eive-tmtc/eive_tmtc/tmtc/acs/gps.py
meggert d1fde6f1e5
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2023-10-09 15:43:16 +02:00

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Python

import datetime
import enum
import logging
import struct
from eive_tmtc.config.definitions import CustomServiceList
from eive_tmtc.pus_tm.defs import PrintWrapper
from tmtccmd.config import TmtcDefinitionWrapper, OpCodeEntry
from tmtccmd.config.tmtc import tmtc_definitions_provider
from tmtccmd.tc.pus_200_fsfw_mode import create_mode_command, Mode
from tmtccmd.tc import DefaultPusQueueHelper
from tmtccmd.tc.pus_3_fsfw_hk import (
make_sid,
create_request_one_hk_command,
create_enable_periodic_hk_command_with_interval_with_diag,
create_disable_periodic_hk_command_with_diag,
)
from tmtccmd.fsfw.tmtc_printer import FsfwTmTcPrinter
_LOGGER = logging.getLogger(__name__)
class GpsInfo:
MAX_SATELLITES = 30
class OpCode:
OFF = "off"
ON = "on"
REQ_CORE_HK = ["core_hk_request"]
ENABLE_CORE_HK = ["core_hk_enable"]
DISABLE_CORE_HK = ["core_hk_disable"]
REQ_SKYVIEW_HK = ["skyview_hk_request"]
ENABLE_SKYVIEW_HK = ["skyview_hk_enable"]
DISABLE_SKYVIEW_HK = ["skyview_hk_disable"]
RESET_GNSS = ["reset"]
class Info:
OFF = "Off"
ON = "On"
REQ_CORE_HK = "Request Core HK"
ENABLE_CORE_HK = "Enable Core HK"
DISABLE_CORE_HK = "Disable Core HK"
REQ_SKYVIEW_HK = "Request Skyview HK"
ENABLE_SKYVIEW_HK = "Enable Skyview HK"
DISABLE_SKYVIEW_HK = "Disable Skyview HK"
RESET_GNSS = "Reset GNSS using reset pin"
class SetId(enum.IntEnum):
CORE_HK = 0
SKYVIEW_HK = 1
@tmtc_definitions_provider
def add_gps_cmds(defs: TmtcDefinitionWrapper):
oce = OpCodeEntry()
oce.add(keys=OpCode.OFF, info=Info.OFF)
oce.add(keys=OpCode.ON, info=Info.ON)
oce.add(keys=OpCode.RESET_GNSS, info=Info.RESET_GNSS)
oce.add(keys=OpCode.REQ_CORE_HK, info=Info.REQ_CORE_HK)
oce.add(keys=OpCode.ENABLE_CORE_HK, info=Info.ENABLE_CORE_HK)
oce.add(keys=OpCode.DISABLE_CORE_HK, info=Info.DISABLE_CORE_HK)
oce.add(keys=OpCode.REQ_SKYVIEW_HK, info=Info.REQ_SKYVIEW_HK)
oce.add(keys=OpCode.ENABLE_SKYVIEW_HK, info=Info.ENABLE_SKYVIEW_HK)
oce.add(keys=OpCode.DISABLE_SKYVIEW_HK, info=Info.DISABLE_SKYVIEW_HK)
defs.add_service(
name=CustomServiceList.GPS_CTRL.value,
info="GPS/GNSS Controller",
op_code_entry=oce,
)
def pack_gps_command( # noqa: C901
object_id: bytes, q: DefaultPusQueueHelper, op_code: str
): # noqa: C901:
if op_code in OpCode.RESET_GNSS:
# TODO: This needs to be re-implemented
_LOGGER.warning("Reset pin handling needs to be re-implemented")
if op_code in OpCode.ENABLE_CORE_HK:
interval = float(input("Please specify interval in floating point seconds: "))
if interval <= 0:
raise ValueError("invalid interval")
q.add_log_cmd(f"GPS: {Info.ENABLE_CORE_HK}")
cmds = create_enable_periodic_hk_command_with_interval_with_diag(
diag=False,
sid=make_sid(object_id=object_id, set_id=SetId.CORE_HK),
interval_seconds=interval,
)
for cmd in cmds:
q.add_pus_tc(cmd)
if op_code in OpCode.DISABLE_CORE_HK:
q.add_log_cmd(f"gps: {Info.DISABLE_CORE_HK}")
q.add_pus_tc(
create_disable_periodic_hk_command_with_diag(
diag=False, sid=make_sid(object_id=object_id, set_id=SetId.CORE_HK)
)
)
if op_code in OpCode.REQ_CORE_HK:
q.add_log_cmd(f"GPS: {Info.REQ_CORE_HK}")
q.add_pus_tc(
create_request_one_hk_command(
sid=make_sid(object_id=object_id, set_id=SetId.CORE_HK)
)
)
if op_code in OpCode.ENABLE_SKYVIEW_HK:
interval = float(input("Please specify interval in floating point seconds: "))
if interval <= 0:
raise ValueError("invalid interval")
q.add_log_cmd(f"GPS: {Info.ENABLE_SKYVIEW_HK}")
cmds = create_enable_periodic_hk_command_with_interval_with_diag(
diag=False,
sid=make_sid(object_id=object_id, set_id=SetId.SKYVIEW_HK),
interval_seconds=interval,
)
for cmd in cmds:
q.add_pus_tc(cmd)
