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serialhdl: Add a wrapper around the results of lookup_command() 

Add a lookup_command() method to the SerialReader class that provides
a wrapper that stores the serial and commandqueue references.  This
makes it easier to run the send() method.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2018-02-27 14:16:16 -05:00
parent 8518da9824
commit b139a8561f
6 changed files with 110 additions and 106 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
klippy/clocksync.py
View File

@ -29,20 +29,19 @@ class ClockSync:
self.last_prediction_time = 0.
def connect(self, serial):
self.serial = serial
msgparser = serial.msgparser
self.mcu_freq = msgparser.get_constant_float('CLOCK_FREQ')
self.mcu_freq = serial.msgparser.get_constant_float('CLOCK_FREQ')
# Load initial clock and frequency
uptime_msg = msgparser.create_command('get_uptime')
params = serial.send_with_response(uptime_msg, 'uptime')
get_uptime_cmd = serial.lookup_command('get_uptime')
params = get_uptime_cmd.send_with_response(response='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_status timer
self.status_cmd = msgparser.create_command('get_status')
self.status_cmd = serial.lookup_command('get_status')
for i in range(8):
params = serial.send_with_response(self.status_cmd, 'status')
params = self.status_cmd.send_with_response(response='status')
self._handle_status(params)
self.reactor.pause(0.100)
serial.register_callback(self._handle_status, 'status')
@ -57,7 +56,7 @@ class ClockSync:
serial.set_clock_est(freq, self.reactor.monotonic(), 0)
# MCU clock querying (status callback invoked from background thread)
def _status_event(self, eventtime):
self.serial.send(self.status_cmd)
self.status_cmd.send()
return eventtime + 1.0
def _handle_status(self, params):
# Extend clock to 64bit

24
klippy/console.py
View File

@ -86,11 +86,10 @@ class KeyboardReader:
self.output("Error: %s" % (str(e),))
return
try:
msg = self.ser.msgparser.create_command(' '.join(parts[2:]))
self.ser.send(' '.join(parts[2:]), minclock=val)
except msgproto.error as e:
self.output("Error: %s" % (str(e),))
return
self.ser.send(msg, minclock=val)
def command_FLOOD(self, parts):
try:
count = int(parts[1])
@ -98,18 +97,18 @@ class KeyboardReader:
except ValueError as e:
self.output("Error: %s" % (str(e),))
return
try:
msg = self.ser.msgparser.create_command(' '.join(parts[3:]))
except msgproto.error as e:
self.output("Error: %s" % (str(e),))
return
msg = ' '.join(parts[3:])
delay_clock = int(delay * self.mcu_freq)
msg_clock = int(self.clocksync.get_clock(self.reactor.monotonic())
+ self.mcu_freq * .200)
try:
for i in range(count):
next_clock = msg_clock + delay_clock
self.ser.send(msg, minclock=msg_clock, reqclock=next_clock)
msg_clock = next_clock
except msgproto.error as e:
self.output("Error: %s" % (str(e),))
return
def command_SUPPRESS(self, parts):
oid = None
try:
@ -164,12 +163,7 @@ class KeyboardReader:
if parts[0] in self.local_commands:
self.local_commands[parts[0]](parts)
return None
try:
msg = self.ser.msgparser.create_command(line)
except msgproto.error as e:
self.output("Error: %s" % (str(e),))
return None
return msg
return line
def process_kbd(self, eventtime):
self.data += os.read(self.fd, 4096)
@ -184,7 +178,11 @@ class KeyboardReader:
msg = self.translate(line.strip(), eventtime)
if msg is None:
continue
try:
self.ser.send(msg)
except msgproto.error as e:
self.output("Error: %s" % (str(e),))
return None
self.data = kbdlines[-1]
def main():

