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 os
import sys
import time
import signal
import traceback
import usb1
from panda import Panda, PandaDFU
from multiprocessing import Pool
jungle = "JUNGLE" in os.environ
if jungle:
from panda_jungle import PandaJungle # pylint: disable=import-error
import cereal.messaging as messaging
from selfdrive.boardd.boardd import can_capnp_to_can_list
def initializer():
"""Ignore CTRL+C in the worker process.
source: https://stackoverflow.com/a/44869451 """
signal.signal(signal.SIGINT, signal.SIG_IGN)
def send_thread(sender_serial):
while True:
try:
if jungle:
sender = PandaJungle(sender_serial)
else:
sender = Panda(sender_serial)
sender.set_safety_mode(Panda.SAFETY_ALLOUTPUT)
sender.set_can_loopback(False)
can_sock = messaging.sub_sock('can')
while True:
tsc = messaging.recv_one(can_sock)
snd = can_capnp_to_can_list(tsc.can)
snd = list(filter(lambda x: x[-1] <= 2, snd))
try:
sender.can_send_many(snd)
except usb1.USBErrorTimeout:
pass
# Drain panda message buffer
sender.can_recv()
except Exception:
traceback.print_exc()
time.sleep(1)
if __name__ == "__main__":
if jungle:
serials = PandaJungle.list()
else:
serials = Panda.list()
num_senders = len(serials)
if num_senders == 0:
print("No senders found. Exiting")
sys.exit(1)
else:
print("%d senders found. Starting broadcast" % num_senders)
if "FLASH" in os.environ:
for s in PandaDFU.list():
PandaDFU(s).recover()
time.sleep(1)
for s in serials:
Panda(s).recover()
Panda(s).flash()
pool = Pool(num_senders, initializer=initializer)
pool.map_async(send_thread, serials)
while True:
try:
time.sleep(10)
except KeyboardInterrupt:
pool.terminate()
pool.join()
raise