mirror of https://github.com/m-labs/artiq.git
pdq2/mediator: rewrite, adapt to new PDQ RPC format, support anonymous segments, support uploading to controllers
This commit is contained in:
parent
c18efa11b3
commit
0b174085c8
|
|
@ -6,109 +6,155 @@ from artiq.coredevice import rtio
|
|||
|
||||
frame_setup = 20*ns
|
||||
trigger_duration = 50*ns
|
||||
frame_wait = 20*ns
|
||||
sample_period = 10*us # FIXME: check this
|
||||
|
||||
|
||||
class SegmentSequenceError(Exception):
|
||||
pass
|
||||
sample_period = 10*ns
|
||||
delay_margin_factor = 1.0001
|
||||
channels_per_pdq2 = 9
|
||||
|
||||
|
||||
class FrameActiveError(Exception):
|
||||
"""Raised when a frame is active and playback of a segment from another
|
||||
frame is attempted."""
|
||||
pass
|
||||
|
||||
|
||||
class FrameCloseError(Exception):
|
||||
class SegmentSequenceError(Exception):
|
||||
"""Raised when attempting to play back a named segment which is not the
|
||||
next in the sequence."""
|
||||
pass
|
||||
|
||||
|
||||
class InvalidatedError(Exception):
|
||||
"""Raised when attemting to use a frame or segment that has been
|
||||
invalidated (due to disarming the PDQ)."""
|
||||
pass
|
||||
|
||||
|
||||
class ArmError(Exception):
|
||||
"""Raised when attempting to arm an already armed PDQ, to modify the
|
||||
program of an armed PDQ, or to play a segment on a disarmed PDQ."""
|
||||
pass
|
||||
|
||||
|
||||
class _Segment:
|
||||
def __init__(self, frame, sn, duration, host_data):
|
||||
self.core = frame.core
|
||||
def __init__(self, frame, segment_number):
|
||||
self.frame = frame
|
||||
self.sn = sn
|
||||
self.duration = duration
|
||||
self.host_data = host_data
|
||||
self.segment_number = segment_number
|
||||
|
||||
self.lines = []
|
||||
|
||||
# for @kernel
|
||||
self.core = frame.pdq.core
|
||||
|
||||
def add_line(self, duration, channel_data, dac_divider=1):
|
||||
if self.frame.invalidated:
|
||||
raise InvalidatedError
|
||||
if self.frame.pdq.armed:
|
||||
raise ArmError
|
||||
self.lines.append((dac_divider, duration, channel_data))
|
||||
|
||||
def get_duration(self):
|
||||
r = 0*s
|
||||
for dac_divider, duration, _ in self.lines:
|
||||
r += duration*sample_period/dac_divider
|
||||
return r
|
||||
|
||||
@kernel
|
||||
def advance(self):
|
||||
if self.frame.pdq.current_frame != self.frame.fn:
|
||||
raise FrameActiveError
|
||||
if self.frame.pdq.next_sn != self.sn:
|
||||
if self.frame.invalidated:
|
||||
raise InvalidatedError
|
||||
if not self.frame.pdq.armed:
