Created python package and implemented industry best practices.

Supports python 2 and 3 (to the best of my testing ability at the time)
master
Jessy Diamond Exum 2017-06-13 18:50:47 -07:00
parent 0e46ca4a5d
commit 6a25791fea
12 changed files with 180 additions and 101 deletions

3
.gitignore vendored
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@ -2,4 +2,5 @@
.*.swp
*.o
a.out
*~
.#*

1
board/.gitignore vendored
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@ -1 +0,0 @@
obj/*

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@ -1,14 +1,18 @@
# python library to interface with panda
from __future__ import print_function
import binascii
import struct
import hashlib
import socket
import usb1
from usb1 import USBErrorIO, USBErrorOverflow
try:
from hexdump import hexdump
except:
pass
__version__ = '0.0.1'
class PandaHashMismatchException(Exception):
def __init__(self, hash_, expected_hash):
super(PandaHashMismatchException, self).__init__(
"Hash '%s' did not match the expected hash '%s'"%\
(binascii.hexlify(hash_), binascii.hexlify(expected_hash)))
def parse_can_buffer(dat):
ret = []
@ -33,7 +37,7 @@ class PandaWifiStreaming(object):
def can_recv(self):
ret = []
while 1:
while True:
try:
dat, addr = self.sock.recvfrom(0x200*0x10)
if addr == (self.ip, self.port):
@ -61,7 +65,8 @@ class WifiHandle(object):
return self.__recv()
def bulkWrite(self, endpoint, data, timeout=0):
assert len(data) <= 0x10
if len(data) > 0x10:
raise ValueError("Data must not be longer than 0x10")
self.sock.send(struct.pack("HH", endpoint, len(data))+data)
self.__recv() # to /dev/null
@ -73,10 +78,12 @@ class WifiHandle(object):
self.sock.close()
class Panda(object):
REQUEST_TYPE = usb1.TYPE_VENDOR | usb1.RECIPIENT_DEVICE
def __init__(self, serial=None, claim=True):
if serial == "WIFI":
self.handle = WifiHandle()
print "opening WIFI device"
print("opening WIFI device")
else:
context = usb1.USBContext()
@ -84,7 +91,7 @@ class Panda(object):
for device in context.getDeviceList(skip_on_error=True):
if device.getVendorID() == 0xbbaa and device.getProductID() == 0xddcc:
if serial is None or device.getSerialNumber() == serial:
print "opening device", device.getSerialNumber()
print("opening device", device.getSerialNumber())
self.handle = device.open()
if claim:
self.handle.claimInterface(0)
@ -109,7 +116,7 @@ class Panda(object):
# ******************* health *******************
def health(self):
dat = self.handle.controlRead(usb1.TYPE_VENDOR | usb1.RECIPIENT_DEVICE, 0xd2, 0, 0, 13)
dat = self.handle.controlRead(Panda.REQUEST_TYPE, 0xd2, 0, 0, 13)
a = struct.unpack("IIBBBBB", dat)
return {"voltage": a[0], "current": a[1],
"started": a[2], "controls_allowed": a[3],
@ -121,82 +128,79 @@ class Panda(object):
def enter_bootloader(self):
try:
self.handle.controlWrite(usb1.TYPE_VENDOR | usb1.RECIPIENT_DEVICE, 0xd1, 0, 0, '')
except Exception:
self.handle.controlWrite(Panda.REQUEST_TYPE, 0xd1, 0, 0, b'')
except Exception as e:
print(e)
pass
def get_serial(self):
dat = str(self.handle.controlRead(usb1.TYPE_VENDOR | usb1.RECIPIENT_DEVICE, 0xd0, 0, 0, 0x20))
assert dat[0x1c:] == hashlib.sha1(dat[0:0x1c]).digest()[0:4]
dat = self.handle.controlRead(Panda.REQUEST_TYPE, 0xd0, 0, 0, 0x20)
hashsig, calc_hash = dat[0x1c:], hashlib.sha1(dat[0:0x1c]).digest()[0:4]
if hashsig != calc_hash:
raise PandaHashMismatchException(calc_hash, hashsig)
return [dat[0:0x10], dat[0x10:0x10+10]]
def get_secret(self):
dat = str(self.handle.controlRead(usb1.TYPE_VENDOR | usb1.RECIPIENT_DEVICE, 0xd0, 1, 0, 0x10))
return dat.encode("hex")
return self.handle.controlRead(Panda.REQUEST_TYPE, 0xd0, 1, 0, 0x10)
# ******************* configuration *******************
def set_controls_allowed(self, on):
if on:
self.handle.controlWrite(usb1.TYPE_VENDOR | usb1.RECIPIENT_DEVICE, 0xdc, 0x1337, 0, '')
else:
self.handle.controlWrite(usb1.TYPE_VENDOR | usb1.RECIPIENT_DEVICE, 0xdc, 0, 0, '')
