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secplus_v2_tx.grc
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secplus_v2_tx.grc
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options:
parameters:
author: ''
catch_exceptions: 'True'
category: '[GRC Hier Blocks]'
cmake_opt: ''
comment: ''
copyright: ''
description: ''
gen_cmake: 'On'
gen_linking: dynamic
generate_options: no_gui
hier_block_src_path: '.:'
id: secplus_v2_tx
max_nouts: '0'
output_language: python
placement: (0,0)
qt_qss_theme: ''
realtime_scheduling: ''
run: 'True'
run_command: '{python} -u {filename}'
run_options: run
sizing_mode: fixed
thread_safe_setters: ''
title: ''
window_size: (1000,1000)
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [8, 12.0]
rotation: 0
state: enabled
blocks:
- name: samp_rate
id: variable
parameters:
comment: ''
value: 2e6
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [8, 244]
rotation: 0
state: enabled
- name: seq
id: variable
parameters:
comment: ''
value: '[0]*200 + secplus.encode_v2_manchester(rolling, fixed, None if data ==
-1 else data)*3 + [0]*200'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [8, 180]
rotation: 0
state: enabled
- name: analog_sig_source_x_0
id: analog_sig_source_x
parameters:
affinity: ''
alias: ''
amp: '0.9'
comment: ''
freq: 300e3
maxoutbuf: '0'
minoutbuf: '0'
offset: '0'
phase: '0'
samp_rate: samp_rate
showports: 'False'
type: complex
waveform: analog.GR_COS_WAVE
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [776, 292.0]
rotation: 180
state: enabled
- name: blocks_multiply_xx_0
id: blocks_multiply_xx
parameters:
affinity: ''
alias: ''
comment: ''
maxoutbuf: '0'
minoutbuf: '0'
num_inputs: '2'
type: complex
vlen: '1'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [632, 304.0]
rotation: 180
state: enabled
- name: blocks_repeat_0
id: blocks_repeat
parameters:
affinity: ''
alias: ''
comment: ''
interp: '500'
maxoutbuf: '0'
minoutbuf: '0'
type: complex
vlen: '1'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [392, 172.0]
rotation: 0
state: enabled
- name: blocks_vector_source_x_0
id: blocks_vector_source_x
parameters:
affinity: ''
alias: ''
comment: ''
maxoutbuf: '0'
minoutbuf: '0'
repeat: 'False'
tags: '[]'
type: complex
vector: seq
vlen: '1'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [232, 156.0]
rotation: 0
state: enabled
- name: data
id: parameter
parameters:
alias: ''
comment: ''
hide: none
label: Data
short_id: ''
type: intx
value: '-1'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [696, 12.0]
rotation: 0
state: true
- name: fixed
id: parameter
parameters:
alias: ''
comment: ''
hide: none
label: Fixed code
short_id: ''
type: intx
value: '1234567890'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [576, 12.0]
rotation: 0
state: true
- name: freq
id: parameter
parameters:
alias: ''
comment: ''
hide: none
label: Frequency
short_id: f
type: intx
value: '315000000'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [328, 12.0]
rotation: 0
state: true
- name: osmosdr_sink_0
id: osmosdr_sink
parameters:
affinity: ''
alias: ''
ant0: ''
ant1: ''
ant10: ''
ant11: ''
ant12: ''
