mcu: Allow each oid object to define its own build_config() method

Create a build_config() method on each oid object and call it just
after connecting to the MCU.  Move code that requires a connected
state from the oid init to its new build_config method.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2017-03-12 21:30:18 -04:00
parent 1d796a4e24
commit 168cb95bd5
1 changed files with 81 additions and 58 deletions

View File

@ -24,32 +24,37 @@ STEPCOMPRESS_ERROR_RET = -989898989
class MCU_stepper:
def __init__(self, mcu, step_pin, dir_pin, min_stop_interval, max_error):
self._mcu = mcu
self._oid = mcu.create_oid()
self._oid = mcu.create_oid(self)
self._max_error = max_error
step_pin, pullup, invert_step = parse_pin_extras(step_pin)
dir_pin, pullup, self._invert_dir = parse_pin_extras(dir_pin)
self._mcu_freq = mcu.get_mcu_freq()
max_error = int(max_error * self._mcu_freq)
self.commanded_position = 0
self._mcu_position_offset = 0
self._mcu_freq = 0.
mcu.add_config_cmd(
"config_stepper oid=%d step_pin=%s dir_pin=%s"
" min_stop_interval=TICKS(%.9f) invert_step=%d" % (
self._oid, step_pin, dir_pin, min_stop_interval, invert_step))
mcu.register_stepper(self)
self._step_cmd = mcu.lookup_command(
self._reset_cmd = self._get_position_cmd = None
self.ffi_lib = self._stepqueue = None
self.print_to_mcu_time = mcu.print_to_mcu_time
def build_config(self):
self._mcu_freq = self._mcu.get_mcu_freq()
max_error = int(self._max_error * self._mcu_freq)
step_cmd = self._mcu.lookup_command(
"queue_step oid=%c interval=%u count=%hu add=%hi")
self._dir_cmd = mcu.lookup_command(
dir_cmd = self._mcu.lookup_command(
"set_next_step_dir oid=%c dir=%c")
self._reset_cmd = mcu.lookup_command(
self._reset_cmd = self._mcu.lookup_command(
"reset_step_clock oid=%c clock=%u")
self._get_position_cmd = mcu.lookup_command(
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(
max_error, self._step_cmd.msgid
, self._dir_cmd.msgid, self._invert_dir, self._oid),
max_error, step_cmd.msgid, dir_cmd.msgid,
self._invert_dir, self._oid),
self.ffi_lib.stepcompress_free)
self.print_to_mcu_time = mcu.print_to_mcu_time
def get_oid(self):
return self._oid
def set_position(self, pos):
@ -144,7 +149,7 @@ class MCU_endstop:
RETRY_QUERY = 1.000
def __init__(self, mcu, pin, stepper):
self._mcu = mcu
self._oid = mcu.create_oid()
self._oid = mcu.create_oid(self)
self._stepper = stepper
stepper_oid = stepper.get_oid()
pin, pullup, self._invert = parse_pin_extras(pin, can_pullup=True)
@ -152,18 +157,21 @@ class MCU_endstop:
mcu.add_config_cmd(
"config_end_stop oid=%d pin=%s pull_up=%d stepper_oid=%d" % (
self._oid, pin, pullup, stepper_oid))
self._home_cmd = mcu.lookup_command(
"end_stop_home oid=%c clock=%u rest_ticks=%u pin_value=%c")
mcu.register_msg(self._handle_end_stop_state, "end_stop_state"
, self._oid)
self._query_cmd = mcu.lookup_command("end_stop_query oid=%c")
self._home_cmd = self._query_cmd = None
self._homing = False
self._min_query_time = 0.
self._min_query_time = self._mcu_freq = 0.
