CHIRP

# Copyright 2020 Joe Milbourn <joe@milbourn.org.uk>

#

# 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 2 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/>.

# TODONE change flags to use named bits, not bit type, u8 talkaround:1...

# TODONE replace reprdata with utils.hexprint

# TODONE read the whole image into memdata - need to re-arrange MEM_FORMAT to

#        suit, seeking around to put things in the right places, and set

#        default values

# TODONE Exception as e

# TODONE return memmap.MemoryMapBytes

# TODONE change experimental prompt wording

# TODONE add DTCS

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

from chirp import bitwise

import struct

import time

import logging

LOG = logging.getLogger(__name__)

# Gross hack to handle missing future module on un-updatable

# platforms like MacOS. Just avoid registering these radio

# classes for now.

try:

    from builtins import bytes

    has_future = True

except ImportError:

    has_future = False

    LOG.warning('python-future package is not '

                'available; %s requires it' % __name__)

# Here is where we define the memory map for the radio. Since

# We often just know small bits of it, we can use #seekto to skip

# around as needed.

MEM_FORMAT = '''

#seekto 0x0000;

struct {

  bbcd freq[4];

  bbcd offset[4];

  u8 unknown1;

  u8 talkaround:1,

     scramble:1,

     unknown:2,

     txpower:2,

     duplex:2;

  u8 unknown_bits1:4,

     channel_width:2,

     reverse:1,

     tx_off:1;

  u8 unknown_bits2:4,

     dtcs_decode_en:1,

     ctcss_decode_en:1,

     dtcs_encode_en:1,

     ctcss_encode_en:1;

  u8 ctcss_dec_tone;

  u8 ctcss_enc_tone;

  u8 dtcs_decode_code;

  u8 unknown_bits6:6,

     dtcs_decode_invert:1,

     dtcs_decode_code_highbit:1;

  u8 dtcs_encode_code;

  u8 unknown_bits7:6,

     dtcs_encode_invert:1,

     dtcs_encode_code_highbit:1;

  u8 unknown_bits4:6,

     busy_channel_lockout:2;

  u8 unknown6;

  u8 unknown_bits5:7,

     tone_squelch_en:1;

  u8 unknown7;

  u8 unknown8;

  u8 unknown9;

  u8 unknown10;

  char name[5];

  ul16 customctcss;

} memory[200];

#seekto 0x1940;

struct {

  u8 occupied_bitfield[32];

  u8 scan_enabled_bitfield[32];

} memory_status;

'''

TXPOWER_LOW = 0x00

TXPOWER_MED = 0x01

TXPOWER_HIGH = 0x02

DUPLEX_NOSPLIT = 0x00

DUPLEX_POSSPLIT = 0x01

DUPLEX_NEGSPLIT = 0x02

DUPLEX_ODDSPLIT = 0x03

CHANNEL_WIDTH_25kHz = 0x02

CHANNEL_WIDTH_20kHz = 0x01

CHANNEL_WIDTH_12d5kHz = 0x00

BUSY_CHANNEL_LOCKOUT_OFF = 0x00

BUSY_CHANNEL_LOCKOUT_REPEATER = 0x01

BUSY_CHANNEL_LOCKOUT_BUSY = 0x02

#ALLOWED_RADIO_TYPES = ['AT778UV\x01V200']

MEMORY_ADDRESS_RANGE = (0x0000, 0x3290)

MEMORY_RW_BLOCK_SIZE = 0x10

MEMORY_RW_BLOCK_CMD_SIZE = 0x16

POWER_LEVELS = [chirp_common.PowerLevel('Low', dBm=37),

                chirp_common.PowerLevel('Medium', dBm=40),

                chirp_common.PowerLevel('High', dBm=44)]

