[chirp_devel] [PATCH] [LT-725UV] Add Support for LUITON LT-725UV

Jim Unroe
Sat Sep 3 17:01:34 PDT 2016


# HG changeset patch
# User Jim Unroe <rock.unroe at gmail.com>
# Date 1472946898 14400
# Node ID 75cb01b8fb0d0a0f523db839a1eb876839861050
# Parent  617ef175811dcf0d49b8dba8769e845972ebf672
[LT-725UV] Add Support for LUITON LT-725UV

This patch adds basic support for the LUITON LT-725UV mobile radio.

#3745

diff -r 617ef175811d -r 75cb01b8fb0d chirp/drivers/lt725uv.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/chirp/drivers/lt725uv.py	Sat Sep 03 19:54:58 2016 -0400
@@ -0,0 +1,763 @@
+# Copyright 2016:
+# * Jim Unroe KC9HI, <rock.unroe at 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 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/>.
+
+import time
+import struct
+import logging
+import re
+
+LOG = logging.getLogger(__name__)
+
+from chirp import chirp_common, directory, memmap
+from chirp import bitwise, errors, util
+from chirp.settings import RadioSettingGroup, RadioSetting, \
+    RadioSettingValueBoolean, RadioSettingValueList, \
+    RadioSettingValueString, RadioSettingValueInteger, \
+    RadioSettingValueFloat, RadioSettings
+from textwrap import dedent
+
+MEM_FORMAT = """
+#seekto 0x0200;
+struct {
+  u8  unknown1;
+  u8  volume;
+  u8  unknown2[2];
+  u8  wtled;
+  u8  rxled;
+  u8  txled;
+  u8  ledsw;
+  u8  beep;
+  u8  ring;
+  u8  bcl;
+  u8  tot;
+} settings;
+
+struct vfo {
+  u8  unknown1[2];
+  u32 rxfreq;
+  u8  unknown2[8];
+  u8  power;
+  u8  unknown3[3];
+  u24 offset;
+  u32 step;
+  u8  sql;
+};
+
+#seekto 0x0300;
+struct {
+  struct vfo vfoa;
+} upper;
+
+#seekto 0x0380;
+struct {
+  struct vfo vfob;
+} lower;
+
+struct mem {
+  u32 rxfreq;
+  u16 is_rxdigtone:1,
+      rxdtcs_pol:1,
+      rxtone:14;
+  u8  recvmode;
+  u32 txfreq;
+  u16 is_txdigtone:1,
+      txdtcs_pol:1,
+      txtone:14;
+  u8  botsignal;
+  u8  eotsignal;
+  u8  power:1,
+      wide:1,
+      compandor:1
+      scrambler:1
+      unknown:4;
+  u8  namelen;
+  u8  name[6];
+  u8  unused;
+};
+
+#seekto 0x0400;
+struct mem upper_memory[128];
+
+#seekto 0x1000;
+struct mem lower_memory[128];
+
+"""
+
+MEM_SIZE = 0x1C00
+BLOCK_SIZE = 0x40
+STIMEOUT = 2
+
+LIST_RECVMODE = ["", "QT/DQT", "QT/DQT + Signaling"]
+LIST_SIGNAL = ["Off"] + ["DTMF%s" % x for x in range(1, 9)] + \
+              ["DTMF%s + Identity" % x for x in range(1, 9)] + \
+              ["Identity code"]
+LIST_POWER = ["Low", "Mid", "High"]
+LIST_COLOR = ["Off", "Orange", "Blue", "Purple"]
+LIST_LEDSW = ["Auto", "On"]
+LIST_RING = ["Off"] + ["%s seconds" % x for x in range(1, 10)]
+LIST_TIMEOUT = ["Off"] + ["%s seconds" % x for x in range(30, 630, 30)]
+
+
+def _clean_buffer(radio):
+    radio.pipe.timeout = 0.005
+    junk = radio.pipe.read(256)
+    radio.pipe.timeout = STIMEOUT
+    if junk:
+        Log.debug("Got %i bytes of junk before starting" % len(junk))
+
+
+def _rawrecv(radio, amount):
+    """Raw read from the radio device"""
+    data = ""
+    try:
+        data = radio.pipe.read(amount)
+    except:
+        _exit_program_mode(radio)
+        msg = "Generic error reading data from radio; check your cable."