self.handle.controlWrite(Panda.REQUEST_TYPE, 0xdc, (0x1337 if on else 0), 0, b'')
def set_gmlan(self, on, bus=2):
if on:
self.handle.controlWrite(usb1.TYPE_VENDOR | usb1.RECIPIENT_DEVICE, 0xdb, 1, bus, '')
else:
self.handle.controlWrite(usb1.TYPE_VENDOR | usb1.RECIPIENT_DEVICE, 0xdb, 0, bus, '')
self.handle.controlWrite(Panda.REQUEST_TYPE, 0xdb, 1, bus, b'')
def set_uart_baud(self, uart, rate):
self.handle.controlWrite(usb1.TYPE_VENDOR | usb1.RECIPIENT_DEVICE, 0xe1, uart, rate, '')
self.handle.controlWrite(Panda.REQUEST_TYPE, 0xe1, uart, rate, b'')
def set_uart_parity(self, uart, parity):
# parity, 0=off, 1=even, 2=odd
self.handle.controlWrite(usb1.TYPE_VENDOR | usb1.RECIPIENT_DEVICE, 0xe2, uart, parity, '')
self.handle.controlWrite(Panda.REQUEST_TYPE, 0xe2, uart, parity, b'')
def set_uart_callback(self, uart, install):
self.handle.controlWrite(usb1.TYPE_VENDOR | usb1.RECIPIENT_DEVICE, 0xe3, uart, int(install), '')
self.handle.controlWrite(Panda.REQUEST_TYPE, 0xe3, uart, int(install), b'')
# ******************* can *******************
def can_send_many(self, arr):
snds = []
transmit = 1
extended = 4
for addr, _, dat, bus in arr:
transmit = 1
extended = 4
if addr >= 0x800:
rir = (addr << 3) | transmit | extended
else:
rir = (addr << 21) | transmit
snd = struct.pack("II", rir, len(dat) | (bus << 4)) + dat
snd = snd.ljust(0x10, '\x00')
snd = snd.ljust(0x10, b'\x00')
snds.append(snd)
while 1:
while True:
try:
self.handle.bulkWrite(3, ''.join(snds))
print("DAT: %s"%b''.join(snds).__repr__())
self.handle.bulkWrite(3, b''.join(snds))
break
except (USBErrorIO, USBErrorOverflow):
print "CAN: BAD SEND MANY, RETRYING"
except (usb1.USBErrorIO, usb1.USBErrorOverflow):
print("CAN: BAD SEND MANY, RETRYING")
def can_send(self, addr, dat, bus):
self.can_send_many([[addr, None, dat, bus]])
def can_recv(self):
dat = ""
while 1:
dat = bytearray()
while True:
try:
dat = self.handle.bulkRead(1, 0x10*256)
break
except (USBErrorIO, USBErrorOverflow):
print "CAN: BAD RECV, RETRYING"
except (usb1.USBErrorIO, usb1.USBErrorOverflow):
print("CAN: BAD RECV, RETRYING")
return parse_can_buffer(dat)
# ******************* serial *******************
def serial_read(self, port_number):
return self.handle.controlRead(usb1.TYPE_VENDOR | usb1.RECIPIENT_DEVICE, 0xe0, port_number, 0, 0x40)
return self.handle.controlRead(Panda.REQUEST_TYPE, 0xe0, port_number, 0, 0x40)
def serial_write(self, port_number, ln):
return self.handle.bulkWrite(2, chr(port_number) + ln)
@ -205,22 +209,22 @@ class Panda(object):
# pulse low for wakeup
def kline_wakeup(self):
ret = self.handle.controlWrite(usb1.TYPE_VENDOR | usb1.RECIPIENT_DEVICE, 0xf0, 0, 0, "")
self.handle.controlWrite(Panda.REQUEST_TYPE, 0xf0, 0, 0, b'')
def kline_drain(self, bus=2):
# drain buffer
bret = ""
while 1:
ret = self.handle.controlRead(usb1.TYPE_VENDOR | usb1.RECIPIENT_DEVICE, 0xe0, bus, 0, 0x40)
bret = bytearray()
while True:
ret = self.handle.controlRead(Panda.REQUEST_TYPE, 0xe0, bus, 0, 0x40)
if len(ret) == 0:
break
bret += str(ret)
bret += ret
return bret
def kline_ll_recv(self, cnt, bus=2):
echo = ""
echo = bytearray()
while len(echo) != cnt:
echo += str(self.handle.controlRead(usb1.TYPE_VENDOR | usb1.RECIPIENT_DEVICE, 0xe0, bus, 0, cnt-len(echo)))
echo += self.handle.controlRead(Panda.REQUEST_TYPE, 0xe0, bus, 0, cnt-len(echo))
return echo
def kline_send(self, x, bus=2, checksum=True):
@ -238,13 +242,12 @@ class Panda(object):
self.handle.bulkWrite(2, chr(bus)+ts)
echo = self.kline_ll_recv(len(ts), bus=bus)
if echo != ts:
print "**** ECHO ERROR %d ****" % i
print echo.encode("hex")
print ts.encode("hex")
print("**** ECHO ERROR %d ****" % i)
print(binascii.hexlify(echo))
print(binascii.hexlify(ts))
assert echo == ts
def kline_recv(self, bus=2):
msg = self.kline_ll_recv(2, bus=bus)
msg += self.kline_ll_recv(ord(msg[1])-2, bus=bus)
return msg

