comm_n0183_output.cpp

/***************************************************************************
 *
 * Project:  OpenCPN
 * Purpose:  NMEA Data Multiplexer Object
 * Author:   David Register
 *
 ***************************************************************************
 *   Copyright (C) 2010 by David S. Register                               *
 *                                                                         *
 *   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, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,  USA.         *
 **************************************************************************/
 
// For compilers that support precompilation, includes "wx.h".
#include <wx/wxprec.h>
 
#ifndef WX_PRECOMP  // precompiled headers
#include <wx/wx.h>
#endif
 
#include "config.h"
 
#include <wx/jsonreader.h>
#include <wx/jsonval.h>
#include <wx/jsonwriter.h>
#include <wx/tokenzr.h>
 
#include "model/comm_driver.h"
#include "model/comm_drv_factory.h"
#include "model/comm_drv_n0183_android_bt.h"
#include "model/comm_drv_n0183_net.h"
#include "model/comm_drv_n0183_serial.h"
#include "model/comm_drv_registry.h"
#include "model/comm_n0183_output.h"
#include "model/config_vars.h"
#include "model/conn_params.h"
#include "model/logger.h"
#include "model/nmea_ctx_factory.h"
#include "model/nmea_log.h"
#include "model/route.h"
#include "nmea0183.h"
 
#ifdef USE_GARMINHOST
#include "model/garmin_wrapper.h"
#endif
 
void LogBroadcastOutputMessageColor(const std::shared_ptr<const NavMsg>& msg,
                                    NavmsgStatus ns, NmeaLog* nmea_log) {
  if (nmea_log->IsActive()) {
    ns.direction = NavmsgStatus::Direction::kOutput;
    Logline ll(msg, ns);
    nmea_log->Add(ll);
  }
}
 
void BroadcastNMEA0183Message(const wxString& msg, NmeaLog* nmea_log,
                              EventVar& on_msg_sent) {
  auto& registry = CommDriverRegistry::GetInstance();
  const std::vector<std::unique_ptr<AbstractCommDriver>>& drivers =
      registry.GetDrivers();
 
  for (auto& driver : drivers) {
    if (driver->bus == NavAddr::Bus::N0183) {
      ConnectionParams params;
      auto drv_serial = dynamic_cast<CommDriverN0183Serial*>(driver.get());
      if (drv_serial) {
        params = drv_serial->GetParams();
      } else {
        auto drv_net = dynamic_cast<CommDriverN0183Net*>(driver.get());
        if (drv_net) {
          params = drv_net->GetParams();
        }
#ifdef __ANDROID__
        else {
          auto drv_bluetooth =
              dynamic_cast<CommDriverN0183AndroidBT*>(driver.get());
          if (drv_bluetooth) {
            params = drv_bluetooth->GetParams();
          }
        }
#endif
      }
 
      if (params.IOSelect == DS_TYPE_INPUT_OUTPUT ||
          params.IOSelect == DS_TYPE_OUTPUT) {
        std::string id = msg.ToStdString().substr(1, 5);
        auto msg_out = std::make_shared<Nmea0183Msg>(
            id, msg.ToStdString(), std::make_shared<NavAddr>());
        NavmsgStatus ns;
        ns.direction = NavmsgStatus::Direction::kOutput;
        if (params.SentencePassesFilter(msg, FILTER_OUTPUT)) {
          bool xmit_ok =
              driver->SendMessage(msg_out, std::make_shared<NavAddr>());
          if (!xmit_ok) ns.status = NavmsgStatus::State::kTxError;
        } else {
          ns.accepted = NavmsgStatus::Accepted::kFilteredDropped;
        }
        LogBroadcastOutputMessageColor(msg_out, ns, nmea_log);
      }
    }
  }
  // Send to plugins
  on_msg_sent.Notify(msg.ToStdString());
}
 
bool CreateOutputConnection(const wxString& com_name,
                            ConnectionParams& params_save, bool& btempStream,
                            bool& b_restoreStream, N0183DlgCtx dlg_ctx,
                            bool bGarminIn) {
  AbstractCommDriver* driver(nullptr);
  auto& registry = CommDriverRegistry::GetInstance();
  const std::vector<DriverPtr>& drivers = registry.GetDrivers();
 
  int baud = 0;
  wxString comx;
  bool bGarmin = false;
  if (com_name.Lower().StartsWith("serial")) {
    comx = com_name.AfterFirst(':');  // strip "Serial:"
    comx =
        comx.BeforeFirst(' ');  // strip off any description provided by Windows
    DriverPtr& old_driver = FindDriver(drivers, comx.ToStdString());
    wxLogDebug("Looking for old stream %s", com_name);
 
    if (old_driver) {
      auto drv_serial_n0183 =
          dynamic_cast<CommDriverN0183Serial*>(old_driver.get());
      if (drv_serial_n0183) {
        params_save = drv_serial_n0183->GetParams();
        baud = params_save.Baudrate;
        bGarmin = params_save.Garmin;
        drv_serial_n0183->Close();  // Fast close
      }
      registry.Deactivate(old_driver);
 
      b_restoreStream = true;
    }
 
    if (baud == 0) baud = 4800;
  }
  if (com_name.Lower().StartsWith("serial")) {
    ConnectionParams cp;
    cp.Type = SERIAL;
    cp.SetPortStr(comx);
    cp.Baudrate = baud;
    cp.Garmin = bGarminIn || bGarmin;
    cp.IOSelect = DS_TYPE_OUTPUT;
 