34
klippy/extras/replicape.py
View File

@ -32,7 +32,6 @@ class pca9685_pwm:
self._is_static = False
self._last_clock = 0
self._pwm_max = 0.
self._cmd_queue = self._mcu.alloc_command_queue()
self._set_cmd = None
def get_mcu(self):
return self._mcu
@ -73,17 +72,17 @@ class pca9685_pwm:
self._start_value * self._pwm_max,
self._shutdown_value * self._pwm_max,
self._mcu.seconds_to_clock(self._max_duration)))
cmd_queue = self._mcu.alloc_command_queue()
self._set_cmd = self._mcu.lookup_command(
"schedule_pca9685_out oid=%c clock=%u value=%hu")
"schedule_pca9685_out oid=%c clock=%u value=%hu", cq=cmd_queue)
def set_pwm(self, print_time, value):
clock = self._mcu.print_time_to_clock(print_time)
if self._invert:
value = 1. - value
value = int(max(0., min(1., value)) * self._pwm_max + 0.5)
self._replicape.note_pwm_enable(print_time, self._channel, value)
msg = self._set_cmd.encode(self._oid, clock, value)
self._mcu.send(msg, minclock=self._last_clock, reqclock=clock
, cq=self._cmd_queue)
self._set_cmd.send([self._oid, clock, value],
minclock=self._last_clock, reqclock=clock)
self._last_clock = clock
def set_digital(self, print_time, value):
if value:
@ -137,6 +136,8 @@ class Replicape:
"power_fan0": (pca9685_pwm, 7), "power_fan1": (pca9685_pwm, 8),
"power_fan2": (pca9685_pwm, 9), "power_fan3": (pca9685_pwm, 10) }
# Setup stepper config
self.send_spi_cmd = None
self.last_stepper_time = 0.
self.stepper_dacs = {}
shift_registers = [1, 0, 0, 1, 1]
for port, name in enumerate('xyzeh'):
@ -159,9 +160,7 @@ class Replicape:
self.stepper_dacs[channel] = cur / REPLICAPE_MAX_CURRENT
self.pins[prefix + 'enable'] = (ReplicapeDACEnable, channel)
self.enabled_channels = {ch: False for cl, ch in self.pins.values()}
self.disable_stepper_cmd = "send_spi bus=%d dev=%d msg=%s" % (
REPLICAPE_SHIFT_REGISTER_BUS, REPLICAPE_SHIFT_REGISTER_DEVICE,
"".join(["%02x" % (x,) for x in reversed(shift_registers)]))
self.sr_disabled = tuple(reversed(shift_registers))
if [i for i in [0, 1, 2] if 11+i in self.stepper_dacs]:
# Enable xyz steppers
shift_registers[0] &= ~1
@ -171,11 +170,15 @@ class Replicape:
if (config.getboolean('standstill_power_down', False)
and self.stepper_dacs):
shift_registers[4] &= ~1
self.enable_stepper_cmd = "send_spi bus=%d dev=%d msg=%s" % (
self.sr_enabled = tuple(reversed(shift_registers))
self.host_mcu.add_config_object(self)
self.host_mcu.add_config_cmd("send_spi bus=%d dev=%d msg=%s" % (
REPLICAPE_SHIFT_REGISTER_BUS, REPLICAPE_SHIFT_REGISTER_DEVICE,
"".join(["%02x" % (x,) for x in reversed(shift_registers)]))
self.host_mcu.add_config_cmd(self.disable_stepper_cmd)
self.last_stepper_time = 0.
"".join(["%02x" % (x,) for x in self.sr_disabled])))
def build_config(self):
cmd_queue = self.host_mcu.alloc_command_queue()
self.send_spi_cmd = self.host_mcu.lookup_command(
"send_spi bus=%u dev=%u msg=%*s", cq=cmd_queue)
def note_pwm_start_value(self, channel, start_value, shutdown_value):
self.mcu_pwm_start_value |= not not start_value
self.mcu_pwm_shutdown_value |= not not shutdown_value
@ -200,15 +203,16 @@ class Replicape:
on_dacs = [1 for c in self.stepper_dacs.keys()
if self.enabled_channels[c]]
if not on_dacs:
cmd = self.disable_stepper_cmd
sr = self.sr_disabled
elif is_enable and len(on_dacs) == 1:
cmd = self.enable_stepper_cmd
sr = self.sr_enabled
else:
return
print_time = max(print_time, self.last_stepper_time + PIN_MIN_TIME)
clock = self.host_mcu.print_time_to_clock(print_time)
# XXX - the send_spi message should be scheduled
self.host_mcu.send(self.host_mcu.create_command(cmd),
self.send_spi_cmd.send([REPLICAPE_SHIFT_REGISTER_BUS,
REPLICAPE_SHIFT_REGISTER_DEVICE, sr],
minclock=clock, reqclock=clock)
def setup_pin(self, pin_params):
pin = pin_params['pin']

