probe_eddy_current: Separate probe style commands from homing operations

Separate homing operations (as called from probe:z_virtual_endstop)
from the normal probe command handling.

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

klippy/extras/probe_eddy_current.py

@@ -302,7 +302,7 @@ class EddyGatherSamples:
         self._check_samples()
 
 # Helper for implementing PROBE style commands (descend until trigger)
-class EddyEndstopWrapper:
+class EddyDescend:
     REASON_SENSOR_ERROR = mcu.MCU_trsync.REASON_COMMS_TIMEOUT + 1
     def __init__(self, config, sensor_helper, calibration, param_helper):
         self._printer = config.get_printer()
@@ -315,11 +315,8 @@ class EddyEndstopWrapper:
         self._dispatch = mcu.TriggerDispatch(self._mcu)
         self._trigger_time = 0.
         self._gather = None
-    # Interface for MCU_endstop
-    def get_mcu(self):
-        return self._mcu
-    def add_stepper(self, stepper):
-        self._dispatch.add_stepper(stepper)
+        probe.LookupZSteppers(config, self._dispatch.add_stepper)
+    # Interface for phoming.probing_move()
     def get_steppers(self):
         return self._dispatch.get_steppers()
     def home_start(self, print_time, sample_time, sample_count, rest_time,
@@ -346,11 +343,10 @@ class EddyEndstopWrapper:
             return home_end_time
         self._trigger_time = trigger_time
         return trigger_time
-    def query_endstop(self, print_time):
-        return False # XXX
     # Probe session interface
     def start_probe_session(self, gcmd):
-        self.multi_probe_begin()
+        self._gather = EddyGatherSamples(self._printer, self._sensor_helper,
+                                         self._calibration, self._z_offset)
         return self
     def run_probe(self, gcmd):
         toolhead = self._printer.lookup_object('toolhead')
@@ -370,20 +366,43 @@ class EddyEndstopWrapper:
     def pull_probed_results(self):
         return self._gather.pull_probed()
     def end_probe_session(self):
-        self.multi_probe_end()
-    # Interface for ProbeEndstopWrapper
-    def multi_probe_begin(self):
-        self._gather = EddyGatherSamples(self._printer, self._sensor_helper,
-                                         self._calibration, self._z_offset)
-    def multi_probe_end(self):
         self._gather.finish()
         self._gather = None
+
+# Wrapper to emulate mcu_endstop for probe:z_virtual_endstop
+# Note that this does not provide accurate results
+class EddyEndstopWrapper:
+    def __init__(self, sensor_helper, eddy_descend):
+        self._sensor_helper = sensor_helper
+        self._eddy_descend = eddy_descend
+        self._hw_probe_session = None
+    # Interface for MCU_endstop
+    def get_mcu(self):
+        return self._sensor_helper.get_mcu()
+    def add_stepper(self, stepper):
+        pass
+    def get_steppers(self):
+        return self._eddy_descend.get_steppers()
+    def home_start(self, print_time, sample_time, sample_count, rest_time,
+                   triggered=True):
+        return self._eddy_descend.home_start(
+            print_time, sample_time, sample_count, rest_time, triggered)
+    def home_wait(self, home_end_time):
+        return self._eddy_descend.home_wait(home_end_time)
+    def query_endstop(self, print_time):
+        return False # XXX
+    # Interface for HomingViaProbeHelper
+    def multi_probe_begin(self):
+        self._hw_probe_session = self._eddy_descend.start_probe_session(None)
+    def multi_probe_end(self):
+        self._hw_probe_session.end_probe_session()
+        self._hw_probe_session = None
     def probe_prepare(self, hmove):
         pass
     def probe_finish(self, hmove):
         pass
     def get_position_endstop(self):
-        return self._z_offset
+        return self._eddy_descend._z_offset
 
 # Implementing probing with "METHOD=scan"
 class EddyScanningProbe:
@@ -436,14 +455,14 @@ class PrinterEddyProbe:
         self.sensor_helper = sensors[sensor_type](config, self.calibration)
         # Probe interface
         self.param_helper = probe.ProbeParameterHelper(config)
-        self.mcu_probe = EddyEndstopWrapper(
+        self.eddy_descend = EddyDescend(
             config, self.sensor_helper, self.calibration, self.param_helper)
         self.cmd_helper = probe.ProbeCommandHelper(config, self)
         self.probe_offsets = probe.ProbeOffsetsHelper(config)
-        self.homing_helper = probe.HomingViaProbeHelper(config, self.mcu_probe,
-                                                        self.param_helper)
         self.probe_session = probe.ProbeSessionHelper(
-            config, self.param_helper, self.mcu_probe.start_probe_session)
+            config, self.param_helper, self.eddy_descend.start_probe_session)
+        mcu_probe = EddyEndstopWrapper(self.sensor_helper, self.eddy_descend)
+        probe.HomingViaProbeHelper(config, mcu_probe, self.param_helper)
         self.printer.add_object('probe', self)
     def add_client(self, cb):
         self.sensor_helper.add_client(cb)