CHIRP

# melvin.terechenok@gmail.com

# modify for KG-UV980P

# Copyright 2019 Pavel Milanes CO7WT <pavelmc@gmail.com>

#

# Based on the work of Krystian Struzik <toner_82@tlen.pl>

# who figured out the crypt used and made possible the

# Wuoxun KG-UV8D Plus driver, in which this work is based.

#

# 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/>.

"""Wouxun KG-UV980P radio management module"""

from pickle import FALSE, TRUE

import time

import os

import logging

from chirp import util, chirp_common, bitwise, memmap, errors, directory

from chirp.settings import RadioSetting, RadioSettingGroup, \

    RadioSettingValueBoolean, RadioSettingValueList, \

    RadioSettingValueInteger, RadioSettingValueString, \

    RadioSettingValueFloat, RadioSettingValueMap, RadioSettings

LOG = logging.getLogger(__name__)

CMD_ID = 128    # \x80

CMD_END = 129   # \x81

CMD_RD = 130    # \x82

CMD_X1 = 131    # \x83

CMD_WR = 132    # \x84

CMD_X2 = 133    # \x85

MEM_VALID = 0x00

CHARSET_NUMERIC = "0123456789"

CHARSET = "0123456789" + \

          ":;<=>?@" + \

          "ABCDEFGHIJKLMNOPQRSTUVWXYZ" + \

          "[\]^_`" + \

          "abcdefghijklmnopqrstuvwxyz" + \

          "{|}~\x4E" + \

          " !\"#$%&'()*+,-./"

MUTE_MODE_MAP = [('QT',      0b01),

                 ('QT*DTMF', 0b10),

                 ('QT+DTMF', 0b11)]

STEPS = [2.5, 5.0, 6.25, 10.0, 12.5, 20.0, 25.0, 30.0, 50.0, 100.0]

STEP_LIST = [str(x) for x in STEPS]

SQL_LIST = [int(i) for i in range(0, 10)]

M_POWER_MAP = [('1 = 20W', 1),

               ('2 = 10W', 2)]

ROGER_LIST = ["Off", "BOT", "EOT", "Both"]

VOICE_LIST = ["Off", "Chinese", "English"]

SC_REV_MAP = [('Timeout (TO)',  1),

              ('Carrier (CO)',  2),

              ('Stop (SE)',     3)]

TOT_MAP = [('%d' % i, int('%02d' % i, 16)) for i in range(1, 61)]

TOA_MAP = [('Off', 0)] + \

          [('%d' % i, int('%02d' % i, 16)) for i in range(1, 11)]

RING_MAP = [('Off', 0)] + \

           [('%d' % i, int('%02d' % i, 16)) for i in range(1, 11)]

DTMF_ST_LIST = ["Off", "DT-ST", "ANI-ST", "DT+ANI"]

PTT_ID_LIST = ["BOT", "EOT", "Both"]

PTT_ID_MAP = [('BOT',  1),

              ('EOT',  2),

              ('Both', 3)]

BACKLIGHT_LIST = ["Off", "Red", "Orange", "Green"]

SPEAKER_MAP = [('SPK_1',   1),

               ('SPK_2',   2),

               ('SPK_1+2', 3)]

RPT_MODE_LIST = ["Radio", "X-DIRPT", "X-TWRPT", "RPT-RX", "T-W RPT"]

APO_TIME_LIST = ["Off", "30", "60", "90", "120", "150"]

ALERT_MAP = [('1750', 1),

             ('2100', 2),

             ('1000', 3),

             ('1450', 4)]

FAN_MODE_LIST = ["TX", "Hi-Temp/TX", "Always"]

SCAN_GROUP_LIST = ["All"] + ["%s" % x for x in range(1, 11)]

WORKMODE_MAP = [('VFO',             1),

                ('Ch. No.',         2),

                ('Ch. No.+Freq.',   3),

                ('Ch. No.+Name',    4)]