# CTCSS Tone definitions

TONE_CUSTOM_CTCSS = 0x33

TONE_MAP_VAL_TO_TONE = {0x00: 62.5, 0x01: 67.0, 0x02: 69.3,

                        0x03: 71.9, 0x04: 74.4, 0x05: 77.0,

                        0x06: 79.7, 0x07: 82.5, 0x08: 85.4,

                        0x09: 88.5, 0x0a: 91.5, 0x0b: 94.8,

                        0x0c: 97.4, 0x0d: 100.0, 0x0e: 103.5,

                        0x0f: 107.2, 0x10: 110.9, 0x11: 114.8,

                        0x12: 118.8, 0x13: 123.0, 0x14: 127.3,

                        0x15: 131.8, 0x16: 136.5, 0x17: 141.3,

                        0x18: 146.2, 0x19: 151.4, 0x1a: 156.7,

                        0x1b: 159.8, 0x1c: 162.2, 0x1d: 165.5,

                        0x1e: 167.9, 0x1f: 171.3, 0x20: 173.8,

                        0x21: 177.3, 0x22: 179.9, 0x23: 183.5,

                        0x24: 186.2, 0x25: 189.9, 0x26: 192.8,

                        0x27: 196.6, 0x28: 199.5, 0x29: 203.5,

                        0x2a: 206.5, 0x2b: 210.7, 0x2c: 218.1,

                        0x2d: 225.7, 0x2e: 229.1, 0x2f: 233.6,

                        0x30: 241.8, 0x31: 250.3, 0x32: 254.1}

TONE_MAP_TONE_TO_VAL = {TONE_MAP_VAL_TO_TONE[val]: val

                        for val in TONE_MAP_VAL_TO_TONE}

TONES_EN_TXTONE = (1 << 3)

TONES_EN_RXTONE = (1 << 2)

TONES_EN_TXCODE = (1 << 1)

TONES_EN_RXCODE = (1 << 0)

TONES_EN_NO_TONE = 0

# Calculate the checksum used in serial packets

def checksum(message_bytes):

    mask = 0xFF

    checksum = 0

    for b in message_bytes:

        checksum = (checksum + b) & mask

    return checksum

# Send a command to the radio, return any reply stripping the echo of the

# command (tx and rx share a single pin in this radio)

def send_serial_command(serial, command, expectedlen=None):

    ''' send a command to the radio, and return any response.

    set expectedlen to return as soon as that many bytes are read.

    '''

    serial.write(command)

    serial.flush()

    response = b''

    tout = time.time() + 0.5

    while time.time() < tout:

        if serial.inWaiting():

            response += serial.read()

        # remember everything gets echo'd back

        if len(response) - len(command) == expectedlen:

            break

    # cut off what got echo'd back, we don't need to see it again

    if response.startswith(command):

        response = response[len(command):]

    return response

# return pretty printed hex and ascii representation of binary data

def reprdata(bindata):

    hexwidth = 60

    sepwidth = 4

    line = ''

    sepctr = 0

    for b in bytes(bindata):

        line += '%02x' % ord(b)

        sepctr += 1

        if sepctr == sepwidth:

            line += ' '

            sepctr = 0

    line += ' ' * (hexwidth - len(line))

    for b in bindata:

        if 0x21 <= ord(b) <= 0x7E:

            line += b

        else:

            line += '.'

    return line

# Check the radio version reported to see if it's one we support

# TODO extend this list, as I suspect there are other very similar radios

# like the RT95

def check_ver(ver_response, allowed_types):

    ''' Check the returned radio version is one we approve of '''

    ver = ver_response[1:-3]

    LOG.debug("ver_response = " + util.hexprint(ver_response))

    LOG.debug('radio version: %s' % ver)

    return ver in allowed_types

# Put the radio in programming mode, sending the initial command and checking

# the response.  raise RadioError if there is no response (500ms timeout), and

# if the returned version isn't matched by check_ver

def enter_program_mode(radio):

    serial = radio.pipe

    # place the radio in program mode, and confirm

    program_response = send_serial_command(serial, b'PROGRAM')

    if program_response != b'QX\x06':

        raise errors.RadioError('No initial response from radio.')

