900 Hz", "4060 Hz",
                   "4230 Hz", "4390 Hz", "4550 Hz", "4710 Hz", "4870 Hz",
                   "5030 Hz", "5190 Hz", "5390 Hz", "5520 Hz", "5680 Hz",
                   "5840 Hz", "6000 Hz"]
        rs = RadioSetting(
            "dsp_lpf", "Dsp low pass filter cut off",
            RadioSettingValueList(options, current_index=_settings.dsp_lpf))
        basic.append(rs)
        options = ["OFF", "LPF", "HPF", "BOTH"]
        rs = RadioSetting(
            "dsp_mic_eq", "Dsp mic equalization",
            RadioSettingValueList(
                options, current_index=_settings.dsp_mic_eq))
        basic.append(rs)
        rs = RadioSetting("dsp_nr", "DSP noise reduction level",
                          RadioSettingValueInteger(1, 16,
                                                   _settings.dsp_nr + 1))
        basic.append(rs)
        # emergency only for US model
        rs = RadioSetting("fm_mic", "FM mic gain",
                          RadioSettingValueInteger(0, 100, _settings.fm_mic))
        basic.append(rs)
        rs = RadioSetting("home_vfo", "Enable HOME to VFO moving",
                          RadioSettingValueBoolean(_settings.home_vfo))
        panel.append(rs)
        options = ["Dial", "Freq", "Panel", "All"]
        rs = RadioSetting(
            "lock_mode", "Lock mode",
            RadioSettingValueList(
                options, current_index=_settings.lock_mode))
        panel.append(rs)
        rs = RadioSetting("mem_group", "Mem group",
                          RadioSettingValueBoolean(_settings.mem_group))
        basic.append(rs)
        options = ["CW SIDETONE", "CW SPEED", "MHz/MEM GRP", "MIC GAIN",
                   "NB LEVEL", "RF POWER", "STEP"]
        rs = RadioSetting(
            "mem_vfo_dial_mode", "Mem/VFO dial mode",
            RadioSettingValueList(
                options, current_index=_settings.mem_vfo_dial_mode))
        panel.append(rs)
        rs = RadioSetting("mic_scan", "Mic scan",
                          RadioSettingValueBoolean(_settings.mic_scan))
        basic.append(rs)
        options = ["NOR", "RMT", "CAT"]
        rs = RadioSetting("mic_sel", "Mic selection",
                          RadioSettingValueList(
                              options, current_index=_settings.mic_sel))
        extended.append(rs)
        options = ["SIG", "CTR", "VLT", "N/A", "FS", "OFF"]
        rs = RadioSetting(
            "mtr_arx_sel", "Meter receive selection",
            RadioSettingValueList(
                options, current_index=_settings.mtr_arx_sel))
        extended.append(rs)
        options = ["PWR", "ALC", "MOD", "SWR", "VLT", "N/A", "OFF"]
        rs = RadioSetting(
            "mtr_atx_sel", "Meter transmit selection",
            RadioSettingValueList(
                options, current_index=_settings.mtr_atx_sel))
        extended.append(rs)
        rs = RadioSetting("mtr_peak_hold", "Meter peak hold",
                          RadioSettingValueBoolean(_settings.mtr_peak_hold))
        extended.append(rs)
        rs = RadioSetting("nb_level", "Noise blanking level",
                          RadioSettingValueInteger(0, 100, _settings.nb_level))
        basic.append(rs)
        st = RadioSettingValueString(0, 4,
                                     safe_charset_string(
                                         self._memobj.op_filter1_name,
                                         self._CALLSIGN_CHARSET)
                                     )
        st.set_charset(self._CALLSIGN_CHARSET)
        rs = RadioSetting("op_filter1_name", "Optional filter1 name", st)
        extended.append(rs)
        st = RadioSettingValueString(0, 4,
                                     safe_charset_string(
                                         self._memobj.op_filter2_name,
                                         self._CALLSIGN_CHARSET)
                                     )
        st.set_charset(self._CALLSIGN_CHARSET)
        rs = RadioSetting("op_filter2_name", "Optional filter2 name", st)
        extended.append(rs)
        rs = RadioSetting("pg_a", "Programmable key MFq:A",
                          RadioSettingValueList(self.PROGRAMMABLEOPTIONS,
                                                current_index=_settings.pg_a))
        extended.append(rs)
        rs = RadioSetting("pg_b", "Programmable key MFq:B",
                          RadioSettingValueList(self.PROGRAMMABLEOPTIONS,
                                                current_index=_settings.pg_b))
        extended.append(rs)
        rs = RadioSetting("pg_c", "Programmable key MFq:C",
                          RadioSettingValueList(self.PROGRAMMABLEOPTIONS,
                                                current_index=_settings.pg_c))
        extended.append(rs)
        rs = RadioSetting("pg_acc", "Programmable mic key ACC",