    MakeCommDriver(&cp);
    btempStream = true;
 
#ifdef __ANDROID__
    wxMilliSleep(1000);
#else
    auto drv_serial_n0183 = dynamic_cast<CommDriverN0183Serial*>(driver);
    if (drv_serial_n0183) {
      if ((wxNOT_FOUND != com_name.Upper().Find("USB")) &&
          (wxNOT_FOUND != com_name.Upper().Find("GARMIN"))) {
        //  Wait up to 1 seconds for serial Driver secondary thread to come up
        int timeout = 0;
        while (!drv_serial_n0183->IsGarminThreadActive() && (timeout < 50)) {
          wxMilliSleep(100);
          wxYield();
          timeout++;
        }
 
        if (!drv_serial_n0183->IsGarminThreadActive()) {
          MESSAGE_LOG << "-->GPS Port:" << com_name
                      << " ...Could not be opened for writing";
        }
      } else {
        //  Wait up to 1 seconds for serial Driver secondary thread to come up
        int timeout = 0;
        while (!drv_serial_n0183->IsSecThreadActive() && (timeout < 50)) {
          wxMilliSleep(100);
          timeout++;
        }
 
        if (!drv_serial_n0183->IsSecThreadActive()) {
          MESSAGE_LOG << "-->GPS Port:" << com_name
                      << " ...Could not be opened for writing";
        }
      }
    }
#endif
  } else
    driver = FindDriver(drivers, com_name.ToStdString()).get();
 
  if (com_name.Find("Bluetooth") != wxNOT_FOUND) {
    wxString comm_addr = com_name.AfterFirst(';');
 
    driver = FindDriver(drivers, comm_addr.ToStdString()).get();
    if (!driver) {
      // Force Android Bluetooth to use only already enabled driver
      return false;
    }
  } else if (com_name.Lower().StartsWith("udp") ||
             com_name.Lower().StartsWith("tcp")) {
    CommDriverN0183Net* drv_net_n0183(nullptr);
    if (!driver) {
      NetworkProtocol protocol = UDP;
      if (com_name.Lower().StartsWith("tcp")) protocol = TCP;
      wxStringTokenizer tkz(com_name, ":");
      wxString token = tkz.GetNextToken();
      wxString address = tkz.GetNextToken();
      token = tkz.GetNextToken();
      long port;
      token.ToLong(&port);
 
      ConnectionParams cp;
      cp.Type = NETWORK;
      cp.NetProtocol = protocol;
      cp.NetworkAddress = address;
      cp.NetworkPort = port;
      cp.IOSelect = DS_TYPE_INPUT_OUTPUT;
 
      MakeCommDriver(&cp);
      auto& me =
          FindDriver(drivers, cp.GetStrippedDSPort(), cp.GetLastCommProtocol());
      driver = me.get();
      btempStream = true;
    }
    drv_net_n0183 = dynamic_cast<CommDriverN0183Net*>(driver);
 
    if (com_name.Lower().StartsWith("tcp")) {
      // new tcp connections must wait for connect
      std::string msg(_("Connecting to "));
      msg += com_name;
      dlg_ctx.set_message(msg);
      dlg_ctx.pulse();
 
      if (drv_net_n0183) {
        int loopCount = 10;  // seconds
        bool bconnected;
        for (bconnected = false; !bconnected && (loopCount > 0); loopCount--) {
          if (drv_net_n0183->GetSock()->IsConnected()) {
            bconnected = true;
            break;
          }
          dlg_ctx.pulse();
          wxYield();
          wxSleep(1);
        }
        if (bconnected) {
          msg = _("Connected to ");
          msg += com_name;
          dlg_ctx.set_message(msg);
        } else {
          if (btempStream) {
            auto& me = FindDriver(drivers, driver->iface, driver->bus);
            registry.Deactivate(me);
          }
          return 0;
        }
      }
    }
  }
  return driver != nullptr;
}
 
int PrepareOutputChannel(const wxString& com_name, N0183DlgCtx dlg_ctx,
                         ConnectionParams& params_save, bool& b_restoreStream,
                         bool& btempStream) {
  int ret_val = 0;
  auto& registry = CommDriverRegistry::GetInstance();
 
