CHIRP

# Copyright 2019 Pavel Milanes, CO7WT <pavelmc@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 struct

import os

import logging

import time

from time import sleep

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

from textwrap import dedent

LOG = logging.getLogger(__name__)

### SAMPLE MEM DUMP as sent from the radios

# FTL-1011

#0x000000  52 f0 16 90 04 08 38 c0  00 00 00 01 00 00 00 ff  |R.....8.........|

#0x000010  20 f1 00 20 00 00 00 20  04 47 25 04 47 25 00 00  | .. ... .G%.G%..|

# FTL-2011

#0x000000: 50 90 21 40 04 80 fc 40  00 00 00 01 00 00 00 ff  |P.!@...@........|

#0x000010: 20 f1 00 0b 00 00 00 0b  14 51 70 14 45 70 00 00  |.........Qp.Ep..|

MEM_FORMAT = """

#seekto 0x000;

u8 rid[2];              // Radio Identification?

bbcd if[2];             // Radio internal IF (21.40 Mhz)

u8 chcount;             // how many channels are programmed

u8 unknownB1:1,

   unknownB2:1,

   unknownB3:1,

   monitor:1,           // monitor disable; 1 = disabled

   offhook:1,           // offhook disable; 1 = disabled

   unknownB6:1,

   unknownB7:1,

   unknownB8:1;

u8 TOT:4,               // TOT in 30 sec steps, 0 = disable / 15 = 7.5min

   unknownB:4;

#seekto 0x010;

struct {

  u8 empty:1,           // channel is empty = 1

     notx:1,            // TX inhibit (TX freq is ignored)

     tot:1,             // TOT: 0 =  disabled / 1 = enabled

     low:1,             // low power; 1 = low / 0 = high

     busylock:1,        // PTT carrier lockout on busy channel

     unknownA5:1,

     unknownA6:1,

     unknownA7:1;

  u8 chname;

  u8 rx_tone[2];      // empty value is \x00\x0B / disabled is \x00\x00

  u8 unknown4;

  u8 unknown5;

  u8 tx_tone[2];      // empty value is \x00\x0B / disabled is \x00\x00

  bbcd rx_freq[3];      // RX freq

  bbcd tx_freq[3];      // TX freq

  u8 unknownA[2];

} memory[24];

#seekto 0x0190;

char filename[11];

#seekto 0x19C;

u8 checksum;

"""

MEM_SIZE = 0x019C

DTCS_CODES = chirp_common.DTCS_CODES

# make a copy of the tones, is not funny to work with this directly

TONES = list(chirp_common.TONES)

# this old radios has not the full tone ranges in CST

invalid_tones = (

    69.3,

    159.8,

    165.5,

    171.3,

    177.3,

    183.5,

    189.9,

    196.6,

    199.5,

    206.5,

    229.1,

    245.1)

# remove invalid tones

for tone in invalid_tones:

    try:

        TONES.remove(tone)

    except:

        pass

def _set_serial(radio):

    """Set the serial protocol settings"""

    radio.pipe.timeout = 10

    radio.pipe.parity = "N"

    radio.pipe.baudrate = 9600

def _checksum(data):

    """the radio block checksum algorithm"""

    cs = 0

    for byte in data:

            cs += ord(byte)

    return cs % 256

def _update_cs(radio):

    """Update the checksum on the mmap"""

    payload = str(radio.get_mmap())[:-1]

    cs = _checksum(payload)

    radio._mmap[MEM_SIZE - 1] = cs

def _do_download(radio):

    """ The download function """

    # Get the whole 413 bytes (0x019D) bytes one at a time with plenty of time

    # to get to the user's pace

    # set serial discipline

    _set_serial(radio)

    # UI progress

    status = chirp_common.Status()

    status.cur = 0

    status.max = MEM_SIZE

    status.msg = " Press A to clone. "

    radio.status_fn(status)

    data = ""

    for i in range(0, MEM_SIZE):

        a = radio.pipe.read(1)

        if len(a) == 0:

            # error, no received data

            if len(data) != 0:

                # received some data, not the complete stream

                msg = "Just %02i bytes of the %02i received, try again." % \

                    (len(data), MEM_SIZE)

            else:

                # timeout, please retry

                msg = "No data received, try again."

            raise errors.RadioError(msg)

        data += a

        # UI Update

        status.cur = len(data)

        radio.status_fn(status)

    if len(data) != MEM_SIZE:

        msg = "Incomplete data, we need %02i but got %02i bytes." % \

            (MEM_SIZE, len(data))

        raise errors.RadioError(msg)

    if ord(data[-1]) != _checksum(data[:-1]):

        msg = "Bad checksum, please try again."

        raise errors.RadioError(msg)

    return data

def _do_upload(radio):

    """The upload function"""

    # set serial discipline

    _set_serial(radio)

    # UI progress

    status = chirp_common.Status()

    # 10 seconds timeout

    status.cur = 0

    status.max = 100

    status.msg = " Quick, press MON on the radio to start. "

    radio.status_fn(status)

    for byte in range(0,100):

        status.cur = byte

        radio.status_fn(status)

        time.sleep(0.1)

    # real upload if user don't cancel the timeout

    status.cur = 0

    status.max = MEM_SIZE

    status.msg = " Cloning to radio... "

    radio.status_fn(status)

    # send data

    data = str(radio.get_mmap())

    # this radio has a trick, the EEPROM is an ancient SPI one, so it needs

    # some time to write, so we send every byte and then allow

    # a 0.01 seg to complete the write from the MCU to the SPI EEPROM

    c = 0

    for byte in data:

        radio.pipe.write(byte)

        time.sleep(0.01)

        # UI Update

        status.cur = c

        radio.status_fn(status)

        # counter

        c = c + 1

def _model_match(cls, data):

    """Use a experimental guess to determine if the radio you just

    downloaded or the img you opened is for this model"""

    # It's hard to tell when this radio is really this radio.

    # I use the first 4 bytes, that appears to be the ID and FI settings

    LOG.debug("Drivers's ID string:")

    LOG.debug(util.hexprint(data[0:4]))

    LOG.debug("Radio's ID string:")

    LOG.debug(cls.finger)

    fp = data[0:4]

    if fp == cls.finger:

        return True

    else:

        return False

def bcd_to_int(data):

    """Convert an array of bcdDataElement like \x12

    into an int like 12"""

    value = 0

    a = (data & 0xF0) >> 4

    b = data & 0x0F

    value = (a * 10) + b

    return value

def int_to_bcd(data):

    """Convert a int like 94 to 0x94"""

    data, lsb = divmod(data, 10)

    data, msb = divmod(data, 10)

    res = (msb << 4) + lsb

    return res

class ftlx011(chirp_common.CloneModeRadio, chirp_common.ExperimentalRadio):

    """Vertex FTL1011/2011/7011 4/8/12/24 channels"""

    VENDOR = "Vertex Standard"

    _memsize = MEM_SIZE

    _upper = 0

    _range = []

    finger = ""

    @classmethod

    def get_prompts(cls):

        rp = chirp_common.RadioPrompts()

        rp.experimental = \

            ('This is a experimental driver, use it on your own risk.\n'

             '\n'

             'By now only the 5.0 khz step models are supported. The 6.25 '

             'kHz steps models will be ignored as we do not have one of '

             'these to process and support.\n'

             )

        rp.pre_download = _(dedent("""\

            Please follow this steps carefully:

            1 - Turn on your radio

            2 - Connect the interface cable to your radio.

            3 - Click the button on this window to start download

                (Radio will beep and led will flash)

            4 - Then press the "A" button in your radio to start cloning.

                (At the end radio will beep)

            """))

        rp.pre_upload = _(dedent("""\

            Please follow this steps carefully:

            1 - Turn on your radio

            2 - Connect the interface cable to your radio

            3 - Click the button on this window to start download

                (you may see another dialog, click ok)

            4 - Radio will beep and led will flash

            5 - You will get a 10 seconds timeout to press "MON" before

                data upload start

            6 - If all goes right radio will beep at end.

            After cloning remove the cable and power cycle your radio to

            get into normal mode.

