diff options
Diffstat (limited to 'altoslib/AltosTelemetryRecord.java')
-rw-r--r-- | altoslib/AltosTelemetryRecord.java | 136 |
1 files changed, 0 insertions, 136 deletions
diff --git a/altoslib/AltosTelemetryRecord.java b/altoslib/AltosTelemetryRecord.java deleted file mode 100644 index a46c1a33..00000000 --- a/altoslib/AltosTelemetryRecord.java +++ /dev/null @@ -1,136 +0,0 @@ -/* - * Copyright © 2011 Keith Packard <keithp@keithp.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; version 2 of the License. - * - * 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., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - */ - -package org.altusmetrum.altoslib_2; -import java.text.*; - -public abstract class AltosTelemetryRecord { - - long received_time; - abstract public AltosRecord update_state(AltosRecord previous); - - static boolean cksum(int[] bytes) { - int sum = 0x5a; - for (int i = 1; i < bytes.length - 1; i++) - sum += bytes[i]; - sum &= 0xff; - return sum == bytes[bytes.length - 1]; - } - - final static int PKT_APPEND_STATUS_1_CRC_OK = (1 << 7); - final static int PKT_APPEND_STATUS_1_LQI_MASK = (0x7f); - final static int PKT_APPEND_STATUS_1_LQI_SHIFT = 0; - - final static int packet_type_TM_sensor = 0x01; - final static int packet_type_Tm_sensor = 0x02; - final static int packet_type_Tn_sensor = 0x03; - final static int packet_type_configuration = 0x04; - final static int packet_type_location = 0x05; - final static int packet_type_satellite = 0x06; - final static int packet_type_companion = 0x07; - final static int packet_type_MM_sensor = 0x08; - final static int packet_type_MM_data = 0x09; - final static int packet_type_Mini = 0x10; - - static AltosTelemetryRecord parse_hex(String hex) throws ParseException, AltosCRCException { - AltosTelemetryRecord r; - - int[] bytes; - try { - bytes = AltosLib.hexbytes(hex); - } catch (NumberFormatException ne) { - throw new ParseException(ne.getMessage(), 0); - } - - /* one for length, one for checksum */ - if (bytes[0] != bytes.length - 2) - throw new ParseException(String.format("invalid length %d != %d\n", - bytes[0], - bytes.length - 2), 0); - if (!cksum(bytes)) - throw new ParseException(String.format("invalid line \"%s\"", hex), 0); - - int rssi = AltosLib.int8(bytes, bytes.length - 3) / 2 - 74; - int status = AltosLib.uint8(bytes, bytes.length - 2); - - if ((status & PKT_APPEND_STATUS_1_CRC_OK) == 0) - throw new AltosCRCException(rssi); - - /* length, data ..., rssi, status, checksum -- 4 bytes extra */ - switch (bytes.length) { - case AltosLib.ao_telemetry_standard_len + 4: - int type = AltosLib.uint8(bytes, 4 + 1); - switch (type) { - case packet_type_TM_sensor: - case packet_type_Tm_sensor: - case packet_type_Tn_sensor: - r = new AltosTelemetryRecordSensor(bytes, rssi); - break; - case packet_type_configuration: - r = new AltosTelemetryRecordConfiguration(bytes, rssi); - break; - case packet_type_location: - r = new AltosTelemetryRecordLocation(bytes, rssi); - break; - case packet_type_satellite: - r = new AltosTelemetryRecordSatellite(bytes, rssi); - break; - case packet_type_companion: - r = new AltosTelemetryRecordCompanion(bytes, rssi); - break; - case packet_type_MM_sensor: - r = new AltosTelemetryRecordMegaSensor(bytes, rssi); - break; - case packet_type_MM_data: - r = new AltosTelemetryRecordMegaData(bytes, rssi); - break; - default: - r = new AltosTelemetryRecordRaw(bytes, rssi); - break; - } - break; - case AltosLib.ao_telemetry_0_9_len + 4: - r = new AltosTelemetryRecordLegacy(bytes, rssi, status); - break; - case AltosLib.ao_telemetry_0_8_len + 4: - r = new AltosTelemetryRecordLegacy(bytes, rssi, status); - break; - default: - throw new ParseException(String.format("Invalid packet length %d", bytes.length), 0); - } - r.received_time = System.currentTimeMillis(); - return r; - } - - public static AltosTelemetryRecord parse(String line) throws ParseException, AltosCRCException { - AltosTelemetryRecord r; - - String[] word = line.split("\\s+"); - int i =0; - if (word[i].equals("CRC") && word[i+1].equals("INVALID")) { - i += 2; - AltosParse.word(word[i++], "RSSI"); - throw new AltosCRCException(AltosParse.parse_int(word[i++])); - } - - if (word[i].equals("TELEM")) - r = parse_hex(word[i+1]); - else - r = new AltosTelemetryRecordLegacy(line); - return r; - } -} |