89
klippy/mcu.py
View File

@ -21,7 +21,7 @@ class MCU_stepper:
self._commanded_pos = self._mcu_position_offset = 0.
self._step_dist = self._inv_step_dist = 1.
self._min_stop_interval = 0.
self._reset_cmd = self._get_position_cmd = None
self._reset_cmd_id = self._get_position_cmd = None
self._ffi_lib = self._stepqueue = None
def get_mcu(self):
return self._mcu
@ -46,17 +46,17 @@ class MCU_stepper:
self._invert_step))
self._mcu.add_config_cmd(
"reset_step_clock oid=%d clock=0" % (self._oid,), is_init=True)
step_cmd = self._mcu.lookup_command(
step_cmd_id = self._mcu.lookup_command_id(
"queue_step oid=%c interval=%u count=%hu add=%hi")
dir_cmd = self._mcu.lookup_command(
dir_cmd_id = self._mcu.lookup_command_id(
"set_next_step_dir oid=%c dir=%c")
self._reset_cmd = self._mcu.lookup_command(
self._reset_cmd_id = self._mcu.lookup_command_id(
"reset_step_clock oid=%c clock=%u")
self._get_position_cmd = self._mcu.lookup_command(
"stepper_get_position oid=%c")
ffi_main, self._ffi_lib = chelper.get_ffi()
self._stepqueue = ffi_main.gc(self._ffi_lib.stepcompress_alloc(
self._mcu.seconds_to_clock(max_error), step_cmd.msgid, dir_cmd.msgid,
self._mcu.seconds_to_clock(max_error), step_cmd_id, dir_cmd_id,
self._invert_dir, self._oid),
self._ffi_lib.stepcompress_free)
self._mcu.register_stepqueue(self._stepqueue)
@ -87,15 +87,15 @@ class MCU_stepper:
ret = self._ffi_lib.stepcompress_reset(self._stepqueue, 0)
if ret:
raise error("Internal error in stepcompress")
data = (self._reset_cmd.msgid, self._oid, 0)
data = (self._reset_cmd_id, self._oid, 0)
ret = self._ffi_lib.stepcompress_queue_msg(
self._stepqueue, data, len(data))
if ret:
raise error("Internal error in stepcompress")
if not did_trigger or self._mcu.is_fileoutput():
return
cmd = self._get_position_cmd.encode(self._oid)
params = self._mcu.send_with_response(cmd, 'stepper_position', self._oid)
params = self._get_position_cmd.send_with_response(
[self._oid], response='stepper_position', response_oid=self._oid)
pos = params['pos']
if self._invert_dir:
pos = -pos
@ -137,7 +137,6 @@ class MCU_endstop:
self._pin = pin_params['pin']
self._pullup = pin_params['pullup']
self._invert = pin_params['invert']
self._cmd_queue = mcu.alloc_command_queue()
self._oid = self._home_cmd = self._query_cmd = None
self._homing = False
self._min_query_time = self._next_query_time = 0.
@ -162,10 +161,12 @@ class MCU_endstop:
self._mcu.add_config_cmd(
"end_stop_set_stepper oid=%d pos=%d stepper_oid=%d" % (
self._oid, i, s.get_oid()), is_init=True)
cmd_queue = self._mcu.alloc_command_queue()
self._home_cmd = self._mcu.lookup_command(
"end_stop_home oid=%c clock=%u sample_ticks=%u sample_count=%c"
" rest_ticks=%u pin_value=%c")
self._query_cmd = self._mcu.lookup_command("end_stop_query oid=%c")
" rest_ticks=%u pin_value=%c", cq=cmd_queue)
self._query_cmd = self._mcu.lookup_command("end_stop_query oid=%c",
cq=cmd_queue)
self._mcu.register_msg(self._handle_end_stop_state, "end_stop_state"
, self._oid)
def home_prepare(self):
@ -176,10 +177,9 @@ class MCU_endstop:
self._homing = True
self._min_query_time = self._mcu.monotonic()
self._next_query_time = self._min_query_time + self.RETRY_QUERY
msg = self._home_cmd.encode(
self._oid, clock, self._mcu.seconds_to_clock(sample_time),
sample_count, rest_ticks, 1 ^ self._invert)
self._mcu.send(msg, reqclock=clock, cq=self._cmd_queue)
self._home_cmd.send(
[self._oid, clock, self._mcu.seconds_to_clock(sample_time),
sample_count, rest_ticks, 1 ^ self._invert], reqclock=clock)
for s in self._steppers:
s.note_homing_start(clock)
def home_wait(self, home_end_time):
@ -208,15 +208,13 @@ class MCU_endstop:
for s in self._steppers:
s.note_homing_end()
self._homing = False
msg = self._home_cmd.encode(self._oid, 0, 0, 0, 0, 0)
self._mcu.send(msg, reqclock=0, cq=self._cmd_queue)
self._home_cmd.send([self._oid, 0, 0, 0, 0, 0])
raise self.TimeoutError("Timeout during endstop homing")
if self._mcu.is_shutdown():
raise error("MCU is shutdown")
if eventtime >= self._next_query_time:
self._next_query_time = eventtime + self.RETRY_QUERY
msg = self._query_cmd.encode(self._oid)
self._mcu.send(msg, cq=self._cmd_queue)
self._query_cmd.send([self._oid])
return True
def query_endstop(self, print_time):
self._homing = False
@ -237,7 +235,6 @@ class MCU_digital_out:
self._is_static = False
self._max_duration = 2.
self._last_clock = 0
self._cmd_queue = mcu.alloc_command_queue()
self._set_cmd = None
def get_mcu(self):
return self._mcu
@ -260,14 +257,13 @@ class MCU_digital_out:
" max_duration=%d" % (
self._oid, self._pin, self._start_value, self._shutdown_value,
self._mcu.seconds_to_clock(self._max_duration)))
cmd_queue = self._mcu.alloc_command_queue()
self._set_cmd = self._mcu.lookup_command(
"schedule_digital_out oid=%c clock=%u value=%c")
"schedule_digital_out oid=%c clock=%u value=%c", cq=cmd_queue)
def set_digital(self, print_time, value):
clock = self._mcu.print_time_to_clock(print_time)
msg = self._set_cmd.encode(
self._oid, clock, (not not value) ^ self._invert)
self._mcu.send(msg, minclock=self._last_clock, reqclock=clock
, cq=self._cmd_queue)
self._set_cmd.send([self._oid, clock, (not not value) ^ self._invert],
minclock=self._last_clock, reqclock=clock)
self._last_clock = clock
def set_pwm(self, print_time, value):
self.set_digital(print_time, value >= 0.5)
@ -285,7 +281,6 @@ class MCU_pwm:
self._is_static = False
self._last_clock = 0
self._pwm_max = 0.
self._cmd_queue = mcu.alloc_command_queue()
self._set_cmd = None
def get_mcu(self):
return self._mcu
@ -304,6 +299,7 @@ class MCU_pwm:
self._shutdown_value = max(0., min(1., shutdown_value))
self._is_static = is_static
def build_config(self):
cmd_queue = self._mcu.alloc_command_queue()
cycle_ticks = self._mcu.seconds_to_clock(self._cycle_time)
if self._hardware_pwm:
self._pwm_max = self._mcu.get_constant_float("PWM_MAX")
@ -322,7 +318,7 @@ class MCU_pwm:
self._shutdown_value * self._pwm_max,
self._mcu.seconds_to_clock(self._max_duration)))
self._set_cmd = self._mcu.lookup_command(
"schedule_pwm_out oid=%c clock=%u value=%hu")
"schedule_pwm_out oid=%c clock=%u value=%hu", cq=cmd_queue)
else:
if (self._start_value not in [0., 1.]
or self._shutdown_value not in [0., 1.]):
@ -341,15 +337,14 @@ class MCU_pwm:
self._start_value >= 0.5, self._shutdown_value >= 0.5,
self._mcu.seconds_to_clock(self._max_duration)))
self._set_cmd = self._mcu.lookup_command(
"schedule_soft_pwm_out oid=%c clock=%u value=%hu")
"schedule_soft_pwm_out oid=%c clock=%u value=%hu", cq=cmd_queue)
def set_pwm(self, print_time, value):
clock = self._mcu.print_time_to_clock(print_time)
if self._invert:
value = 1. - value
value = int(max(0., min(1., value)) * self._pwm_max + 0.5)
msg = self._set_cmd.encode(self._oid, clock, value)
self._mcu.send(msg, minclock=self._last_clock, reqclock=clock
, cq=self._cmd_queue)
self._set_cmd.send([self._oid, clock, value],
minclock=self._last_clock, reqclock=clock)
self._last_clock = clock
class MCU_adc:
@ -362,7 +357,6 @@ class MCU_adc:
self._report_clock = 0
self._oid = self._callback = None