  // Find any existing(i.e. open) serial com port with the same name,
  // and query its parameters.
  const std::vector<DriverPtr>& drivers = registry.GetDrivers();
  bool is_garmin_serial = false;
  CommDriverN0183Serial* drv_serial_n0183(nullptr);
 
  if (com_name.Lower().StartsWith("serial")) {
    wxString comx;
    comx = com_name.AfterFirst(':');  // strip "Serial: + windows description
    comx = comx.BeforeFirst(' ');
    DriverPtr& existing_driver = FindDriver(drivers, comx.ToStdString());
    wxLogDebug("Looking for old stream %s", com_name);
 
    if (existing_driver) {
      drv_serial_n0183 =
          dynamic_cast<CommDriverN0183Serial*>(existing_driver.get());
      if (drv_serial_n0183) {
        is_garmin_serial = drv_serial_n0183->GetParams().Garmin;
      }
    }
  }
 
  //  Special case for Garmin serial driver that is currently active
  //  We shall deactivate the current driver, and allow the self-contained
  //  Garmin stack to handle the object upload
  //  Also, save the driver's state, and mark for re-activation
 
  if (is_garmin_serial) {
    params_save = drv_serial_n0183->GetParams();
    b_restoreStream = true;
    drv_serial_n0183->Close();  // Fast close
    auto& me =
        FindDriver(drivers, drv_serial_n0183->GetParams().GetStrippedDSPort(),
                   drv_serial_n0183->GetParams().GetCommProtocol());
    registry.Deactivate(me);
    btempStream = true;
  }
  bool conn_ok =
      CreateOutputConnection(com_name, params_save, btempStream,
                             b_restoreStream, dlg_ctx, is_garmin_serial);
  if (!conn_ok) return 1;
 
#ifdef xUSE_GARMINHOST
#ifdef __WXMSW__
  if (com_name.Upper().Matches("*GARMIN*"))  // Garmin USB Mode
  {
    //        if(m_pdevmon)
    //            m_pdevmon->StopIOThread(true);
 
    auto drv_n0183_serial = dynamic_cast<CommDriverN0183Serial*>(driver.get());
    drv_n0183_serial->StopGarminUSBIOThread(true);
 
    if (!drv_n0183_serial->IsGarminThreadActive()) {
      int v_init = Garmin_GPS_Init(wxString("usb:"));
      if (v_init < 0) {
        MESSAGE_LOG << "Garmin USB GPS could not be initialized, last error: "
                    << v_init << " LastGarminError: " << GetLastGarminError();
 
        ret_val = ERR_GARMIN_INITIALIZE;
      } else {
        MESSAGE_LOG << "Garmin USB Initialized, unit identifies as: "
                    << Garmin_GPS_GetSaveString();
      }
    }
    wxLogMessage("Sending Waypoint...");
 
    // Create a RoutePointList with one item
    RoutePointList rplist;
    rplist.Append(prp);
 
    int ret1 = Garmin_GPS_SendWaypoints(wxString("usb:"), &rplist);
 
    if (ret1 != 1) {
      MESSAGE_LOG << "Error Sending Waypoint to Garmin USB, last error: "
                  << GetLastGarminError();
 
      ret_val = ERR_GARMIN_SEND_MESSAGE;
    } else
      ret_val = 0;
 
    goto ret_point;
  }
 
#endif
#endif
  return ret_val;
}
int SendRouteToGPS_N0183(Route* pr, const wxString& com_name,
                         bool bsend_waypoints, Multiplexer& multiplexer,
                         N0183DlgCtx dlg_ctx) {
  int ret_val = 0;
 
  std::unique_ptr<AbstractCommDriver> target_driver;
  ConnectionParams params_save;
  bool b_restoreStream = false;
  bool btempStream = false;
 
  auto& registry = CommDriverRegistry::GetInstance();
 
  PrepareOutputChannel(com_name, dlg_ctx, params_save, b_restoreStream,
                       btempStream);
 
  auto drv_n0183 = dynamic_cast<CommDriverN0183*>(target_driver.get());
  if (!drv_n0183) {
    return ERR_GPS_DRIVER_NOT_AVAILAIBLE;
  }
 
#ifdef USE_GARMINHOST
#ifdef __WXMSW__
  if (com_name.Upper().Matches("*GARMIN*"))  // Garmin USB Mode
  {
    auto drv_serial_n0183 =
        dynamic_cast<CommDriverN0183Serial*>(target_driver.get());
    if (drv_serial_n0183) {
      drv_serial_n0183->Close();  // Fast close
      auto& me = FindDriver(CommDriverRegistry::GetInstance().GetDrivers(),
                            drv_serial_n0183->GetParams().GetStrippedDSPort(),
                            drv_serial_n0183->GetParams().GetCommProtocol());
      registry.Deactivate(me);
    }
 