VFOBAND_MAP = [("150M",0),

               ("450M",1),

               ("20M",2),

               ("50M",3),

               ("350M",4),

               ("850M",5)]              

AB_LIST = ["A", "B"]

POWER_MAP = [('Low', 0),

             ('Med', 1),

             ('Med2', 2),

             ('High', 3)]

BANDWIDTH_MAP = [('Narrow', 1),

                 ('Wide',  0)]

SCRAMBLER_LIST = ["Off", "1", "2", "3", "4", "5", "6", "7", "8"]

ANS_LIST = ["Off", "Normal", "Strong"]

DTMF_TIMES = [str(x) for x in range(80, 501, 20)]

DTMF_INTERVALS = [str(x) for x in range(60, 501, 20)]

ROGER_TIMES = [str(x) for x in range(20, 1001, 20)]

PTT_ID_DELAY_MAP = [(str(x), x/100) for x in range(100, 1001, 100)]

ROGER_INTERVALS = ROGER_TIMES

TONE_MAP = [('Off', 0x0000)] + \

           [('%.1f' % tone, int(tone * 10)) for tone in chirp_common.TONES] + \

           [('DN%d' % tone, int(0x8000 + tone))

               for tone in chirp_common.DTCS_CODES] + \

           [('DI%d' % tone, int(0xC000 + tone))

               for tone in chirp_common.DTCS_CODES]

DUPLEX_LIST = ["Off", "Plus", "Minus"]

SC_QT_MAP = [("Decoder - Rx QT/DT MEM", 1), ("Encoder- Tx QT/DT MEM", 2),

             ("All- RxTx QT/DT MEM", 3)]

HOLD_TIMES = ["Off"] + ["%s" % x for x in range(100, 5001, 100)]

PF1_SETTINGS = ["Off", "Stun", "Kill", "Monitor", "Inspection"]

# memory slot 0 is not used, start at 1 (so need 1000 slots, not 999)

# structure elements whose name starts with x are currently unidentified

_MEM_FORMAT = """

    #seekto 0x004c;

    struct {

        u24      mode_psw;

    } mode;

    #seekto 0x0060;

    struct {

        u16    limit_144M_ChA_rx_start;

        u16    limit_144M_ChA_rx_stop;    

        u16    limit_70cm_rx_start;

        u16    limit_70cm_rx_stop;    

        u16    limit_10m_rx_start;

        u16    limit_10m_rx_stop;    

        u16    limit_6m_rx_start;

        u16    limit_6m_rx_stop;    

        u16    limit_350M_rx_start;

        u16    limit_350M_rx_stop;    

        u16    limit_850M_rx_start;

        u16    limit_850M_rx_stop;    

        u16    limit_144M_ChA_tx_start;

        u16    limit_144M_ChA_tx_stop;    

        u16    limit_70cm_tx_start;

        u16    limit_70cm_tx_stop;    

        u16    limit_10m_tx_start;

        u16    limit_10m_tx_stop;    

        u16    limit_6m_tx_start;

        u16    limit_6m_tx_stop;    

        u16    limit_144M_ChB_rx_start;

        u16    limit_144M_ChB_rx_stop;

    } bandlimits;

    #seekto 0x0740;

    struct {

        u16    FM_radio1;

        u16    FM_radio2;

        u16    FM_radio3;

        u16    FM_radio4;

        u16    FM_radio5;

        u16    FM_radio6;

        u16    FM_radio7;

        u16    FM_radio8;

        u16    FM_radio9;

        u16    FM_radio10;

        u16    FM_radio11;

        u16    FM_radio12;

        u16    FM_radio13;

        u16    FM_radio14;

        u16    FM_radio15;

        u16    FM_radio16;

        u16    FM_radio17;

        u16    FM_radio18;

        u16    FM_radio19;

        u16    FM_radio20;

        u16    FM_radio21;

        u16    FM_radio22;

        u8  x76c_pad[196];

        u32  vfofreq1;     // 0x0830

        u32  vfoofst1;

