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195 lines
6.7 KiB
195 lines
6.7 KiB
#!/usr/bin/env python3
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import os
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import time
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import cereal.messaging as messaging
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from cereal import car
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from panda import ALTERNATIVE_EXPERIENCE
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from openpilot.common.params import Params
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from openpilot.common.realtime import config_realtime_process, Priority, Ratekeeper, DT_CTRL
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from openpilot.selfdrive.boardd.boardd import can_list_to_can_capnp
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from openpilot.selfdrive.car.car_helpers import get_car, get_one_can
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from openpilot.selfdrive.car.interfaces import CarInterfaceBase
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from openpilot.selfdrive.controls.lib.events import Events
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REPLAY = "REPLAY" in os.environ
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EventName = car.CarEvent.EventName
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class Car:
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CI: CarInterfaceBase
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def __init__(self, CI=None):
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self.can_sock = messaging.sub_sock('can', timeout=20)
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self.sm = messaging.SubMaster(['pandaStates', 'carControl', 'onroadEvents'])
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self.pm = messaging.PubMaster(['sendcan', 'carState', 'carParams', 'carOutput'])
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self.can_rcv_timeout_counter = 0 # consecutive timeout count
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self.can_rcv_cum_timeout_counter = 0 # cumulative timeout count
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self.CC_prev = car.CarControl.new_message()
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self.CS_prev = car.CarState.new_message()
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self.initialized_prev = False
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self.last_actuators_output = car.CarControl.Actuators.new_message()
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self.params = Params()
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if CI is None:
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# wait for one pandaState and one CAN packet
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print("Waiting for CAN messages...")
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get_one_can(self.can_sock)
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num_pandas = len(messaging.recv_one_retry(self.sm.sock['pandaStates']).pandaStates)
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experimental_long_allowed = self.params.get_bool("ExperimentalLongitudinalEnabled")
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self.CI, self.CP = get_car(self.can_sock, self.pm.sock['sendcan'], experimental_long_allowed, num_pandas)
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else:
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self.CI, self.CP = CI, CI.CP
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# set alternative experiences from parameters
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self.disengage_on_accelerator = self.params.get_bool("DisengageOnAccelerator")
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self.CP.alternativeExperience = 0
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if not self.disengage_on_accelerator:
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self.CP.alternativeExperience |= ALTERNATIVE_EXPERIENCE.DISABLE_DISENGAGE_ON_GAS
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openpilot_enabled_toggle = self.params.get_bool("OpenpilotEnabledToggle")
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controller_available = self.CI.CC is not None and openpilot_enabled_toggle and not self.CP.dashcamOnly
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self.CP.passive = not controller_available or self.CP.dashcamOnly
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if self.CP.passive:
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safety_config = car.CarParams.SafetyConfig.new_message()
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safety_config.safetyModel = car.CarParams.SafetyModel.noOutput
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self.CP.safetyConfigs = [safety_config]
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# Write previous route's CarParams
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prev_cp = self.params.get("CarParamsPersistent")
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if prev_cp is not None:
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self.params.put("CarParamsPrevRoute", prev_cp)
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# Write CarParams for controls and radard
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cp_bytes = self.CP.to_bytes()
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self.params.put("CarParams", cp_bytes)
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self.params.put_nonblocking("CarParamsCache", cp_bytes)
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self.params.put_nonblocking("CarParamsPersistent", cp_bytes)
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self.events = Events()
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# card is driven by can recv, expected at 100Hz
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self.rk = Ratekeeper(100, print_delay_threshold=None)
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def state_update(self) -> car.CarState:
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"""carState update loop, driven by can"""
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# Update carState from CAN
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can_strs = messaging.drain_sock_raw(self.can_sock, wait_for_one=True)
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CS = self.CI.update(self.CC_prev, can_strs)
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self.sm.update(0)
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can_rcv_valid = len(can_strs) > 0
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# Check for CAN timeout
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if not can_rcv_valid:
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self.can_rcv_timeout_counter += 1
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self.can_rcv_cum_timeout_counter += 1
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else:
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self.can_rcv_timeout_counter = 0
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self.can_rcv_timeout = self.can_rcv_timeout_counter >= 5
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if can_rcv_valid and REPLAY:
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self.can_log_mono_time = messaging.log_from_bytes(can_strs[0]).logMonoTime
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return CS
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def update_events(self, CS: car.CarState) -> car.CarState:
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self.events.clear()
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self.events.add_from_msg(CS.events)
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# Disable on rising edge of accelerator or brake. Also disable on brake when speed > 0
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if (CS.gasPressed and not self.CS_prev.gasPressed and self.disengage_on_accelerator) or \
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(CS.brakePressed and (not self.CS_prev.brakePressed or not CS.standstill)) or \
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(CS.regenBraking and (not self.CS_prev.regenBraking or not CS.standstill)):
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self.events.add(EventName.pedalPressed)
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CS.events = self.events.to_msg()
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def state_publish(self, CS: car.CarState):
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"""carState and carParams publish loop"""
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# carParams - logged every 50 seconds (> 1 per segment)
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if self.sm.frame % int(50. / DT_CTRL) == 0:
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cp_send = messaging.new_message('carParams')
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cp_send.valid = True
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cp_send.carParams = self.CP
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self.pm.send('carParams', cp_send)
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# publish new carOutput
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co_send = messaging.new_message('carOutput')
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co_send.valid = self.sm.all_checks(['carControl'])
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co_send.carOutput.actuatorsOutput = self.last_actuators_output
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self.pm.send('carOutput', co_send)
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# kick off controlsd step while we actuate the latest carControl packet
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cs_send = messaging.new_message('carState')
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cs_send.valid = CS.canValid
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cs_send.carState = CS
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cs_send.carState.canRcvTimeout = self.can_rcv_timeout
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cs_send.carState.canErrorCounter = self.can_rcv_cum_timeout_counter
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cs_send.carState.cumLagMs = -self.rk.remaining * 1000.
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self.pm.send('carState', cs_send)
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def controls_update(self, CS: car.CarState, CC: car.CarControl):
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"""control update loop, driven by carControl"""
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if not self.initialized_prev:
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# Initialize CarInterface, once controls are ready
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# TODO: this can make us miss at least a few cycles when doing an ECU knockout
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self.CI.init(self.CP, self.can_sock, self.pm.sock['sendcan'])
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# signal boardd to switch to car safety mode
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self.params.put_bool_nonblocking("ControlsReady", True)
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if self.sm.all_alive(['carControl']):
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# send car controls over can
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now_nanos = self.can_log_mono_time if REPLAY else int(time.monotonic() * 1e9)
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self.last_actuators_output, can_sends = self.CI.apply(CC, now_nanos)
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self.pm.send('sendcan', can_list_to_can_capnp(can_sends, msgtype='sendcan', valid=CS.canValid))
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self.CC_prev = CC
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def step(self):
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CS = self.state_update()
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self.update_events(CS)
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self.state_publish(CS)
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initialized = (not any(e.name == EventName.controlsInitializing for e in self.sm['onroadEvents']) and
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self.sm.seen['onroadEvents'])
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if not self.CP.passive and initialized:
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self.controls_update(CS, self.sm['carControl'])
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self.initialized_prev = initialized
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self.CS_prev = CS.as_reader()
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def card_thread(self):
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while True:
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self.step()
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self.rk.monitor_time()
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def main():
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config_realtime_process(4, Priority.CTRL_HIGH)
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car = Car()
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car.card_thread()
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if __name__ == "__main__":
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main()
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