+        raise errors.RadioError(msg)
+
+    if len(data) != amount:
+        _exit_program_mode(radio)
+        msg = "Error reading data from radio: not the amount of data we want."
+        raise errors.RadioError(msg)
+
+    return data
+
+
+def _rawsend(radio, data):
+    """Raw send to the radio device"""
+    try:
+        radio.pipe.write(data)
+    except:
+        raise errors.RadioError("Error sending data to radio")
+
+
+def _make_frame(cmd, addr, length, data=""):
+    """Pack the info in the headder format"""
+    frame = struct.pack(">4sHH", cmd, addr, length)
+    # add the data if set
+    if len(data) != 0:
+        frame += data
+    # return the data
+    return frame
+
+
+def _recv(radio, addr, length):
+    """Get data from the radio """
+
+    data = _rawrecv(radio, length)
+
+    # DEBUG
+    LOG.info("Response:")
+    LOG.debug(util.hexprint(data))
+
+    return data
+
+
+def _do_ident(radio):
+    """Put the radio in PROGRAM mode & identify it"""
+    #  set the serial discipline
+    radio.pipe.baudrate = 19200
+    radio.pipe.parity = "N"
+    radio.pipe.timeout = STIMEOUT
+
+    # flush input buffer
+    _clean_buffer(radio)
+
+    magic = "PROM_LIN"
+
+    _rawsend(radio, magic)
+
+    ack = _rawrecv(radio, 1)
+    if ack != "\x06":
+        _exit_program_mode(radio)
+        if ack:
+            LOG.debug(repr(ack))
+        raise errors.RadioError("Radio did not respond")
+
+    return True
+
+
+def _exit_program_mode(radio):
+    endframe = "EXIT"
+    _rawsend(radio, endframe)
+
+
+def _download(radio):
+    """Get the memory map"""
+
+    # put radio in program mode and identify it
+    _do_ident(radio)
+
+    # UI progress
+    status = chirp_common.Status()
+    status.cur = 0
+    status.max = MEM_SIZE / BLOCK_SIZE
+    status.msg = "Cloning from radio..."
+    radio.status_fn(status)
+
+    data = ""
+    for addr in range(0, MEM_SIZE, BLOCK_SIZE):
+        frame = _make_frame("READ", addr, BLOCK_SIZE)
+        # DEBUG
+        LOG.info("Request sent:")
+        LOG.debug(util.hexprint(frame))
+
+        # sending the read request
+        _rawsend(radio, frame)
+
+        # now we read
+        d = _recv(radio, addr, BLOCK_SIZE)
+
+        # aggregate the data
+        data += d
+
+        # UI Update
+        status.cur = addr / BLOCK_SIZE
+        status.msg = "Cloning from radio..."
+        radio.status_fn(status)
+
+    _exit_program_mode(radio)
+
+    data += "LT-725UV"
+
+    return data
+
+
+def _upload(radio):
+    """Upload procedure"""
+
+    # put radio in program mode and identify it
+    _do_ident(radio)
+
+    # UI progress
+    status = chirp_common.Status()
+    status.cur = 0
+    status.max = MEM_SIZE / BLOCK_SIZE
+    status.msg = "Cloning to radio..."
+    radio.status_fn(status)
+
+    # the fun starts here
+    for addr in range(0, MEM_SIZE, BLOCK_SIZE):
+        # sending the data
+        data = radio.get_mmap()[addr:addr + BLOCK_SIZE]
+
+        frame = _make_frame("WRIE", addr, BLOCK_SIZE, data)
+
+        _rawsend(radio, frame)
+
+        # receiving the response
+        ack = _rawrecv(radio, 1)
+        if ack != "\x06":
+            _exit_program_mode(radio)
+            msg = "Bad ack writing block 0x%04x" % addr
+            raise errors.RadioError(msg)
+
+        # UI Update
+        status.cur = addr / BLOCK_SIZE
+        status.msg = "Cloning to radio..."