ant13: ''
ant14: ''
ant15: ''
ant16: ''
ant17: ''
ant18: ''
ant19: ''
ant2: ''
ant20: ''
ant21: ''
ant22: ''
ant23: ''
ant24: ''
ant25: ''
ant26: ''
ant27: ''
ant28: ''
ant29: ''
ant3: ''
ant30: ''
ant31: ''
ant4: ''
ant5: ''
ant6: ''
ant7: ''
ant8: ''
ant9: ''
args: ''
bb_gain0: '0'
bb_gain1: '20'
bb_gain10: '20'
bb_gain11: '20'
bb_gain12: '20'
bb_gain13: '20'
bb_gain14: '20'
bb_gain15: '20'
bb_gain16: '20'
bb_gain17: '20'
bb_gain18: '20'
bb_gain19: '20'
bb_gain2: '20'
bb_gain20: '20'
bb_gain21: '20'
bb_gain22: '20'
bb_gain23: '20'
bb_gain24: '20'
bb_gain25: '20'
bb_gain26: '20'
bb_gain27: '20'
bb_gain28: '20'
bb_gain29: '20'
bb_gain3: '20'
bb_gain30: '20'
bb_gain31: '20'
bb_gain4: '20'
bb_gain5: '20'
bb_gain6: '20'
bb_gain7: '20'
bb_gain8: '20'
bb_gain9: '20'
bw0: '0'
bw1: '0'
bw10: '0'
bw11: '0'
bw12: '0'
bw13: '0'
bw14: '0'
bw15: '0'
bw16: '0'
bw17: '0'
bw18: '0'
bw19: '0'
bw2: '0'
bw20: '0'
bw21: '0'
bw22: '0'
bw23: '0'
bw24: '0'
bw25: '0'
bw26: '0'
bw27: '0'
bw28: '0'
bw29: '0'
bw3: '0'
bw30: '0'
bw31: '0'
bw4: '0'
bw5: '0'
bw6: '0'
bw7: '0'
bw8: '0'
bw9: '0'
clock_source0: ''
clock_source1: ''
clock_source2: ''
clock_source3: ''
clock_source4: ''
clock_source5: ''
clock_source6: ''
clock_source7: ''
comment: ''
corr0: '0'
corr1: '0'
corr10: '0'
corr11: '0'
corr12: '0'
corr13: '0'
corr14: '0'
corr15: '0'
corr16: '0'
corr17: '0'
corr18: '0'
corr19: '0'
corr2: '0'
corr20: '0'
corr21: '0'
corr22: '0'
corr23: '0'
corr24: '0'
corr25: '0'
corr26: '0'
corr27: '0'
corr28: '0'
corr29: '0'
corr3: '0'
corr30: '0'
corr31: '0'
corr4: '0'
corr5: '0'
corr6: '0'
corr7: '0'
corr8: '0'
corr9: '0'
freq0: freq - 300e3
freq1: 100e6
freq10: 100e6
freq11: 100e6
freq12: 100e6
freq13: 100e6
freq14: 100e6
freq15: 100e6
freq16: 100e6
freq17: 100e6
freq18: 100e6
freq19: 100e6
freq2: 100e6
freq20: 100e6
freq21: 100e6
freq22: 100e6
freq23: 100e6
freq24: 100e6
freq25: 100e6
freq26: 100e6
freq27: 100e6
freq28: 100e6
freq29: 100e6
freq3: 100e6
freq30: 100e6
freq31: 100e6
freq4: 100e6
freq5: 100e6
freq6: 100e6
freq7: 100e6
freq8: 100e6
freq9: 100e6
gain0: '0'
gain1: '10'
gain10: '10'
gain11: '10'
gain12: '10'
gain13: '10'
gain14: '10'
gain15: '10'
gain16: '10'
gain17: '10'
gain18: '10'
gain19: '10'
gain2: '10'
gain20: '10'
gain21: '10'
gain22: '10'
gain23: '10'
gain24: '10'
gain25: '10'
gain26: '10'
gain27: '10'
gain28: '10'
gain29: '10'
gain3: '10'
gain30: '10'
gain31: '10'
gain4: '10'
gain5: '10'
gain6: '10'
gain7: '10'
gain8: '10'
gain9: '10'
if_gain0: '47'
if_gain1: '20'
if_gain10: '20'
if_gain11: '20'
if_gain12: '20'
if_gain13: '20'
if_gain14: '20'
if_gain15: '20'
if_gain16: '20'
if_gain17: '20'
if_gain18: '20'
if_gain19: '20'
if_gain2: '20'
if_gain20: '20'
if_gain21: '20'
if_gain22: '20'
if_gain23: '20'
if_gain24: '20'
if_gain25: '20'
if_gain26: '20'
if_gain27: '20'
if_gain28: '20'
if_gain29: '20'
if_gain3: '20'
if_gain30: '20'
if_gain31: '20'
if_gain4: '20'
if_gain5: '20'
if_gain6: '20'
if_gain7: '20'
if_gain8: '20'
if_gain9: '20'
maxoutbuf: '0'
minoutbuf: '0'
nchan: '1'
num_mboards: '1'
sample_rate: samp_rate
sync: sync
time_source0: ''
time_source1: ''
time_source2: ''
