mcu: Raise a command_error on a command timeout event

Raise a printer.command_error() instead of an mcu.error() if a query
command does not succeed.  That error is less likely to result in an
unhandled exception error.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

klippy/mcu.py

@@ -358,18 +358,20 @@ class RetryAsyncCommand:
             query_time = self.reactor.monotonic()
             if query_time > first_query_time + self.TIMEOUT_TIME:
                 self.serial.register_response(None, self.name, self.oid)
-                raise error("Timeout on wait for '%s' response" % (self.name,))
+                raise serialhdl.error("Timeout on wait for '%s' response"
+                                      % (self.name,))
             self.serial.raw_send(cmd, minclock, minclock, cmd_queue)
 
 # Wrapper around query commands
 class CommandQueryWrapper:
     def __init__(self, serial, msgformat, respformat, oid=None,
-                 cmd_queue=None, is_async=False):
+                 cmd_queue=None, is_async=False, error=serialhdl.error):
         self._serial = serial
         self._cmd = serial.get_msgparser().lookup_command(msgformat)
         serial.get_msgparser().lookup_command(respformat)
         self._response = respformat.split()[0]
         self._oid = oid
+        self._error = error
         self._xmit_helper = serialhdl.SerialRetryCommand
         if is_async:
             self._xmit_helper = RetryAsyncCommand
@@ -383,7 +385,7 @@ class CommandQueryWrapper:
         try:
             return xh.get_response(cmd, self._cmd_queue, minclock, reqclock)
         except serialhdl.error as e:
-            raise error(str(e))
+            raise self._error(str(e))
 
 # Wrapper around command sending
 class CommandWrapper:
@@ -688,7 +690,7 @@ class MCU:
     def lookup_query_command(self, msgformat, respformat, oid=None,
                              cq=None, is_async=False):
         return CommandQueryWrapper(self._serial, msgformat, respformat, oid,
-                                   cq, is_async)
+                                   cq, is_async, self._printer.command_error)
     def try_lookup_command(self, msgformat):
         try:
             return self.lookup_command(msgformat)