    {
      int v_init = Garmin_GPS_Init(wxString("usb:"));
      if (v_init < 0) {
        MESSAGE_LOG << "Garmin USB GPS could not be initialized, error code: "
                    << v_init << " LastGarminError: " << GetLastGarminError();
        ret_val = ERR_GARMIN_INITIALIZE;
      } else {
        MESSAGE_LOG << "Garmin USB initialized, unit identifies as "
                    << Garmin_GPS_GetSaveString();
      }
 
      wxLogMessage("Sending Routes...");
      int ret1 = Garmin_GPS_SendRoute(wxString("usb:"), pr, dlg_ctx);
 
      if (ret1 != 1) {
        MESSAGE_LOG << " Error sending routes, last garmin error: "
                    << GetLastGarminError();
        ret_val = ERR_GARMIN_SEND_MESSAGE;
      } else
        ret_val = 0;
    }
 
    goto ret_point_1;
  }
#endif
#endif
 
  if (g_bGarminHostUpload) {
    //  Close and abandon the tentatively opened target_driver
    auto drv_serial_n0183 =
        dynamic_cast<CommDriverN0183Serial*>(target_driver.get());
    if (drv_serial_n0183) {
      drv_serial_n0183->Close();  // Fast close
      auto& me = FindDriver(CommDriverRegistry::GetInstance().GetDrivers(),
                            drv_serial_n0183->GetParams().GetStrippedDSPort(),
                            drv_serial_n0183->GetParams().GetCommProtocol());
      registry.Deactivate(me);
    }
 
    int lret_val;
    dlg_ctx.set_value(20);
 
    wxString short_com = com_name.Mid(7);
    // Initialize the Garmin receiver, build required Jeeps internal data
    // structures
    // Retry 5 times, 1 sec cycle
    int n_try = 5;
    int v_init = 0;
    while (n_try) {
      v_init = Garmin_GPS_Init(short_com);
      if (v_init >= 0) break;
      n_try--;
      wxMilliSleep(1000);
    }
    if (v_init < 0) {
      MESSAGE_LOG << "Garmin GPS could not be initialized on port: "
                  << short_com << " Error Code: " << v_init
                  << " LastGarminError: " << GetLastGarminError();
 
      ret_val = ERR_GARMIN_INITIALIZE;
      goto ret_point;
    } else {
      MESSAGE_LOG << "Sendig Route to Garmin GPS on port: " << short_com
                  << "Unit identifies as: " << Garmin_GPS_GetSaveString();
    }
 
    dlg_ctx.set_value(40);
    lret_val = Garmin_GPS_SendRoute(short_com, pr, dlg_ctx);
    if (lret_val != 1) {
      MESSAGE_LOG << "Error Sending Route to Garmin GPS on port: " << short_com
                  << " Error Code: " << lret_val
                  << " LastGarminError: " << GetLastGarminError();
      ret_val = ERR_GARMIN_SEND_MESSAGE;
      goto ret_point;
    } else {
      ret_val = 0;
    }
 
  ret_point:
 
    dlg_ctx.set_value(100);
 
    wxMilliSleep(500);
 
    goto ret_point_1;
  } else
 
  {
    auto address =
        std::make_shared<NavAddr>(NavAddr::Bus::N0183, drv_n0183->iface);
    SENTENCE snt;
    NMEA0183 oNMEA0183(NmeaCtxFactory());
    oNMEA0183.TalkerID = _T ( "EC" );
 
    int nProg = pr->pRoutePointList->GetCount() + 1;
    dlg_ctx.set_range(100);
 
    int progress_stall = 500;
    if (pr->pRoutePointList->GetCount() > 10) progress_stall = 200;
 
    //       if (!dialog) progress_stall = 200;  // 80 chars at 4800 baud is
    //       ~160 msec
 
    // Send out the waypoints, in order
    if (bsend_waypoints) {
      wxRoutePointListNode* node = pr->pRoutePointList->GetFirst();
 
      int ip = 1;
      while (node) {
        RoutePoint* prp = node->GetData();
 
        if (g_GPS_Ident == "Generic") {
          if (prp->m_lat < 0.)
            oNMEA0183.Wpl.Position.Latitude.Set(-prp->m_lat, _T ( "S" ));
          else
            oNMEA0183.Wpl.Position.Latitude.Set(prp->m_lat, _T ( "N" ));
 
          if (prp->m_lon < 0.)
            oNMEA0183.Wpl.Position.Longitude.Set(-prp->m_lon, _T ( "W" ));
          else
            oNMEA0183.Wpl.Position.Longitude.Set(prp->m_lon, _T ( "E" ));
 
          oNMEA0183.Wpl.To = prp->GetName().Truncate(g_maxWPNameLength);
 
          oNMEA0183.Wpl.Write(snt);
 