time_source3: ''
time_source4: ''
time_source5: ''
time_source6: ''
time_source7: ''
type: fc32
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [304, 244.0]
rotation: 180
state: enabled
- name: rolling
id: parameter
parameters:
alias: ''
comment: ''
hide: none
label: Rolling code
short_id: ''
type: intx
value: '123456789'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [448, 12.0]
rotation: 0
state: true
- name: secplus
id: epy_module
parameters:
alias: ''
comment: ''
source_code: "#\n# Copyright 2016,2020-2023 Clayton Smith ([email protected])\n\
#\n# This file is part of secplus.\n#\n# secplus is free software: you can redistribute\
\ it and/or modify\n# it under the terms of the GNU General Public License as\
\ published by\n# the Free Software Foundation, either version 3 of the License,\
\ or\n# (at your option) any later version.\n#\n# secplus is distributed in\
\ the hope that it will be useful,\n# but WITHOUT ANY WARRANTY; without even\
\ the implied warranty of\n# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\
\ See the\n# GNU General Public License for more details.\n#\n# You should\
\ have received a copy of the GNU General Public License\n# along with secplus.\
\ If not, see <http://www.gnu.org/licenses/>.\n#\n\n\"\"\"This module encodes\
\ and decodes Security+ and Security+ 2.0 rolling and fixed\ncodes, provides\
\ utility functions to prepare on-off keying sequences for\ntransmission, and\
\ pretty-prints the codes. It can be used to build stand-alone\napplications.\n\
\"\"\"\n\n\ndef encode(rolling, fixed):\n \"\"\"Encode a Security+ payload\
\ into 40 payload symbols\n\n Arguments:\n rolling -- the rolling code\n\
\ fixed -- the fixed code\n\n Raises a ValueError if the rolling or fixed\
\ code is too large.\n \"\"\"\n\n if rolling >= 2**32:\n raise\
\ ValueError(\"Rolling code must be less than 2^32\")\n if fixed >= 3**20:\n\
\ raise ValueError(\"Fixed code must be less than 3^20\")\n\n rolling\
\ = int(f\"{rolling & 0xfffffffe:032b}\"[::-1], 2)\n rolling_base3 = [0]\
\ * 20\n fixed_base3 = [0] * 20\n for i in range(19, -1, -1):\n \
\ rolling_base3[i] = rolling % 3\n rolling //= 3\n fixed_base3[i]\
\ = fixed % 3\n fixed //= 3\n code = []\n for i in range(20):\n\
\ if i in [0, 10]:\n acc = 0\n acc += rolling_base3[i]\n\
\ code.append(rolling_base3[i])\n acc += fixed_base3[i]\n \
\ code.append(acc % 3)\n return code\n\n\ndef decode(code):\n \"\"\"\
Decode a Security+ transmission and return the rolling and fixed codes.\n\n\
\ Arguments:\n code -- a list containing the 40 payload symbols from a\
\ pair of packets\n \"\"\"\n\n rolling = 0\n fixed = 0\n\n for i\
\ in range(0, 40, 2):\n if i in [0, 20]:\n acc = 0\n\n \
\ digit = code[i]\n rolling = (rolling * 3) + digit\n acc\
\ += digit\n\n digit = (code[i+1] - acc) % 3\n fixed = (fixed\
\ * 3) + digit\n acc += digit\n\n rolling = int(f\"{rolling:032b}\"\
[::-1], 2)\n return rolling, fixed\n\n\ndef _v2_calc_parity(fixed, data):\n\
\ data &= 0xffff0fff\n parity = (fixed >> 32) & 0xf\n for offset in\
\ range(0, 32, 4):\n parity ^= ((data >> offset) & 0xf)\n data |=\