    LOG.debug('entered program mode')

    # read the radio ID string, make sure it matches one we know about

    ver_response = send_serial_command(serial, b'\x02')

    if not check_ver(ver_response, radio.ALLOWED_RADIO_TYPES):

        exit_program_mode(radio)

        raise errors.RadioError('Radio version not in allowed list: %s'

                                % util.hexprint(ver_response))

# Exit programming mode

def exit_program_mode(radio):

    send_serial_command(radio.pipe, b'END')

# Parse a packet from the radio returning the header (R/W, address, data, and

# checksum valid

def parse_read_response(resp):

    addr = resp[:4]

    data = bytes(resp[4:-2])

    cs = checksum(ord(d) for d in resp[1:-2])

    valid = cs == ord(resp[-2])

    if not valid:

        LOG.error('checksumfail: %02x, expected %02x' % (cs, ord(resp[-2])))

        LOG.error('msg data: %s' % util.hexprint(resp))

    return addr, data, valid

# Download data from the radio and populate the memory map

def do_download(radio):

    '''Download memories from the radio'''

    # Get the serial port connection

    serial = radio.pipe

    try:

        enter_program_mode(radio)

        memory_data = bytes()

        # status info for the UI

        status = chirp_common.Status()

        status.cur = 0

        status.max = (MEMORY_ADDRESS_RANGE[1] -

                      MEMORY_ADDRESS_RANGE[0])/MEMORY_RW_BLOCK_SIZE

        status.msg = 'Cloning from radio...'

        radio.status_fn(status)

        for addr in range(MEMORY_ADDRESS_RANGE[0],

                          MEMORY_ADDRESS_RANGE[1] + MEMORY_RW_BLOCK_SIZE,

                          MEMORY_RW_BLOCK_SIZE):

            read_command = struct.pack('>BHB', 0x52, addr,

                                       MEMORY_RW_BLOCK_SIZE)

            read_response = send_serial_command(serial, read_command,

                                                MEMORY_RW_BLOCK_CMD_SIZE)

            # LOG.debug('read response:\n%s' % util.hexprint(read_response))

            address, data, valid = parse_read_response(read_response)

            memory_data += data

            # update UI

            status.cur = (addr - MEMORY_ADDRESS_RANGE[0])\

                / MEMORY_RW_BLOCK_SIZE

            radio.status_fn(status)

        exit_program_mode(radio)

    except errors.RadioError as e:

        raise e

    except Exception as e:

        raise errors.RadioError('Failed to download from radio: %s' % e)

    return memmap.MemoryMapBytes(memory_data)

# Build a write data command to send to the radio

def make_write_data_cmd(addr, data, datalen):

    cmd = struct.pack('>BHB', 0x57, addr, datalen)

    cmd += data

    cs = checksum(ord(c) for c in cmd[1:])

    cmd += struct.pack('>BB', cs, 0x06)

    return cmd

# Upload a memory map to the radio

def do_upload(radio):

    try:

        enter_program_mode(radio)

        serial = radio.pipe

        # send the initial message, radio responds with something that looks a

        # bit like a bitfield, but I don't know what it is yet.

        read_command = struct.pack('>BHB', 0x52, 0x3b10, MEMORY_RW_BLOCK_SIZE)

        read_response = send_serial_command(serial, read_command,

                                            MEMORY_RW_BLOCK_CMD_SIZE)

        address, data, valid = parse_read_response(read_response)

        LOG.debug('Got initial response from radio: %s' %

                  util.hexprint(read_response))

        bptr = 0

        memory_addrs = range(MEMORY_ADDRESS_RANGE[0],

                             MEMORY_ADDRESS_RANGE[1] + MEMORY_RW_BLOCK_SIZE,

                             MEMORY_RW_BLOCK_SIZE)

        # status info for the UI

        status = chirp_common.Status()

        status.cur = 0

        status.max = len(memory_addrs)

        status.msg = 'Cloning to radio...'

        radio.status_fn(status)

        for idx, addr in enumerate(memory_addrs):

            write_command = make_write_data_cmd(

                addr, radio._mmap[bptr:bptr+MEMORY_RW_BLOCK_SIZE],

                MEMORY_RW_BLOCK_SIZE)

            # LOG.debug('write data:\n%s' % util.hexprint(write_command))

            write_response = send_serial_command(serial, write_command, 0x01)

            bptr += MEMORY_RW_BLOCK_SIZE

            if write_response == '\x0a':