        } else if (g_GPS_Ident == "FurunoGP3X") {
          //  Furuno has its own talker ID, so do not allow the global
          //  override
          wxString talker_save = g_TalkerIdText;
          g_TalkerIdText.Clear();
 
          oNMEA0183.TalkerID = _T ( "PFEC," );
 
          if (prp->m_lat < 0.)
            oNMEA0183.GPwpl.Position.Latitude.Set(-prp->m_lat, _T ( "S" ));
          else
            oNMEA0183.GPwpl.Position.Latitude.Set(prp->m_lat, _T ( "N" ));
 
          if (prp->m_lon < 0.)
            oNMEA0183.GPwpl.Position.Longitude.Set(-prp->m_lon, _T ( "W" ));
          else
            oNMEA0183.GPwpl.Position.Longitude.Set(prp->m_lon, _T ( "E" ));
 
          wxString name = prp->GetName();
          name += "000000";
          name.Truncate(g_maxWPNameLength);
          oNMEA0183.GPwpl.To = name;
 
          oNMEA0183.GPwpl.Write(snt);
 
          g_TalkerIdText = talker_save;
        }
 
        wxString payload = snt.Sentence;
 
        // for some gps, like some garmin models, they assume the first
        // waypoint in the route is the boat location, therefore it is
        // dropped. These gps also can only accept a maximum of up to 20
        // waypoints at a time before a delay is needed and a new string of
        // waypoints may be sent. To ensure all waypoints will arrive, we can
        // simply send each one twice. This ensures that the gps  will get the
        // waypoint and also allows us to send as many as we like
        //
        //  We need only send once for FurunoGP3X models
 
        auto msg_out = std::make_shared<Nmea0183Msg>(
            "ECWPL", snt.Sentence.ToStdString(), address);
 
        drv_n0183->SendMessage(msg_out, std::make_shared<NavAddr>());
        if (g_GPS_Ident != "FurunoGP3X")
          drv_n0183->SendMessage(msg_out, std::make_shared<NavAddr>());
 
        NavmsgStatus ns;
        ns.direction = NavmsgStatus::Direction::kOutput;
        multiplexer.LogOutputMessage(msg_out, ns);
        auto msg =
            wxString("-->GPS Port: ") + com_name + " Sentence: " + snt.Sentence;
        msg.Trim();
        wxLogMessage(msg);
 
        dlg_ctx.set_value((ip * 100) / nProg);
 
        wxMilliSleep(progress_stall);
 
        node = node->GetNext();
        ip++;
      }
    }
 
    // Create the NMEA Rte sentence
    // Try to create a single sentence, and then check the length to see if
    // too long
    unsigned int max_length = 76;
    unsigned int max_wp = 2;  // seems to be required for garmin...
 
    //  Furuno GPS can only accept 5 (five) waypoint linkage sentences....
    //  So, we need to compact a few more points into each link sentence.
    if (g_GPS_Ident == "FurunoGP3X") {
      max_wp = 8;
      max_length = 80;
    }
 
    //  Furuno has its own talker ID, so do not allow the global override
    wxString talker_save = g_TalkerIdText;
    if (g_GPS_Ident == "FurunoGP3X") g_TalkerIdText.Clear();
 
    oNMEA0183.Rte.Empty();
    oNMEA0183.Rte.TypeOfRoute = CompleteRoute;
 
    if (pr->m_RouteNameString.IsEmpty())
      oNMEA0183.Rte.RouteName = _T ( "1" );
    else
      oNMEA0183.Rte.RouteName = pr->m_RouteNameString;
 
    if (g_GPS_Ident == "FurunoGP3X") {
      oNMEA0183.Rte.RouteName = _T ( "01" );
      oNMEA0183.TalkerID = _T ( "GP" );
      oNMEA0183.Rte.m_complete_char = 'C';  // override the default "c"
      oNMEA0183.Rte.m_skip_checksum = 1;    // no checksum needed
    }
 
    oNMEA0183.Rte.total_number_of_messages = 1;
    oNMEA0183.Rte.message_number = 1;
 
    // add the waypoints
    auto node = pr->pRoutePointList->GetFirst();
    while (node) {
      RoutePoint* prp = node->GetData();
      wxString name = prp->GetName().Truncate(g_maxWPNameLength);
 
      if (g_GPS_Ident == "FurunoGP3X") {
        name = prp->GetName();
        name += "000000";
        name.Truncate(g_maxWPNameLength);
        name.Prepend(" ");  // What Furuno calls "Skip Code", space means
                            // use the WP
      }
 
      oNMEA0183.Rte.AddWaypoint(name);
      node = node->GetNext();
    }
 
    oNMEA0183.Rte.Write(snt);
 
    if ((snt.Sentence.Len() > max_length) ||
        (pr->pRoutePointList->GetCount() >
         max_wp))  // Do we need split sentences?
    {
      // Make a route with zero waypoints to get tare load.
      NMEA0183 tNMEA0183(NmeaCtxFactory());
      SENTENCE tsnt;
      tNMEA0183.TalkerID = _T ( "EC" );
 
      tNMEA0183.Rte.Empty();
      tNMEA0183.Rte.TypeOfRoute = CompleteRoute;
 
      if (g_GPS_Ident != "FurunoGP3X") {
        if (pr->m_RouteNameString.IsEmpty())
          tNMEA0183.Rte.RouteName = _T ( "1" );
        else
          tNMEA0183.Rte.RouteName = pr->m_RouteNameString;
 
