from cereal import car
from opendbc.can.packer import CANPacker
from openpilot.selfdrive.car import apply_driver_steer_torque_limits
from openpilot.selfdrive.car.interfaces import CarControllerBase
from openpilot.selfdrive.car.mazda import mazdacan
from openpilot.selfdrive.car.mazda.values import CarControllerParams, Buttons
VisualAlert = car.CarControl.HUDControl.VisualAlert
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class CarController(CarControllerBase):
def __init__(self, dbc_name, CP, VM):
self.CP = CP
self.apply_steer_last = 0
self.packer = CANPacker(dbc_name)
self.brake_counter = 0
self.frame = 0
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def update(self, CC, CS, now_nanos):
can_sends = []
apply_steer = 0
if CC.latActive:
# calculate steer and also set limits due to driver torque
new_steer = int(round(CC.actuators.steer * CarControllerParams.STEER_MAX))
apply_steer = apply_driver_steer_torque_limits(new_steer, self.apply_steer_last,
CS.out.steeringTorque, CarControllerParams)
if CC.cruiseControl.cancel:
# If brake is pressed, let us wait >70ms before trying to disable crz to avoid
# a race condition with the stock system, where the second cancel from openpilot
# will disable the crz 'main on'. crz ctrl msg runs at 50hz. 70ms allows us to
# read 3 messages and most likely sync state before we attempt cancel.
self.brake_counter = self.brake_counter + 1
if self.frame % 10 == 0 and not (CS.out.brakePressed and self.brake_counter < 7):
# Cancel Stock ACC if it's enabled while OP is disengaged
# Send at a rate of 10hz until we sync with stock ACC state
can_sends.append(mazdacan.create_button_cmd(self.packer, self.CP, CS.crz_btns_counter, Buttons.CANCEL))
else:
self.brake_counter = 0
if CC.cruiseControl.resume and self.frame % 5 == 0:
# Mazda Stop and Go requires a RES button (or gas) press if the car stops more than 3 seconds
# Send Resume button when planner wants car to move
can_sends.append(mazdacan.create_button_cmd(self.packer, self.CP, CS.crz_btns_counter, Buttons.RESUME))
self.apply_steer_last = apply_steer
# send HUD alerts
if self.frame % 50 == 0:
ldw = CC.hudControl.visualAlert == VisualAlert.ldw
steer_required = CC.hudControl.visualAlert == VisualAlert.steerRequired
# TODO: find a way to silence audible warnings so we can add more hud alerts
steer_required = steer_required and CS.lkas_allowed_speed
can_sends.append(mazdacan.create_alert_command(self.packer, CS.cam_laneinfo, ldw, steer_required))
# send steering command
can_sends.append(mazdacan.create_steering_control(self.packer, self.CP,
self.frame, apply_steer, CS.cam_lkas))
new_actuators = CC.actuators.copy()
new_actuators.steer = apply_steer / CarControllerParams.STEER_MAX
new_actuators.steerOutputCan = apply_steer
self.frame += 1
return new_actuators, can_sends