        u16  txtone1;

        u16  rxtone1;

        u8  xunk83C_1:3,

            mute1:2,

            xunk83C_2:3;

        u8  xunk83d_1:1,

            xunk83d_2:1,

            xunk83d_3:1,

            power1:2,

            am_mode1:1,

            xunk83d_7:1,

            narrow1:1;

        u8  xunk83e:6,

            shft_dir1:2;

        u8  xunk83F:3,

            compander1:1,

            scrambler1:4;

        u32  vfofreq2;

        u32  vfoofst2;

        u16  txtone2;

        u16  rxtone2;

        u8  xunk84C_1:3,

            mute2:2,

            xunk84C_2:3;

        u8  xunk84d_1:1,

            xunk84d_2:1,

            xunk84d_3:1,

            power2:2,

            am_mode2:1,

            xunk84d_7:1,

            narrow2:1;

        u8  xunk84e:6,

            shft_dir2:2;

        u8  xunk84F:3,

            compander2:1,

            scrambler2:4;

        u32  vfofreq3;

        u32  vfoofst3;

        u16  txtone3;

        u16  rxtone3;

        u8  xunk85C_1:3,

            mute3:2,

            xunk85C_2:3;

        u8  xunk85d_1:1,

            xunk85d_2:1,

            xunk85d_3:1,

            power3:2,

            am_mode3:1,

            xunk85d_7:1,

            narrow3:1;

        u8  xunk85e:6,

            shft_dir3:2;

        u8  xunk85F:3,

            compander3:1,

            scrambler3:4;

        u32  vfofreq4;

        u32  vfoofst4;

        u16  txtone4;

        u16  rxtone4;

        u8  xunk86C_1:3,

            mute4:2,

            xunk86C_2:3;

        u8  xunk86d_1:1,

            xunk86d_2:1,

            xunk86d_3:1,

            power4:2,

            am_mode4:1,

            xunk86d_7:1,

            narrow4:1;

        u8  xunk86e:6,

            shft_dir4:2;

        u8  xunk86F:3,

            compander4:1,

            scrambler4:4;

        u32  vfofreq5;

        u32  vfoofst5;

        u16  txtone5;

        u16  rxtone5;

        u8  xunk87C_1:3,

            mute5:2,

            xunk87C_2:3;

        u8  xunk87d_1:1,

            xunk87d_2:1,

            xunk87d_3:1,

            power5:2,

            am_mode5:1,

            xunk87d_7:1,

            narrow5:1;

        u8  xunk87e:6,

            shft_dir5:2;

        u8  xunk87F:3,

            compander5:1,

            scrambler5:4;

        u32  vfofreq6;

        u32  vfoofst6;

        u16  txtone6;

        u16  rxtone6;

        u8  xunk88C_1:3,

            mute6:2,

            xunk88C_2:3;

        u8  xunk88d_1:1,

            xunk88d_2:1,

            xunk88d_3:1,

            power6:2,

            am_mode6:1,

            xunk88d_7:1,

            narrow6:1;

        u8  xunk88e:6,

            shft_dir6:2;

        u8  xunk8F:3,

            compander6:1,

            scrambler6:4;

        u32  vfofreq7;

        u32  vfoofst7;

        u16  txtone7;

        u16  rxtone7;

        u8  xunk89C_1:3,

            mute7:2,

            xunk89C_2:3;

        u8  xunk89d_1:1,

            xunk89d_2:1,

            xunk89d_3:1,

            power7:2,

            am_mode7:1,

            xunk89d_7:1,

            narrow7:1;

        u8  xunk89e:6,

            shft_dir7:2;

        u8  xunk89F:3,

            compander7:1,

            scrambler7:4;

        u8  x8a0;

        u16  vfochan_a;

        u8  x8a3;

        u16  vfochan_b;

        u16  pri_ch;

        u8  x8a8;

        u8  x8a9;

        u8  scan_a_act;