      } else {
        tNMEA0183.Rte.RouteName = _T ( "01" );
      }
 
      tNMEA0183.Rte.Write(tsnt);
 
      unsigned int tare_length = tsnt.Sentence.Len();
      tare_length -= 3;  // Drop the checksum, for length calculations
 
      wxArrayString sentence_array;
 
      // Trial balloon: add the waypoints, with length checking
      int n_total = 1;
      bool bnew_sentence = true;
      int sent_len = 0;
      unsigned int wp_count = 0;
 
      auto _node = pr->pRoutePointList->GetFirst();
      while (_node) {
        RoutePoint* prp = _node->GetData();
        unsigned int name_len =
            prp->GetName().Truncate(g_maxWPNameLength).Len();
        if (g_GPS_Ident == "FurunoGP3X")
          name_len = 7;  // six chars, with leading space for "Skip Code"
 
        if (bnew_sentence) {
          sent_len = tare_length;
          sent_len += name_len + 1;  // with comma
          bnew_sentence = false;
          _node = _node->GetNext();
          wp_count = 1;
 
        } else {
          if ((sent_len + name_len > max_length) || (wp_count >= max_wp)) {
            n_total++;
            bnew_sentence = true;
          } else {
            if (wp_count == max_wp)
              sent_len += name_len;  // with comma
            else
              sent_len += name_len + 1;  // with comma
            wp_count++;
            _node = _node->GetNext();
          }
        }
      }
 
      // Now we have the sentence count, so make the real sentences using the
      // same counting logic
      int final_total = n_total;
      int n_run = 1;
      bnew_sentence = true;
 
      _node = pr->pRoutePointList->GetFirst();
      while (_node) {
        RoutePoint* prp = _node->GetData();
        wxString name = prp->GetName().Truncate(g_maxWPNameLength);
        if (g_GPS_Ident == "FurunoGP3X") {
          name = prp->GetName();
          name += "000000";
          name.Truncate(g_maxWPNameLength);
          name.Prepend(" ");  // What Furuno calls "Skip Code", space
                              // means use the WP
        }
 
        unsigned int name_len = name.Len();
 
        if (bnew_sentence) {
          sent_len = tare_length;
          sent_len += name_len + 1;  // comma
          bnew_sentence = false;
 
          oNMEA0183.Rte.Empty();
          oNMEA0183.Rte.TypeOfRoute = CompleteRoute;
 
          if (g_GPS_Ident != "FurunoGP3X") {
            if (pr->m_RouteNameString.IsEmpty())
              oNMEA0183.Rte.RouteName = "1";
            else
              oNMEA0183.Rte.RouteName = pr->m_RouteNameString;
          } else {
            oNMEA0183.Rte.RouteName = "01";
          }
 
          oNMEA0183.Rte.total_number_of_messages = final_total;
          oNMEA0183.Rte.message_number = n_run;
          snt.Sentence.Clear();
          wp_count = 1;
 
          oNMEA0183.Rte.AddWaypoint(name);
          _node = _node->GetNext();
        } else {
          if ((sent_len + name_len > max_length) || (wp_count >= max_wp)) {
            n_run++;
            bnew_sentence = true;
 
            oNMEA0183.Rte.Write(snt);
 
            sentence_array.Add(snt.Sentence);
          } else {
            sent_len += name_len + 1;  // comma
            oNMEA0183.Rte.AddWaypoint(name);
            wp_count++;
            _node = _node->GetNext();
          }
        }
      }
 
      oNMEA0183.Rte.Write(snt);  // last one...
      if (snt.Sentence.Len() > tare_length) sentence_array.Add(snt.Sentence);
 
      for (unsigned int ii = 0; ii < sentence_array.GetCount(); ii++) {
        wxString sentence = sentence_array[ii];
 
        auto msg_out = std::make_shared<Nmea0183Msg>(
            "ECRTE", sentence.ToStdString(), std::make_shared<NavAddr>());
        drv_n0183->SendMessage(msg_out, address);
 
        NavmsgStatus ns;
        ns.direction = NavmsgStatus::Direction::kOutput;
        multiplexer.LogOutputMessage(msg_out, ns);
        wxYield();
 
        //             LogOutputMessage(sentence, dstr->GetPort(), false);
        auto msg =
            wxString("-->GPS Port: ") + com_name + " Sentence: " + sentence;
        msg.Trim();
        wxLogMessage(msg);
 
        wxMilliSleep(progress_stall);
      }
 
    } else {
      auto msg_out = std::make_shared<Nmea0183Msg>(
          "ECRTE", snt.Sentence.ToStdString(), address);
      drv_n0183->SendMessage(msg_out, address);
 