+        radio.status_fn(status)
+
+    _exit_program_mode(radio)
+
+
+def model_match(cls, data):
+    """Match the opened/downloaded image to the correct version"""
+    rid = data[0x1C00:0x1C08]
+
+    if rid == cls.MODEL:
+        return True
+
+    return False
+
+
+def _split(rf, f1, f2):
+    """Returns False if the two freqs are in the same band (no split)
+    or True otherwise"""
+
+    # determine if the two freqs are in the same band
+    for low, high in rf.valid_bands:
+        if f1 >= low and f1 <= high and \
+                f2 >= low and f2 <= high:
+            # if the two freqs are on the same Band this is not a split
+            return False
+
+    # if you get here is because the freq pairs are split
+    return True
+
+
+ at directory.register
+class LT725UV(chirp_common.CloneModeRadio,
+              chirp_common.ExperimentalRadio):
+    """LUITON LT-725UV Radio"""
+    VENDOR = "LUITON"
+    MODEL = "LT-725UV"
+    MODES = ["NFM", "FM"]
+    TONES = chirp_common.TONES
+    DTCS_CODES = sorted(chirp_common.DTCS_CODES + [645])
+    NAME_LENGTH = 6
+    DTMF_CHARS = list("0123456789ABCD*#")
+
+    VALID_BANDS = [(136000000, 176000000),
+                   (400000000, 480000000)]
+
+    # valid chars on the LCD
+    VALID_CHARS = chirp_common.CHARSET_ALPHANUMERIC + \
+        "`{|}!\"#$%&'()*+,-./:;<=>?@[]^_"
+
+    @classmethod
+    def get_prompts(cls):
+        rp = chirp_common.RadioPrompts()
+        rp.experimental = \
+            ('The UV-50X3 driver is a beta version.\n'
+             '\n'
+             'Please save an unedited copy of your first successful\n'
+             'download to a CHIRP Radio Images(*.img) file.'
+             )
+        rp.pre_download = _(dedent("""\
+            Follow this instructions to download your info:
+
+            1 - Turn off your radio
+            2 - Connect your interface cable
+            3 - Turn on your radio
+            4 - Do the download of your radio data
+            """))
+        rp.pre_upload = _(dedent("""\
+            Follow this instructions to upload your info:
+
+            1 - Turn off your radio
+            2 - Connect your interface cable
+            3 - Turn on your radio
+            4 - Do the upload of your radio data
+            """))
+        return rp
+
+    def get_features(self):
+        rf = chirp_common.RadioFeatures()
+        rf.has_settings = True
+        rf.has_bank = False
+        rf.has_tuning_step = False
+        rf.can_odd_split = True
+        rf.has_name = True
+        rf.has_offset = True
+        rf.has_mode = True
+        rf.has_dtcs = True
+        rf.has_rx_dtcs = True
+        rf.has_dtcs_polarity = True
+        rf.has_ctone = True
+        rf.has_cross = True
+        rf.has_sub_devices = self.VARIANT == ""
+        rf.valid_modes = self.MODES
+        rf.valid_characters = self.VALID_CHARS
+        rf.valid_duplexes = ["", "-", "+", "split", "off"]
+        rf.valid_tmodes = ['', 'Tone', 'TSQL', 'DTCS', 'Cross']
+        rf.valid_cross_modes = [
+            "Tone->Tone",
+            "DTCS->",
+            "->DTCS",
+            "Tone->DTCS",
+            "DTCS->Tone",
+            "->Tone",
+            "DTCS->DTCS"]
+        rf.valid_skips = []
+        rf.valid_name_length = self.NAME_LENGTH
+        rf.valid_dtcs_codes = self.DTCS_CODES
+        rf.valid_bands = self.VALID_BANDS
+        rf.memory_bounds = (1, 128)
+        return rf
+
+    def get_sub_devices(self):
+        return [LT725UVUpper(self._mmap), LT725UVLower(self._mmap)]
+
+    def sync_in(self):
+        """Download from radio"""
+        try:
+            data = _download(self)
+        except errors.RadioError:
+            # Pass through any real errors we raise
+            raise
+        except:
+            # If anything unexpected happens, make sure we raise
+            # a RadioError and log the problem
+            LOG.exception('Unexpected error during download')
+            raise errors.RadioError('Unexpected error communicating '
+                                    'with the radio')
+        self._mmap = memmap.MemoryMap(data)
+        self.process_mmap()
+
+    def sync_out(self):
+        """Upload to radio"""
+        try:
+            _upload(self)
