eive-tmtc/eive_tmtc/pus_tm/pus_demux.py
Robin Mueller 66db12796b
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2023-09-12 13:48:38 +02:00

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Python

"""Core EIVE TM handler module
"""
import logging
from eive_tmtc.config.object_ids import get_object_ids
from spacepackets.ecss import PusTelemetry
from spacepackets.ecss.pus_17_test import Service17Tm
from spacepackets.util import PrintFormats
from spacepackets.ccsds.time import CdsShortTimestamp
from tmtccmd.logging.pus import RawTmtcTimedLogWrapper
from tmtccmd.pus import VerificationWrapper
from tmtccmd.tm import Service20FsfwTm, Service200FsfwTm
from tmtccmd.tm.pus_20_fsfw_param import Service20ParamDumpWrapper
from tmtccmd.pus.s20_fsfw_param_defs import CustomSubservice as ParamSubservice
from tmtccmd.tm.pus_200_fsfw_mode import Subservice as ModeSubservice
from tmtccmd.fsfw.tmtc_printer import FsfwTmTcPrinter
from .defs import PrintWrapper
from .event_handler import handle_event_packet
from .verification_handler import handle_service_1_fsfw_packet, generic_retval_printout
from .hk_handler import handle_hk_packet
from .action_reply_handler import handle_action_reply
_LOGGER = logging.getLogger(__name__)
def pus_factory_hook( # noqa C901 : Complexity okay here
packet: bytes,
verif_wrapper: VerificationWrapper,
printer: FsfwTmTcPrinter,
raw_logger: RawTmtcTimedLogWrapper,
hk_level: int,
):
if len(packet) < 8:
_LOGGER.warning("Detected packet shorter than 8 bytes!")
return
try:
tm_packet = PusTelemetry.unpack(packet, CdsShortTimestamp.empty())
# _LOGGER.info(f"Sequence count: {tm_packet.seq_count}")
except ValueError as value_error:
_LOGGER.warning(f"{value_error}")
_LOGGER.warning("Could not generate PUS TM object from raw data")
_LOGGER.warning(f"Raw Packet: [{packet.hex(sep=',')}], REPR: {packet!r}")
return
service = tm_packet.service
obj_id_dict = get_object_ids()
pw = PrintWrapper(printer.file_logger)
dedicated_handler = True
if service == 1:
handle_service_1_fsfw_packet(wrapper=verif_wrapper, raw_tm=packet)
elif service == 3:
handle_hk_packet(
printer=printer, raw_tm=packet, obj_id_dict=obj_id_dict, hk_level=hk_level
)
elif service == 5:
handle_event_packet(raw_tm=packet, pw=pw)
elif service == 8:
handle_action_reply(raw_tm=packet, printer=printer, obj_id_dict=obj_id_dict)
elif service == 17:
tm_packet = Service17Tm.unpack(
data=packet, time_reader=CdsShortTimestamp.empty()
)
if tm_packet.subservice == 2:
verif_wrapper.dlog("Received Ping Reply TM[17,2]")
dedicated_handler = True
elif service == 20:
param_packet = Service20FsfwTm.unpack(
raw_telemetry=packet, time_reader=CdsShortTimestamp.empty()
)
if tm_packet.subservice == ParamSubservice.TM_DUMP_REPLY:
param_wrapper = Service20ParamDumpWrapper(param_tm=param_packet)
try:
param = param_wrapper.get_param()
obj = obj_id_dict.get(param_wrapper.param_tm.object_id)
pw.dlog(f"Received parameter dump TM from {obj}")
pw.dlog(f"Parameter: {param}")
if param.rows == 1 and param.columns == 1:
try:
scalar_param = param.parse_scalar_param()
if isinstance(scalar_param, int):
pw.dlog(f"Scalar integer parameter: {scalar_param}")
elif isinstance(scalar_param, float):
pw.dlog(f"Scalar floating point parameter: {scalar_param}")
except ValueError as e:
pw.dlog(f"received {e} trying to parse scalar parameter")
else:
# TODO: Could improve display further by actually displaying a matrix as a
# matrix using row and column information
pw.dlog(
"Received vector or matrix data:"
f" {param.param_raw.hex(sep=',')}"
)
except ValueError as e:
pw.dlog(f"received {e} when trying to parse parameters")
except NotImplementedError as e:
pw.dlog(f"received {e} when trying to parse parameters")
else:
pw.dlog(f"unknown subservice {tm_packet.subservice} for parameter service")
elif service == 200:
tm_packet = Service200FsfwTm.unpack(
raw_telemetry=packet, time_reader=CdsShortTimestamp.empty()
)
if tm_packet.subservice == ModeSubservice.TM_CANT_REACH_MODE:
obj_id = tm_packet.object_id
obj_id_obj = obj_id_dict.get(obj_id)
retval = tm_packet.return_value
string_list = generic_retval_printout(retval)
pw.dlog(f"Received Mode Reply from {obj_id_obj}: Can't reach mode.")
for string in string_list:
pw.dlog(f"Reason: {string}")
dedicated_handler = True
else:
dedicated_handler = False
else:
_LOGGER.info(f"The service {service} is not implemented in Telemetry Factory")
tm_packet.print_source_data(PrintFormats.HEX)
dedicated_handler = True
if not dedicated_handler and tm_packet is not None:
printer.handle_long_tm_print(packet_if=tm_packet, info_if=tm_packet)
raw_logger.log_tm(tm_packet)