get VIN on bolt!

selfdrive/car/fw_query_definitions.py

@@ -14,6 +14,9 @@ EcuAddrSubAddr = Tuple[int, int, Optional[int]]
 LiveFwVersions = Dict[AddrType, Set[bytes]]
 OfflineFwVersions = Dict[str, Dict[EcuAddrSubAddr, List[bytes]]]
 
+STANDARD_VIN_ADDRS = [0x7e0, 0x7e2, 0x18da10f1, 0x18da0ef1]  # engine, VMCU, 29-bit engine, PGM-FI
+
+
 def p16(val):
   return struct.pack("!H", val)
 
@@ -56,6 +59,9 @@ class StdQueries:
   UDS_VIN_REQUEST = bytes([uds.SERVICE_TYPE.READ_DATA_BY_IDENTIFIER]) + p16(uds.DATA_IDENTIFIER_TYPE.VIN)
   UDS_VIN_RESPONSE = bytes([uds.SERVICE_TYPE.READ_DATA_BY_IDENTIFIER + 0x40]) + p16(uds.DATA_IDENTIFIER_TYPE.VIN)
 
+  GM_VIN_REQUEST = b'\x1a\x90'
+  GM_VIN_RESPONSE = b'\x5a'
+
 
 @dataclass
 class Request:

selfdrive/car/isotp_parallel_query.py

@@ -9,6 +9,7 @@ from panda.python.uds import CanClient, IsoTpMessage, FUNCTIONAL_ADDRS, get_rx_a
 
 
 class IsoTpParallelQuery:
+  # TODO: support different rx offsets per addr
   def __init__(self, sendcan, logcan, bus, addrs, request, response, response_offset=0x8, functional_addrs=None, debug=False, response_pending_timeout=10):
     self.sendcan = sendcan
     self.logcan = logcan

selfdrive/car/vin.py

@@ -4,7 +4,7 @@ import re
 import cereal.messaging as messaging
 from panda.python.uds import get_rx_addr_for_tx_addr, FUNCTIONAL_ADDRS
 from openpilot.selfdrive.car.isotp_parallel_query import IsoTpParallelQuery
-from openpilot.selfdrive.car.fw_query_definitions import StdQueries
+from openpilot.selfdrive.car.fw_query_definitions import STANDARD_VIN_ADDRS, StdQueries
 from openpilot.common.swaglog import cloudlog
 
 VIN_UNKNOWN = "0" * 17
@@ -17,15 +17,16 @@ def is_valid_vin(vin: str):
 
 def get_vin(logcan, sendcan, buses, timeout=0.1, retry=3, debug=False):
   addrs = list(range(0x7e0, 0x7e8)) + list(range(0x18DA00F1, 0x18DB00F1, 0x100))  # addrs to process/wait for
-  valid_vin_addrs = [0x7e0, 0x7e2, 0x18da10f1, 0x18da0ef1]  # engine, VMCU, 29-bit engine, PGM-FI
   for i in range(retry):
     for bus in buses:
-      for request, response in ((StdQueries.UDS_VIN_REQUEST, StdQueries.UDS_VIN_RESPONSE), (StdQueries.OBD_VIN_REQUEST, StdQueries.OBD_VIN_RESPONSE)):
+      for request, response, vin_addrs, rx_offset in ((StdQueries.UDS_VIN_REQUEST, StdQueries.UDS_VIN_RESPONSE, STANDARD_VIN_ADDRS, 0x8),
+                                                      (StdQueries.OBD_VIN_REQUEST, StdQueries.OBD_VIN_RESPONSE, STANDARD_VIN_ADDRS, 0x8),
+                                                      (StdQueries.GM_VIN_REQUEST, StdQueries.GM_VIN_RESPONSE, [0x200], 0x400)):
         try:
           query = IsoTpParallelQuery(sendcan, logcan, bus, addrs, [request, ], [response, ], functional_addrs=FUNCTIONAL_ADDRS, debug=debug)
           results = query.get_data(timeout)
 
-          for addr in valid_vin_addrs:
+          for addr in vin_addrs:
             vin = results.get((addr, None))
             if vin is not None:
               # Ford pads with null bytes