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							367 lines
						
					
					
						
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							367 lines
						
					
					
						
							12 KiB
						
					
					
				| #!/usr/bin/env python3
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| import os
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| import sys
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| import signal
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| import itertools
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| import math
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| import time
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| import subprocess
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| from typing import NoReturn
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| from struct import unpack_from, calcsize, pack
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| 
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| from cereal import log
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| import cereal.messaging as messaging
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| from common.gpio import gpio_init, gpio_set
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| from laika.gps_time import GPSTime
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| from system.hardware.tici.pins import GPIO
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| from system.swaglog import cloudlog
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| from system.sensord.rawgps.modemdiag import ModemDiag, DIAG_LOG_F, setup_logs, send_recv
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| from system.sensord.rawgps.structs import (dict_unpacker, position_report, relist,
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|                                               gps_measurement_report, gps_measurement_report_sv,
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|                                               glonass_measurement_report, glonass_measurement_report_sv,
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|                                               oemdre_measurement_report, oemdre_measurement_report_sv, oemdre_svpoly_report,
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|                                               LOG_GNSS_GPS_MEASUREMENT_REPORT, LOG_GNSS_GLONASS_MEASUREMENT_REPORT,
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|                                               LOG_GNSS_POSITION_REPORT, LOG_GNSS_OEMDRE_MEASUREMENT_REPORT,
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|                                               LOG_GNSS_OEMDRE_SVPOLY_REPORT)
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| 
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| DEBUG = int(os.getenv("DEBUG", "0"))==1
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| 
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| LOG_TYPES = [
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|   LOG_GNSS_GPS_MEASUREMENT_REPORT,
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|   LOG_GNSS_GLONASS_MEASUREMENT_REPORT,
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|   LOG_GNSS_OEMDRE_MEASUREMENT_REPORT,
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|   LOG_GNSS_POSITION_REPORT,
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|   LOG_GNSS_OEMDRE_SVPOLY_REPORT,
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| ]
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| 
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| 
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| miscStatusFields = {
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|   "multipathEstimateIsValid": 0,
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|   "directionIsValid": 1,
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| }
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| 
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| measurementStatusFields = {
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|   "subMillisecondIsValid": 0,
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|   "subBitTimeIsKnown": 1,
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|   "satelliteTimeIsKnown": 2,
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|   "bitEdgeConfirmedFromSignal": 3,
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|   "measuredVelocity": 4,
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|   "fineOrCoarseVelocity": 5,
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|   "lockPointValid": 6,
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|   "lockPointPositive": 7,
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| 
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|   "lastUpdateFromDifference": 9,
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|   "lastUpdateFromVelocityDifference": 10,
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|   "strongIndicationOfCrossCorelation": 11,
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|   "tentativeMeasurement": 12,
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|   "measurementNotUsable": 13,
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|   "sirCheckIsNeeded": 14,
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|   "probationMode": 15,
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| 
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|   "multipathIndicator": 24,
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|   "imdJammingIndicator": 25,
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|   "lteB13TxJammingIndicator": 26,
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|   "freshMeasurementIndicator": 27,
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| }
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| 
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| measurementStatusGPSFields = {
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|   "gpsRoundRobinRxDiversity": 18,
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|   "gpsRxDiversity": 19,
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|   "gpsLowBandwidthRxDiversityCombined": 20,
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|   "gpsHighBandwidthNu4": 21,
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|   "gpsHighBandwidthNu8": 22,
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|   "gpsHighBandwidthUniform": 23,
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| }
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| 
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| measurementStatusGlonassFields = {
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|   "glonassMeanderBitEdgeValid": 16,
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|   "glonassTimeMarkValid": 17
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| }
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| 
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| 
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| def try_setup_logs(diag, log_types):
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|   for _ in range(5):
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|     try:
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|       setup_logs(diag, log_types)
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|       break
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|     except Exception:
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|       cloudlog.exception("setup logs failed, trying again")
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|   else:
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|     raise Exception(f"setup logs failed, {log_types=}")
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| 
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| def at_cmd(cmd: str) -> None:
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|   for _ in range(5):
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|     try:
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|       subprocess.check_call(f"mmcli -m any --timeout 30 --command='{cmd}'", shell=True)