self._inv_max_adc = 0.
self._cmd_queue = mcu.alloc_command_queue()
def get_mcu(self):
return self._mcu
def setup_minmax(self, sample_time, sample_count, minval=0., maxval=1.):
@ -534,12 +528,12 @@ class MCU:
self._config_crc = zlib.crc32('\n'.join(self._config_cmds)) & 0xffffffff
self.add_config_cmd("finalize_config crc=%d" % (self._config_crc,))
def _send_config(self):
msg = self.create_command("get_config")
get_config_cmd = self.lookup_command("get_config")
if self.is_fileoutput():
config_params = {
'is_config': 0, 'move_count': 500, 'crc': self._config_crc}
else:
config_params = self.send_with_response(msg, 'config')
config_params = get_config_cmd.send_with_response(response='config')
if not config_params['is_config']:
if self._restart_method == 'rpi_usb':
# Only configure mcu after usb power reset
@ -548,9 +542,10 @@ class MCU:
logging.info("Sending MCU '%s' printer configuration...",
self._name)
for c in self._config_cmds:
self.send(self.create_command(c))
self._serial.send(c)
if not self.is_fileoutput():
config_params = self.send_with_response(msg, 'config')
config_params = get_config_cmd.send_with_response(
response='config')
if not config_params['is_config']:
if self._is_shutdown:
raise error("MCU '%s' error during config: %s" % (
@ -579,7 +574,7 @@ class MCU:
move_count)
self._ffi_lib.steppersync_set_time(self._steppersync, 0., self._mcu_freq)
for c in self._init_cmds:
self.send(self.create_command(c))
self._serial.send(c)
def _connect(self):
if self.is_fileoutput():
self._connect_file()
@ -637,23 +632,19 @@ class MCU:
def get_max_stepper_error(self):
return self._max_stepper_error
# Wrapper functions
def send(self, cmd, minclock=0, reqclock=0, cq=None):
self._serial.send(cmd, minclock, reqclock, cq=cq)
def send_with_response(self, cmd, name, oid=None):
return self._serial.send_with_response(cmd, name, oid)
def register_msg(self, cb, msg, oid=None):
self._serial.register_callback(cb, msg, oid)
def alloc_command_queue(self):
return self._serial.alloc_command_queue()
def create_command(self, msg):
return self._serial.msgparser.create_command(msg)
def lookup_command(self, msgformat):
return self._serial.msgparser.lookup_command(msgformat)
def lookup_command(self, msgformat, cq=None):
return self._serial.lookup_command(msgformat, cq)
def try_lookup_command(self, msgformat):
try:
return self._serial.msgparser.lookup_command(msgformat)
return self.lookup_command(msgformat)
except self._serial.msgparser.error as e:
return None
def lookup_command_id(self, msgformat):
return self._serial.msgparser.lookup_command(msgformat).msgid
def get_constant_float(self, name):
return self._serial.msgparser.get_constant_float(name)
def print_time_to_clock(self, print_time):
@ -679,7 +670,7 @@ class MCU:
def _shutdown(self, force=False):
if self._emergency_stop_cmd is None or (self._is_shutdown and not force):
return
self.send(self._emergency_stop_cmd.encode())
self._emergency_stop_cmd.send()
def _restart_arduino(self):
logging.info("Attempting MCU '%s' reset", self._name)
self._disconnect()
@ -695,11 +686,11 @@ class MCU:
self._is_shutdown = True
self._shutdown(force=True)
self._reactor.pause(self._reactor.monotonic() + 0.015)
self.send(self._config_reset_cmd.encode())
self._config_reset_cmd.send()
else:
# Attempt reset via reset command
logging.info("Attempting MCU '%s' reset command", self._name)
self.send(self._reset_cmd.encode())
self._reset_cmd.send()
self._reactor.pause(self._reactor.monotonic() + 0.015)
self._disconnect()
def _restart_rpi_usb(self):

