panda/tests/safety/test_volkswagen.py

227 lines
8.0 KiB
Python

#!/usr/bin/env python3
import unittest
import numpy as np
from panda import Panda
from panda.tests.safety import libpandasafety_py
from panda.tests.safety.common import test_relay_malfunction, make_msg, test_manually_enable_controls_allowed, test_spam_can_buses
MAX_RATE_UP = 4
MAX_RATE_DOWN = 10
MAX_STEER = 250
MAX_RT_DELTA = 75
RT_INTERVAL = 250000
DRIVER_TORQUE_ALLOWANCE = 80
DRIVER_TORQUE_FACTOR = 3
TX_MSGS = [[0x126, 0], [0x12B, 0], [0x12B, 2], [0x397, 0]]
def sign(a):
if a > 0:
return 1
else:
return -1
class TestVolkswagenSafety(unittest.TestCase):
@classmethod
def setUp(cls):
cls.safety = libpandasafety_py.libpandasafety
cls.safety.set_safety_hooks(Panda.SAFETY_VOLKSWAGEN, 0)
cls.safety.init_tests_volkswagen()
def _set_prev_torque(self, t):
self.safety.set_volkswagen_desired_torque_last(t)
self.safety.set_volkswagen_rt_torque_last(t)
def _torque_driver_msg(self, torque):
to_send = make_msg(0, 0x9F)
t = abs(torque)
to_send[0].RDHR = ((t & 0x1FFF) << 8)
if torque < 0:
to_send[0].RDHR |= 0x1 << 23
return to_send
def _torque_msg(self, torque):
to_send = make_msg(0, 0x126)
t = abs(torque)
to_send[0].RDLR = (t & 0xFFF) << 16
if torque < 0:
to_send[0].RDLR |= 0x1 << 31
return to_send
def _gas_msg(self, gas):
to_send = make_msg(0, 0x121)
to_send[0].RDLR = (gas & 0xFF) << 12
return to_send
def _button_msg(self, bit):
to_send = make_msg(2, 0x12B)
to_send[0].RDLR = 1 << bit
return to_send
def test_spam_can_buses(self):
test_spam_can_buses(self, TX_MSGS)
def test_relay_malfunction(self):
test_relay_malfunction(self, 0x126)
def test_prev_gas(self):
for g in range(0, 256):
self.safety.safety_rx_hook(self._gas_msg(g))
self.assertEqual(g, self.safety.get_volkswagen_gas_prev())
def test_default_controls_not_allowed(self):
self.assertFalse(self.safety.get_controls_allowed())
def test_enable_control_allowed_from_cruise(self):
to_push = make_msg(0, 0x122)
to_push[0].RDHR = 0x30000000
self.safety.safety_rx_hook(to_push)
self.assertTrue(self.safety.get_controls_allowed())
def test_disable_control_allowed_from_cruise(self):
to_push = make_msg(0, 0x122)
self.safety.set_controls_allowed(1)
self.safety.safety_rx_hook(to_push)
self.assertFalse(self.safety.get_controls_allowed())
def test_disengage_on_gas(self):
self.safety.safety_rx_hook(self._gas_msg(0))
self.safety.set_controls_allowed(True)
self.safety.safety_rx_hook(self._gas_msg(1))
self.assertFalse(self.safety.get_controls_allowed())
def test_allow_engage_with_gas_pressed(self):
self.safety.safety_rx_hook(self._gas_msg(1))
self.safety.set_controls_allowed(True)
self.safety.safety_rx_hook(self._gas_msg(1))
self.assertTrue(self.safety.get_controls_allowed())
self.safety.safety_rx_hook(self._gas_msg(1))
self.assertTrue(self.safety.get_controls_allowed())
def test_steer_safety_check(self):
for enabled in [0, 1]:
for t in range(-500, 500):
self.safety.set_controls_allowed(enabled)
self._set_prev_torque(t)
if abs(t) > MAX_STEER or (not enabled and abs(t) > 0):
self.assertFalse(self.safety.safety_tx_hook(self._torque_msg(t)))
else:
self.assertTrue(self.safety.safety_tx_hook(self._torque_msg(t)))
def test_manually_enable_controls_allowed(self):
test_manually_enable_controls_allowed(self)
def test_spam_cancel_safety_check(self):
BIT_CANCEL = 13
BIT_RESUME = 19
BIT_SET = 16
self.safety.set_controls_allowed(0)
self.assertTrue(self.safety.safety_tx_hook(self._button_msg(BIT_CANCEL)))
self.assertFalse(self.safety.safety_tx_hook(self._button_msg(BIT_RESUME)))
self.assertFalse(self.safety.safety_tx_hook(self._button_msg(BIT_SET)))
# do not block resume if we are engaged already
self.safety.set_controls_allowed(1)
self.assertTrue(self.safety.safety_tx_hook(self._button_msg(BIT_RESUME)))