      NavmsgStatus ns;
      ns.direction = NavmsgStatus::Direction::kOutput;
      multiplexer.LogOutputMessage(msg_out, ns);
      wxYield();
 
      auto msg =
          wxString("-->GPS Port:") + com_name + " Sentence: " + snt.Sentence;
      msg.Trim();
      wxLogMessage(msg);
    }
 
    if (g_GPS_Ident == "FurunoGP3X") {
      wxString name = pr->GetName();
      if (name.IsEmpty()) name = "RTECOMMENT";
      wxString rte;
      rte.Printf("$PFEC,GPrtc,01,");
      rte += name.Left(16);
      wxString rtep;
      rtep.Printf(",%c%c", 0x0d, 0x0a);
      rte += rtep;
 
      auto msg_out =
          std::make_shared<Nmea0183Msg>("GPRTC", rte.ToStdString(), address);
      drv_n0183->SendMessage(msg_out, address);
      NavmsgStatus ns;
      ns.direction = NavmsgStatus::Direction::kOutput;
      multiplexer.LogOutputMessage(msg_out, ns);
 
      auto msg = wxString("-->GPS Port:") + com_name + " Sentence: " + rte;
      msg.Trim();
      wxLogMessage(msg);
 
      wxString term;
      term.Printf("$PFEC,GPxfr,CTL,E%c%c", 0x0d, 0x0a);
 
      auto msg_outf =
          std::make_shared<Nmea0183Msg>("GPRTC", term.ToStdString(), address);
      drv_n0183->SendMessage(msg_outf, address);
 
      ns = NavmsgStatus();
      ns.direction = NavmsgStatus::Direction::kOutput;
      multiplexer.LogOutputMessage(msg_outf, ns);
 
      msg = wxString("-->GPS Port:") + com_name + " Sentence: " + term;
      msg.Trim();
      wxLogMessage(msg);
    }
    dlg_ctx.set_value(100);
 
    wxMilliSleep(progress_stall);
 
    ret_val = 0;
 
    if (g_GPS_Ident == "FurunoGP3X") g_TalkerIdText = talker_save;
  }
ret_point_1:
  //  All finished with the temp port
  if (btempStream) {
    registry.Deactivate(target_driver);
  }
 
  if (b_restoreStream) {
    wxMilliSleep(500);  // Give temp driver a chance to die
    MakeCommDriver(&params_save);
  }
 
  return ret_val;
}
 
int SendWaypointToGPS_N0183(RoutePoint* prp, const wxString& com_name,
                            Multiplexer& multiplexer, N0183DlgCtx dlg_ctx) {
  int ret_val = 0;
 
  std::unique_ptr<AbstractCommDriver> target_driver;
  ConnectionParams params_save;
  bool b_restoreStream = false;
  bool btempStream = false;
 
  auto& registry = CommDriverRegistry::GetInstance();
 
  PrepareOutputChannel(com_name, dlg_ctx, params_save, b_restoreStream,
                       btempStream);
 
#ifdef USE_GARMINHOST
#ifdef __WXMSW__
  if (com_name.Upper().Matches("*GARMIN*"))  // Garmin USB Mode
  {
    auto drv_serial_n0183 =
        dynamic_cast<CommDriverN0183Serial*>(target_driver.get());
    if (drv_serial_n0183) {
      drv_serial_n0183->Close();  // Fast close
      auto& me = FindDriver(CommDriverRegistry::GetInstance().GetDrivers(),
                            drv_serial_n0183->GetParams().GetStrippedDSPort(),
                            drv_serial_n0183->GetParams().GetCommProtocol());
 
      registry.Deactivate(me);
    }
 
    {
      int v_init = Garmin_GPS_Init(wxString("usb:"));
      if (v_init < 0) {
        MESSAGE_LOG << "Garmin USB GPS could not be initialized, last error: "
                    << v_init << " LastGarminError: " << GetLastGarminError();
 
        ret_val = ERR_GARMIN_INITIALIZE;
      } else {
        MESSAGE_LOG << "Garmin USB Initialized, unit identifies as: "
                    << Garmin_GPS_GetSaveString();
      }
    }
    wxLogMessage("Sending Waypoint...");
 
    // Create a RoutePointList with one item
    RoutePointList rplist;
    rplist.Append(prp);
 
    int ret1 = Garmin_GPS_SendWaypoints(wxString("usb:"), &rplist);
 
    if (ret1 != 1) {
      MESSAGE_LOG << "Error Sending Waypoint to Garmin USB, last error: "
                  << GetLastGarminError();
 
      ret_val = ERR_GARMIN_SEND_MESSAGE;
    } else
      ret_val = 0;
 
    goto ret_point;
  }
 
#endif
#endif
 
#ifdef USE_GARMINHOST
  // Are we using Garmin Host mode for uploads?
  if (g_bGarminHostUpload) {
    //  Close and abandon the tentatively opened target_driver
    auto serial_n0183 =
        dynamic_cast<CommDriverN0183Serial*>(target_driver.get());
    if (serial_n0183) {
      serial_n0183->Close();  // Fast close
      auto& me = FindDriver(CommDriverRegistry::GetInstance().GetDrivers(),
                            serial_n0183->GetParams().GetStrippedDSPort(),
                            serial_n0183->GetParams().GetCommProtocol());
      registry.Deactivate(me);
    }
    RoutePointList rplist;
 