                # NACK from radio, e.g. checksum wrongn

                LOG.debug('Radio returned 0x0a - NACK:')

                LOG.debug(' * write cmd:\n%s' % util.hexprint(write_command))

                LOG.debug(' * write response:\n%s' %

                          util.hexprint(write_response))

                exit_program_mode(radio)

                raise errors.RadioError('Radio NACK\'d write command')

            # update UI

            status.cur = idx

            radio.status_fn(status)

        exit_program_mode(radio)

    except errors.RadioError:

        raise

    except Exception as e:

        raise errors.RadioError('Failed to download from radio: %s' % e)

# Get the value of @bitfield @number of bits in from 0

def get_bitfield(bitfield, number):

    ''' Get the value of @bitfield @number of bits in '''

    byteidx = number//8

    bitidx = number - (byteidx * 8)

    return bitfield[byteidx] & (1 << bitidx)

# Set the @value of @bitfield @number of bits in from 0

def set_bitfield(bitfield, number, value):

    ''' Set the @value of @bitfield @number of bits in '''

    byteidx = number//8

    bitidx = number - (byteidx * 8)

    if value is True:

        bitfield[byteidx] |= (1 << bitidx)

    else:

        bitfield[byteidx] &= ~(1 << bitidx)

    return bitfield

# Translate the radio's version of a code as stored to a real code

def dtcs_code_bits_to_val(highbit, lowbyte):

    return chirp_common.ALL_DTCS_CODES[highbit*256 + lowbyte]

# Translate the radio's version of a tone as stored to a real tone

def ctcss_tone_bits_to_val(tone_byte):

    # TODO use the custom setting 0x33 and ref the custom ctcss

    # field

    tone_byte = int(tone_byte)

    if tone_byte in TONE_MAP_VAL_TO_TONE:

        return TONE_MAP_VAL_TO_TONE[tone_byte]

    elif tone_byte == TONE_CUSTOM_CTCSS:

        LOG.info('custom ctcss not implemented (yet?).')

    else:

        raise errors.UnsupportedToneError('unknown ctcss tone value: %02x' %

                                          tone_byte)

# Translate a real tone to the radio's version as stored

def ctcss_code_val_to_bits(tone_value):

    if tone_value in TONE_MAP_TONE_TO_VAL:

        return TONE_MAP_TONE_TO_VAL[tone_value]

    else:

        raise errors.UnsupportedToneError('Tone %f not supported' % tone_value)

# Translate a real code to the radio's version as stored

def dtcs_code_val_to_bits(code):

    val = chirp_common.ALL_DTCS_CODES.index(code)

    return (val & 0xFF), ((val >> 8) & 0x01)

class AnyTone778UVBase(chirp_common.CloneModeRadio,

                       chirp_common.ExperimentalRadio):

    '''AnyTone 778UV and probably Retivis RT95 and others'''

    BAUD_RATE = 9600    # Replace this with your baud rate

    @classmethod

    def get_prompts(cls):

        rp = chirp_common.RadioPrompts()

        rp.experimental = \

            ('This is experimental support for the %s %s.  '

             'Please send in bug and enhancement requests!' %

             (cls.VENDOR, cls.MODEL))

        return rp

    # Return information about this radio's features, including

    # how many memories it has, what bands it supports, etc

    def get_features(self):

        rf = chirp_common.RadioFeatures()

        rf.has_bank = False

        rf.has_settings = False

        rf.can_odd_split = True

        rf.has_name = True

        rf.has_offset = True

        rf.valid_name_length = 5

        rf.valid_duplexes = ['', '+', '-', 'split']

        rf.has_dtcs = True

        rf.has_rx_dtcs = True

        rf.has_dtcs_polarity = True

        rf.valid_dtcs_codes = chirp_common.ALL_DTCS_CODES

        rf.has_ctone = True

        rf.has_cross = True

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

        rf.valid_cross_modes = ['Tone->Tone',

                                'Tone->DTCS',

                                'DTCS->Tone',

                                'DTCS->DTCS',

                                'DTCS->',

                                '->DTCS',

                                '->Tone']