def test_non_realtime_limit_up(self):
self.safety.set_volkswagen_torque_driver(0, 0)
self.safety.set_controls_allowed(True)
self._set_prev_torque(0)
self.assertTrue(self.safety.safety_tx_hook(self._torque_msg(MAX_RATE_UP)))
self._set_prev_torque(0)
self.assertTrue(self.safety.safety_tx_hook(self._torque_msg(-MAX_RATE_UP)))
self._set_prev_torque(0)
self.assertFalse(self.safety.safety_tx_hook(self._torque_msg(MAX_RATE_UP + 1)))
self.safety.set_controls_allowed(True)
self._set_prev_torque(0)
self.assertFalse(self.safety.safety_tx_hook(self._torque_msg(-MAX_RATE_UP - 1)))
def test_non_realtime_limit_down(self):
self.safety.set_volkswagen_torque_driver(0, 0)
self.safety.set_controls_allowed(True)
def test_against_torque_driver(self):
self.safety.set_controls_allowed(True)
for sign in [-1, 1]:
for t in np.arange(0, DRIVER_TORQUE_ALLOWANCE + 1, 1):
t *= -sign
self.safety.set_volkswagen_torque_driver(t, t)
self._set_prev_torque(MAX_STEER * sign)
self.assertTrue(self.safety.safety_tx_hook(self._torque_msg(MAX_STEER * sign)))
self.safety.set_volkswagen_torque_driver(DRIVER_TORQUE_ALLOWANCE + 1, DRIVER_TORQUE_ALLOWANCE + 1)
self.assertFalse(self.safety.safety_tx_hook(self._torque_msg(-MAX_STEER)))
# spot check some individual cases
for sign in [-1, 1]:
driver_torque = (DRIVER_TORQUE_ALLOWANCE + 10) * sign
torque_desired = (MAX_STEER - 10 * DRIVER_TORQUE_FACTOR) * sign
delta = 1 * sign
self._set_prev_torque(torque_desired)
self.safety.set_volkswagen_torque_driver(-driver_torque, -driver_torque)
self.assertTrue(self.safety.safety_tx_hook(self._torque_msg(torque_desired)))
self._set_prev_torque(torque_desired + delta)
self.safety.set_volkswagen_torque_driver(-driver_torque, -driver_torque)
self.assertFalse(self.safety.safety_tx_hook(self._torque_msg(torque_desired + delta)))
self._set_prev_torque(MAX_STEER * sign)
self.safety.set_volkswagen_torque_driver(-MAX_STEER * sign, -MAX_STEER * sign)
self.assertTrue(self.safety.safety_tx_hook(self._torque_msg((MAX_STEER - MAX_RATE_DOWN) * sign)))
self._set_prev_torque(MAX_STEER * sign)
self.safety.set_volkswagen_torque_driver(-MAX_STEER * sign, -MAX_STEER * sign)
self.assertTrue(self.safety.safety_tx_hook(self._torque_msg(0)))
self._set_prev_torque(MAX_STEER * sign)
self.safety.set_volkswagen_torque_driver(-MAX_STEER * sign, -MAX_STEER * sign)
self.assertFalse(self.safety.safety_tx_hook(self._torque_msg((MAX_STEER - MAX_RATE_DOWN + 1) * sign)))
def test_realtime_limits(self):
self.safety.set_controls_allowed(True)
for sign in [-1, 1]:
self.safety.init_tests_volkswagen()
self._set_prev_torque(0)
self.safety.set_volkswagen_torque_driver(0, 0)
for t in np.arange(0, MAX_RT_DELTA, 1):
t *= sign
self.assertTrue(self.safety.safety_tx_hook(self._torque_msg(t)))
self.assertFalse(self.safety.safety_tx_hook(self._torque_msg(sign * (MAX_RT_DELTA + 1))))
self._set_prev_torque(0)
for t in np.arange(0, MAX_RT_DELTA, 1):
t *= sign
self.assertTrue(self.safety.safety_tx_hook(self._torque_msg(t)))
# Increase timer to update rt_torque_last
self.safety.set_timer(RT_INTERVAL + 1)
self.assertTrue(self.safety.safety_tx_hook(self._torque_msg(sign * (MAX_RT_DELTA - 1))))
self.assertTrue(self.safety.safety_tx_hook(self._torque_msg(sign * (MAX_RT_DELTA + 1))))
def test_fwd_hook(self):
buss = list(range(0x0, 0x3))
msgs = list(range(0x1, 0x800))
blocked_msgs_0to2 = []
blocked_msgs_2to0 = [0x126, 0x397]
for b in buss:
for m in msgs:
if b == 0:
fwd_bus = -1 if m in blocked_msgs_0to2 else 2
elif b == 1:
fwd_bus = -1
elif b == 2:
fwd_bus = -1 if m in blocked_msgs_2to0 else 0
# assume len 8
self.assertEqual(fwd_bus, self.safety.safety_fwd_hook(b, make_msg(b, m, 8)))
if __name__ == "__main__":
unittest.main()