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95 lines
2.6 KiB
95 lines
2.6 KiB
import os
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import sys
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import time
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import random
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import subprocess
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import requests
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from panda import Panda
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from nose.tools import timed, assert_equal, assert_less, assert_greater
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def connect_wo_esp():
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# connect to the panda
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p = Panda()
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# power down the ESP
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p.set_esp_power(False)
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# clear old junk
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while len(p.can_recv()) > 0:
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pass
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return p
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def connect_wifi():
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p = Panda()
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dongle_id, pw = p.get_serial()
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assert(dongle_id.isalnum())
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_connect_wifi(dongle_id, pw)
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def _connect_wifi(dongle_id, pw, insecure_okay=False):
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ssid = str("panda-" + dongle_id)
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print("WIFI: connecting to %s" % ssid)
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while 1:
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if sys.platform == "darwin":
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os.system("networksetup -setairportnetwork en0 %s %s" % (ssid, pw))
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else:
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wlan_interface = subprocess.check_output(["sh", "-c", "iw dev | awk '/Interface/ {print $2}'"]).strip()
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cnt = 0
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MAX_TRIES = 10
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while cnt < MAX_TRIES:
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print "WIFI: scanning %d" % cnt
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os.system("sudo iwlist %s scanning > /dev/null" % wlan_interface)
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os.system("nmcli device wifi rescan")
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wifi_scan = filter(lambda x: ssid in x, subprocess.check_output(["nmcli","dev", "wifi", "list"]).split("\n"))
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if len(wifi_scan) != 0:
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break
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time.sleep(0.1)
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# MAX_TRIES tries, ~10 seconds max
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cnt += 1
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assert cnt < MAX_TRIES
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if "-pair" in wifi_scan[0]:
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os.system("nmcli d wifi connect %s-pair" % (ssid))
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if insecure_okay:
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break
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# fetch webpage
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print "connecting to insecure network to secure"
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r = requests.get("http://192.168.0.10/")
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assert r.status_code==200
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print "securing"
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try:
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r = requests.get("http://192.168.0.10/secure", timeout=0.01)
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except requests.exceptions.Timeout:
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pass
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else:
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os.system("nmcli d wifi connect %s password %s" % (ssid, pw))
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break
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# TODO: confirm that it's connected to the right panda
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def time_many_sends(p, bus, precv=None, msg_count=100, msg_id=None):
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if precv == None:
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precv = p
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if msg_id == None:
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msg_id = random.randint(0x100, 0x200)
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st = time.time()
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p.can_send_many([(msg_id, 0, "\xaa"*8, bus)]*msg_count)
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r = []
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while len(r) < (msg_count*2) and (time.time() - st) < 3:
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r.extend(precv.can_recv())
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sent_echo = filter(lambda x: x[3] == 0x80 | bus and x[0] == msg_id, r)
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loopback_resp = filter(lambda x: x[3] == bus and x[0] == msg_id, r)
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assert_equal(len(sent_echo), msg_count)
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assert_equal(len(loopback_resp), msg_count)
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et = (time.time()-st)*1000.0
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comp_kbps = (1+11+1+1+1+4+8*8+15+1+1+1+7)*msg_count / et
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return comp_kbps
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