                          RadioSettingValueList(
                              self.PROGRAMMABLEOPTIONS,
                              current_index=_settings.pg_acc))
        extended.append(rs)
        rs = RadioSetting("pg_p1", "Programmable mic key P1",
                          RadioSettingValueList(self.PROGRAMMABLEOPTIONS,
                                                current_index=_settings.pg_p1))
        extended.append(rs)
        rs = RadioSetting("pg_p2", "Programmable mic key P2",
                          RadioSettingValueList(self.PROGRAMMABLEOPTIONS,
                                                current_index=_settings.pg_p2))
        extended.append(rs)
        rs = RadioSetting("pkt1200", "Packet 1200 gain level",
                          RadioSettingValueInteger(0, 100,
                                                   _settings.pkt1200))
        packet.append(rs)
        rs = RadioSetting("pkt9600", "Packet 9600 gain level",
                          RadioSettingValueInteger(0, 100, _settings.pkt9600))
        packet.append(rs)
        options = ["1200", "9600"]
        rs = RadioSetting(
            "pkt_rate", "Packet rate",
            RadioSettingValueList(
                options, current_index=_settings.pkt_rate))
        packet.append(rs)
        rs = RadioSetting("proc_level", "Proc level",
                          RadioSettingValueInteger(0, 100,
                                                   _settings.proc_level))
        basic.append(rs)
        rs = RadioSetting("rf_power_hf", "Rf power set HF",
                          RadioSettingValueInteger(5, 100,
                                                   _settings.rf_power_hf))
        basic.append(rs)
        rs = RadioSetting("rf_power_6m", "Rf power set 6m",
                          RadioSettingValueInteger(5, 100,
                                                   _settings.rf_power_6m))
        basic.append(rs)
        rs = RadioSetting("rf_power_vhf", "Rf power set VHF",
                          RadioSettingValueInteger(5, 50,
                                                   _settings.rf_power_vhf))
        basic.append(rs)
        rs = RadioSetting("rf_power_uhf", "Rf power set UHF",
                          RadioSettingValueInteger(2, 20,
                                                   _settings.rf_power_uhf))
        basic.append(rs)
        options = ["TIME", "BUSY", "STOP"]
        rs = RadioSetting(
            "scan_mode", "Scan mode",
            RadioSettingValueList(
                options, current_index=_settings.scan_mode))
        basic.append(rs)
        rs = RadioSetting("scan_resume", "Scan resume",
                          RadioSettingValueInteger(1, 10,
                                                   _settings.scan_resume))
        basic.append(rs)
        rs = RadioSetting("split_tone", "Split tone enable",
                          RadioSettingValueBoolean(_settings.split_tone))
        extended.append(rs)
        options = ["RF-Gain", "Squelch"]
        rs = RadioSetting(
            "sql_rf_gain", "Squelch/RF-Gain",
            RadioSettingValueList(
                options, current_index=_settings.sql_rf_gain))
        panel.append(rs)
        rs = RadioSetting("ssb_mic", "SSB Mic gain",
                          RadioSettingValueInteger(0, 100, _settings.ssb_mic))
        basic.append(rs)
        options = ["Off"] + ["%i" % i for i in range(1, 21)]
        rs = RadioSetting(
            "tot_time", "Time-out timer",
            RadioSettingValueList(
                options, current_index=_settings.tot_time))
        basic.append(rs)
        options = ["OFF", "ATAS(HF)", "ATAS(HF&50)", "ATAS(ALL)", "TUNER"]
        rs = RadioSetting(
            "tuner_atas", "Tuner/ATAS device",
            RadioSettingValueList(
                options, current_index=_settings.tuner_atas))
        extended.append(rs)
        rs = RadioSetting("tx_if_filter", "Transmit IF filter",
                          RadioSettingValueList(
                              self.FILTERS,
                              current_index=_settings.tx_if_filter))
        basic.append(rs)
        rs = RadioSetting("vox_delay", "VOX delay (*100 ms)",
                          RadioSettingValueInteger(1, 30, _settings.vox_delay))
        basic.append(rs)
        rs = RadioSetting("vox_gain", "VOX Gain",
                          RadioSettingValueInteger(1, 100, _settings.vox_gain))
        basic.append(rs)
        rs = RadioSetting("xvtr_a", "Xvtr A displacement",
                          RadioSettingValueInteger(
                              -4294967295, 4294967295,
                              self._memobj.xvtr_a_offset *
                              (-1 if _settings.xvtr_a_negative else 1)))