self._next_query_clock = self._home_timeout_clock = 0
self._mcu_freq = mcu.get_mcu_freq()
self._retry_query_ticks = int(self._mcu_freq * self.RETRY_QUERY)
self._retry_query_ticks = 0
self._last_state = {}
self.print_to_mcu_time = mcu.print_to_mcu_time
def build_config(self):
self._mcu_freq = self._mcu.get_mcu_freq()
self._retry_query_ticks = int(self._mcu_freq * self.RETRY_QUERY)
self._home_cmd = self._mcu.lookup_command(
"end_stop_home oid=%c clock=%u rest_ticks=%u pin_value=%c")
self._query_cmd = self._mcu.lookup_command("end_stop_query oid=%c")
self._mcu.register_msg(self._handle_end_stop_state, "end_stop_state"
, self._oid)
def home_start(self, mcu_time, rest_time):
clock = int(mcu_time * self._mcu_freq)
rest_ticks = int(rest_time * self._mcu_freq)
@ -224,19 +232,22 @@ class MCU_endstop:
class MCU_digital_out:
def __init__(self, mcu, pin, max_duration):
self._mcu = mcu
self._oid = mcu.create_oid()
self._oid = mcu.create_oid(self)
pin, pullup, self._invert = parse_pin_extras(pin)
self._last_clock = 0
self._last_value = None
self._mcu_freq = mcu.get_mcu_freq()
self._mcu_freq = 0.
self._cmd_queue = mcu.alloc_command_queue()
mcu.add_config_cmd(
"config_digital_out oid=%d pin=%s default_value=%d"
" max_duration=TICKS(%f)" % (
self._oid, pin, self._invert, max_duration))
self._set_cmd = mcu.lookup_command(
"schedule_digital_out oid=%c clock=%u value=%c")
self._set_cmd = None
self.print_to_mcu_time = mcu.print_to_mcu_time
def build_config(self):
self._mcu_freq = self._mcu.get_mcu_freq()
self._set_cmd = self._mcu.lookup_command(
"schedule_digital_out oid=%c clock=%u value=%c")
def set_digital(self, mcu_time, value):
clock = int(mcu_time * self._mcu_freq)
msg = self._set_cmd.encode(self._oid, clock, value ^ self._invert)
@ -256,10 +267,11 @@ class MCU_pwm:
PWM_MAX = 255.
def __init__(self, mcu, pin, cycle_time, hard_cycle_ticks, max_duration):
self._mcu = mcu
self._oid = mcu.create_oid()
self._hard_cycle_ticks = hard_cycle_ticks
self._oid = mcu.create_oid(self)
pin, pullup, self._invert = parse_pin_extras(pin)
self._last_clock = 0
self._mcu_freq = mcu.get_mcu_freq()
self._mcu_freq = 0.
self._cmd_queue = mcu.alloc_command_queue()
if hard_cycle_ticks:
mcu.add_config_cmd(
@ -267,16 +279,21 @@ class MCU_pwm:
" max_duration=TICKS(%f)" % (
self._oid, pin, hard_cycle_ticks, self._invert,
max_duration))
self._set_cmd = mcu.lookup_command(
"schedule_pwm_out oid=%c clock=%u value=%c")
else:
mcu.add_config_cmd(
"config_soft_pwm_out oid=%d pin=%s cycle_ticks=TICKS(%f)"
" default_value=%d max_duration=TICKS(%f)" % (
self._oid, pin, cycle_time, self._invert, max_duration))
self._set_cmd = mcu.lookup_command(
"schedule_soft_pwm_out oid=%c clock=%u value=%c")
self._set_cmd = None
self.print_to_mcu_time = mcu.print_to_mcu_time
def build_config(self):
self._mcu_freq = self._mcu.get_mcu_freq()
if self._hard_cycle_ticks:
self._set_cmd = self._mcu.lookup_command(
"schedule_pwm_out oid=%c clock=%u value=%c")
else:
self._set_cmd = self._mcu.lookup_command(
"schedule_soft_pwm_out oid=%c clock=%u value=%c")
def set_pwm(self, mcu_time, value):
clock = int(mcu_time * self._mcu_freq)
if self._invert:
@ -290,41 +307,46 @@ class MCU_pwm:
class MCU_adc:
def __init__(self, mcu, pin):
self._mcu = mcu
self._oid = mcu.create_oid()
self._min_sample = 0
self._max_sample = 0xffff
self._sample_ticks = 0
self._sample_count = 1
self._oid = mcu.create_oid(self)
self._min_sample = self._max_sample = 0.
self._sample_time = self._report_time = 0.
self._sample_count = 0
self._report_clock = 0
self._callback = None
self._inv_max_adc = 0.
