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serialhdl: Introduce SerialReader.send_with_response()

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Introduce a main send_with_response() helper function and use it
during identify and the setup of clocksync.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2019-06-21 19:15:12 -04:00
parent d98bbc772c
commit cc3666aa78
2 changed files with 12 additions and 9 deletions
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12
klippy/clocksync.py
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@ -14,7 +14,7 @@ class ClockSync:
self.reactor = reactor
self.serial = None
self.get_clock_timer = reactor.register_timer(self._get_clock_event)
self.get_clock_cmd = None
self.get_clock_cmd = self.cmd_queue = None
self.queries_pending = 0
self.mcu_freq = 1.
self.last_clock = 0
@ -31,19 +31,19 @@ class ClockSync:
self.serial = serial
self.mcu_freq = serial.msgparser.get_constant_float('CLOCK_FREQ')
# Load initial clock and frequency
get_uptime_cmd = serial.lookup_command('get_uptime')
params = get_uptime_cmd.send_with_response(response='uptime')
params = serial.send_with_response('get_uptime', 'uptime')
self.last_clock = (params['high'] << 32) | params['clock']
self.clock_avg = self.last_clock
self.time_avg = params['#sent_time']
self.clock_est = (self.time_avg, self.clock_avg, self.mcu_freq)
self.prediction_variance = (.001 * self.mcu_freq)**2
# Enable periodic get_clock timer
self.get_clock_cmd = serial.lookup_command('get_clock')
for i in range(8):
params = self.get_clock_cmd.send_with_response(response='clock')
params = serial.send_with_response('get_clock', 'clock')
self._handle_clock(params)
self.reactor.pause(0.100)
self.get_clock_cmd = serial.get_msgparser().create_command('get_clock')
self.cmd_queue = serial.alloc_command_queue()
serial.register_response(self._handle_clock, 'clock')
self.reactor.update_timer(self.get_clock_timer, self.reactor.NOW)
def connect_file(self, serial, pace=False):
@ -56,7 +56,7 @@ class ClockSync:
serial.set_clock_est(freq, self.reactor.monotonic(), 0)
# MCU clock querying (_handle_clock is invoked from background thread)
def _get_clock_event(self, eventtime):
self.get_clock_cmd.send()
self.serial.raw_send(self.get_clock_cmd, 0, 0, self.cmd_queue)
self.queries_pending += 1
# Use an unusual time for the next event so clock messages
# don't resonate with other periodic events.