if op_code in OpCode.DISABLE_SKYVIEW_HK:
q.add_log_cmd(f"gps: {Info.DISABLE_SKYVIEW_HK}")
q.add_pus_tc(
create_disable_periodic_hk_command_with_diag(
diag=False, sid=make_sid(object_id=object_id, set_id=SetId.SKYVIEW_HK)
)
)
if op_code in OpCode.REQ_SKYVIEW_HK:
q.add_log_cmd(f"GPS: {Info.REQ_SKYVIEW_HK}")
q.add_pus_tc(
create_request_one_hk_command(
sid=make_sid(object_id=object_id, set_id=SetId.SKYVIEW_HK)
)
)
if op_code in OpCode.ON:
q.add_log_cmd(f"GPS: {Info.ON}")
q.add_pus_tc(create_mode_command(object_id, Mode.ON, 0))
if op_code in OpCode.OFF:
q.add_log_cmd(f"GPS: {Info.OFF}")
q.add_pus_tc(create_mode_command(object_id, Mode.OFF, 0))
def handle_gps_data(
pw: PrintWrapper,
set_id: int,
hk_data: bytes,
packet_time: datetime.datetime,
):
pw.ilog(_LOGGER, f"Received GPS CTRL HK with packet time {packet_time}")
match set_id:
case SetId.CORE_HK:
handle_core_data(pw, hk_data)
case SetId.SKYVIEW_HK:
handle_skyview_data(pw, hk_data)
def handle_core_data(pw: PrintWrapper, hk_data: bytes):
if len(hk_data) < 4 * 8 + 4 + 2 + 8:
pw.dlog(
f"GPS Core dataset with size {len(hk_data)} does not have expected size"
f" of {4*8+4+2+8} bytes"
)
return
current_idx = 0
fmt_str = "!ddddBBBHBBBBBI"
inc_len = struct.calcsize(fmt_str)
(
lat,
long,
alt,
speed,
fix,
sats_in_use,
sats_in_view,
year,
month,
day,
hours,
minutes,
seconds,
unix_seconds,
) = struct.unpack(fmt_str, hk_data[current_idx : current_idx + inc_len])
current_idx += inc_len
if year == 0:
date_string = "No date string, year is 0"
else:
date_string = datetime.datetime(
year=year, month=month, day=day, hour=hours, minute=minutes, second=seconds
)
pw.dlog(f"Lat: {lat} deg")
pw.dlog(f"Long: {long} deg")
pw.dlog(f"Altitude: {alt} m | Speed: {speed} m/s")
pw.dlog(
f"Fix Type: {fix} | Sats in View {sats_in_view} | Sats in Use {sats_in_use}"
)
pw.dlog(f"GNSS Date: {date_string}")
pw.dlog(f"Unix seconds {unix_seconds}")
FsfwTmTcPrinter.get_validity_buffer(
validity_buffer=hk_data[current_idx:], num_vars=14
)
def handle_skyview_data(pw: PrintWrapper, hk_data: bytes):
data_length = 8 + GpsInfo.MAX_SATELLITES * (8 + 3 * 2 + 1)
if len(hk_data) < data_length:
pw.dlog(
f"GPS Skyview dataset with size {len(hk_data)} does not have expected size"
f" of {data_length} bytes"
)
return
current_idx = 0
fmt_str_unix = "!d"
fmt_str_int16 = "!" + "h" * GpsInfo.MAX_SATELLITES
fmt_str_double = "!" + "d" * GpsInfo.MAX_SATELLITES
fmt_str_uint8 = "!" + "B" * GpsInfo.MAX_SATELLITES
inc_len_unix = struct.calcsize(fmt_str_unix)
inc_len_int16 = struct.calcsize(fmt_str_int16)
inc_len_double = struct.calcsize(fmt_str_double)
inc_len_uint8 = struct.calcsize(fmt_str_uint8)
unix = struct.unpack(
fmt_str_unix, hk_data[current_idx : current_idx + inc_len_unix]
)[0]
current_idx += inc_len_unix
prn_id = struct.unpack(
fmt_str_int16, hk_data[current_idx : current_idx + inc_len_int16]
)
current_idx += inc_len_int16
azimuth = struct.unpack(
fmt_str_int16, hk_data[current_idx : current_idx + inc_len_int16]
)
current_idx += inc_len_int16
elevation = struct.unpack(
fmt_str_int16, hk_data[current_idx : current_idx + inc_len_int16]
)
current_idx += inc_len_int16
signal_to_noise = struct.unpack(
fmt_str_double, hk_data[current_idx : current_idx + inc_len_double]
)
current_idx += inc_len_double
used = struct.unpack(
fmt_str_uint8, hk_data[current_idx : current_idx + inc_len_uint8]
)
current_idx += inc_len_uint8
pw.dlog(f"Skyview Time: {unix} unix-sec")
pw.dlog(
"{:<8} {:<8} {:<8} {:<8} {:<8}".format(
"PRN_ID", "AZ [°]", "EL [°]", "S2N [dBHz]", "USED"
)
)
for idx in range(GpsInfo.MAX_SATELLITES):
pw.dlog(
"{:<8} {:<8} {:<8} {:<8} {:<8}".format(
prn_id[idx],
azimuth[idx],
elevation[idx],
signal_to_noise[idx],
used[idx],
)
)
FsfwTmTcPrinter.get_validity_buffer(
validity_buffer=hk_data[current_idx:], num_vars=6
)