\ (parity << 12)\n return data\n\n\ndef _v2_check_parity(fixed, data):\n\
\ parity = (fixed >> 32) & 0xf\n for offset in range(0, 32, 4):\n \
\ parity ^= ((data >> offset) & 0xf)\n if parity != 0:\n raise\
\ ValueError(\"Parity bits are incorrect\")\n\n\ndef _encode_v2_rolling(rolling):\n\
\ rolling = int(f\"{rolling:028b}\"[::-1], 2)\n rolling_base3 = [0] *\
\ 18\n for i in range(17, -1, -1):\n rolling_base3[i] = rolling %\
\ 3\n rolling //= 3\n rolling1 = rolling_base3[14:18] + rolling_base3[6:10]\
\ + rolling_base3[1:2]\n rolling2 = rolling_base3[10:14] + rolling_base3[2:6]\
\ + rolling_base3[0:1]\n return rolling1, rolling2\n\n\ndef _decode_v2_rolling(rolling1,\
\ rolling2):\n rolling_digits = rolling2[8:] + rolling1[8:]\n rolling_digits\
\ += rolling2[4:8] + rolling1[4:8]\n rolling_digits += rolling2[:4] + rolling1[:4]\n\
\n rolling = 0\n for digit in rolling_digits:\n rolling = (rolling\
\ * 3) + digit\n if rolling >= 2**28:\n raise ValueError(\"Rolling\
\ code was not in expected range\")\n return int(f\"{rolling:028b}\"[::-1],\
\ 2)\n\n\ndef _v2_combine_halves(rolling1, rolling2, fixed1, fixed2, data1,\
\ data2):\n rolling = _decode_v2_rolling(rolling1, rolling2)\n fixed =\
\ int(\"\".join(str(bit) for bit in fixed1 + fixed2), 2)\n if data1 is None:\n\
\ data = None\n else:\n data = int(\"\".join(str(bit) for bit\
\ in data1 + data2), 2)\n _v2_check_parity(fixed, data)\n return rolling,\
\ fixed, data\n\n\n_ORDER = {\n 0b0000: (0, 2, 1),\n 0b0001: (2, 0, 1),\n\
\ 0b0010: (0, 1, 2),\n 0b0100: (1, 2, 0),\n 0b0101: (1, 0, 2),\n \
\ 0b0110: (2, 1, 0),\n 0b1000: (1, 2, 0),\n 0b1001: (2, 1, 0),\n 0b1010:\
\ (0, 1, 2),\n}\n\n_INVERT = {\n 0b0000: (True, True, False),\n 0b0001:\
\ (False, True, False),\n 0b0010: (False, False, True),\n 0b0100: (True,\
\ True, True),\n 0b0101: (True, False, True),\n 0b0110: (False, True,\
\ True),\n 0b1000: (True, False, False),\n 0b1001: (False, False, False),\n\
\ 0b1010: (True, False, True),\n}\n\n\ndef _v2_scramble(indicator, parts):\n\
\ order = _ORDER[(indicator[0] << 3) | (indicator[1] << 2) | (indicator[2]\
\ << 1) | indicator[3]]\n invert = _INVERT[(indicator[4] << 3) | (indicator[5]\
\ << 2) | (indicator[6] << 1) | indicator[7]]\n\n parts_permuted = [parts[order[i]]\
\ for i in range(3)]\n for i in range(3):\n if invert[i]:\n \
\ parts_permuted[i] = [bit ^ 1 for bit in parts_permuted[i]]\n\n payload\
\ = []\n for i in range(len(parts_permuted[0])):\n payload += [parts_permuted[0][i],\
\ parts_permuted[1][i], parts_permuted[2][i]]\n return payload\n\n\ndef _v2_unscramble(indicator,\
\ payload):\n try:\n order = _ORDER[(indicator[0] << 3) | (indicator[1]\
\ << 2) | (indicator[2] << 1) | indicator[3]]\n invert = _INVERT[(indicator[4]\
\ << 3) | (indicator[5] << 2) | (indicator[6] << 1) | indicator[7]]\n except\
\ KeyError:\n raise ValueError(\"Illegal value for ternary bit\")\n\n\
\ parts_permuted = [payload[0::3], payload[1::3], payload[2::3]]\n for\
\ i in range(3):\n if invert[i]:\n parts_permuted[i] = [bit\
\ ^ 1 for bit in parts_permuted[i]]\n\n parts = [[], [], []]\n for i in\
\ range(3):\n parts[order[i]] = parts_permuted[i]\n\n return parts\n\