2
setup.cfg 100644
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[bdist_wheel]
universal=1

64
setup.py 100644
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@ -0,0 +1,64 @@
#-*- coding: utf-8 -*-
"""
Panda CAN Controller Dongle
~~~~~
Setup
`````
$ pip install . # or python setup.py install
"""
import codecs
import os
import re
from setuptools import setup, Extension
here = os.path.abspath(os.path.dirname(__file__))
def read(*parts):
"""Taken from pypa pip setup.py:
intentionally *not* adding an encoding option to open, See:
https://github.com/pypa/virtualenv/issues/201#issuecomment-3145690
"""
return codecs.open(os.path.join(here, *parts), 'r').read()
def find_version(*file_paths):
version_file = read(*file_paths)
version_match = re.search(r"^__version__ = ['\"]([^'\"]*)['\"]",
version_file, re.M)
if version_match:
return version_match.group(1)
raise RuntimeError("Unable to find version string.")
setup(
name='panda',
version=find_version("panda", "__init__.py"),
url='https://github.com/commaai/panda',
author='Comma.ai',
author_email='',
packages=[
'panda',
],
platforms='any',
license='MIT',
install_requires=[
'libusb1 >= 1.6.4',
'hexdump >= 3.3',
'pycrypto >= 2.6.1',
'tqdm >= 4.14.0',
],
ext_modules = [],
description="Code powering the comma.ai panda",
long_description=open(os.path.join(os.path.dirname(__file__),
'README.md')).read(),
classifiers=[
'Development Status :: 2 - Pre-Alpha',
"Natural Language :: English",
"Programming Language :: Python :: 2",
"Programming Language :: Python :: 3",
"Topic :: System :: Hardware",
],
)