        extended.append(rs)
        rs = RadioSetting("xvtr_b", "Xvtr B displacement",
                          RadioSettingValueInteger(
                              -4294967295, 4294967295,
                              self._memobj.xvtr_b_offset *
                              (-1 if _settings.xvtr_b_negative else 1)))
        extended.append(rs)
        options = ["OFF", "XVTR A", "XVTR B"]
        rs = RadioSetting(
            "xvtr_sel", "Transverter function selection",
            RadioSettingValueList(
                options, current_index=_settings.xvtr_sel))
        extended.append(rs)

        rs = RadioSetting("disp", "Display large",
                          RadioSettingValueBoolean(_settings.disp))
        panel.append(rs)
        rs = RadioSetting("nb", "Noise blanker",
                          RadioSettingValueBoolean(_settings.nb))
        panelcontr.append(rs)
        options = ["Auto", "Fast", "Slow", "Off"]
        rs = RadioSetting("agc", "AGC",
                          RadioSettingValueList(options,
                                                current_index=_settings.agc))
        panelcontr.append(rs)
        options = ["PWR", "ALC", "SWR", "MOD"]
        rs = RadioSetting(
            "pwr_meter_mode", "Power meter mode",
            RadioSettingValueList(
                options, current_index=_settings.pwr_meter_mode))
        panelcontr.append(rs)
        rs = RadioSetting("vox", "Vox",
                          RadioSettingValueBoolean(_settings.vox))
        panelcontr.append(rs)
        rs = RadioSetting("bk", "Semi break-in",
                          RadioSettingValueBoolean(_settings.bk))
        cw.append(rs)
        rs = RadioSetting("kyr", "Keyer",
                          RadioSettingValueBoolean(_settings.kyr))
        cw.append(rs)
        options = ["enabled", "disabled"]
        rs = RadioSetting("fst", "Fast", RadioSettingValueList(
            options, current_index=_settings.fst))
        panelcontr.append(rs)
        options = ["enabled", "disabled"]
        rs = RadioSetting("lock", "Lock",
                          RadioSettingValueList(options,
                                                current_index=_settings.lock))
        panelcontr.append(rs)
        rs = RadioSetting("scope_peakhold", "Scope max hold",
                          RadioSettingValueBoolean(_settings.scope_peakhold))
        panelcontr.append(rs)
        options = ["21", "31", "127"]
        rs = RadioSetting(
            "scope_width", "Scope width (channels)",
            RadioSettingValueList(
                options, current_index=_settings.scope_width))
        panelcontr.append(rs)
        rs = RadioSetting("proc", "Speech processor",
                          RadioSettingValueBoolean(_settings.proc))
        panelcontr.append(rs)

        return top

    def set_settings(self, settings):
        _settings = self._memobj.settings
        for element in settings:
            if not isinstance(element, RadioSetting):
                self.set_settings(element)
                continue
            try:
                if "." in element.get_name():
                    bits = element.get_name().split(".")
                    obj = self._memobj
                    for bit in bits[:-1]:
                        obj = getattr(obj, bit)
                    setting = bits[-1]
                else:
                    obj = _settings
                    setting = element.get_name()
                try:
                    LOG.debug("Setting %s(%s) <= %s" % (setting,
                              getattr(obj, setting), element.value))
                except AttributeError:
                    LOG.debug("Setting %s <= %s" % (setting, element.value))
                if setting == "arts_idw":
                    self._memobj.arts_idw = \
                        [self._CALLSIGN_CHARSET_REV[x]
                         for x in str(element.value)]
                elif setting in ["beacon_text1", "beacon_text2",
                                 "beacon_text3", "op_filter1_name",
                                 "op_filter2_name"]:
                    setattr(self._memobj, setting,
                            [self._BEACON_CHARSET_REV[x]
                             for x in str(element.value)])
                elif setting == "cw_delay":
                    val = int(element.value) + 2
                    setattr(obj, "cw_delay_hi", val / 256)
                    setattr(obj, setting, val & 0xff)
                elif setting == "dig_vox":
                    val = int(element.value)
                    setattr(obj, "dig_vox_enable", int(val > 0))
                    setattr(obj, setting, val)
                elif setting in ["disp_color_fix", "dsp_nr"]:
                    setattr(obj, setting, int(element.value) - 1)
                elif setting == "disp_contrast":
                    setattr(obj, setting, int(element.value) - 2)
                elif setting in ["xvtr_a", "xvtr_b"]:
                    val = int(element.value)
                    setattr(obj, setting + "_negative", int(val < 0))
                    setattr(self._memobj, setting + "_offset", abs(val))
                else:
                    setattr(obj, setting, element.value)
            except Exception:
                LOG.debug(element.get_name())
                raise