self._mcu_freq = mcu.get_mcu_freq()
self._mcu_freq = 0.
self._cmd_queue = mcu.alloc_command_queue()
mcu.add_config_cmd("config_analog_in oid=%d pin=%s" % (self._oid, pin))
self._query_cmd = None
mcu.add_init_callback(self._init_callback)
mcu.register_msg(self._handle_analog_in_state, "analog_in_state"
, self._oid)
self._query_cmd = mcu.lookup_command(
self._query_cmd = None
def build_config(self):
self._mcu_freq = self._mcu.get_mcu_freq()
self._report_clock = int(self._report_time * self._mcu_freq)
self._mcu.register_msg(self._handle_analog_in_state, "analog_in_state"
, self._oid)
self._query_cmd = self._mcu.lookup_command(
"query_analog_in oid=%c clock=%u sample_ticks=%u sample_count=%c"
" rest_ticks=%u min_value=%hu max_value=%hu")
def set_minmax(self, sample_time, sample_count, minval=None, maxval=None):
self._sample_ticks = int(sample_time * self._mcu_freq)
def set_minmax(self, sample_time, sample_count, minval=0., maxval=1.):
self._sample_time = sample_time
self._sample_count = sample_count
if minval is None:
minval = 0
if maxval is None:
maxval = 0xffff
mcu_adc_max = self._mcu.serial.msgparser.get_constant_float("ADC_MAX")
max_adc = sample_count * mcu_adc_max
self._min_sample = int(minval * max_adc)
self._max_sample = min(0xffff, int(math.ceil(maxval * max_adc)))
self._inv_max_adc = 1.0 / max_adc
self._min_sample = minval
self._max_sample = maxval
def _init_callback(self):
if not self._sample_count:
return
last_clock, last_clock_time = self._mcu.get_last_clock()
clock = last_clock + int(self._mcu_freq * (1.0 + self._oid * 0.01)) # XXX
sample_ticks = int(self._sample_time * self._mcu_freq)
mcu_adc_max = self._mcu.serial.msgparser.get_constant_float("ADC_MAX")
max_adc = self._sample_count * mcu_adc_max
self._inv_max_adc = 1.0 / max_adc
min_sample = int(self._min_sample * max_adc)
max_sample = min(0xffff, int(math.ceil(self._max_sample * max_adc)))
msg = self._query_cmd.encode(
self._oid, clock, self._sample_ticks, self._sample_count
, self._report_clock, self._min_sample, self._max_sample)
self._oid, clock, sample_ticks, self._sample_count
, self._report_clock, min_sample, max_sample)
self._mcu.send(msg, reqclock=clock, cq=self._cmd_queue)
def _handle_analog_in_state(self, params):
last_value = params['value'] * self._inv_max_adc
@ -333,7 +355,7 @@ class MCU_adc:
if self._callback is not None:
self._callback(last_read_time, last_value)
def set_adc_callback(self, report_time, callback):
self._report_clock = int(report_time * self._mcu_freq)
self._report_time = report_time
self._callback = callback
class MCU:
@ -354,7 +376,7 @@ class MCU:
self.timeout_handler)
# Config building
self._emergency_stop_cmd = self._clear_shutdown_cmd = None
self._num_oids = 0
self._oids = []
self._config_cmds = []
self._config_crc = None
self._init_callbacks = []
@ -452,9 +474,11 @@ class MCU:
self.add_config_cmd(line)
def build_config(self):
# Build config commands
for oid in self._oids:
oid.build_config()
self._add_custom()
self._config_cmds.insert(0, "allocate_oids count=%d" % (
self._num_oids,))
len(self._oids),))
# Resolve pin names
mcu = self.serial.msgparser.get_constant('MCU')
@ -509,10 +533,9 @@ class MCU:
for cb in self._init_callbacks:
cb()
# Config creation helpers
def create_oid(self):
oid = self._num_oids
self._num_oids += 1
return oid
def create_oid(self, oid):
self._oids.append(oid)
return len(self._oids) - 1
def add_config_cmd(self, cmd):
self._config_cmds.append(cmd)
def add_init_callback(self, callback):