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@ -1,9 +1,12 @@
#!/usr/bin/env python
from __future__ import print_function
import os
import struct
import sys
import time
from collections import defaultdict
from panda.lib.panda import Panda
sys.path.append(os.path.join(os.path.dirname(os.path.realpath(__file__)), ".."))
from panda import Panda
# fake
def sec_since_boot():
@ -16,7 +19,7 @@ def can_printer():
lp = sec_since_boot()
msgs = defaultdict(list)
canbus = int(os.getenv("CAN", 0))
while 1:
while True:
can_recv = p.can_recv()
for address, _, dat, src in can_recv:
if src == canbus:
@ -27,9 +30,8 @@ def can_printer():
dd += "%5.2f\n" % (sec_since_boot() - start)
for k,v in sorted(zip(msgs.keys(), map(lambda x: x[-1].encode("hex"), msgs.values()))):
dd += "%s(%6d) %s\n" % ("%04X(%4d)" % (k,k),len(msgs[k]), v)
print dd
print(dd)
lp = sec_since_boot()
if __name__ == "__main__":
can_printer()

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@ -1,10 +1,12 @@
#!/usr/bin/env python
from __future__ import print_function
import os
import sys
import usb1
import time
import select
from panda.lib.panda import Panda
sys.path.append(os.path.join(os.path.dirname(os.path.realpath(__file__)), ".."))
from panda import Panda
setcolor = ["\033[1;32;40m", "\033[1;31;40m"]
unsetcolor = "\033[00m"
@ -17,17 +19,16 @@ if __name__ == "__main__":
serials = filter(lambda x: x==os.getenv("SERIAL"), serials)
pandas = map(lambda x: Panda(x, False), serials)
while 1:
while True:
for i, panda in enumerate(pandas):
while 1:
while True:
ret = panda.serial_read(port_number)
if len(ret) > 0:
sys.stdout.write(setcolor[i] + ret + unsetcolor)
sys.stdout.write(setcolor[i] + ret.decode('utf8') + unsetcolor)
sys.stdout.flush()
else:
break
if select.select([sys.stdin], [], [], 0) == ([sys.stdin], [], []):
if select.select([sys.stdin], [], [], 0)[0][0] == sys.stdin:
ln = sys.stdin.readline()
panda.serial_write(port_number, ln)
time.sleep(0.01)

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@ -1,23 +1,25 @@
#!/usr/bin/env python
from __future__ import print_function
import os
import sys
import time
import usb1
import random
import struct
from panda.lib.panda import Panda
from hexdump import hexdump
from itertools import permutations
sys.path.append(os.path.join(os.path.dirname(os.path.realpath(__file__)), ".."))
from panda import Panda
def get_test_string():
return "test"+os.urandom(10)
def run_test():
pandas = Panda.list()
print pandas
print(pandas)
if len(pandas) == 0:
print "NO PANDAS"
print("NO PANDAS")
assert False
if len(pandas) == 1:
@ -27,17 +29,17 @@ def run_test():
def run_test_w_pandas(pandas):
h = map(lambda x: Panda(x), pandas)
print h
print(h)
for hh in h:
hh.set_controls_allowed(True)
# test both directions
for ho in permutations(range(len(h)), r=2):
print "***************** TESTING", ho
print("***************** TESTING", ho)
# **** test health packet ****
print "health", ho[0], h[ho[0]].health()
print("health", ho[0], h[ho[0]].health())
# **** test K/L line loopback ****
for bus in [2,3]:
@ -55,11 +57,11 @@ def run_test_w_pandas(pandas):
hexdump(st)
hexdump(ret)
assert st == ret
print "K/L pass", bus, ho
print("K/L pass", bus, ho)
# **** test can line loopback ****
for bus in [0,1,4,5,6]:
print "test can", bus
print("test can", bus)
# flush
cans_echo = h[ho[0]].can_recv()
cans_loop = h[ho[1]].can_recv()
@ -89,7 +91,7 @@ def run_test_w_pandas(pandas):
cans_echo = h[ho[0]].can_recv()
cans_loop = h[ho[1]].can_recv()
print bus, cans_echo, cans_loop
print(bus, cans_echo, cans_loop)
assert len(cans_echo) == 1
assert len(cans_loop) == 1
@ -102,10 +104,10 @@ def run_test_w_pandas(pandas):
assert cans_echo[0][3] == bus+2
if cans_loop[0][3] != bus:
print "EXPECTED %d GOT %d" % (bus, cans_loop[0][3])
print("EXPECTED %d GOT %d" % (bus, cans_loop[0][3]))
assert cans_loop[0][3] == bus
print "CAN pass", bus, ho
print("CAN pass", bus, ho)
if __name__ == "__main__":
if len(sys.argv) > 1:
@ -113,8 +115,7 @@ if __name__ == "__main__":
run_test()
else :
i = 0
while 1:
print "************* testing %d" % i
while True:
print("************* testing %d" % i)
run_test()
i += 1

