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# Copyright 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 Daniel Estevez
# <daniel@destevez.net>
# Copyright 2024 The Regents of the University of Colorado
#
# This file is part of gr-satellites
#
# SPDX-License-Identifier: GPL-3.0-or-later
#
from datetime import datetime
from construct import Adapter, BitsInteger, BitStruct, Container, Enum, \
Flag, GreedyBytes, If, Int8ub, Int16ub, Int32ub, \
Padding, RawCopy, Struct, Switch
from .ax25 import Header
from ..ccsds import space_packet as ccsds_space_packet
from .aepex_sw_stat import aepex_sw_stat
PrimaryHeader = BitStruct(
'VERSION' / BitsInteger(3),
'TYPE' / BitsInteger(1),
'SEC_HDR_FLAG' / BitsInteger(1),
'PKT_APID' / BitsInteger(11),
'SEQ_FLGS' / BitsInteger(2),
'SEQ_CTR' / BitsInteger(14),
'PKT_LEN' / BitsInteger(16),
)
SecondaryHeader = BitStruct(
'SHCOARSE' / BitsInteger(32),
'SHFINE' / BitsInteger(16)
)
aepex_70cm = Struct(
'ax25_header' / Header,
'primary_header' / PrimaryHeader,
'secondary_header' / If(
lambda c: c.primary_header.SEC_HDR_FLAG,
SecondaryHeader
),
'packet' / Switch(
lambda c: c.primary_header.PKT_APID,
{
0x01: aepex_sw_stat
},
default=GreedyBytes
)
)
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