\n\ndef _encode_v2_half_parts(rolling, fixed, data):\n indicator = []\n \
\ for digit in rolling[:4]:\n indicator.append(digit >> 1)\n \
\ indicator.append(digit & 1)\n\n parts = [fixed[:10], fixed[10:], []]\n\
\ for digit in rolling[4:]:\n parts[2].append(digit >> 1)\n \
\ parts[2].append(digit & 1)\n\n if data is None:\n packet_type =\
\ 0\n if data is not None:\n packet_type = 1\n parts[0] +=\
\ data[:8]\n parts[1] += data[8:]\n for digit in rolling[:4]:\n\
\ parts[2].append(digit >> 1)\n parts[2].append(digit\
\ & 1)\n\n payload = _v2_scramble(indicator, parts)\n\n return packet_type,\
\ indicator, payload\n\n\ndef _decode_v2_half_parts(packet_type, indicator,\
\ payload):\n if packet_type == 0:\n payload_length = 30\n elif\
\ packet_type == 1:\n payload_length = 54\n elif packet_type == 2:\n\
\ raise ValueError(\"Unsupported packet type\")\n else:\n raise\
\ ValueError(\"Invalid packet type\")\n\n if len(payload) != payload_length:\n\
\ raise ValueError(\"Incorrect payload length\")\n\n parts = _v2_unscramble(indicator,\
\ payload)\n\n rolling = []\n for i in range(0, len(indicator), 2):\n\
\ rolling.append((indicator[i] << 1) | indicator[i+1])\n for i in\
\ range(0, len(parts[2]), 2):\n rolling.append((parts[2][i] << 1) | parts[2][i+1])\n\
\ if 3 in rolling:\n raise ValueError(\"Illegal value for ternary\
\ bit\")\n\n fixed = parts[0][:10] + parts[1][:10]\n\n if packet_type\
\ == 0:\n data = None\n elif packet_type == 1:\n if rolling[:4]\
\ != rolling[-4:]:\n raise ValueError(\"Last four ternary bits do\
\ not repeat first four\")\n rolling = rolling[:-4]\n data = parts[0][10:]\
\ + parts[1][10:]\n\n return rolling, fixed, data\n\n\ndef _v2_check_limits(rolling,\
\ fixed, data):\n if rolling >= 2**28:\n raise ValueError(\"Rolling\
\ code must be less than 2^28\")\n if fixed >= 2**40:\n raise ValueError(\"\
Fixed code must be less than 2^40\")\n if data is not None:\n if data\
\ >= 2**32:\n raise ValueError(\"Data must be less than 2^32\")\n\
\n\ndef _encode_v2_half(rolling, fixed, data):\n packet_type, indicator,\
\ payload = _encode_v2_half_parts(rolling, fixed, data)\n packet_type_bits\
\ = [packet_type >> 1, packet_type & 1]\n return packet_type_bits + indicator\
\ + payload\n\n\ndef encode_v2(rolling, fixed, data=None):\n \"\"\"Encode\
\ a Security+ 2.0 payload into 80 or 128 bits\n\n Arguments:\n rolling\
\ -- the rolling code (28 bits)\n fixed -- the fixed code (40 bits)\n \
\ data -- the data (32 bits, optional)\n\n Raises a ValueError if the rolling\
\ or fixed code is too large.\n \"\"\"\n\n _v2_check_limits(rolling, fixed,\
\ data)\n\n rolling1, rolling2 = _encode_v2_rolling(rolling)\n\n fixed_bits\
\ = [int(bit) for bit in f\"{fixed:040b}\"]\n fixed1 = fixed_bits[:20]\n\
\ fixed2 = fixed_bits[20:]\n\n if data is None:\n data1 = None\n\
\ data2 = None\n else:\n data = _v2_calc_parity(fixed, data)\n\
\ data_bits = [int(bit) for bit in f\"{data:032b}\"]\n data1 =\
\ data_bits[:16]\n data2 = data_bits[16:]\n\n return _encode_v2_half(rolling1,\
\ fixed1, data1) + _encode_v2_half(rolling2, fixed2, data2)\n\n\ndef _decode_v2_half(code):\n\