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@ -1,29 +1,32 @@
#!/usr/bin/env python
import os
import sys
import struct
import time
from panda.lib.panda import Panda
sys.path.append(os.path.join(os.path.dirname(os.path.realpath(__file__)), ".."))
from panda import Panda
if __name__ == "__main__":
if os.getenv("WIFI") is not None:
p = Panda("WIFI")
else:
p = Panda()
print p.get_serial()
print p.health()
print(p.get_serial())
print(p.health())
t1 = time.time()
for i in range(100):
p.get_serial()
t2 = time.time()
print "100 requests took %.2f ms" % ((t2-t1)*1000)
print("100 requests took %.2f ms" % ((t2-t1)*1000))
p.set_controls_allowed(True)
a = 0
while 1:
while True:
# flood
msg = "\xaa"*4 + struct.pack("I", a)
msg = b"\xaa"*4 + struct.pack("I", a)
p.can_send(0xaa, msg, 0)
p.can_send(0xaa, msg, 1)
p.can_send(0xaa, msg, 4)
@ -31,6 +34,5 @@ if __name__ == "__main__":
dat = p.can_recv()
if len(dat) > 0:
print dat
print(dat)
a += 1

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@ -1,25 +1,29 @@
#!/usr/bin/env python
from __future__ import print_function
import os
import sys
import struct
import time
from panda.lib.panda import Panda, PandaWifiStreaming
from tqdm import tqdm
sys.path.append(os.path.join(os.path.dirname(os.path.realpath(__file__)), ".."))
from panda import Panda, PandaWifiStreaming
# test throughput between USB and wifi
if __name__ == "__main__":
print Panda.list()
print(Panda.list())
p_out = Panda("108018800f51363038363036")
print p_out.get_serial()
print(p_out.get_serial())
#p_in = Panda("02001b000f51363038363036")
p_in = Panda("WIFI")
print p_in.get_serial()
print(p_in.get_serial())
p_in = PandaWifiStreaming()
#while 1:
#while True:
# p_in.can_recv()
#exit(0)
#sys.exit(0)
p_out.set_controls_allowed(True)
@ -28,17 +32,17 @@ if __name__ == "__main__":
# drain
p_out.can_recv()
p_in.can_recv()
BATCH_SIZE = 16
for a in tqdm(range(0, 10000, BATCH_SIZE)):
for b in range(0, BATCH_SIZE):
msg = "\xaa"*4 + struct.pack("I", a+b)
msg = b"\xaa"*4 + struct.pack("I", a+b)
if a%1 == 0:
p_out.can_send(0xaa, msg, 0)
dat_out, dat_in = p_out.can_recv(), p_in.can_recv()
if len(dat_in) != 0:
print len(dat_in)
print(len(dat_in))
num_out = [struct.unpack("I", i[4:])[0] for _, _, i, _ in dat_out]
num_in = [struct.unpack("I", i[4:])[0] for _, _, i, _ in dat_in]
@ -47,14 +51,14 @@ if __name__ == "__main__":
set_out.update(num_out)
# swag
print "waiting for packets"
print("waiting for packets")
time.sleep(2.0)
dat_in = p_in.can_recv()
print len(dat_in)
print(len(dat_in))
num_in = [struct.unpack("I", i[4:])[0] for _, _, i, _ in dat_in]
set_in.update(num_in)
if len(set_out - set_in):
print "MISSING %d" % len(set_out - set_in)
print("MISSING %d" % len(set_out - set_in))
if len(set_out - set_in) < 256:
print map(hex, sorted(list(set_out - set_in)))
print(map(hex, sorted(list(set_out - set_in))))