2
klippy/msgproto.py
View File

@ -108,7 +108,7 @@ class MessageFormat:
self.param_types = [MessageTypes[fmt] for name, fmt in argparts]
self.param_names = [(name, MessageTypes[fmt]) for name, fmt in argparts]
self.name_to_type = dict(self.param_names)
def encode(self, *params):
def encode(self, params):
out = []
out.append(self.msgid)
for i, t in enumerate(self.param_types):

42
klippy/serialhdl.py
View File

@ -126,17 +126,17 @@ class SerialReader:
with self.lock:
del self.handlers[name, oid]
# Command sending
def send(self, cmd, minclock=0, reqclock=0, cq=None):
def raw_send(self, cmd, minclock, reqclock, cmd_queue):
self.ffi_lib.serialqueue_send(
self.serialqueue, cmd_queue, cmd, len(cmd), minclock, reqclock)
def send(self, msg, minclock=0, reqclock=0):
cmd = self.msgparser.create_command(msg)
self.raw_send(cmd, minclock, reqclock, self.default_cmd_queue)
def lookup_command(self, msgformat, cq=None):
if cq is None:
cq = self.default_cmd_queue
self.ffi_lib.serialqueue_send(
self.serialqueue, cq, cmd, len(cmd), minclock, reqclock)
def encode_and_send(self, data, minclock, reqclock, cq):
self.ffi_lib.serialqueue_encode_and_send(
self.serialqueue, cq, data, len(data), minclock, reqclock)
def send_with_response(self, cmd, name, oid=None):
src = SerialRetryCommand(self, cmd, name, oid)
return src.get_response()
cmd = self.msgparser.lookup_command(msgformat)
return SerialCommand(self, cq, cmd)
def alloc_command_queue(self):
return self.ffi_main.gc(self.ffi_lib.serialqueue_alloc_commandqueue(),
self.ffi_lib.serialqueue_free_commandqueue)
@ -175,6 +175,20 @@ class SerialReader:
def __del__(self):
self.disconnect()
# Wrapper around command sending
class SerialCommand:
def __init__(self, serial, cmd_queue, cmd):
self.serial = serial
self.cmd_queue = cmd_queue
self.cmd = cmd
def send(self, data=(), minclock=0, reqclock=0):
cmd = self.cmd.encode(data)
self.serial.raw_send(cmd, minclock, reqclock, self.cmd_queue)
def send_with_response(self, data=(), response=None, response_oid=None):
cmd = self.cmd.encode(data)
src = SerialRetryCommand(self.serial, cmd, response, response_oid)
return src.get_response()
# Class to retry sending of a query command until a given response is received
class SerialRetryCommand:
TIMEOUT_TIME = 5.0
@ -195,7 +209,7 @@ class SerialRetryCommand:
def send_event(self, eventtime):
if self.response is not None:
return self.serial.reactor.NEVER
self.serial.send(self.cmd)
self.serial.raw_send(self.cmd, 0, 0, self.serial.default_cmd_queue)
return eventtime + self.RETRY_TIME
def handle_callback(self, params):
last_sent_time = params['#sent_time']
@ -217,7 +231,7 @@ class SerialBootStrap:
def __init__(self, serial):
self.serial = serial
self.identify_data = ""
self.identify_cmd = self.serial.msgparser.lookup_command(
self.identify_cmd = self.serial.lookup_command(
"identify offset=%u count=%c")
self.is_done = False
self.serial.register_callback(self.handle_identify, 'identify_response')
@ -241,13 +255,11 @@ class SerialBootStrap:
self.is_done = True
return
self.identify_data += msgdata
imsg = self.identify_cmd.encode(len(self.identify_data), 40)
self.serial.send(imsg)
self.identify_cmd.send([len(self.identify_data), 40])
def send_event(self, eventtime):
if self.is_done:
return self.serial.reactor.NEVER
imsg = self.identify_cmd.encode(len(self.identify_data), 40)
self.serial.send(imsg)
self.identify_cmd.send([len(self.identify_data), 40])
return eventtime + self.RETRY_TIME
def handle_unknown(self, params):
logging.debug("Unknown message %d (len %d) while identifying",