        rf.memory_bounds = (0, 199)  # This radio supports memories 0-199

        rf.valid_bands = [(144000000, 148000000),  # Supports 2-meters

                          (430000000, 450000000),  # Supports 70-centimeters

                          ]

        rf.valid_modes = ['FM', 'NFM']

        rf.valid_power_levels = POWER_LEVELS

        rf.valid_tuning_steps = [2.5, 5, 6.25, 10, 12.5, 20, 25, 30, 50]

        return rf

    # Do a download of the radio from the serial port

    def sync_in(self):

        self._mmap = do_download(self)

        self.process_mmap()

    # Do an upload of the radio to the serial port

    def sync_out(self):

        do_upload(self)

    # Convert the raw byte array into a memory object structure

    def process_mmap(self):

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

    # Return a raw representation of the memory object, which

    # is very helpful for development

    def get_raw_memory(self, number):

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

    # Extract a high-level memory object from the low-level memory map

    # This is called to populate a memory in the UI

    def get_memory(self, number):

        # Get a low-level memory object mapped to the image

        _mem = self._memobj.memory[number]

        _mem_status = self._memobj.memory_status

        # Create a high-level memory object to return to the UI

        mem = chirp_common.Memory()

        mem.number = number                 # Set the memory number

        # Check if this memory is present in the occupied list

        mem.empty = get_bitfield(_mem_status.occupied_bitfield, number) == 0

        if not mem.empty:

            # Check if this memory is in the scan enabled list

            mem.skip = ''

            if get_bitfield(_mem_status.scan_enabled_bitfield, number) == 0:

                mem.skip = 'S'

            # set the name

            mem.name = str(_mem.name).rstrip()  # Set the alpha tag

            # Convert your low-level frequency and offset to Hertz

            mem.freq = int(_mem.freq) * 10

            mem.offset = int(_mem.offset) * 10

            # Set the duplex flags

            if _mem.duplex == DUPLEX_POSSPLIT:

                mem.duplex = '+'

            elif _mem.duplex == DUPLEX_NEGSPLIT:

                mem.duplex = '-'

            elif _mem.duplex == DUPLEX_NOSPLIT:

                mem.duplex = ''

            elif _mem.duplex == DUPLEX_ODDSPLIT:

                mem.duplex = 'split'

            else:

                LOG.error('%s: get_mem: unhandled duplex: %02x' %

                          (mem.name, _mem.duplex))

            # Set the channel width

            if _mem.channel_width == CHANNEL_WIDTH_25kHz:

                mem.mode = 'FM'

            elif _mem.channel_width == CHANNEL_WIDTH_20kHz:

                LOG.info(

                    '%s: get_mem: promoting 20kHz channel width to 25kHz' %

                    mem.name)

                mem.mode = 'FM'

            elif _mem.channel_width == CHANNEL_WIDTH_12d5kHz:

                mem.mode = 'NFM'

            else:

                LOG.error('%s: get_mem: unhandled channel width: 0x%02x' %

                          (mem.name, _mem.channel_width))

            # set the power level

            if _mem.txpower == TXPOWER_LOW:

                mem.power = POWER_LEVELS[0]

            elif _mem.txpower == TXPOWER_MED:

                mem.power = POWER_LEVELS[1]

            elif _mem.txpower == TXPOWER_HIGH:

                mem.power = POWER_LEVELS[2]

            else:

                LOG.error('%s: get_mem: unhandled power level: 0x%02x' %

                          (mem.name, _mem.txpower))

            # CTCSS Tones

            # TODO support custom ctcss tones here

            txtone = None

            rxtone = None

            rxcode = None

            txcode = None

            # check if dtcs tx is enabled

            if _mem.dtcs_encode_en:

                txcode = dtcs_code_bits_to_val(_mem.dtcs_encode_code_highbit,

                                     _mem.dtcs_encode_code)

            # check if dtcs rx is enabled

            if _mem.dtcs_decode_en:

                rxcode = dtcs_code_bits_to_val(_mem.dtcs_decode_code_highbit,

                                     _mem.dtcs_decode_code)

            if txcode is not None:

                LOG.debug('%s: get_mem dtcs_enc: %d' % (mem.name, txcode))

            if rxcode is not None:

                LOG.debug('%s: get_mem dtcs_dec: %d' % (mem.name, rxcode))

            # tsql set if radio squelches on tone

            tsql = _mem.tone_squelch_en

            # check if ctcss tx is enabled

            if _mem.ctcss_encode_en:

                txtone = ctcss_tone_bits_to_val(_mem.ctcss_enc_tone)

            # check if ctcss rx is enabled

            if _mem.ctcss_decode_en:

                rxtone = ctcss_tone_bits_to_val(_mem.ctcss_dec_tone)

            # Define this here to allow a readable if-else tree enabling tone

            # options

            enabled = 0

            enabled |= (txtone is not None) * TONES_EN_TXTONE

            enabled |= (rxtone is not None) * TONES_EN_RXTONE

            enabled |= (txcode is not None) * TONES_EN_TXCODE

            enabled |= (rxcode is not None) * TONES_EN_RXCODE

            # Add some debugging output for the tone bitmap

            enstr = []

            if enabled & TONES_EN_TXTONE:

                enstr += ['TONES_EN_TXTONE']

            if enabled & TONES_EN_RXTONE:

                enstr += ['TONES_EN_RXTONE']

            if enabled & TONES_EN_TXCODE:

                enstr += ['TONES_EN_TXCODE']

            if enabled & TONES_EN_RXCODE:

                enstr += ['TONES_EN_RXCODE']

            if enabled == 0:

                enstr = ['TONES_EN_NOTONE']

            LOG.debug('%s: enabled = %s' % (

                mem.name, '|'.join(enstr)))

            mem.tmode = ''

            if enabled == TONES_EN_NO_TONE:

                mem.tmode = ''

            elif enabled == TONES_EN_TXTONE:

                mem.tmode = 'Tone'

                mem.rtone = txtone

            elif enabled == TONES_EN_RXTONE and tsql:

                mem.tmode = 'Cross'

                mem.cross_mode = '->Tone'

                mem.ctone = rxtone

            elif enabled == (TONES_EN_TXTONE | TONES_EN_RXTONE) and tsql:

                if txtone == rxtone:  # TSQL

                    mem.tmode = 'TSQL'

                    mem.ctone = txtone

                else:  # Tone->Tone

                    mem.tmode = 'Cross'

                    mem.cross_mode = 'Tone->Tone'

                    mem.ctone = rxtone

                    mem.rtone = txtone

            elif enabled == TONES_EN_TXCODE:

                mem.tmode = 'Cross'

                mem.cross_mode = 'DTCS->'

                mem.dtcs = txcode

            elif enabled == TONES_EN_RXCODE and tsql:

                mem.tmode = 'Cross'

                mem.cross_mode = '->DTCS'

                mem.rx_dtcs = rxcode

            elif enabled == (TONES_EN_TXCODE | TONES_EN_RXCODE) and tsql:

                if rxcode == txcode:

                    mem.tmode = 'DTCS'

                    mem.rx_dtcs = rxcode

                else:

                    mem.tmode = 'Cross'

                    mem.cross_mode = 'DTCS->DTCS'

                    mem.rx_dtcs = rxcode

                    mem.dtcs = txcode

            elif enabled == (TONES_EN_TXCODE | TONES_EN_RXTONE) and tsql:

                mem.tmode = 'Cross'

                mem.cross_mode = 'DTCS->Tone'

                mem.dtcs = txcode

                mem.ctone = rxtone

            elif enabled == (TONES_EN_TXTONE | TONES_EN_RXCODE) and tsql:

                mem.tmode = 'Cross'

                mem.cross_mode = 'Tone->DTCS'

                mem.rx_dtcs = rxcode

                mem.rtone = txtone

            else:

                LOG.error('%s: Unhandled tmode enabled = %d.' % (

                    mem.name, enabled))

