disable_ecu: support sub-addresses (#29112)

allow sub_addrs
pull/29115/head
Shane Smiskol 2 years ago committed by GitHub
parent bcfb9d6940
commit a31b1dcf16
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GPG Key ID: 4AEE18F83AFDEB23
  1. 8
      selfdrive/car/disable_ecu.py

@ -7,22 +7,22 @@ EXT_DIAG_RESPONSE = b'\x50\x03'
COM_CONT_RESPONSE = b''
def disable_ecu(logcan, sendcan, bus=0, addr=0x7d0, com_cont_req=b'\x28\x83\x01', timeout=0.1, retry=10, debug=False):
def disable_ecu(logcan, sendcan, bus=0, addr=0x7d0, sub_addr=None, com_cont_req=b'\x28\x83\x01', timeout=0.1, retry=10, debug=False):
"""Silence an ECU by disabling sending and receiving messages using UDS 0x28.
The ECU will stay silent as long as openpilot keeps sending Tester Present.
This is used to disable the radar in some cars. Openpilot will emulate the radar.
WARNING: THIS DISABLES AEB!"""
cloudlog.warning(f"ecu disable {hex(addr)} ...")
cloudlog.warning(f"ecu disable {hex(addr), sub_addr} ...")
for i in range(retry):
try:
query = IsoTpParallelQuery(sendcan, logcan, bus, [addr], [EXT_DIAG_REQUEST], [EXT_DIAG_RESPONSE], debug=debug)
query = IsoTpParallelQuery(sendcan, logcan, bus, [(addr, sub_addr)], [EXT_DIAG_REQUEST], [EXT_DIAG_RESPONSE], debug=debug)
for _, _ in query.get_data(timeout).items():
cloudlog.warning("communication control disable tx/rx ...")
query = IsoTpParallelQuery(sendcan, logcan, bus, [addr], [com_cont_req], [COM_CONT_RESPONSE], debug=debug)
query = IsoTpParallelQuery(sendcan, logcan, bus, [(addr, sub_addr)], [com_cont_req], [COM_CONT_RESPONSE], debug=debug)
query.get_data(0)
cloudlog.warning("ecu disabled")

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