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add comms handler to get MCU UID (#1212)

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* cleanup first

* get uid

* add to bootstub and test

* fix pedal

* match that

Co-authored-by: Comma Device <device@comma.ai>
This commit is contained in:
Adeeb Shihadeh
2023-01-15 20:13:26 -08:00
committed by GitHub
parent fa678e28fc
commit b8693da342
5 changed files with 37 additions and 1 deletions
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15
python/__init__.py
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@@ -5,6 +5,7 @@ import time
import usb1
import struct
import hashlib
import binascii
import datetime
import traceback
import warnings
@@ -588,14 +589,28 @@ class Panda:
return self.get_type() in Panda.INTERNAL_DEVICES
def get_serial(self):
"""
Returns the comma-issued dongle ID from our provisioning
"""
dat = self._handle.controlRead(Panda.REQUEST_IN, 0xd0, 0, 0, 0x20)
hashsig, calc_hash = dat[0x1c:], hashlib.sha1(dat[0:0x1c]).digest()[0:4]
assert(hashsig == calc_hash)
return [dat[0:0x10].decode("utf8"), dat[0x10:0x10 + 10].decode("utf8")]
def get_usb_serial(self):
"""
Returns the serial number reported from the USB descriptor;
matches the MCU UID
"""
return self._serial
def get_uid(self):
"""
Returns the UID from the MCU
"""
dat = self._handle.controlRead(Panda.REQUEST_IN, 0xc3, 0, 0, 12)
return binascii.hexlify(dat).decode()
def get_secret(self):
return self._handle.controlRead(Panda.REQUEST_IN, 0xd0, 1, 0, 0x10)