+        except:
+            # If anything unexpected happens, make sure we raise
+            # a RadioError and log the problem
+            LOG.exception('Unexpected error during upload')
+            raise errors.RadioError('Unexpected error communicating '
+                                    'with the radio')
+
+    def process_mmap(self):
+        """Process the mem map into the mem object"""
+        self._memobj = bitwise.parse(MEM_FORMAT, self._mmap)
+
+    def get_raw_memory(self, number):
+        return repr(self._memobj.memory[number - 1])
+
+    def _memory_obj(self, suffix=""):
+        return getattr(self._memobj, "%s_memory%s" % (self._vfo, suffix))
+
+    def _get_dcs(self, val):
+        return int(str(val)[2:-18])
+
+    def _set_dcs(self, val):
+        return int(str(val), 16)
+
+    def get_memory(self, number):
+        _mem = self._memory_obj()[number - 1]
+
+        mem = chirp_common.Memory()
+        mem.number = number
+
+        if _mem.get_raw()[0] == "\xff":
+            mem.empty = True
+            return mem
+
+        mem.freq = int(_mem.rxfreq) * 10
+
+        if _mem.txfreq == 0xFFFFFFFF:
+            # TX freq not set
+            mem.duplex = "off"
+            mem.offset = 0
+        elif int(_mem.rxfreq) == int(_mem.txfreq):
+            mem.duplex = ""
+            mem.offset = 0
+        elif _split(self.get_features(), mem.freq, int(_mem.txfreq) * 10):
+            mem.duplex = "split"
+            mem.offset = int(_mem.txfreq) * 10
+        else:
+            mem.duplex = int(_mem.rxfreq) > int(_mem.txfreq) and "-" or "+"
+            mem.offset = abs(int(_mem.rxfreq) - int(_mem.txfreq)) * 10
+
+        for char in _mem.name[:_mem.namelen]:
+            mem.name += chr(char)
+
+        dtcs_pol = ["N", "N"]
+
+        if _mem.rxtone == 0x3FFF:
+            rxmode = ""
+        elif _mem.is_rxdigtone == 0:
+            # ctcss
+            rxmode = "Tone"
+            mem.ctone = int(_mem.rxtone) / 10.0
+        else:
+            # digital
+            rxmode = "DTCS"
+            mem.rx_dtcs = self._get_dcs(_mem.rxtone)
+            if _mem.rxdtcs_pol == 1:
+                dtcs_pol[1] = "R"
+
+        if _mem.txtone == 0x3FFF:
+            txmode = ""
+        elif _mem.is_txdigtone == 0:
+            # ctcss
+            txmode = "Tone"
+            mem.rtone = int(_mem.txtone) / 10.0
+        else:
+            # digital
+            txmode = "DTCS"
+            mem.dtcs = self._get_dcs(_mem.txtone)
+            if _mem.txdtcs_pol == 1:
+                dtcs_pol[0] = "R"
+
+        if txmode == "Tone" and not rxmode:
+            mem.tmode = "Tone"
+        elif txmode == rxmode and txmode == "Tone" and mem.rtone == mem.ctone:
+            mem.tmode = "TSQL"
+        elif txmode == rxmode and txmode == "DTCS" and mem.dtcs == mem.rx_dtcs:
+            mem.tmode = "DTCS"
+        elif rxmode or txmode:
+            mem.tmode = "Cross"
+            mem.cross_mode = "%s->%s" % (txmode, rxmode)
+
+        mem.dtcs_polarity = "".join(dtcs_pol)
+
+        mem.mode = self.MODES[_mem.wide]
+
+        # Extra
+        mem.extra = RadioSettingGroup("extra", "Extra")
+
+        if _mem.recvmode == 0xFF:
+            val = 0x00
+        else:
+            val = _mem.recvmode
+        recvmode = RadioSetting("recvmode", "Receiving mode",
+                                 RadioSettingValueList(LIST_RECVMODE,
+                                     LIST_RECVMODE[val]))
+        mem.extra.append(recvmode)
+
+        if _mem.botsignal == 0xFF:
+            val = 0x00
+        else:
+            val = _mem.botsignal
+        botsignal = RadioSetting("botsignal", "Launch signaling",
+                                 RadioSettingValueList(LIST_SIGNAL,
+                                     LIST_SIGNAL[val]))
+        mem.extra.append(botsignal)
+
+        if _mem.eotsignal == 0xFF:
+            val = 0x00
+        else:
+            val = _mem.eotsignal
+        eotsignal = RadioSetting("eotsignal", "Transmit end signaling",
+                                 RadioSettingValueList(LIST_SIGNAL,
+                                     LIST_SIGNAL[val]))
+        mem.extra.append(eotsignal)
+
+        compandor = RadioSetting("compandor", "Compandor",
