mcu: Raise an error on a failed home_wait() call

Raise a printer.command_error exception if a home_wait() call fails.
This makes it easier to support future types of homing errors.

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

1 files changed, 6 insertions, 3 deletions

diff --git a/klippy/extras/homing.py b/klippy/extras/homing.py
index 634ad81b..06b52f1e 100644
--- a/klippy/extras/homing.py
+++ b/klippy/extras/homing.py
@@ -98,11 +98,14 @@ class HomingMove:
         trigger_times = {}
         move_end_print_time = self.toolhead.get_last_move_time()
         for mcu_endstop, name in self.endstops:
-            trigger_time = mcu_endstop.home_wait(move_end_print_time)
+            try:
+                trigger_time = mcu_endstop.home_wait(move_end_print_time)
+            except self.printer.command_error as e:
+                if error is None:
+                    error = "Error during homing %s: %s" % (name, str(e))
+                continue
             if trigger_time > 0.:
                 trigger_times[name] = trigger_time
-            elif trigger_time < 0. and error is None:
-                error = "Communication timeout during homing %s" % (name,)
             elif check_triggered and error is None:
                 error = "No trigger on %s after full movement" % (name,)
         # Determine stepper halt positions