run idle kernel on flash

This reverts commit 75ffbeba4d.

.github/pull_request_template.md

@@ -51,7 +51,7 @@ Closes #XXX
 
 ### Documentation Changes
 
-- [ ] Check, test, and update the documentation in [doc/](../doc/). Build documentation (`cd doc/manual/; make html`) to ensure no errors.
+- [ ] Check, test, and update the documentation in [doc/](../doc/). Build documentation (`nix build .#artiq-manual-html; nix build .#artiq-manual-pdf`) to ensure no errors.
 
 ### Git Logistics
 

.gitignore

@@ -11,6 +11,7 @@ __pycache__/
 .ipynb_checkpoints
 /doc/manual/_build
 /build
+/result
 /dist
 /*.egg-info
 /.coverage
@@ -23,7 +24,8 @@ __pycache__/
 /artiq/test/results
 /artiq/examples/*/results
 /artiq/examples/*/last_rid.pyon
-/artiq/examples/*/dataset_db.pyon
+/artiq/examples/*/dataset_db.mdb
+/artiq/examples/*/dataset_db.mdb-lock
 
 # when testing ad-hoc experiments at the root:
 /repository/

README.rst

@@ -5,31 +5,27 @@
   :target: https://m-labs.hk/artiq
 
 ARTIQ (Advanced Real-Time Infrastructure for Quantum physics) is a leading-edge control and data acquisition system for quantum information experiments.
-It is maintained and developed by `M-Labs <https://m-labs.hk>`_ and the initial development was for and in partnership with the `Ion Storage Group at NIST <https://www.nist.gov/pml/time-and-frequency-division/ion-storage>`_. ARTIQ is free software and offered to the entire research community as a solution equally applicable to other challenging control tasks, including outside the field of ion trapping. Many laboratories around the world have adopted ARTIQ as their control system, with over a hundred Sinara hardware crates deployed, and some have `contributed <https://m-labs.hk/experiment-control/funding/>`_ to it.
+It is maintained and developed by `M-Labs <https://m-labs.hk>`_ and the initial development was for and in partnership with the `Ion Storage Group at NIST <https://www.nist.gov/pml/time-and-frequency-division/ion-storage>`_. ARTIQ is free software and offered to the entire research community as a solution equally applicable to other challenging control tasks, including outside the field of ion trapping. Many laboratories around the world have adopted ARTIQ as their control system and some have `contributed <https://m-labs.hk/experiment-control/funding/>`_ to it.
 
-The system features a high-level programming language that helps describing complex experiments, which is compiled and executed on dedicated hardware with nanosecond timing resolution and sub-microsecond latency. It includes graphical user interfaces to parametrize and schedule experiments and to visualize and explore the results.
+The system features a high-level programming language, capable of describing complex experiments, which is compiled and executed on dedicated hardware with nanosecond timing resolution and sub-microsecond latency. It includes graphical user interfaces to parametrize and schedule experiments and to visualize and explore the results.
 
-ARTIQ uses FPGA hardware to perform its time-critical tasks. The `Sinara hardware <https://github.com/sinara-hw>`_, and in particular the Kasli FPGA carrier, is designed to work with ARTIQ.
-ARTIQ is designed to be portable to hardware platforms from different vendors and FPGA manufacturers.
-Several different configurations of a `FPGA evaluation kit <https://www.xilinx.com/products/boards-and-kits/ek-k7-kc705-g.html>`_ and of a `Zynq evaluation kit <https://www.xilinx.com/products/boards-and-kits/ek-z7-zc706-g.html>`_ are also used and supported. FPGA platforms can be combined with any number of additional peripherals, either already accessible from ARTIQ or made accessible with little effort.
+ARTIQ uses FPGA hardware to perform its time-critical tasks. The `Sinara hardware <https://github.com/sinara-hw>`_, and in particular the Kasli FPGA carrier, are designed to work with ARTIQ. ARTIQ is designed to be portable to hardware platforms from different vendors and FPGA manufacturers. Several different configurations of a `FPGA evaluation kit <https://www.xilinx.com/products/boards-and-kits/ek-k7-kc705-g.html>`_ and a `Zynq evaluation kit <https://www.xilinx.com/products/boards-and-kits/ek-z7-zc706-g.html>`_ are also used and supported. FPGA platforms can be combined with any number of additional peripherals, either already accessible from ARTIQ or made accessible with little effort.
 
