homing: Support querying the current status of endstops
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
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@ -67,6 +67,8 @@ class CartKinematics:
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def motor_off(self, move_time):
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for stepper in self.steppers:
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stepper.motor_enable(move_time, 0)
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def query_endstops(self, move_time):
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return homing.QueryEndstops(["x", "y", "z"], self.steppers)
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def move(self, move_time, move):
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inv_accel = 1. / move.accel
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inv_cruise_v = 1. / move.cruise_v
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@ -44,7 +44,7 @@ class GCodeParser:
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def build_handlers(self):
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shutdown_handlers = ['M105', 'M110', 'M114']
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handlers = ['G0', 'G1', 'G4', 'G20', 'G21', 'G28', 'G90', 'G91', 'G92',
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'M18', 'M82', 'M83', 'M84', 'M110', 'M114', 'M206']
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'M18', 'M82', 'M83', 'M84', 'M110', 'M114', 'M119', 'M206']
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if self.heater_nozzle is not None:
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handlers.extend(['M104', 'M105', 'M109', 'M303'])
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if self.heater_bed is not None:
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@ -294,6 +294,20 @@ class GCodeParser:
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self.last_position[0], self.last_position[1],
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self.last_position[2], self.last_position[3],
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kinpos[0], kinpos[1], kinpos[2]))
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def cmd_M119(self, params):
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# Get Endstop Status
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if self.inputfile:
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return
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# Wrapper class for check_busy() that responds with final status
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class endstop_handler_wrapper:
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gcode = self
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state = self.toolhead.query_endstops()
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def check_busy(self, eventtime):
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busy = self.state.check_busy(eventtime)
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if not busy:
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self.gcode.respond(self.state.get_msg())
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return busy
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self.set_busy(endstop_handler_wrapper())
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def cmd_M140(self, params):
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# Set Bed Temperature
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self.set_temp(self.heater_bed, params)
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@ -11,6 +11,7 @@ class Homing:
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self.toolhead = toolhead
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self.changed_axes = changed_axes
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self.eventtime = 0.
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self.states = []
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self.endstops = []
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def plan_home(self, forcepos, movepos, steppers, speed):
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@ -21,6 +22,7 @@ class Homing:
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def plan_axes_update(self, callback):
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self.states.append((callback, (self.changed_axes,)))
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def check_busy(self, eventtime):
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self.eventtime = eventtime
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while self.states:
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first = self.states[0]
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ret = first[0](*first[1])
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@ -57,8 +59,34 @@ class Homing:
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def do_wait_endstop(self):
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# Check if endstops have triggered
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for es in self.endstops:
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if es.is_homing():
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if es.check_busy(self.eventtime):
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return True
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# Finished
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del self.endstops[:]
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return False
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class QueryEndstops:
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def __init__(self, names, steppers):
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self.endstops = []
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self.busy = []
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for name, stepper in zip(names, steppers):
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es = stepper.query_endstop()
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if es is None:
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continue
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self.endstops.append((name, es))
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self.busy.append(es)
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def check_busy(self, eventtime):
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while self.busy:
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busy = self.busy[0].check_busy(eventtime)
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if busy:
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return True
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self.busy.pop(0)
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return False
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def get_msg(self):
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msgs = []
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for name, es in self.endstops:
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msg = "open"
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if es.get_last_triggered():
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msg = "TRIGGERED"
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msgs.append("%s:%s" % (name, msg))
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return " ".join(msgs)
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@ -97,16 +97,15 @@ class MCU_endstop:
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, self._oid)
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self._query_cmd = mcu.lookup_command("end_stop_query oid=%c")
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self._homing = False
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self._last_position = 0
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self._next_query_clock = 0
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self._min_query_time = self._last_query_time = 0.
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self._last_state = {}
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self._mcu_freq = mcu.get_mcu_freq()
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self._retry_query_ticks = int(self._mcu_freq * self.RETRY_QUERY)
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self.print_to_mcu_time = mcu.print_to_mcu_time
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def home(self, mcu_time, rest_time):
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clock = int(mcu_time * self._mcu_freq)
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rest_ticks = int(rest_time * self._mcu_freq)
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self._homing = True
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self._next_query_clock = clock + self._retry_query_ticks
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self._min_query_time = self._last_query_time = time.time()
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msg = self._home_cmd.encode(
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self._oid, clock, rest_ticks, 1 ^ self._invert)
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self._mcu.send(msg, reqclock=clock, cq=self._cmd_queue)
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@ -117,23 +116,30 @@ class MCU_endstop:
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self._stepper.note_stepper_stop()
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def _handle_end_stop_state(self, params):
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logging.debug("end_stop_state %s" % (params,))
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self._last_position = params['pos']
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self._homing = params['homing'] != 0
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def is_homing(self):
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if not self._homing:
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return self._homing
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self._last_state = params
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def check_busy(self, eventtime):
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# Check if need to send an end_stop_query command
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if self._mcu.output_file_mode:
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return False
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last_clock = self._mcu.get_last_clock()
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if last_clock >= self._next_query_clock:
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self._next_query_clock = last_clock + self._retry_query_ticks
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if self._last_state.get('#sent_time', -1.) >= self._min_query_time:
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if not self._homing or not self._last_state.get('homing', 0):
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return False
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if self._last_query_time + self.RETRY_QUERY <= eventtime:
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self._last_query_time = eventtime
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msg = self._query_cmd.encode(self._oid)
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self._mcu.send(msg, cq=self._cmd_queue)
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return self._homing
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return True
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def get_last_position(self):
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pos = self._last_state.get('pos', 0)
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if self._stepper.get_invert_dir():
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return -self._last_position
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return self._last_position
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return -pos
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return pos
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def query_endstop(self):
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self._homing = False
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self._min_query_time = time.time()
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self._last_query_time = 0.
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def get_last_triggered(self):
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return self._last_state.get('pin', self._invert) ^ self._invert
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class MCU_digital_out:
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def __init__(self, mcu, pin, max_duration):
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@ -80,6 +80,11 @@ class PrinterStepper:
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mcu_time = self.mcu_endstop.print_to_mcu_time(move_time)
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self.mcu_endstop.home(mcu_time, step_time)
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return self.mcu_endstop
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def query_endstop(self):
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if self.mcu_endstop is None:
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return None
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self.mcu_endstop.query_endstop()
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return self.mcu_endstop
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def get_homed_position(self):
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if not self.homing_stepper_phases:
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return self.position_endstop
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@ -280,6 +280,9 @@ class ToolHead:
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self.extruder.motor_off(last_move_time)
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self.dwell(STALL_TIME)
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logging.debug('; Max time of %f' % (last_move_time,))
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def query_endstops(self):
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last_move_time = self.get_last_move_time()
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return self.kin.query_endstops(last_move_time)
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def force_shutdown(self):
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self.printer.mcu.force_shutdown()
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self.move_queue.reset()
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