    wxString short_com = com_name.Mid(7);
    // Initialize the Garmin receiver, build required Jeeps internal data
    // structures
    // Retry 5 times, 1 sec cycle
    int n_try = 5;
    int v_init = 0;
    while (n_try) {
      v_init = Garmin_GPS_Init(short_com);
      if (v_init >= 0) break;
      n_try--;
      wxMilliSleep(1000);
    }
    if (v_init < 0) {
      MESSAGE_LOG << "Garmin GPS could not be initialized on port: " << com_name
                  << " Error Code: " << v_init
                  << "LastGarminError: " << GetLastGarminError();
 
      ret_val = ERR_GARMIN_INITIALIZE;
      goto ret_point;
    } else {
      MESSAGE_LOG << "Sending waypoint(s) to Garmin GPS on port: " << com_name;
      MESSAGE_LOG << "Unit identifies as: " << Garmin_GPS_GetSaveString();
    }
 
    // Create a RoutePointList with one item
    rplist.Append(prp);
 
    ret_val = Garmin_GPS_SendWaypoints(short_com, &rplist);
    if (ret_val != 1) {
      MESSAGE_LOG << "Error Sending Waypoint(s) to Garmin GPS on port, "
                  << com_name << " error code: " << ret_val
                  << ", last garmin error: " << GetLastGarminError();
      ret_val = ERR_GARMIN_SEND_MESSAGE;
      goto ret_point;
    } else
      ret_val = 0;
 
    goto ret_point;
  } else
#endif  // USE_GARMINHOST
 
  {  // Standard NMEA mode
    auto drv_n0183 = dynamic_cast<CommDriverN0183*>(target_driver.get());
    if (!drv_n0183) {
      ret_val = ERR_GPS_DRIVER_NOT_AVAILAIBLE;
      goto ret_point;
    }
 
    auto address = std::make_shared<NavAddr>();
    SENTENCE snt;
    NMEA0183 oNMEA0183(NmeaCtxFactory());
    oNMEA0183.TalkerID = "EC";
    dlg_ctx.set_range(100);
 
    if (g_GPS_Ident == "Generic") {
      if (prp->m_lat < 0.)
        oNMEA0183.Wpl.Position.Latitude.Set(-prp->m_lat, "S");
      else
        oNMEA0183.Wpl.Position.Latitude.Set(prp->m_lat, "N");
 
      if (prp->m_lon < 0.)
        oNMEA0183.Wpl.Position.Longitude.Set(-prp->m_lon, "W");
      else
        oNMEA0183.Wpl.Position.Longitude.Set(prp->m_lon, "E");
 
      oNMEA0183.Wpl.To = prp->GetName().Truncate(g_maxWPNameLength);
 
      oNMEA0183.Wpl.Write(snt);
    } else if (g_GPS_Ident == "FurunoGP3X") {
      oNMEA0183.TalkerID = "PFEC,";
 
      if (prp->m_lat < 0.)
        oNMEA0183.GPwpl.Position.Latitude.Set(-prp->m_lat, "S");
      else
        oNMEA0183.GPwpl.Position.Latitude.Set(prp->m_lat, "N");
 
      if (prp->m_lon < 0.)
        oNMEA0183.GPwpl.Position.Longitude.Set(-prp->m_lon, "W");
      else
        oNMEA0183.GPwpl.Position.Longitude.Set(prp->m_lon, "E");
 
      wxString name = prp->GetName();
      name += "000000";
      name.Truncate(g_maxWPNameLength);
      oNMEA0183.GPwpl.To = name;
 
      oNMEA0183.GPwpl.Write(snt);
    }
 
    auto msg_out = std::make_shared<Nmea0183Msg>(
        "ECWPL", snt.Sentence.ToStdString(), address);
    drv_n0183->SendMessage(msg_out, address);
 
    NavmsgStatus ns;
    ns.direction = NavmsgStatus::Direction::kOutput;
    multiplexer.LogOutputMessage(msg_out, ns);
    auto msg = wxString("-->GPS Port:") + com_name + " Sentence: ";
    msg.Trim();
    wxLogMessage(msg);
 
    if (g_GPS_Ident == "FurunoGP3X") {
      wxString term;
      term.Printf("$PFEC,GPxfr,CTL,E%c%c", 0x0d, 0x0a);
 
      // driver->SendSentence(term);
      // LogOutputMessage(term, dstr->GetPort(), false);
 
      auto logmsg = wxString("-->GPS Port:") + com_name + " Sentence: " + term;
      logmsg.Trim();
      wxLogMessage(logmsg);
    }
    dlg_ctx.set_value(100);
 
    wxMilliSleep(500);
 
    ret_val = 0;
  }
 
ret_point:
  //  All finished with the temp port
  if (btempStream) registry.Deactivate(target_driver);
 
  if (b_restoreStream) {
    MakeCommDriver(&params_save);
  }
  return ret_val;
}