\ packet_type = (code[0] << 1) | code[1]\n indicator = code[2:10]\n \
\ payload = code[10:]\n return _decode_v2_half_parts(packet_type, indicator,\
\ payload)\n\n\ndef decode_v2(code):\n \"\"\"Decode a Security+ 2.0 transmission\
\ and return the rolling code, fixed\n code, and data.\n\n Arguments:\n\
\ code -- a list containing the 80 or 128 payload bits from a pair of packets\n\
\n Raises a ValueError if the payload bits are invalid for any reason.\n\
\ \"\"\"\n half_len = len(code) // 2\n rolling1, fixed1, data1 = _decode_v2_half(code[:half_len])\n\
\ rolling2, fixed2, data2 = _decode_v2_half(code[half_len:])\n return\
\ _v2_combine_halves(rolling1, rolling2, fixed1, fixed2, data1, data2)\n\n\n\
def _encode_wireline_half(rolling, fixed, data):\n _, indicator, payload\
\ = _encode_v2_half_parts(rolling, fixed, data)\n return indicator + [0,\
\ 0] + payload\n\n\ndef encode_wireline(rolling, fixed, data):\n \"\"\"Encode\
\ a Security+ 2.0 wireline payload into 19 bytes\n\n Arguments:\n rolling\
\ -- the rolling code (28 bits)\n fixed -- the fixed code (40 bits)\n \
\ data -- the data (32 bits)\n\n Raises a ValueError if the rolling code,\
\ fixed code, or data is too large.\n \"\"\"\n\n _v2_check_limits(rolling,\
\ fixed, data)\n\n rolling1, rolling2 = _encode_v2_rolling(rolling)\n\n \
\ fixed_bits = [int(bit) for bit in f\"{fixed:040b}\"]\n fixed1 = fixed_bits[:20]\n\
\ fixed2 = fixed_bits[20:]\n\n data = _v2_calc_parity(fixed, data)\n \
\ data_bits = [int(bit) for bit in f\"{data:032b}\"]\n data1 = data_bits[:16]\n\
\ data2 = data_bits[16:]\n\n payload_bits = _encode_wireline_half(rolling1,\
\ fixed1, data1) + _encode_wireline_half(rolling2, fixed2, data2)\n packet\
\ = [0x55, 0x01, 0x00]\n for n in range(len(payload_bits) // 8):\n \
\ byte = 0\n for bit in range(8):\n byte |= payload_bits[n\
\ * 8 + bit] << (7 - bit)\n packet.append(byte)\n return bytes(packet)\n\
\n\ndef _decode_wireline_half(code):\n if code[8:10] != [0, 0]:\n \
\ raise ValueError(\"Unexpected values for bits 8 and 9\")\n indicator =\
\ code[:8]\n payload = code[10:]\n return _decode_v2_half_parts(1, indicator,\
\ payload)\n\n\ndef decode_wireline(code):\n \"\"\"Decode a Security+ 2.0\
\ wireline transmission and return the rolling code,\n fixed code, and data.\n\
\n Arguments:\n code -- a bytes object with the 19 bytes of a serial packet\n\
\n Raises a ValueError if the payload bytes are invalid for any reason.\n\
\ \"\"\"\n if not isinstance(code, bytes):\n raise ValueError(\"\
Input must be bytes\")\n if len(code) != 19:\n raise ValueError(\"\
Input must be 19 bytes long\")\n if code[:3] != bytes([0x55, 0x01, 0x00]):\n\
\ raise ValueError(\"First three bytes must be 0x55, 0x01, 0x00\")\n\n\
\ code_bits = []\n for b in code[3:]:\n for bit in range(7, -1,\
\ -1):\n code_bits.append((b >> bit) & 1)\n\n half_len = len(code_bits)\
\ // 2\n rolling1, fixed1, data1 = _decode_wireline_half(code_bits[:half_len])\n\
\ rolling2, fixed2, data2 = _decode_wireline_half(code_bits[half_len:])\n\
\ return _v2_combine_halves(rolling1, rolling2, fixed1, fixed2, data1, data2)\n\