|
||||
raise ArmError
|
||||
# If a frame is currently being played, check that we are next.
|
||||
if (self.frame.pdq.current_frame >= 0
|
||||
and self.frame.pdq.next_segment != self.segment_number):
|
||||
raise SegmentSequenceError
|
||||
self.frame.pdq.next_sn += 1
|
||||
|
||||
t = time_to_cycles(now())
|
||||
self.frame.pdq.trigger.on(t)
|
||||
self.frame.pdq.trigger.off(t + time_to_cycles(trigger_duration))
|
||||
delay(self.duration)
|
||||
self.frame.advance()
|
||||
|
||||
|
||||
class _Frame:
|
||||
def __init__(self, core):
|
||||
self.core = core
|
||||
def __init__(self, pdq, frame_number):
|
||||
self.pdq = pdq
|
||||
self.frame_number = frame_number
|
||||
self.segments = []
|
||||
self.segment_count = 0
|
||||
self.closed = False
|
||||
|
||||
def append(self, t, u, trigger=False, name=None):
|
||||
if self.closed:
|
||||
raise FrameCloseError
|
||||
sn = self.segment_count
|
||||
duration = (t[-1] - t[0])*sample_period
|
||||
segment = _Segment(self, sn, duration, (t, u, trigger))
|
||||
if name is None:
|
||||
# TODO
|
||||
raise NotImplementedError("Anonymous segments are not supported yet")
|
||||
else:
|
||||
self.invalidated = False
|
||||
|
||||
# for @kernel
|
||||
self.core = self.pdq.core
|
||||
|
||||
def create_segment(self, name=None):
|
||||
if self.invalidated:
|
||||
raise InvalidatedError
|
||||
if self.pdq.armed:
|
||||
raise ArmError
|
||||
segment = _Segment(self, self.segment_count)
|
||||
if name is not None:
|
||||
if hasattr(self, name):
|
||||
raise NameError("Segment name already exists")
|
||||
setattr(self, name, segment)
|
||||
self.segments.append(segment)
|
||||
self.segment_count += 1
|
||||
return segment
|
||||
|
||||
def close(self):
|
||||
if self.closed:
|
||||
raise FrameCloseError
|
||||
self.closed = True
|
||||
def _arm(self):
|
||||
self.segment_delays = [
|
||||
time_to_cycles(s.get_duration()*delay_margin_factor, self.core)
|
||||
for s in self.segments]
|
||||
|
||||
@kernel
|
||||
def begin(self):
|
||||
if self.pdq.current_frame >= 0:
|
||||
raise FrameActiveError
|
||||
self.pdq.current_frame = self.fn
|
||||
self.pdq.next_sn = 0
|
||||
def _invalidate(self):
|
||||
self.invalidated = True
|
||||
|
||||
t = (time_to_cycles(now())
|
||||
- time_to_cycles(frame_setup + trigger_duration + frame_wait))
|
||||
self.pdq.frame0.set_value(t, self.fn & 1)
|
||||
self.pdq.frame1.set_value(t, (self.fn & 2) >> 1)
|
||||
self.pdq.frame2.set_value(t, (self.fn & 4) >> 2)
|
||||
t += time_to_cycles(frame_setup)
|
||||
self.pdq.trigger.on(t)
|
||||
self.pdq.trigger.off(t + time_to_cycles(trigger_duration))
|
||||
def _get_program(self):
|
||||
r = []
|
||||
for segment in self.segments:
|
||||
segment_program = [
|
||||
{
|
||||
"dac_divider": dac_divider,
|
||||
"duration": duration,
|
||||
"channel_data": channel_data,
|
||||
"wait_trigger": False,
|
||||
"jump": False
|
||||
} for dac_divider, duration, channel_data in segment.lines]
|
||||
segment_program[-1]["wait_trigger"] = True
|
||||
r += segment_program
|
||||
r[-1]["wait_trigger"] = False
|
||||
r[-1]["jump"] = True
|
||||
return r
|
||||
|
||||
@kernel
|
||||
def advance(self):
|
||||
# TODO
|
||||
raise NotImplementedError
|
||||
if self.invalidated:
|
||||
raise InvalidatedError
|
||||
if not self.pdq.armed:
|
||||
raise ArmError
|
||||
|
||||
@kernel
|
||||
def finish(self):
|
||||
if self.pdq.current_frame != self.fn:
|
||||
raise FrameActiveError
|
||||
if self.pdq.next_sn != self.segment_count:
|
||||
raise FrameActiveError
|
||||
self.pdq.current_frame = -1
|
||||
self.pdq.next_sn = -1
|
||||
t = time_to_cycles(now()) - time_to_cycles(trigger_duration/2)
|
||||
|
||||
def _prepare(self, pdq, fn):
|
||||
if not self.closed:
|
||||
raise FrameCloseError
|
||||
self.pdq = pdq
|
||||
self.fn = fn
|
||||
if self.pdq.current_frame >= 0:
|
||||
# PDQ is in the middle of a frame. Check it is us.
|
||||
if self.frame.pdq.current_frame != self.frame_number:
|
||||
raise FrameActiveError
|
||||
else:
|
||||
# PDQ is in the jump table - set the selection signals
|
||||
# to play our first segment.
|
||||
self.pdq.current_frame = self.frame_number
|
||||
self.pdq.next_segment = 0
|
||||
t2 = t - time_to_cycles(frame_setup)
|
||||
self.pdq.frame0.set_value(t2, self.frame_number & 1)
|
||||
self.pdq.frame1.set_value(t2, (self.frame_number & 2) >> 1)
|
||||
self.pdq.frame2.set_value(t2, (self.frame_number & 4) >> 2)
|
||||
|
||||
def _invalidate(self):
|
||||
del self.pdq
|
||||
del self.fn
|
||||
self.pdq.trigger.on(t)
|
||||
self.pdq.trigger.off(t + time_to_cycles(trigger_duration))
|
||||
|
||||
delay(cycles_to_time(self.segment_delays[self.pdq.next_segment]))
|
||||
self.pdq.next_segment += 1
|
||||
|
||||
# test for end of frame
|
||||
if self.pdq.next_segment == self.segment_count:
|
||||
self.pdq.current_frame = -1
|
||||
self.pdq.next_segment = -1
|
||||
|
||||
|
||||
class CompoundPDQ2(AutoDB):
|
||||
|
|
@ -131,19 +177,42 @@ class CompoundPDQ2(AutoDB):
|
|||
|
||||
self.frames = []
|
||||
self.current_frame = -1
|
||||
self.next_sn = -1
|
||||
self.next_segment = -1
|
||||
self.armed = False
|
||||
|
||||
def create_frame(self):
|
||||
return _Frame(self.core)
|
||||
|
||||
def prepare(self, *frames):
|
||||
# prevent previous frames and their segments from
|
||||
# being (incorrectly) used again
|
||||
def disarm(self):
|
||||
for frame in self.frames:
|
||||
frame._invalidate()
|
||||
self.frames = []
|
||||
self.armed = False
|
||||
|
||||
self.frames = list(frames)
|
||||
for fn, frame in enumerate(frames):
|
||||
frame._prepare(self, fn)
|
||||
def arm(self):
|
||||
if self.armed:
|
||||
raise ArmError
|
||||
for frame in self.frames:
|
||||
frame._arm()
|
||||
|
||||
# TODO: upload to PDQ2 devices
|
||||
full_program = [f._get_program() for f in self.frames]
|
||||
for n, pdq2 in enumerate(self.pdq2s):
|
||||
program = []
|
||||
for full_frame_program in full_program:
|
||||
frame_program = []
|
||||
for full_line in full_frame_program:
|
||||
line = {
|
||||
"dac_divider": full_line["dac_divider"],
|
||||
"duration": full_line["duration"],
|
||||
"channel_data": full_line["channel_data"]
|
||||
[n*channels_per_pdq2:(n+1)*channels_per_pdq2],
|
||||
"wait_trigger": full_line["wait_trigger"],
|
||||
"jump": full_line["jump"]
|
||||
}
|
||||
frame_program.append(line)
|
||||
program.append(frame_program)
|
||||
pdq2.program(program)
|
||||
|
||||
def create_frame(self):
|
||||
if self.armed:
|
||||
raise ArmError
|
||||
r = _Frame(self, len(self.frames))
|
||||
self.frames.append(r)
|
||||
return r
|
||||
|
|
|
|||
Loading…
Reference in New Issue