        u8  scan_b_act;

        u8  m_pwr;

        u8  hold_time_rpt;

        u8  spk_cont;

        u8  ptt_id_dly;

        u8  x8b0;

        u8  voice;

        u8  tot;

        u8  toa;

        u8  roger;

        u8  sc_rev;

        u8  dtmfsf;

        u8  ptt_id;

        u8  ring;

        u8  ani_sw;

        u8  rc_sw;

        u8  alert;

        u8  bcl_a;

        u8  prich_sw;

        u8  x8bE;

        u8  ptt_id_dly;

        u8  menu;

        u8  x8c1;

        u8  beep;

        u8  x8c3;

        u8  x8c4;

        u8  tx_led;

        u8  wt_led;

        u8  rx_led;

        u8  x8c8;

        u8  vfomode_a;

        u8  vfomode_b;

        u8  vfosquelch_a;

        u8  vfosquelch_b;

        u8  vfostep_a;

        u8  vfostep_b;

        u8  x8cF;

        u8  rpt_spk;

        u8  rpt_ptt;

        u8  autolock;

        u8  apo_time;

        u8  low_v;

        u8  fan;

        u8  rpt_set_model;

        u8  pf1_set;

        u8  auto_am;

        u8  dtmf_time;

        u8  dtmf_int;

        u8  bcl_b;

        u8  rpt_tone;

        u8  sc_qt;

        u8  vfoband_a;

        u8  x8dF;

        u8  x8e0;

        u8  x8e1;

        u8  x8e2;

        u8  x8e3;

        u8  x8e4;

        u8  x8e5;

        u8  x8e6;

        u8  x8e7;

        u8  x8e8;

        u8  x8e9;

        u8  x8eA;

        u8  x8eB;

        u8  x8eC;

        u8  x8eD;

        u8  x8eE;

        u8  x8eF;

        u8  x8f0;

        u8  x8f1;

        u8  x8f2;

        u8  x8f3;

        u8  x8f4;

        u8  x8f5;

        u8  x8f6;

        u8  x8f7;

        u8  x8f8;

        u8  x8f9;

        u8  x8fA;

        u8  x8fB;

        u8  x8fC;

        u8  x8fD;

        u8  x8fE;

        u8  x8fF;

        u8  x900;

        u8  x901;

        u8  x902;

        u8  scan_det;

        u8  x904;

        u8  thr_vol_tx;

        u16  thr_vol_lvl;

        u8  x908;

        u8  x909;

        u8  x90A;

        u8  x90B;

        u8  x90C;

        u8  x90D;

        u8  x90E;

        u8  x90F;

        u8  x910;

        u8  x911;

        u8  x912;

        u8  x913;

        u8  x914;

        u8  x915;

        u8  x916;

        u8  x917;

        u8  x918;

        u8  x919;

        u8  x91A;

        u8  x91B;

        u8  x91C;

        u8  x91D;

        u8  x91E;

        u8  x91F;

        u8  x920;

        u8  x921;

        u8  x922;

        u8  x923;

        u8  x924;

        u8  x925;

        u8  x926;

        u8  x927;

        u8  x928;

        u8  x929;

        u8  x92A;

        u8  x92B;

        u8  x92C;

        u8  x92D;

        u8  x92E;

        u8  x92F;

        u8  x930;

        u8  x931;

        u8  x932;

        u8  x933;

        u8  x934;

        u8  x935;

        u8  x936;

        u8  x937;

        u8  x938;

        u8  x939;

        u8  x93A;

        u8  x93B;

        u8  x93C;

        u8  x93D;

        u8  x93E;

        u8  x93F;

        u16  scanlower1;

        u16  scanupper1;

        u16  scanlower2;

        u16  scanupper2;

        u16  scanlower3;

        u16  scanupper3;

        u16  scanlower4;

        u16  scanupper4;

        u16  scanlower5;

        u16  scanupper5;

        u16  scanlower6;

        u16  scanupper6;