\n\n_OOK = {\n -1: [0, 0, 0, 0],\n 0: [0, 0, 0, 1],\n 1: [0, 0, 1,\
\ 1],\n 2: [0, 1, 1, 1]\n}\n\n\ndef encode_ook(rolling, fixed, fast=True):\n\
\ \"\"\"Encode a Security+ payload and produce an OOK stream for transmission\n\
\n The resulting pulses should be transmitted at a baud rate of 2000. That\
\ is,\n each 0 (off) or 1 (on) should be 0.5 ms long.\n\n Arguments:\n\
\ rolling -- the rolling code\n fixed -- the fixed code\n fast -- when\
\ True, shortens the time between packets\n \"\"\"\n\n code = encode(rolling,\
\ fixed)\n blank = [-1] * (10 if fast else 29)\n code = [0] + code[0:20]\
\ + blank + [2] + code[20:40] + blank\n ook_bits = []\n for symbol in\
\ code:\n ook_bits += _OOK[symbol]\n return ook_bits\n\n\ndef _manchester(code):\n\
\ output = []\n for bit in code:\n if bit == 0:\n output\
\ += [1, 0]\n else:\n output += [0, 1]\n return output\n\
\n\ndef encode_v2_manchester(rolling, fixed, data=None, fast=True):\n \"\"\
\"Encode a Security+ 2.0 payload and produce a Manchester stream for transmission\n\
\n The resulting pulses should be transmitted at a baud rate of 4000. That\
\ is,\n each 0 (off) or 1 (on) should be 0.25 ms long.\n\n Arguments:\n\
\ rolling -- the rolling code (28 bits)\n fixed -- the fixed code (40\
\ bits)\n data -- the data (32 bits, optional)\n fast -- when True, shortens\
\ the time between packets\n \"\"\"\n\n preamble = [0, 0, 0, 0, 0, 0,\
\ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1]\n code = encode_v2(rolling, fixed,\
\ data)\n half_len = len(code) // 2\n packet1 = preamble + [0, 0] + code[:half_len]\n\
\ packet2 = preamble + [0, 1] + code[half_len:]\n blank = [0] * (33 if\
\ fast else 400 - 2 * len(packet1))\n\n return _manchester(packet1) + blank\
\ + _manchester(packet2) + blank\n\n\ndef pretty(rolling, fixed):\n \"\"\"\
Pretty-print a Security+ rolling and fixed code\"\"\"\n return f\"Security+:\
\ rolling={rolling} fixed={fixed} ({_fixed_pretty(fixed)})\"\n\n\ndef _fixed_pretty(fixed):\n\
\ switch_id = fixed % 3\n id0 = (fixed // 3) % 3\n id1 = (fixed //\
\ 3**2) % 3\n\n result = f\"id1={id1} id0={id0} switch={switch_id}\"\n\n\
\ if id1 == 0:\n pad_id = (fixed // 3**3) % (3**7)\n result\
\ += f\" pad_id={pad_id}\"\n pin = (fixed // 3**10) % (3**9)\n \
\ if 0 <= pin <= 9999:\n result += f\" pin={pin:04}\"\n elif\
\ 10000 <= pin <= 11029:\n result += \" pin=enter\"\n pin_suffix\
\ = (fixed // 3**19) % 3\n if pin_suffix == 1:\n result +=\
\ \"#\"\n elif pin_suffix == 2:\n result += \"*\"\n else:\n\
\ remote_id = (fixed // 3**3)\n result += f\" remote_id={remote_id}\"\
\n if switch_id == 0:\n button = \"middle\"\n elif\
\ switch_id == 1:\n button = \"left\"\n else:\n \
\ button = \"right\"\n result += f\" button={button}\"\n\n return\
\ result\n\n\ndef pretty_v2(rolling, fixed, data=None):\n \"\"\"Pretty-print\
\ a Security+ 2.0 rolling code, fixed code, and data\"\"\"\n pretty = f\"\
Security+ 2.0: rolling=0x{rolling:07x} fixed=0x{fixed:010x} ({_fixed_pretty_v2(fixed)})\"\
\n if data is not None:\n pretty += f\" data=0x{data:08x} ({_data_pretty_v2(fixed,\
\ data)})\"\n return pretty\n\n\ndef _fixed_pretty_v2(fixed):\n button\
