#!/usr/bin/env python3 import os import time import cereal.messaging as messaging from cereal import car from panda import ALTERNATIVE_EXPERIENCE from openpilot.common.params import Params from openpilot.common.realtime import config_realtime_process, Priority, Ratekeeper, DT_CTRL from openpilot.common.swaglog import cloudlog from openpilot.selfdrive.boardd.boardd import can_list_to_can_capnp from openpilot.selfdrive.car.car_helpers import get_car, get_one_can from openpilot.selfdrive.car.interfaces import CarInterfaceBase REPLAY = "REPLAY" in os.environ class Car: CI: CarInterfaceBase def __init__(self, CI=None): self.POLL = True self.can_sock = messaging.sub_sock('can', timeout=20) self.sm = messaging.SubMaster(['pandaStates', 'carControl', 'controlsState'], poll='carControl' if self.POLL else None) self.pm = messaging.PubMaster(['sendcan', 'carState', 'carParams', 'carOutput']) self.can_rcv_timeout_counter = 0 # consecutive timeout count self.can_rcv_cum_timeout_counter = 0 # cumulative timeout count self.CC_prev = car.CarControl.new_message() self.controlsState_prev = car.CarState.new_message() self.last_actuators_output = car.CarControl.Actuators.new_message() self.params = Params() if CI is None: # wait for one pandaState and one CAN packet print("Waiting for CAN messages...") get_one_can(self.can_sock) num_pandas = len(messaging.recv_one_retry(self.sm.sock['pandaStates']).pandaStates) experimental_long_allowed = self.params.get_bool("ExperimentalLongitudinalEnabled") self.CI, self.CP = get_car(self.can_sock, self.pm.sock['sendcan'], experimental_long_allowed, num_pandas) else: self.CI, self.CP = CI, CI.CP # set alternative experiences from parameters disengage_on_accelerator = self.params.get_bool("DisengageOnAccelerator") self.CP.alternativeExperience = 0 if not disengage_on_accelerator: self.CP.alternativeExperience |= ALTERNATIVE_EXPERIENCE.DISABLE_DISENGAGE_ON_GAS openpilot_enabled_toggle = self.params.get_bool("OpenpilotEnabledToggle") controller_available = self.CI.CC is not None and openpilot_enabled_toggle and not self.CP.dashcamOnly self.CP.passive = not controller_available or self.CP.dashcamOnly if self.CP.passive: safety_config = car.CarParams.SafetyConfig.new_message() safety_config.safetyModel = car.CarParams.SafetyModel.noOutput self.CP.safetyConfigs = [safety_config] # Write previous route's CarParams prev_cp = self.params.get("CarParamsPersistent") if prev_cp is not None: self.params.put("CarParamsPrevRoute", prev_cp) # Write CarParams for controls and radard cp_bytes = self.CP.to_bytes() self.params.put("CarParams", cp_bytes) self.params.put_nonblocking("CarParamsCache", cp_bytes) self.params.put_nonblocking("CarParamsPersistent", cp_bytes) # card is driven by can recv, expected at 100Hz self.rk = Ratekeeper(100, print_delay_threshold=None) def state_update(self): """carState update loop, driven by can""" # Update carState from CAN can_strs = messaging.drain_sock_raw(self.can_sock, wait_for_one=True) cloudlog.timestamp('Received can') CS = self.CI.update(self.CC_prev, can_strs) if not self.POLL: self.sm.update(0) can_rcv_valid = len(can_strs) > 0 # Check for CAN timeout if not can_rcv_valid: self.can_rcv_timeout_counter += 1 self.can_rcv_cum_timeout_counter += 1 else: self.can_rcv_timeout_counter = 0 self.can_rcv_timeout = self.can_rcv_timeout_counter >= 5 if can_rcv_valid and REPLAY: self.can_log_mono_time = messaging.log_from_bytes(can_strs[0]).logMonoTime return CS def state_publish(self, CS: car.CarState): """carState and carParams publish loop""" # carParams - logged every 50 seconds (> 1 per segment) if (self.sm.frame % int(50. / DT_CTRL) == 0): cp_send = messaging.new_message('carParams') cp_send.valid = True cp_send.carParams = self.CP self.pm.send('carParams', cp_send) # publish new carOutput co_send = messaging.new_message('carOutput') co_send.valid = self.sm.all_checks(['carControl']) co_send.carOutput.actuatorsOutput = self.last_actuators_output self.pm.send('carOutput', co_send) # kick off controlsd step now while we actuate the latest carControl packet cs_send = messaging.new_message('carState') cs_send.valid = CS.canValid cs_send.carState = CS cs_send.carState.canRcvTimeout = self.can_rcv_timeout cs_send.carState.canErrorCounter = self.can_rcv_cum_timeout_counter cs_send.carState.cumLagMs = -self.rk.remaining * 1000. self.pm.send('carState', cs_send) cloudlog.timestamp('Sent carState') if self.POLL: # wait for latest carControl self.sm.update(20) def controls_update(self, CS: car.CarState, CC: car.CarControl): """control update loop, driven by carControl""" if self.sm.all_checks(['carControl']): # send car controls over can now_nanos = self.can_log_mono_time if REPLAY else int(time.monotonic() * 1e9) # TODO: CC shouldn't be builder self.last_actuators_output, can_sends = self.CI.apply(CC.as_builder(), now_nanos) self.pm.send('sendcan', can_list_to_can_capnp(can_sends, msgtype='sendcan', valid=CS.canValid)) self.CC_prev = CC def step(self): cloudlog.timestamp("Start card") CS = self.state_update() cloudlog.timestamp("State updated") self.state_publish(CS) cloudlog.timestamp("State published") controlsState = self.sm['controlsState'] if controlsState.initialized and not self.controlsState_prev.initialized: self.CI.init(self.CP, self.can_sock, self.pm.sock['sendcan']) cloudlog.timestamp("Initialized") if not self.CP.passive and controlsState.initialized: self.controls_update(CS, self.sm['carControl']) cloudlog.timestamp("Controls updated") self.controlsState_prev = controlsState def card_thread(self): while True: self.step() self.rk.monitor_time() def main(): config_realtime_process(4, Priority.CTRL_HIGH) car = Car() car.card_thread() if __name__ == "__main__": main()