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|       break
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|     except subprocess.CalledProcessError:
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|       cloudlog.exception("rawgps.mmcli_command_failed")
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|   else:
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|     raise Exception(f"failed to execute mmcli command {cmd=}")
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| 
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| 
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| def gps_enabled() -> bool:
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|   try:
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|     p = subprocess.check_output("mmcli -m any --command=\"AT+QGPS?\"", shell=True)
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|     return b"QGPS: 1" in p
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|   except subprocess.CalledProcessError as exc:
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|     raise Exception("failed to execute QGPS mmcli command") from exc
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| 
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| def setup_quectel(diag: ModemDiag):
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|   # enable OEMDRE in the NV
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|   # TODO: it has to reboot for this to take effect
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|   DIAG_NV_READ_F = 38
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|   DIAG_NV_WRITE_F = 39
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|   NV_GNSS_OEM_FEATURE_MASK = 7165
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|   send_recv(diag, DIAG_NV_WRITE_F, pack('<HI', NV_GNSS_OEM_FEATURE_MASK, 1))
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|   send_recv(diag, DIAG_NV_READ_F, pack('<H', NV_GNSS_OEM_FEATURE_MASK))
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| 
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|   setup_logs(diag, LOG_TYPES)
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| 
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|   if gps_enabled():
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|     at_cmd("AT+QGPSEND")
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| 
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|   # disable DPO power savings for more accuracy
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|   at_cmd("AT+QGPSCFG=\"dpoenable\",0")
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|   # don't automatically turn on GNSS on powerup
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|   at_cmd("AT+QGPSCFG=\"autogps\",0")
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| 
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|   at_cmd("AT+QGPSSUPLURL=\"supl.google.com:7275\"")
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|   at_cmd("AT+QGPSCFG=\"outport\",\"usbnmea\"")
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|   at_cmd("AT+QGPS=1")
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| 
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|   # enable OEMDRE mode
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|   DIAG_SUBSYS_CMD_F = 75
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|   DIAG_SUBSYS_GPS = 13
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|   CGPS_DIAG_PDAPI_CMD = 0x64
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|   CGPS_OEM_CONTROL = 202
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|   GPSDIAG_OEMFEATURE_DRE = 1
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|   GPSDIAG_OEM_DRE_ON = 1
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| 
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|   # gpsdiag_OemControlReqType
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|   send_recv(diag, DIAG_SUBSYS_CMD_F, pack('<BHBBIIII',
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|     DIAG_SUBSYS_GPS,           # Subsystem Id
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|     CGPS_DIAG_PDAPI_CMD,       # Subsystem Command Code
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|     CGPS_OEM_CONTROL,          # CGPS Command Code
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|     0,                         # Version
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|     GPSDIAG_OEMFEATURE_DRE,
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|     GPSDIAG_OEM_DRE_ON,
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|     0,0
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|   ))
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| 
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| def teardown_quectel(diag):
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|   at_cmd("AT+QGPSCFG=\"outport\",\"none\"")
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|   if gps_enabled():
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|     at_cmd("AT+QGPSEND")
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|   try_setup_logs(diag, [])
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| 
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| 
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| def main() -> NoReturn:
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|   unpack_gps_meas, size_gps_meas = dict_unpacker(gps_measurement_report, True)
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|   unpack_gps_meas_sv, size_gps_meas_sv = dict_unpacker(gps_measurement_report_sv, True)
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| 
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|   unpack_glonass_meas, size_glonass_meas = dict_unpacker(glonass_measurement_report, True)
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|   unpack_glonass_meas_sv, size_glonass_meas_sv = dict_unpacker(glonass_measurement_report_sv, True)
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| 
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|   unpack_oemdre_meas, size_oemdre_meas = dict_unpacker(oemdre_measurement_report, True)
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|   unpack_oemdre_meas_sv, size_oemdre_meas_sv = dict_unpacker(oemdre_measurement_report_sv, True)
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| 
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|   unpack_svpoly, _ = dict_unpacker(oemdre_svpoly_report, True)
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|   unpack_position, _ = dict_unpacker(position_report)
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| 
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|   unpack_position, _ = dict_unpacker(position_report)
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| 
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|   # wait for ModemManager to come up
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|   cloudlog.warning("waiting for modem to come up")
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|   while True:
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|     ret = subprocess.call("mmcli -m any --timeout 10 --command=\"AT+QGPS?\"", stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL, shell=True)
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|     if ret == 0:
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|       break
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|     time.sleep(0.1)
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| 
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|   # connect to modem
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|   diag = ModemDiag()
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| 
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|   def cleanup(sig, frame):
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|     cloudlog.warning(f"caught sig {sig}, disabling quectel gps")
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|     gpio_set(GPIO.UBLOX_PWR_EN, False)
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|     teardown_quectel(diag)
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|     cloudlog.warning("quectel cleanup done")
