added icao24.db database and tool generator

firmware/tools/generate_world_map.bin.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # Copyright (C) 2017 Furrtek
 #

firmware/tools/make_icao24_db/README.md

@@ -0,0 +1,8 @@
+# Make icao24.db
+
+Licensed under [GNU GPL v3](../../../LICENSE)
+
+USAGE:
+ - Copy file from: https://opensky-network.org/datasets/metadata/aircraftDatabase.csv
+ - Run Python 3 script: `./make_icao24_db.py` 
+ - Copy file to /ADSB folder on SDCARD

firmware/tools/make_icao24_db/make_icao24_db.py

@@ -0,0 +1,68 @@
+#!/usr/bin/env python3
+
+# Copyright (C) 2021 ArjanOnwezen
+#
+# 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, 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; see the file COPYING.  If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+# -------------------------------------------------------------------------------------
+# Create icao24.db, used for ADS-B receiver application, using
+# https://opensky-network.org/datasets/metadata/aircraftDatabase.csv 
+# as a source.
+# -------------------------------------------------------------------------------------
+import csv
+import unicodedata
+icao24_codes=bytearray()
+data=bytearray()
+row_count=0
+
+database=open("icao24.db", "wb")
+
+with open('aircraftDatabase.csv', 'rt') as csv_file:
+    sorted_lines=sorted(csv_file.readlines()[1:]) 
+    for row in csv.reader(sorted_lines, quotechar='"', delimiter=',', quoting=csv.QUOTE_ALL, skipinitialspace=True):
+            # only store in case enough info is available
+            if len(row) == 27 and len(row[0]) == 6 and len(row[1]) > 0:
+                icao24_code=row[0][:6].upper()
+                registration=row[1][:8].encode('ascii', 'ignore')
+                manufacturer=row[3][:32].encode('ascii', 'ignore') 
+                model=row[4][:32].encode('ascii', 'ignore')
+                # in case icao aircraft type isn't, use ac type like BALL for balloon
+                if len(row[8]) == 3:  
+                    actype=row[8][:3].encode('ascii', 'ignore') 
+                else:
+                    actype=row[5][:4].encode('ascii', 'ignore')
+
+                owner=row[13][:32].encode('ascii', 'ignore')
+                #padding
+                registration_padding=bytearray()
+                manufacturer_padding=bytearray()
+                model_padding=bytearray()
+                actype_padding=bytearray()
+                owner_padding=bytearray()
+                # debug print(icao24_code,' - ', registration,' - ', manufacturer, '-', model, '-', actype, '-', owner)
+                icao24_codes=icao24_codes+bytearray(icao24_code+'\0', encoding='ascii')
+                registration_padding=bytearray('\0' * (8 - len(registration)), encoding='ascii')    
+                manufacturer_padding=bytearray('\0' * (32 - len(manufacturer)), encoding='ascii')
+                model_padding=bytearray('\0' * (32 - len(model)), encoding='ascii')
+                actype_padding=bytearray('\0' * (4 - len(actype)), encoding='ascii')
+                owner_padding=bytearray('\0' * (32 - len(owner)), encoding='ascii')
+                data=data+bytearray(registration+registration_padding+manufacturer+manufacturer_padding+model+model_padding+actype+actype_padding+owner+owner_padding)
+                row_count+=1
+
+database.write(icao24_codes+data)
+print("Total of", row_count, "ICAO codes stored in database")
+