        u16  scanlower7;

        u16  scanupper7;

        u16  scanlower8;

        u16  scanupper8;

        u16  scanlower9;

        u16  scanupper9;

        u16  scanlower10;

        u16  scanupper10;

        char  scanname0[6];

        u8  x96E;

        u8  x96F;

        char  scanname1[6];

        u8  x976;

        u8  x977;

        char  scanname2[6];

        u8  x97E;

        u8  x97F;

        char  scanname3[6];

        u8  x986;

        u8  x987;

        char  scanname4[6];

        u8  x98E;

        u8  x98F;

        char  scanname5[6];

        u8  x996;

        u8  x997;

        char  scanname6[6];

        u8  x99E;

        u8  x99F;

        char  scanname7[6];

        u8  x9a6;

        u8  x9a7;

        char  scanname8[6];

        u8  x9aE;

        u8  x9aF;

        char  scanname9[6];

        u8  x9b6;

        u8  x9b7;

        char  scanname10[6];

        u8  x9bE;

        u8  x9bF;

     } settings;

    #seekto 0x09f0;

    struct {

        u32     rxfreq;

        u32     txfreq;

        u16     txtone;

        u16     rxtone;

        u8      unknown1:3,

                mute_mode:2,

                unknown2:3;

        u8      named:1,

                scan_add:1,

                extra_power_bit:1,

                power:2,

                am_mode:1,

                unknownbit2:1,

                isnarrow:1;

        u8      unknown3:6,

                Unknown4_shft_dir:2;

        u8      unknown5:3,

                compander:1

                scrambler:4;

    } memory[1000];

    #seekto 0x48f8;

    struct {

        u8    name[8];

    } names[1000];

    #seekto 0x6fff;

    u8          valid[1000];

    """

def _freq_decode(in_freq, bytes=4):

    out_freq = 0

    for i in range(bytes*2):

        out_freq += (in_freq & 0xF) * (10 ** i)

        in_freq = in_freq >> 4

    if bytes == 4:

        return out_freq * 10

    elif bytes == 2:

        return out_freq * 100000

def _freq_encode(in_freq, bytes=4):

    if bytes == 4:

        return int('%08d' % (in_freq / 10), 16)

    elif bytes == 2:

        return int('%04d' % (in_freq / 100000), 16)

def _str_decode(in_str):

    out_str = ''

    stopchar = FALSE

    for c in in_str:

        if c !=0x00 and stopchar==FALSE:

            if chr(c) in chirp_common.CHARSET_ASCII:

                out_str+= chr(c)

        else:

            out_str+=''

            stopchar = TRUE

    return out_str

def _str_encode(in_str):

    out_str = ''

    for c in in_str:

        try:

            out_str += chr(ord(c))

        except ValueError:

            pass

    while len(out_str) < 8:

        out_str += chr(0x00)

    return out_str

def _chnum_decode(in_ch):

    return int(('%04x' % in_ch)[0:3])

def _chnum_encode(in_ch):

    return int('%03d0' % in_ch, 16)

# Support for the Wouxun KG-UV980P radio

# Serial coms are at 19200 baud

# The data is passed in variable length records

# Record structure:

#  Offset   Usage

#    0      start of record (\x7c)

#    1      Command (\x80 Identify \x81 End/Reboot \x82 Read \x83 Write)

#    2      direction (\xff PC-> Radio, \x00 Radio -> PC)

#    3      length of payload (excluding header/checksum) (n)

#    4      payload (n bytes)

#    4+n+1  checksum - only lower 4 bits of byte sum (% 256) of bytes 1 -> 4+n

#

# Memory Read Records:

# the payload is 3 bytes, first 2 are offset (big endian),

# 3rd is number of bytes to read

# Memory Write Records:

# the maximum payload size (from the Wouxun software) seems to be 66 bytes

#  (2 bytes location + 64 bytes data).

class KGUV8TRadio(chirp_common.Alias):