            # set the dtcs polarity

            dtcs_pol_bit_to_str = {0: 'N', 1: 'R'}

            mem.dtcs_polarity = '%s%s' %\

                (dtcs_pol_bit_to_str[_mem.dtcs_encode_invert == 1],

                 dtcs_pol_bit_to_str[_mem.dtcs_decode_invert == 1])

        return mem

    # Store details about a high-level memory to the memory map

    # This is called when a user edits a memory in the UI

    def set_memory(self, mem):

        # Get a low-level memory object mapped to the image

        _mem = self._memobj.memory[mem.number]

        _mem_status = self._memobj.memory_status

        # set the occupied bitfield

        _mem_status.occupied_bitfield = \

            set_bitfield(_mem_status.occupied_bitfield, mem.number,

                         not mem.empty)

        # set the scan add bitfield

        _mem_status.scan_enabled_bitfield = \

            set_bitfield(_mem_status.scan_enabled_bitfield, mem.number,

                         (not mem.empty) and (mem.skip != 'S'))

        if mem.empty:

            # Set the whole memory to 0xff

            _mem.set_raw('\xff' * (_mem.size() / 8))

        else:

            _mem.set_raw('\x00' * (_mem.size() / 8))

            _mem.freq = int(mem.freq / 10)

            _mem.offset = int(mem.offset / 10)

            _mem.name = mem.name.ljust(5)[:5]  # Store the alpha tag

            # TODO support busy channel lockout - disabled for now

            _mem.busy_channel_lockout = BUSY_CHANNEL_LOCKOUT_OFF

            # Set duplex bitfields

            if mem.duplex == '+':

                _mem.duplex = DUPLEX_POSSPLIT

            elif mem.duplex == '-':

                _mem.duplex = DUPLEX_NEGSPLIT

            elif mem.duplex == '':

                _mem.duplex = DUPLEX_NOSPLIT

            elif mem.duplex == 'split':

                # TODO: this is an unverified punt!

                _mem.duplex = DUPLEX_ODDSPLIT

            else:

                LOG.error('%s: set_mem: unhandled duplex: %s' %

                          (mem.name, mem.duplex))

            # Set the channel width - remember we promote 20kHz channels to FM

            # on import, so don't handle them here

            if mem.mode == 'FM':

                _mem.channel_width = CHANNEL_WIDTH_25kHz

            elif mem.mode == 'NFM':

                _mem.channel_width = CHANNEL_WIDTH_12d5kHz

            else:

                LOG.error('%s: set_mem: unhandled mode: %s' % (

                    mem.name, mem.mode))

            # set the power level

            if mem.power == POWER_LEVELS[0]:

                _mem.txpower = TXPOWER_LOW

            elif mem.power == POWER_LEVELS[1]:

                _mem.txpower = TXPOWER_MED

            elif mem.power == POWER_LEVELS[2]:

                _mem.txpower = TXPOWER_LOW

            else:

                LOG.error('%s: set_mem: unhandled power level: %s' %

                          (mem.name, mem.power))

            # TODO set the CTCSS values

            # TODO support custom ctcss tones here

            # Default - tones off, carrier sql

            _mem.ctcss_encode_en = 0

            _mem.ctcss_decode_en = 0

            _mem.tone_squelch_en = 0

            _mem.ctcss_enc_tone = 0x00

            _mem.ctcss_dec_tone = 0x00

            _mem.customctcss = 0x00

            _mem.dtcs_encode_en = 0

            _mem.dtcs_encode_code_highbit = 0

            _mem.dtcs_encode_code = 0

            _mem.dtcs_encode_invert = 0

            _mem.dtcs_decode_en = 0

            _mem.dtcs_decode_code_highbit = 0

            _mem.dtcs_decode_code = 0

            _mem.dtcs_decode_invert = 0

            dtcs_pol_str_to_bit = {'N': 0, 'R': 1}

            _mem.dtcs_encode_invert = dtcs_pol_str_to_bit[mem.dtcs_polarity[0]]

            _mem.dtcs_decode_invert = dtcs_pol_str_to_bit[mem.dtcs_polarity[1]]

            if mem.tmode == 'Tone':