\ = (fixed >> 32) & 0xf\n remote_id = fixed & 0xf0ffffffff\n return f\"\
button={button} remote_id=0x{remote_id:010x}\"\n\n\ndef _data_pretty_v2(fixed,\
\ data):\n button = (fixed >> 32) & 0xf\n\n byte1 = data >> 24\n byte2\
\ = (data >> 16) & 0xff\n pin = (byte2 << 8) | byte1\n\n tail = data &\
\ 0xfff\n\n if button == 3:\n return f\"pin=enter tail=0x{tail:03x}\"\
\n else:\n if button == 1:\n suffix = \"*\"\n elif\
\ button == 2:\n suffix = \"#\"\n else:\n suffix\
\ = \"\"\n\n return f\"pin={pin:04}{suffix} tail=0x{tail:03x}\"\n\n\n\
_WIRELINE_COMMANDS = {\n # sent by opener\n 0x081: \"status\",\n 0x084:\
\ \"unknown_1\",\n 0x085: \"unknown_2\",\n 0x0a1: \"pair_3_resp\",\n \
\ 0x284: \"motor_on\",\n 0x393: \"learn_3_resp\",\n 0x401: \"pair_2_resp\"\
,\n 0x48c: \"openings\",\n\n # sent by switch\n 0x080: \"get_status\"\
,\n 0x0a0: \"pair_3\",\n 0x181: \"learn_2\",\n 0x18c: \"lock\",\n \
\ 0x280: \"open\",\n 0x281: \"light\",\n 0x285: \"motion\",\n 0x391:\
\ \"learn_1\",\n 0x392: \"learn_3\",\n 0x400: \"pair_2\",\n 0x48b:\
\ \"get_openings\",\n}\n\n_DOOR_STATUS = {\n 1: \"open\",\n 2: \"closed\"\
,\n 3: \"stopped\",\n 4: \"opening\",\n 5: \"closing\",\n}\n\n\ndef\
\ pretty_wireline(rolling, fixed, data):\n cmd = ((fixed >> 24) & 0xf00)\
\ | (data & 0xff)\n command_name = _WIRELINE_COMMANDS.get(cmd, \"<unknown>\"\
)\n\n nibble = (data >> 8) & 0xf\n byte1 = (data >> 16) & 0xff\n byte2\
\ = (data >> 24) & 0xff\n\n msg = \"\"\n if cmd == 0x080:\n msg\
\ = f\"byte2={byte2}\"\n elif cmd == 0x081:\n door = _DOOR_STATUS.get(nibble,\
\ \"<unknown>\")\n learn = (byte2 >> 5) & 1\n unk1 = (byte2 >>\
\ 4) & 1\n unk2 = (byte2 >> 2) & 1\n light = (byte2 >> 1) & 1\n\
\ lock = byte2 & 1\n blocked = (byte1 >> 6) & 1\n unk3\
\ = (byte1 >> 5) & 1\n msg = f\"door={door} learn={learn} light={light}\
\ lock={lock} blocked={blocked^1} unk1={unk1} unk2={unk2} unk3={unk3}\"\n \
\ elif cmd == 0x0a1:\n msg = f\"byte1={byte1}\"\n elif cmd == 0x181:\n\
\ msg = f\"nibble={nibble}\"\n elif cmd == 0x280:\n msg = \"\
pressed\" if byte1 == 1 else \"released\"\n elif cmd == 0x391:\n msg\
\ = f\"nibble={nibble}\"\n elif cmd == 0x393:\n msg = f\"nibble={nibble}\"\
\n elif cmd == 0x48c:\n openings = (byte1 << 8) | byte2\n msg\
\ = f\"number={openings}\"\n\n return f\"rolling=0x{rolling:07x} fixed=0x{fixed:010x}\
\ data=0x{data:08x} cmd=0x{cmd:03x} {command_name} {msg}\".strip()\n"
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [8, 92.0]
rotation: 0
state: enabled
- name: single_pole_iir_filter_xx_0
id: single_pole_iir_filter_xx
parameters:
affinity: ''
alias: ''
alpha: '0.2'
comment: ''
maxoutbuf: '0'
minoutbuf: '0'
type: complex
vlen: '1'
states:
bus_sink: false
bus_source: false
bus_structure: null
coordinate: [568, 172.0]
rotation: 0
state: enabled
connections:
- [analog_sig_source_x_0, '0', blocks_multiply_xx_0, '1']
- [blocks_multiply_xx_0, '0', osmosdr_sink_0, '0']
- [blocks_repeat_0, '0', single_pole_iir_filter_xx_0, '0']
- [blocks_vector_source_x_0, '0', blocks_repeat_0, '0']
- [single_pole_iir_filter_xx_0, '0', blocks_multiply_xx_0, '0']
metadata:
file_format: 1
grc_version: 3.10.9.2