            """))

        return rp

    def get_features(self):

        """Return information about this radio's features"""

        rf = chirp_common.RadioFeatures()

        rf.has_settings = False

        rf.has_bank = False

        rf.has_tuning_step = False

        rf.has_name = False

        #rf.valid_characters = VALID_CHARS

        #rf.valid_name_length = 2

        rf.has_offset = True

        rf.has_mode = True

        rf.has_dtcs = True

        rf.has_rx_dtcs = True

        rf.has_dtcs_polarity = False

        rf.has_ctone = True

        rf.has_cross = True

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

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

        rf.valid_cross_modes = [

            "Tone->Tone",

            "DTCS->DTCS",

            "DTCS->",

            "->DTCS"]

        rf.valid_dtcs_codes = DTCS_CODES

        rf.valid_skips = []

        rf.valid_modes = ["FM"]

        #rf.valid_tuning_steps = [5.0]

        rf.valid_bands = [self._range]

        rf.memory_bounds = (1, self._upper)

        return rf

    def sync_in(self):

        """Do a download of the radio eeprom"""

        try:

            data = _do_download(self)

        except Exception, e:

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

        # match model

        if _model_match(self, data) is False:

            raise errors.RadioError("Incorrect radio model")

        self._mmap = memmap.MemoryMap(data)

        self.process_mmap()

        # set the channel count from the radio eeprom

        self._upper = int(ord(data[4]))

    def sync_out(self):

        """Do an upload to the radio eeprom"""

        # update checksum

        _update_cs(self)

        # sanity check, match model

        data = str(self.get_mmap())

        if len(data) != MEM_SIZE:

            raise errors.RadioError("Wrong radio image? Size miss match.")

        if _model_match(self, data) is False:

            raise errors.RadioError("Wrong image? Fingerprint miss match")

        try:

            _do_upload(self)

        except Exception, e:

            msg = "Failed to communicate with radio:\n%s" % e

            raise errors.RadioError(msg)

    def process_mmap(self):

        """Process the memory object"""

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

    def get_raw_memory(self, number):

        """Return a raw representation of the memory object"""

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

    def _decode_tone(self, mem, rx=True):

        """Parse the tone data to decode from mem tones are encodded like this

        CTCS: mapped [0x80...0xa5] = [67.0...250.3]

        DTCS: mixed  [0x88, 0x23] last is BCD and first is the 100 power - 88

        It return: ((''|DTCS|Tone), Value (None|###), None)"""

        mode = ""

        tone = None

        # get the tone depending of rx or tx

        if rx:

            t = mem.rx_tone

        else:

            t = mem.tx_tone

        tMSB = t[0]

        tLSB = t[1]

        print ("==>> %s, %i, %i" % (t, tMSB, tLSB))

        # no tone at all

        if (tMSB == 0 and tLSB < 128):

            print("No tone")

            return ('', None, None)

        # extract the tone info

        if tMSB == 0x00:

            # CTCS

            mode = "Tone"

            try:

                tone = TONES[tLSB - 128]

                print ("  >> %i" % tone)

            except IndexError:

                LOG.debug("Error decoding a CTCS tone")

                pass

        else:

            # DTCS

            mode = "DTCS"

            try:

                tone = ((tMSB - 0x88) * 100) + bcd_to_int(tLSB)

                print("  >> %i" % tone)

            except IndexError:

                LOG.debug("Error decoding a DTCS tone")

                pass

        return (mode, tone, None)

    def _encode_tone(self, mem, mode, value, pol, rx=True):

        """Parse the tone data to encode from UI to mem

        CTCS: mapped [0x80...0xa5] = [67.0...250.3]

        DTCS: mixed  [0x88, 0x23] last is BCD and first is the 100 power - 88

        """

        # array to pass

        tone = [0x00, 0x00]

        # which mod

        if mode == "DTCS":

            tone[0] = int(value / 100) + 0x88

            tone[1] = int_to_bcd(value % 100)

        if mode == "Tone":

            #CTCS

            tone[1] = TONES.index(value) + 128

        # set it

        if rx:

            mem.rx_tone = tone

        else:

            mem.tx_tone = tone

    def get_memory(self, number):

        """Extract a memory object from the memory map"""

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

        _mem = self._memobj.memory[number - 1]

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

        mem = chirp_common.Memory()