+                                 RadioSettingValueBoolean(bool(_mem.compandor)))
+        mem.extra.append(compandor)
+
+        scrambler = RadioSetting("scrambler", "Scrambler",
+                                 RadioSettingValueBoolean(bool(_mem.scrambler)))
+        mem.extra.append(scrambler)
+
+        return mem
+
+    def set_memory(self, mem):
+        _mem = self._memory_obj()[mem.number - 1]
+
+        if mem.empty:
+            _mem.set_raw("\xff" * 24)
+            _mem.namelen = 0
+            return
+
+        _mem.set_raw("\xFF" * 15 + "\x00\x00" + "\xFF" * 7)
+
+        _mem.rxfreq = mem.freq / 10
+        if mem.duplex == "off":
+            _mem.txfreq = 0xFFFFFFFF
+        elif mem.duplex == "split":
+            _mem.txfreq = mem.offset / 10
+        elif mem.duplex == "+":
+            _mem.txfreq = (mem.freq + mem.offset) / 10
+        elif mem.duplex == "-":
+            _mem.txfreq = (mem.freq - mem.offset) / 10
+        else:
+            _mem.txfreq = mem.freq / 10
+
+        _mem.namelen = len(mem.name)
+        _namelength = self.get_features().valid_name_length
+        for i in range(_namelength):
+            try:
+                _mem.name[i] = ord(mem.name[i])
+            except IndexError:
+                _mem.name[i] = 0xFF
+
+        rxmode = ""
+        txmode = ""
+
+        if mem.tmode == "Tone":
+            txmode = "Tone"
+        elif mem.tmode == "TSQL":
+            rxmode = "Tone"
+            txmode = "TSQL"
+        elif mem.tmode == "DTCS":
+            rxmode = "DTCSSQL"
+            txmode = "DTCS"
+        elif mem.tmode == "Cross":
+            txmode, rxmode = mem.cross_mode.split("->", 1)
+
+        if rxmode == "":
+            _mem.rxdtcs_pol = 1
+            _mem.is_rxdigtone = 1
+            _mem.rxtone = 0x3FFF
+        elif rxmode == "Tone":
+            _mem.rxdtcs_pol = 0
+            _mem.is_rxdigtone = 0
+            _mem.rxtone = int(mem.ctone * 10)
+        elif rxmode == "DTCSSQL":
+            _mem.rxdtcs_pol = 1 if mem.dtcs_polarity[1] == "R" else 0
+            _mem.is_rxdigtone = 1
+            _mem.rxtone = self._set_dcs(mem.dtcs)
+        elif rxmode == "DTCS":
+            _mem.rxdtcs_pol = 1 if mem.dtcs_polarity[1] == "R" else 0
+            _mem.is_rxdigtone = 1
+            _mem.rxtone = self._set_dcs(mem.rx_dtcs)
+
+        if txmode == "":
+            _mem.txdtcs_pol = 1
+            _mem.is_txdigtone = 1
+            _mem.txtone = 0x3FFF
+        elif txmode == "Tone":
+            _mem.txdtcs_pol = 0
+            _mem.is_txdigtone = 0
+            _mem.txtone = int(mem.rtone * 10)
+        elif txmode == "TSQL":
+            _mem.txdtcs_pol = 0
+            _mem.is_txdigtone = 0
+            _mem.txtone = int(mem.ctone * 10)
+        elif txmode == "DTCS":
+            _mem.txdtcs_pol = 1 if mem.dtcs_polarity[0] == "R" else 0
+            _mem.is_txdigtone = 1
+            _mem.txtone = self._set_dcs(mem.dtcs)
+
+        _mem.wide = self.MODES.index(mem.mode)
+
+        # extra settings
+        for setting in mem.extra:
+            setattr(_mem, setting.get_name(), setting.value)
+
+    def get_settings(self):
+        """Translate the bit in the mem_struct into settings in the UI"""
+        _mem = self._memobj
+        basic = RadioSettingGroup("basic", "Basic Settings")
+        top = RadioSettings(basic)
+
+        # Basic
+
+        volume = RadioSetting("settings.volume", "Volume",
+                              RadioSettingValueInteger(0, 20,
+                                  _mem.settings.volume))
+        basic.append(volume)
+
+        powera = RadioSetting("upper.vfoa.power", "Power (Upper)",
+                              RadioSettingValueList(LIST_POWER, LIST_POWER[
+                                  _mem.upper.vfoa.power]))
+        basic.append(powera)
+
+        powerb = RadioSetting("lower.vfob.power", "Power (Lower)",
+                              RadioSettingValueList(LIST_POWER, LIST_POWER[
+                                  _mem.lower.vfob.power]))
+        basic.append(powerb)
+
+        wtled = RadioSetting("settings.wtled", "Standby LED Color",
+                             RadioSettingValueList(LIST_COLOR, LIST_COLOR[
+                                 _mem.settings.wtled]))