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|     sys.exit(0)
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|   signal.signal(signal.SIGINT, cleanup)
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|   signal.signal(signal.SIGTERM, cleanup)
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| 
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|   setup_quectel(diag)
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|   cloudlog.warning("quectel setup done")
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|   gpio_init(GPIO.UBLOX_PWR_EN, True)
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|   gpio_set(GPIO.UBLOX_PWR_EN, True)
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| 
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|   pm = messaging.PubMaster(['qcomGnss', 'gpsLocation'])
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| 
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|   while 1:
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|     opcode, payload = diag.recv()
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|     if opcode != DIAG_LOG_F:
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|       cloudlog.error(f"Unhandled opcode: {opcode}")
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|       continue
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| 
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|     (pending_msgs, log_outer_length), inner_log_packet = unpack_from('<BH', payload), payload[calcsize('<BH'):]
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|     if pending_msgs > 0:
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|       cloudlog.debug("have %d pending messages" % pending_msgs)
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|     assert log_outer_length == len(inner_log_packet)
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| 
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|     (log_inner_length, log_type, log_time), log_payload = unpack_from('<HHQ', inner_log_packet), inner_log_packet[calcsize('<HHQ'):]
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|     assert log_inner_length == len(inner_log_packet)
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| 
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|     if log_type not in LOG_TYPES:
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|       continue
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| 
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|     if DEBUG:
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|       print("%.4f: got log: %x len %d" % (time.time(), log_type, len(log_payload)))
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| 
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|     if log_type == LOG_GNSS_OEMDRE_MEASUREMENT_REPORT:
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|       msg = messaging.new_message('qcomGnss')
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| 
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|       gnss = msg.qcomGnss
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|       gnss.logTs = log_time
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|       gnss.init('drMeasurementReport')
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|       report = gnss.drMeasurementReport
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| 
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|       dat = unpack_oemdre_meas(log_payload)
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|       for k,v in dat.items():
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|         if k in ["gpsTimeBias", "gpsClockTimeUncertainty"]:
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|           k += "Ms"
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|         if k == "version":
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|           assert v == 2
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|         elif k == "svCount" or k.startswith("cdmaClockInfo["):
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|           # TODO: should we save cdmaClockInfo?
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|           pass
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|         elif k == "systemRtcValid":
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|           setattr(report, k, bool(v))
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|         else:
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|           setattr(report, k, v)
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| 
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|       report.init('sv', dat['svCount'])
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|       sats = log_payload[size_oemdre_meas:]
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|       for i in range(dat['svCount']):
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|         sat = unpack_oemdre_meas_sv(sats[size_oemdre_meas_sv*i:size_oemdre_meas_sv*(i+1)])
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|         sv = report.sv[i]
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|         sv.init('measurementStatus')
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|         for k,v in sat.items():
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|           if k in ["unkn", "measurementStatus2"]:
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|             pass
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|           elif k == "multipathEstimateValid":
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|             sv.measurementStatus.multipathEstimateIsValid = bool(v)
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|           elif k == "directionValid":
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|             sv.measurementStatus.directionIsValid = bool(v)
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|           elif k == "goodParity":
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|             setattr(sv, k, bool(v))
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|           elif k == "measurementStatus":
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|             for kk,vv in measurementStatusFields.items():
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|               setattr(sv.measurementStatus, kk, bool(v & (1<<vv)))
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|           else:
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|             setattr(sv, k, v)
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|       pm.send('qcomGnss', msg)
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|     elif log_type == LOG_GNSS_POSITION_REPORT:
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|       report = unpack_position(log_payload)
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|       if report["u_PosSource"] != 2:
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|         continue
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|       vNED = [report["q_FltVelEnuMps[1]"], report["q_FltVelEnuMps[0]"], -report["q_FltVelEnuMps[2]"]]
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|       vNEDsigma = [report["q_FltVelSigmaMps[1]"], report["q_FltVelSigmaMps[0]"], -report["q_FltVelSigmaMps[2]"]]
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| 
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|       msg = messaging.new_message('gpsLocation')
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|       gps = msg.gpsLocation
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|       gps.latitude = report["t_DblFinalPosLatLon[0]"] * 180/math.pi
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|       gps.longitude = report["t_DblFinalPosLatLon[1]"] * 180/math.pi
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|       gps.altitude = report["q_FltFinalPosAlt"]
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|       gps.speed = math.sqrt(sum([x**2 for x in vNED]))
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|       gps.bearingDeg = report["q_FltHeadingRad"] * 180/math.pi
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|       gps.unixTimestampMillis = GPSTime(report['w_GpsWeekNumber'],