                _mem.ctcss_encode_en = 1

                _mem.ctcss_enc_tone = ctcss_code_val_to_bits(mem.rtone)

            elif mem.tmode == 'TSQL':

                _mem.ctcss_encode_en = 1

                _mem.ctcss_enc_tone = ctcss_code_val_to_bits(mem.ctone)

                _mem.ctcss_decode_en = 1

                _mem.tone_squelch_en = 1

                _mem.ctcss_dec_tone = ctcss_code_val_to_bits(mem.ctone)

            elif mem.tmode == 'DTCS':

                _mem.dtcs_encode_en = 1

                _mem.dtcs_encode_code, _mem.dtcs_encode_code_highbit = \

                    dtcs_code_val_to_bits(mem.rx_dtcs)

                _mem.dtcs_decode_en = 1

                _mem.dtcs_decode_code, _mem.dtcs_decode_code_highbit = \

                    dtcs_code_val_to_bits(mem.rx_dtcs)

                _mem.tone_squelch_en = 1

            elif mem.tmode == 'Cross':

                txmode, rxmode = mem.cross_mode.split('->')

                if txmode == 'Tone':

                    _mem.ctcss_encode_en = 1

                    _mem.ctcss_enc_tone = ctcss_code_val_to_bits(mem.rtone)

                elif txmode == '':

                    pass

                elif txmode == 'DTCS':

                    _mem.dtcs_encode_en = 1

                    _mem.dtcs_encode_code, _mem.dtcs_encode_code_highbit = \

                        dtcs_code_val_to_bits(mem.dtcs)

                else:

                    LOG.error('%s: unhandled cross TX mode: %s' % (

                        mem.name, mem.cross_mode))

                if rxmode == 'Tone':

                    _mem.ctcss_decode_en = 1

                    _mem.tone_squelch_en = 1

                    _mem.ctcss_dec_tone = ctcss_code_val_to_bits(mem.ctone)

                elif rxmode == '':

                    pass

                elif rxmode == 'DTCS':

                    _mem.dtcs_decode_en = 1

                    _mem.dtcs_decode_code, _mem.dtcs_decode_code_highbit = \

                        dtcs_code_val_to_bits(mem.rx_dtcs)

                    _mem.tone_squelch_en = 1

                else:

                    LOG.error('%s: unhandled cross RX mode: %s' % (

                        mem.name, mem.cross_mode))

            else:

                LOG.error('%s: Unhandled tmode/cross %s/%s.' %

                          (mem.name, mem.tmode, mem.cross_mode))

            LOG.debug('%s: tmode=%s, cross=%s, rtone=%f, ctone=%f' % (

                mem.name, mem.tmode, mem.cross_mode, mem.rtone, mem.ctone))

            LOG.debug('%s: CENC=%d, CDEC=%d, t(enc)=%02x, t(dec)=%02x' % (

                mem.name,

                _mem.ctcss_encode_en,

                _mem.ctcss_decode_en,

                ctcss_code_val_to_bits(mem.rtone),

                ctcss_code_val_to_bits(mem.ctone)))

            # TODO set unknown defaults - hope that fixes Run time error 6,

            # overflow, from AT_778UV tool

            _mem.unknown1 = 0x00

            _mem.unknown6 = 0x00

            _mem.unknown7 = 0x00

            _mem.unknown8 = 0x00

            _mem.unknown9 = 0x00

            _mem.unknown10 = 0x00

if has_future:

    @directory.register

    class AnyTone778UV(AnyTone778UVBase):

        VENDOR = "AnyTone"

        MODEL = "778UV"

        ALLOWED_RADIO_TYPES = ['AT778UV\x01V200']

    @directory.register

    class RetevisRT95(AnyTone778UVBase):

        VENDOR = "Retevis"

        MODEL = "RT95"

        ALLOWED_RADIO_TYPES = [b'RT95\x00\x00\x00\x01V100']

    @directory.register

    class CRTMicronUV(AnyTone778UVBase):

        VENDOR = "CRT"

        MODEL = "Micron UV"

        ALLOWED_RADIO_TYPES = [b'MICRON\x00\x01V100']