    VENDOR = "Wouxun"

    MODEL = "KG-UV980P"

@directory.register

class KG980GRadio(chirp_common.CloneModeRadio,

                  chirp_common.ExperimentalRadio):

    """Wouxun KG-UV980P"""

    VENDOR = "Wouxun"

    MODEL = "KG-UV980P"

    _model = "KG-UV950R2"

    _file_ident = "980P"

    BAUD_RATE = 19200

    POWER_LEVELS = [chirp_common.PowerLevel("L", watts=1.0), 

                    chirp_common.PowerLevel("M", watts=20.0), 

                    chirp_common.PowerLevel("H", watts=50.0)]

    _mmap = ""

    ALIASES = [KGUV8TRadio, ]

    def _checksum(self, data):

        cs = 0

        for byte in data:

            cs += ord(byte)

        return chr(cs % 256)

    # def _write_record_id(self):

	# _header = '\xda\x80\xff\x00\x58'

    #     LOG.error("Sent:\n%s" % util.hexprint(_header))

	# self.pipe.write(_header)

    def _write_record(self, cmd, payload=None):

        # build the packet

        _header = '\xda' + chr(cmd) + '\xff'

        _length = 0

        if payload:

            _length = len(payload)

        # update the length field

        _header += chr(_length)

        if payload:

            # calculate checksum then add it with the payload

            # to the packet and encrypt

            crc = self._checksum(_header[1:] + payload)

            # Checksum is only the lower 4 bits

            crc = chr(ord(crc) & 0xf)

            payload += crc

            _header += self.encrypt(payload)

        else:

            # calculate and add encrypted checksum to the packet

            crc = self._checksum(_header[1:])

            # Checksum is only the lower 4 bits

            crc = chr(ord(crc) & 0xf)

            _header += self.strxor(crc, '\x57')

        try:

            LOG.debug("Sent:\n%s" % util.hexprint(_header))

            self.pipe.write(_header)

        except Exception, e:

            raise errors.RadioError("Failed to communicate with radio: %s" % e)

    def _read_record(self):

        # read 4 chars for the header

        _header = self.pipe.read(4)

        #LOG.debug("header = " % util.hexprint(_header))

        if len(_header) != 4:

            raise errors.RadioError('Radio did not respond- header length')

        _length = ord(_header[3])

        _packet = self.pipe.read(_length)

        _rcs_xor = _packet[-1]

        _packet = self.decrypt(_packet)

        _cs = ord(self._checksum(_header[1:] + _packet))

        #It appears the checksum is only 4bits

        _cs = _cs & 0xf

#        LOG.debug("csum = " % _cs)

        #read the checksum and decrypt it 

        _rcs = ord(self.strxor(self.pipe.read(1), _rcs_xor))

        _rcs = _rcs & 0xf

#        LOG.debug("Rcsum = " % _rcs)

        return (_rcs != _cs, _packet)

    def decrypt(self, data):

        result = ''

        for i in range(len(data)-1, 0, -1):

            result += self.strxor(data[i], data[i - 1])

        result += self.strxor(data[0], '\x57')

        return result[::-1]

    def encrypt(self, data):

        result = self.strxor('\x57', data[0])

        for i in range(1, len(data), 1):

            result += self.strxor(result[i - 1], data[i])

        return result

    def strxor(self, xora, xorb):

        return chr(ord(xora) ^ ord(xorb))

    # Identify the radio

    #

    # A Gotcha: the first identify packet returns a bad checksum, subsequent

    # attempts return the correct checksum... (well it does on my radio!)

    #

    # The ID record returned by the radio also includes the

    # current frequency range

    # as 4 bytes big-endian in 10Hz increments

    #

    # Offset

    #  0:10     Model, zero padded (Looks for 'KG-UV8D-B')

    @classmethod

    def match_model(cls, filedata, filename):

        id = cls._file_ident

        return cls._file_ident in filedata[0x426:0x430]

    def _identify(self):