        # number

        mem.number = number

        # empty

        if bool(_mem.empty) is True:

            mem.empty = True

            return mem

        # rx freq

        mem.freq = int(_mem.rx_freq) * 1000

        # checking if tx freq is disabled

        if bool(_mem.notx) is True:

            mem.duplex = "off"

            mem.offset = 0

        else:

            tx = int(_mem.tx_freq) * 1000

            if tx == mem.freq:

                mem.offset = 0

                mem.duplex = ""

            else:

                mem.duplex = mem.freq > tx and "-" or "+"

                mem.offset = abs(tx - mem.freq)

        # tone data

        rxtone = txtone = None

        rxtone = self._decode_tone(_mem)

        txtone = self._decode_tone(_mem, False)

        chirp_common.split_tone_decode(mem, txtone, rxtone)

        # this radio has a primitive mode to show the channel number on a 7-segment

        # two digit LCD, we will use channel number

        # we will use a trick to show the numbers < 10 wit a space not a zero in front

        chname = int_to_bcd(mem.number)

        if mem.number < 10:

            # convert to F# as BCD

            chname = mem.number + 240

        _mem.chname = chname

        # return mem

        return mem

    def set_memory(self, mem):

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

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

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

        _mem = self._memobj.memory[mem.number - 1]

        # Empty memory

        if mem.empty:

            _mem.empty = True

            _mem.rx_freq = _mem.tx_freq = 0

            return

        # freq rx

        _mem.rx_freq = mem.freq / 1000

        # freq tx

        if mem.duplex == "+":

            _mem.tx_freq = (mem.freq + mem.offset) / 1000

        elif mem.duplex == "-":

            _mem.tx_freq = (mem.freq - mem.offset) / 1000

        elif mem.duplex == "off":

            _mem.notx = 1

            _mem.tx_freq = _mem.rx_freq

        else:

            _mem.tx_freq = mem.freq / 1000

        # tone data

        ((txmode, txtone, txpol), (rxmode, rxtone, rxpol)) = \

            chirp_common.split_tone_encode(mem)

        # validate tone data from here

        if rxmode == "Tone" and rxtone in invalid_tones:

            msg = "The tone %shz is not valid for this radio" % rxtone

            raise errors.UnsupportedToneError(msg)

        if txmode == "Tone" and txtone in invalid_tones:

            msg = "The tone %shz is not valid for this radio" % txtone

            raise errors.UnsupportedToneError(msg)

        if rxmode == "DTCS" and rxtone not in DTCS_CODES:

            msg = "The digital tone %s is not valid for this radio" % rxtone

            raise errors.UnsupportedToneError(msg)

        if txmode == "DTCS" and txtone not in DTCS_CODES:

            msg = "The digital tone %s is not valid for this radio" % txtone

            raise errors.UnsupportedToneError(msg)

        self._encode_tone(_mem, rxmode, rxtone, rxpol)

        self._encode_tone(_mem, txmode, txtone, txpol, False)

        # this radio has a primitive mode to show the channel number on a 7-segment

        # two digit LCD, we will use channel number

        # we will use a trick to show the numbers < 10 wit a space not a zero in front

        chname = int_to_bcd(mem.number)

        if mem.number < 10:

            # convert to F# as BCD

            chname = mem.number + 240

        _mem.chname = chname

        return mem

    @classmethod

    def match_model(cls, filedata, filename):

        match_size = False

        match_model = False

        # testing the file data size

        if len(filedata) == cls._memsize:

            match_size = True

            print("Comp: %i file / %i memzise" % (len(filedata), cls._memsize) )

        # testing the firmware fingerprint, this experimental

        match_model = _model_match(cls, filedata)

        if match_size and match_model:

            return True

        else:

            return False

@directory.register

class ftl1011(ftlx011):

    """Vertex FTL1011"""

    MODEL = "FTL-1011"

    _memsize = MEM_SIZE

    _upper = 4

    _range = [44000000, 56000000]

    finger = "\x52\xf0\x16\x90"

@directory.register

class ftl2011(ftlx011):

    """Vertex FTL2011"""

    MODEL = "FTL-2011"

    _memsize = MEM_SIZE

    _upper = 24

    _range = [134000000, 174000000]

    finger = "\x50\x90\x21\x40"