+        basic.append(wtled)
+
+        rxled = RadioSetting("settings.rxled", "RX LED Color",
+                             RadioSettingValueList(LIST_COLOR, LIST_COLOR[
+                                 _mem.settings.rxled]))
+        basic.append(rxled)
+
+        txled = RadioSetting("settings.txled", "TX LED Color",
+                             RadioSettingValueList(LIST_COLOR, LIST_COLOR[
+                                 _mem.settings.txled]))
+        basic.append(txled)
+
+        ledsw = RadioSetting("settings.ledsw", "Back light mode",
+                             RadioSettingValueList(LIST_LEDSW, LIST_LEDSW[
+                                 _mem.settings.ledsw]))
+        basic.append(ledsw)
+
+        beep = RadioSetting("settings.beep", "Beep",
+                            RadioSettingValueBoolean(bool(_mem.settings.beep)))
+        basic.append(beep)
+
+        ring = RadioSetting("settings.ring", "Ring",
+                            RadioSettingValueList(LIST_RING, LIST_RING[
+                                _mem.settings.ring]))
+        basic.append(ring)
+
+        bcl = RadioSetting("settings.bcl", "Busy channel lockout",
+                           RadioSettingValueBoolean(bool(_mem.settings.bcl)))
+        basic.append(bcl)
+
+        tot = RadioSetting("settings.tot", "Timeout Timer",
+                           RadioSettingValueList(LIST_TIMEOUT, LIST_TIMEOUT[
+                               _mem.settings.tot]))
+        basic.append(tot)
+
+        if _mem.upper.vfoa.sql == 0xFF:
+            val = 0x04
+        else:
+            val = _mem.upper.vfoa.sql
+        sqla = RadioSetting("upper.vfoa.sql", "Squelch (Upper)",
+                            RadioSettingValueInteger(0, 9, val))
+        basic.append(sqla)
+
+        if _mem.lower.vfob.sql == 0xFF:
+            val = 0x04
+        else:
+            val = _mem.lower.vfob.sql
+        sqlb = RadioSetting("lower.vfob.sql", "Squelch (Lower)",
+                            RadioSettingValueInteger(0, 9, val))
+        basic.append(sqlb)
+
+        return top
+
+    def set_settings(self, settings):
+        _settings = self._memobj.settings
+        _mem = self._memobj
+        for element in settings:
+            if not isinstance(element, RadioSetting):
+                self.set_settings(element)
+                continue
+            else:
+                try:
+                    name = element.get_name()
+                    if "." in name:
+                        bits = name.split(".")
+                        obj = self._memobj
+                        for bit in bits[:-1]:
+                            if "/" in bit:
+                                bit, index = bit.split("/", 1)
+                                index = int(index)
+                                obj = getattr(obj, bit)[index]
+                            else:
+                                obj = getattr(obj, bit)
+                        setting = bits[-1]
+                    else:
+                        obj = _settings
+                        setting = element.get_name()
+
+                    if element.has_apply_callback():
+                        LOG.debug("Using apply callback")
+                        element.run_apply_callback()
+                    elif element.value.get_mutable():
+                        LOG.debug("Setting %s = %s" % (setting, element.value))
+                        setattr(obj, setting, element.value)
+                except Exception, e:
+                    LOG.debug(element.get_name())
+                    raise
+
+
+    @classmethod
+    def match_model(cls, filedata, filename):
+        match_size = False
+        match_model = False
+
+        # testing the file data size
+        if len(filedata) == MEM_SIZE + 8:
+            match_size = True
+
+        # testing the firmware model fingerprint
+        match_model = model_match(cls, filedata)
+
+        if match_size and match_model:
+            return True
+        else:
+            return False
+
+
+class LT725UVUpper(LT725UV):
+    VARIANT = "Upper"
+    _vfo = "upper"
+
+
+class LT725UVLower(LT725UV):
+    VARIANT = "Lower"
+    _vfo = "lower"



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