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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import time
import pytest
from opendbc.car.structs import CarParams
from panda import Panda, PandaJungle
PANDA_SERIAL = "28002d000451323431333839"
JUNGLE_SERIAL = "26001c001451313236343430"
OBDC_PORT = 1
@pytest.fixture(autouse=True, scope="function")
def pj():
jungle = PandaJungle(JUNGLE_SERIAL)
jungle.flash()
jungle.reset()
jungle.set_ignition(False)
yield jungle
#jungle.set_panda_power(False)
jungle.close()
@pytest.fixture(scope="function")
def p(pj):
# note that the 3X's panda lib isn't updated, which
# shold be fine since it only uses stable APIs
pj.set_panda_power(True)
assert Panda.wait_for_panda(PANDA_SERIAL, 10)
p = Panda(PANDA_SERIAL)
p.flash()
p.reset()
yield p
p.close()
def setup_state(panda, jungle, state):
jungle.set_panda_power(0)
if state == "off":
wait_for_full_poweroff(jungle)
elif state == "normal boot":
jungle.set_panda_individual_power(OBDC_PORT, 1)
elif state == "QDL":
time.sleep(0.5)
jungle.set_panda_individual_power(OBDC_PORT, 1)
elif state == "ready to bootkick":
wait_for_full_poweroff(jungle)
jungle.set_panda_individual_power(OBDC_PORT, 1)
wait_for_boot(panda, jungle)
set_som_shutdown_flag(panda)
panda.set_safety_mode(CarParams.SafetyModel.silent)
panda.send_heartbeat()
wait_for_som_shutdown(panda, jungle)
else:
raise ValueError(f"unkown state: {state}")
def wait_for_som_shutdown(panda, jungle):
st = time.monotonic()
while panda.read_som_gpio():
# can take a while for the SOM to fully shutdown
if time.monotonic() - st > 120:
raise Exception("SOM didn't shutdown in time")
if check_som_boot_flag(panda):
raise Exception(f"SOM rebooted instead of shutdown: {time.monotonic() - st}s")
time.sleep(0.5)
dt = time.monotonic() - st
print("waiting for shutdown", round(dt))
dt = time.monotonic() - st
print(f"took {dt:.2f}s for SOM to shutdown")
def wait_for_full_poweroff(jungle, timeout=30):
st = time.monotonic()
time.sleep(15)
while PANDA_SERIAL in Panda.list():
if time.monotonic() - st > timeout:
raise Exception("took too long for device to turn off")
health = jungle.health()
assert all(health[f"ch{i}_power"] < 0.1 for i in range(1, 7))
def check_som_boot_flag(panda):
h = panda.health()
return h['safety_mode'] == CarParams.SafetyModel.elm327 and h['safety_param'] == 30
def set_som_shutdown_flag(panda):
panda.set_can_data_speed_kbps(0, 1000)
def wait_for_boot(panda, jungle, reset_expected=False, bootkick=False, timeout=120):
st = time.monotonic()
Panda.wait_for_panda(PANDA_SERIAL, timeout)
panda.reconnect()
if bootkick:
assert panda.health()['uptime'] > 20
else:
assert panda.health()['uptime'] < 3
for i in range(3):
assert not check_som_boot_flag(panda)
time.sleep(1)
# wait for SOM to bootup
while not check_som_boot_flag(panda):
if time.monotonic() - st > timeout:
raise Exception("SOM didn't boot in time")
time.sleep(1.0)
assert panda.health()['som_reset_triggered'] == reset_expected
def test_cold_boot(p, pj):
setup_state(p, pj, "off")
setup_state(p, pj, "normal boot")
wait_for_boot(p, pj)
def test_bootkick_ignition_line(p, pj):
setup_state(p, pj, "ready to bootkick")
pj.set_ignition(True)
wait_for_boot(p, pj, bootkick=True)
@pytest.mark.skip("test isn't reliable yet")
def test_bootkick_can_ignition(p, pj):
setup_state(p, pj, "ready to bootkick")
for _ in range(10):
# Mazda ignition signal
pj.can_send(0x9E, b'\xc0\x00\x00\x00\x00\x00\x00\x00', 0)
time.sleep(0.5)
wait_for_boot(p, pj, bootkick=True)
def test_recovery_from_qdl(p, pj):
setup_state(p, pj, "ready to bootkick")
# put into QDL using the FORCE_USB_BOOT pin
for i in range(10):
pj.set_header_pin(i, 1)
# try to boot
time.sleep(1)
pj.set_ignition(True)
time.sleep(3)
# release FORCE_USB_BOOT
for i in range(10):
pj.set_header_pin(i, 0)
# normally, this GPIO is set immediately since it's first enabled in the ABL
for i in range(17):
assert not p.read_som_gpio()
time.sleep(1)
# should boot after 45s
wait_for_boot(p, pj, reset_expected=True, bootkick=True, timeout=120)