        """Do the identification dance"""

        for _i in range(0, 3):

            LOG.debug("ID try #"+str(_i))

            self._write_record(CMD_ID)

            _chksum_err, _resp = self._read_record()

            if len(_resp) == 0:

                raise Exception("Radio not responding")

            else:

                LOG.debug("Got:\n%s" % util.hexprint(_resp))

                LOG.debug("Model received is %s" % _resp[0:10])

                LOG.debug("Model expected is %s" % self._model)

                if _chksum_err:

                    LOG.error("Checksum error: retrying ident...")

                    time.sleep(0.100)

                    continue

                else:

                    LOG.debug("checksum passed")

                    if _resp[0:8] == self._model[0:8]:

                        LOG.debug("Passed identify")

                        break

                    else:

                        LOG.debug("FAILED to identify") 

    def _finish(self):

        self._write_record(CMD_END)

    def process_mmap(self):

        self._memobj = bitwise.parse(_MEM_FORMAT, self._mmap)

    def sync_in(self):

        try:

            self._mmap = self._download()

        except errors.RadioError:

            raise

        except Exception, e:

            raise errors.RadioError("Failed to communicate with radio: %s" % e)

        self.process_mmap()

    def sync_out(self):

        self._upload()

    # TODO: Load all memory.

    # It would be smarter to only load the active areas and none of

    # the padding/unused areas. Padding still need to be investigated.

    def _download(self):

        """Talk to a wouxun KG-UV980P and do a download"""

        try:

            self._identify()

            return self._do_download(0, 32768, 64)

        except errors.RadioError:

            raise

        except Exception, e:

            LOG.exception('Unknown error during download process')

            raise errors.RadioError("Failed to communicate with radio: %s" % e)

    def _do_download(self, start, end, blocksize):

        # allocate & fill memory

        LOG.debug("Start Download")

        image = ""

        for i in range(start, end, blocksize):

            req = chr(i / 256) + chr(i % 256) + chr(blocksize)

            self._write_record(CMD_RD, req)

            cs_error, resp = self._read_record()

            LOG.debug("Got:\n%s" % util.hexprint(resp))

            if cs_error:

                LOG.debug(util.hexprint(resp))

                raise Exception("Checksum error on read")

            # LOG.debug("Got:\n%s" % util.hexprint(resp))

            image += resp[2:]

            if self.status_fn:

                status = chirp_common.Status()

                status.cur = i

                status.max = end

                status.msg = "Cloning from radio"

                self.status_fn(status)

        self._finish()

        return memmap.MemoryMap(''.join(image))

    def _upload(self):

        """Talk to a wouxun KG-UV980P and do a upload"""

        try:

            self._identify()

            LOG.debug("Done with Upload Identify")

            self._do_upload(1856, 32768, 64)

        except errors.RadioError:

            raise

        except Exception, e:

            raise errors.RadioError("Failed to communicate with radio: %s" % e)

        return

    def _do_upload(self, start, end, blocksize):

        LOG.debug("Start of _do_upload")

        ptr = start

        LOG.debug("ptr = " + str(ptr))

        for i in range(start, end, blocksize):

            LOG.debug("Start of loop in _do_upload index = "+str(i))

            LOG.debug("Start %i End %i Size %i" % (start, end, blocksize))

            req = chr(i/ 256) + chr(i % 256)

            LOG.debug("REQ")

            chunk = self.get_mmap()[ptr:ptr + blocksize]

            LOG.debug("CHUNK")

            self._write_record(CMD_X1, req + chunk)

#            LOG.debug("Upload-- SENT : " % util.hexprint(_sent))

            cserr, ack = self._read_record()

            LOG.debug("Upload-- CSUM ERROR : " + str(cserr))

