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44 lines
1.5 KiB
44 lines
1.5 KiB
#!/usr/bin/env python3
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import re
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import traceback
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import cereal.messaging as messaging
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from selfdrive.car.isotp_parallel_query import IsoTpParallelQuery
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from selfdrive.car.fw_query_definitions import StdQueries
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from system.swaglog import cloudlog
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VIN_UNKNOWN = "0" * 17
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VIN_RE = "[A-HJ-NPR-Z0-9]{17}"
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def is_valid_vin(vin: str):
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return re.fullmatch(VIN_RE, vin) is not None
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def get_vin(logcan, sendcan, bus, timeout=0.1, retry=5, debug=False):
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addrs = [0x7e0, 0x7e2, 0x18da10f1, 0x18da0ef1] # engine, VMCU, 29-bit engine, PGM-FI
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for i in range(retry):
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for request, response in ((StdQueries.UDS_VIN_REQUEST, StdQueries.UDS_VIN_RESPONSE), (StdQueries.OBD_VIN_REQUEST, StdQueries.OBD_VIN_RESPONSE)):
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try:
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query = IsoTpParallelQuery(sendcan, logcan, bus, addrs, [request, ], [response, ], debug=debug)
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for (addr, rx_addr), vin in query.get_data(timeout).items():
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# Honda Bosch response starts with a length, trim to correct length
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if vin.startswith(b'\x11'):
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vin = vin[1:18]
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return addr[0], rx_addr, vin.decode()
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print(f"vin query retry ({i+1}) ...")
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except Exception:
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cloudlog.warning(f"VIN query exception: {traceback.format_exc()}")
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return 0, 0, VIN_UNKNOWN
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if __name__ == "__main__":
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import time
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sendcan = messaging.pub_sock('sendcan')
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logcan = messaging.sub_sock('can')
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time.sleep(1)
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addr, vin_rx_addr, vin = get_vin(logcan, sendcan, 1, debug=False)
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print(f'TX: {hex(addr)}, RX: {hex(vin_rx_addr)}, VIN: {vin}')
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