@directory.register
class FT857USRadio(FT857Radio):
    """Yaesu FT857/897 (US version)"""
    # seems that radios configured for 5 MHz operations send one packet more
    # than others so we have to distinguish sub models
    MODEL = "FT-857/897 (US)"

    _model = ""
    _US_model = True
    _memsize = 7481
    # block 9 (140 Bytes long) is to be repeated 40 times
    # should be 42 times but this way I can use original 817 functions
    _block_lengths = [2, 82, 252, 196, 252, 196, 212, 55, 140, 140, 140, 38,
                      176, 140]

    SPECIAL_60M = {
        "M-601": -52,
        "M-602": -51,
        "M-603": -50,
        "M-604": -49,
        "M-605": -48,
        }
    LAST_SPECIAL60M_INDEX = -52

    SPECIAL_MEMORIES = dict(FT857Radio.SPECIAL_MEMORIES)
    SPECIAL_MEMORIES.update(SPECIAL_60M)

    SPECIAL_MEMORIES_REV = dict(list(zip(list(SPECIAL_MEMORIES.values()),
                                         list(SPECIAL_MEMORIES.keys()))))

    # this is identical to the one in FT817ND_US_Radio but we inherit from 857
    def _get_special_60m(self, number):
        mem = chirp_common.Memory()
        mem.number = self.SPECIAL_60M[number]
        mem.extd_number = number

        _mem = self._memobj.sixtymeterchannels[-self.LAST_SPECIAL60M_INDEX +
                                               mem.number]

        mem = self._get_memory(mem, _mem)

        mem.immutable = ["number", "rtone", "ctone",
                         "extd_number", "name", "dtcs", "tmode", "cross_mode",
                         "dtcs_polarity", "power", "duplex", "offset",
                         "empty"]

        return mem

    # this is identical to the one in FT817ND_US_Radio but we inherit from 857
    def _set_special_60m(self, mem):
        if mem.empty:
            # can't delete 60M memories!
            raise Exception("Sorry, 60M memory can't be deleted")

        cur_mem = self._get_special_60m(self.SPECIAL_MEMORIES_REV[mem.number])

        for key in cur_mem.immutable:
            if cur_mem.__dict__[key] != mem.__dict__[key]:
                raise errors.RadioError("Editing field `%s' " % key +
                                        "is not supported on M-60x channels")

        if mem.mode not in ["USB", "LSB", "CW", "CWR", "NCW", "NCWR", "DIG"]:
            raise errors.RadioError("Mode {mode} is not valid "
                                    "in 60m channels".format(mode=mem.mode))
        _mem = self._memobj.sixtymeterchannels[-self.LAST_SPECIAL60M_INDEX +
                                               mem.number]
        self._set_memory(mem, _mem)

    def get_memory(self, number):
        if number in self.SPECIAL_60M:
            return self._get_special_60m(number)
        elif isinstance(number, int) and number < 0 and (
                self.SPECIAL_MEMORIES_REV[number] in
                list(self.SPECIAL_60M.keys())):
            # I can't stop delete operation from losing extd_number but
            # I know how to get it back
            return self._get_special_60m(self.SPECIAL_MEMORIES_REV[number])
        else:
            return FT857Radio.get_memory(self, number)

    def set_memory(self, memory):
        if memory.number in list(self.SPECIAL_60M.values()):
            return self._set_special_60m(memory)
        else:
            return FT857Radio.set_memory(self, memory)

    def get_settings(self):
        top = FT857Radio.get_settings(self)
        basic = top[0]
        rs = RadioSetting("emergency", "Emergency",
                          RadioSettingValueBoolean(
                              self._memobj.settings.emergency))
        basic.append(rs)
        return top
