openpilot is an open source driver assistance system. openpilot performs the functions of Automated Lane Centering and Adaptive Cruise Control for over 200 supported car makes and models.
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#!/usr/bin/env python3
import unittest
from opendbc.car.nissan.values import NissanSafetyFlags
from opendbc.car.structs import CarParams
from opendbc.safety.tests.libsafety import libsafety_py
import opendbc.safety.tests.common as common
from opendbc.safety.tests.common import CANPackerPanda
class TestNissanSafety(common.PandaCarSafetyTest, common.AngleSteeringSafetyTest):
TX_MSGS = [[0x169, 0], [0x2b1, 0], [0x4cc, 0], [0x20b, 2], [0x280, 2]]
GAS_PRESSED_THRESHOLD = 3
RELAY_MALFUNCTION_ADDRS = {0: (0x169, 0x2b1, 0x4cc), 2: (0x280,)}
FWD_BLACKLISTED_ADDRS = {0: [0x280], 2: [0x169, 0x2b1, 0x4cc]}
EPS_BUS = 0
CRUISE_BUS = 2
# Angle control limits
STEER_ANGLE_MAX = 600 # deg, reasonable limit
DEG_TO_CAN = 100
ANGLE_RATE_BP = [0., 5., 15.]
ANGLE_RATE_UP = [5., .8, .15] # windup limit
ANGLE_RATE_DOWN = [5., 3.5, .4] # unwind limit
def setUp(self):
self.packer = CANPackerPanda("nissan_x_trail_2017_generated")
self.safety = libsafety_py.libsafety
self.safety.set_safety_hooks(CarParams.SafetyModel.nissan, 0)
self.safety.init_tests()
def _angle_cmd_msg(self, angle: float, enabled: bool):
values = {"DESIRED_ANGLE": angle, "LKA_ACTIVE": 1 if enabled else 0}
return self.packer.make_can_msg_panda("LKAS", 0, values)
def _angle_meas_msg(self, angle: float):
values = {"STEER_ANGLE": angle}
return self.packer.make_can_msg_panda("STEER_ANGLE_SENSOR", self.EPS_BUS, values)
def _pcm_status_msg(self, enable):
values = {"CRUISE_ENABLED": enable}
return self.packer.make_can_msg_panda("CRUISE_STATE", self.CRUISE_BUS, values)
def _speed_msg(self, speed):
values = {"WHEEL_SPEED_%s" % s: speed * 3.6 for s in ["RR", "RL"]}
return self.packer.make_can_msg_panda("WHEEL_SPEEDS_REAR", self.EPS_BUS, values)
def _user_brake_msg(self, brake):
values = {"USER_BRAKE_PRESSED": brake}
return self.packer.make_can_msg_panda("DOORS_LIGHTS", self.EPS_BUS, values)
def _user_gas_msg(self, gas):
values = {"GAS_PEDAL": gas}
return self.packer.make_can_msg_panda("GAS_PEDAL", self.EPS_BUS, values)
def _acc_button_cmd(self, cancel=0, propilot=0, flw_dist=0, _set=0, res=0):
no_button = not any([cancel, propilot, flw_dist, _set, res])
values = {"CANCEL_BUTTON": cancel, "PROPILOT_BUTTON": propilot,
"FOLLOW_DISTANCE_BUTTON": flw_dist, "SET_BUTTON": _set,
"RES_BUTTON": res, "NO_BUTTON_PRESSED": no_button}
return self.packer.make_can_msg_panda("CRUISE_THROTTLE", 2, values)
def test_acc_buttons(self):
btns = [
("cancel", True),
("propilot", False),
("flw_dist", False),
("_set", False),
("res", False),
(None, False),
]
for controls_allowed in (True, False):
for btn, should_tx in btns:
self.safety.set_controls_allowed(controls_allowed)
args = {} if btn is None else {btn: 1}
tx = self._tx(self._acc_button_cmd(**args))
self.assertEqual(tx, should_tx)
class TestNissanSafetyAltEpsBus(TestNissanSafety):
"""Altima uses different buses"""
EPS_BUS = 1
CRUISE_BUS = 1
def setUp(self):
self.packer = CANPackerPanda("nissan_x_trail_2017_generated")
self.safety = libsafety_py.libsafety
self.safety.set_safety_hooks(CarParams.SafetyModel.nissan, NissanSafetyFlags.ALT_EPS_BUS)
self.safety.init_tests()
class TestNissanLeafSafety(TestNissanSafety):
def setUp(self):
self.packer = CANPackerPanda("nissan_leaf_2018_generated")
self.safety = libsafety_py.libsafety
self.safety.set_safety_hooks(CarParams.SafetyModel.nissan, 0)
self.safety.init_tests()
def _user_brake_msg(self, brake):
values = {"USER_BRAKE_PRESSED": brake}
return self.packer.make_can_msg_panda("CRUISE_THROTTLE", 0, values)
def _user_gas_msg(self, gas):
values = {"GAS_PEDAL": gas}
return self.packer.make_can_msg_panda("CRUISE_THROTTLE", 0, values)
# TODO: leaf should use its own safety param
def test_acc_buttons(self):
pass
if __name__ == "__main__":
unittest.main()