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|                                         1e-3*report['q_GpsFixTimeMs']).as_unix_timestamp()*1e3
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|       gps.source = log.GpsLocationData.SensorSource.qcomdiag
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|       gps.vNED = vNED
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|       gps.verticalAccuracy = report["q_FltVdop"]
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|       gps.bearingAccuracyDeg = report["q_FltHeadingUncRad"] * 180/math.pi
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|       gps.speedAccuracy = math.sqrt(sum([x**2 for x in vNEDsigma]))
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|       # quectel gps verticalAccuracy is clipped to 500, set invalid if so
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|       gps.flags = 1 if gps.verticalAccuracy != 500 else 0
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| 
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|       pm.send('gpsLocation', msg)
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| 
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|     elif log_type == LOG_GNSS_OEMDRE_SVPOLY_REPORT:
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|       msg = messaging.new_message('qcomGnss')
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|       dat = unpack_svpoly(log_payload)
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|       dat = relist(dat)
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|       gnss = msg.qcomGnss
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|       gnss.logTs = log_time
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|       gnss.init('drSvPoly')
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|       poly = gnss.drSvPoly
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|       for k,v in dat.items():
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|         if k == "version":
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|           assert v == 2
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|         elif k == "flags":
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|           pass
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|         else:
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|           setattr(poly, k, v)
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|       pm.send('qcomGnss', msg)
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| 
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|     elif log_type in [LOG_GNSS_GPS_MEASUREMENT_REPORT, LOG_GNSS_GLONASS_MEASUREMENT_REPORT]:
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|       msg = messaging.new_message('qcomGnss')
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| 
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|       gnss = msg.qcomGnss
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|       gnss.logTs = log_time
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|       gnss.init('measurementReport')
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|       report = gnss.measurementReport
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| 
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|       if log_type == LOG_GNSS_GPS_MEASUREMENT_REPORT:
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|         dat = unpack_gps_meas(log_payload)
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|         sats = log_payload[size_gps_meas:]
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|         unpack_meas_sv, size_meas_sv = unpack_gps_meas_sv, size_gps_meas_sv
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|         report.source = 0  # gps
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|         measurement_status_fields = (measurementStatusFields.items(), measurementStatusGPSFields.items())
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|       elif log_type == LOG_GNSS_GLONASS_MEASUREMENT_REPORT:
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|         dat = unpack_glonass_meas(log_payload)
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|         sats = log_payload[size_glonass_meas:]
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|         unpack_meas_sv, size_meas_sv = unpack_glonass_meas_sv, size_glonass_meas_sv
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|         report.source = 1  # glonass
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|         measurement_status_fields = (measurementStatusFields.items(), measurementStatusGlonassFields.items())
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|       else:
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|         assert False
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| 
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|       for k,v in dat.items():
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|         if k == "version":
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|           assert v == 0
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|         elif k == "week":
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|           report.gpsWeek = v
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|         elif k == "svCount":
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|           pass
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|         else:
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|           setattr(report, k, v)
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|       report.init('sv', dat['svCount'])
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|       if dat['svCount'] > 0:
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|         assert len(sats)//dat['svCount'] == size_meas_sv
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|         for i in range(dat['svCount']):
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|           sv = report.sv[i]
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|           sv.init('measurementStatus')
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|           sat = unpack_meas_sv(sats[size_meas_sv*i:size_meas_sv*(i+1)])
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|           for k,v in sat.items():
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|             if k == "parityErrorCount":
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|               sv.gpsParityErrorCount = v
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|             elif k == "frequencyIndex":
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|               sv.glonassFrequencyIndex = v
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|             elif k == "hemmingErrorCount":
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|               sv.glonassHemmingErrorCount = v
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|             elif k == "measurementStatus":
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|               for kk,vv in itertools.chain(*measurement_status_fields):
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|                 setattr(sv.measurementStatus, kk, bool(v & (1<<vv)))
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|             elif k == "miscStatus":
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|               for kk,vv in miscStatusFields.items():
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|                 setattr(sv.measurementStatus, kk, bool(v & (1<<vv)))
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|             elif k == "pad":
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|               pass
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|             else:
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|               setattr(sv, k, v)
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| 
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|       pm.send('qcomGnss', msg)
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| 
 | |
| if __name__ == "__main__":
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|   main()
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| 
 |