            LOG.debug("Upload-- RCVD :\n%s " % util.hexprint(ack))

            j = ord(ack[0]) * 256 + ord(ack[1])

            if cserr or j != ptr:

                raise Exception("Radio did not ack block %i" % ptr)

            ptr += blocksize

            if self.status_fn:

                status = chirp_common.Status()

                status.cur = i

                status.max = end

                status.msg = "Cloning to radio"

                self.status_fn(status)

        self._finish()

    def get_features(self):

        rf = chirp_common.RadioFeatures()

        rf.has_settings = True

        rf.has_ctone = True

        rf.has_rx_dtcs = True

        rf.has_cross = True

        rf.has_tuning_step = False

        rf.has_bank = False

        rf.can_odd_split = True

        rf.valid_skips = ["", "S"]

        rf.valid_tmodes = ["", "Tone", "TSQL", "DTCS", "Cross"]

        rf.valid_cross_modes = [

            "Tone->Tone",

            "Tone->DTCS",

            "DTCS->Tone",

            "DTCS->",

            "->Tone",

            "->DTCS",

            "DTCS->DTCS",

        ]

        rf.valid_modes = ["FM", "NFM", "AM", "NAM"]

        rf.valid_power_levels = self.POWER_LEVELS

        rf.valid_name_length = 8

        rf.valid_duplexes = ["", "-", "+", "split", "off"]

#   MRT - Open up channel memory freq range to support RxFreq limit expansion

        rf.valid_bands = [(26000000, 299999999),  # supports VHF

                          (300000000, 999999999)]  # supports UHF

        rf.valid_characters = chirp_common.CHARSET_ASCII

        rf.memory_bounds = (1, 999)  # 999 memories

        rf.valid_tuning_steps = STEPS

        return rf

    @classmethod

    def get_prompts(cls):

        rp = chirp_common.RadioPrompts()

        rp.experimental = \

            ('This driver is experimental and may contain bugs. \n'

              'USE AT YOUR OWN RISK \n'

              '\nAll CPS available settings are implemented EXCEPT \n'

              '---- MODE-PSW \n'

              '---- Remote Settings\n'

              '\n'

              'Mute, Compander and Scrambler are defaulted to '

              'QT, OFF , OFF for all channel memories\n\n'

              'Development continuing to implement other settings \n'

              'found on radio menu\n'

             )

        return rp

    def get_raw_memory(self, number):

        return repr(self._memobj.memory[number])

# MRT - corrected the Polarity decoding to match 980P implementation

# use 0x4000 bit mask for R

# MRT - 0x4000 appears to be the bit mask for Inverted DCS tones

# MRT - n DCS Tone will be 0x8xxx values - i DCS Tones will

# be 0xCxxx values.

# MRT - Chirp Uses N for n DCS Tones and R for i DCS Tones

# MRT - 980P encodes DCS tone # in decimal -  NOT OCTAL

    def _get_tone(self, _mem, mem):

        def _get_dcs(val):

            code = int("%03d" % (val & 0x07FF))

            pol = (val & 0x4000) and "R" or "N"

            return code, pol

# MRT - Modified the function below to bitwise AND with 0x4000

# to check for 980P DCS Tone decoding

# MRT 0x8000 appears to be the bit mask for DCS tones

        tpol = False

# MRT Beta 1.1 - Fix the txtone compare to 0x8000 - was rxtone.

        if _mem.txtone != 0xFFFF and (_mem.txtone & 0x8000) == 0x8000:

            tcode, tpol = _get_dcs(_mem.txtone)

            mem.dtcs = tcode

            txmode = "DTCS"

        elif _mem.txtone != 0xFFFF and _mem.txtone != 0x0:

            mem.rtone = (_mem.txtone & 0x7fff) / 10.0

            txmode = "Tone"

        else:

            txmode = ""

# MRT - Modified the function below to bitwise AND with 0x4000

# to check for 980P DCS Tone decoding

        rpol = False

        if _mem.rxtone != 0xFFFF and (_mem.rxtone & 0x8000) == 0x8000:

            rcode, rpol = _get_dcs(_mem.rxtone)

            mem.rx_dtcs = rcode