-ARTIQ and its dependencies are available in the form of Nix packages (for Linux) and MSYS2 packages (for Windows). See `the manual <https://m-labs.hk/experiment-control/resources/>`_ for installation instructions.
-Packages containing pre-compiled binary images to be loaded onto the hardware platforms are supplied for each configuration.
-Like any open source software ARTIQ can equally be built and installed directly from `source <https://github.com/m-labs/artiq>`_.
+ARTIQ and its dependencies are available in the form of Nix packages (for Linux) and MSYS2 packages (for Windows). See `the manual <https://m-labs.hk/experiment-control/resources/>`_ for installation instructions. Packages containing pre-compiled binary images to be loaded onto the hardware platforms are supplied for each configuration. Like any open-source software ARTIQ can equally be built and installed directly from `source <https://github.com/m-labs/artiq>`_.
 
-ARTIQ is supported by M-Labs and developed openly.
-Components, features, fixes, improvements, and extensions are often `funded <https://m-labs.hk/experiment-control/funding/>`_ by and developed for the partnering research groups.
+ARTIQ is supported by M-Labs and developed openly. Components, features, fixes, improvements, and extensions are often `funded <https://m-labs.hk/experiment-control/funding/>`_ by and developed for the partnering research groups.
 
-Core technologies employed include `Python <https://www.python.org/>`_, `Migen <https://github.com/m-labs/migen>`_, `Migen-AXI <https://github.com/peteut/migen-axi>`_, `Rust <https://www.rust-lang.org/>`_, `MiSoC <https://github.com/m-labs/misoc>`_/`VexRiscv <https://github.com/SpinalHDL/VexRiscv>`_, `LLVM <https://llvm.org/>`_/`llvmlite <https://github.com/numba/llvmlite>`_, and `Qt5 <https://www.qt.io/>`_.
+Core technologies employed include `Python <https://www.python.org/>`_, `Migen <https://github.com/m-labs/migen>`_, `Migen-AXI <https://github.com/peteut/migen-axi>`_, `Rust <https://www.rust-lang.org/>`_, `MiSoC <https://github.com/m-labs/misoc>`_/`VexRiscv <https://github.com/SpinalHDL/VexRiscv>`_, `LLVM <https://llvm.org/>`_/`llvmlite <https://github.com/numba/llvmlite>`_, and `Qt6 <https://www.qt.io/>`_.
 
-Website: https://m-labs.hk/artiq
+| Website: https://m-labs.hk/experiment-control/artiq
+| (US-hosted mirror: https://m-labs-intl.com/experiment-control/artiq)
 
 `Cite ARTIQ <http://dx.doi.org/10.5281/zenodo.51303>`_ as ``Bourdeauducq, Sébastien et al. (2016). ARTIQ 1.0. Zenodo. 10.5281/zenodo.51303``.
 
 License
 =======
 
-Copyright (C) 2014-2023 M-Labs Limited.
+Copyright (C) 2014-2024 M-Labs Limited.
 
 ARTIQ is free software: you can redistribute it and/or modify
 it under the terms of the GNU Lesser General Public License as published by

RELEASE_NOTES.rst

@@ -3,9 +3,20 @@
 Release notes
 =============
 
-ARTIQ-8 (Unreleased)
+ARTIQ-9 (Unreleased)
 --------------------
 
+* Zotino monitoring in the dashboard now displays the values in volts.
+* afws_client now uses the "happy eyeballs" algorithm (RFC 6555) for a faster and more
+  reliable connection to the server.
+* The Zadig driver installer was added to the MSYS2 offline installer.
+* Fastino monitoring with Moninj is now supported.
+* Qt6 support.
+* Python 3.12 support.
+
+ARTIQ-8
+-------
+
 Highlights:
 
 * New hardware support:
@@ -28,23 +39,38 @@ Highlights:
   clock, to facilitate implementation of local processing on DRTIO satellites, and to slightly
   reduce RTIO latency.
 * Support for DRTIO-over-EEM, used with Shuttler.
+* Support for WRPLL low-noise clock recovery.
+* Enabled event spreading on DRTIO satellites, using high watermark for lane switching.
 * Added channel names to RTIO error messages.
+* The RTIO analyzer is now proxied by ``aqctl_coreanalyzer_proxy`` typically running on the master
+  machine, similarly to ``aqctl_moninj_proxy``.
 * GUI:
+   - Integrated waveform analyzer, removing the need for external VCD viewers such as GtkWave.
    - Implemented Applet Request Interfaces which allow applets to modify datasets and set the
      current values of widgets in the dashboard's experiment windows.
-   - Implemented a new EntryArea widget which allows argument entry widgets to be used in applets.
+   - Implemented a new ``EntryArea`` widget which allows argument entry widgets to be used in applets.
    - The "Close all applets" command (shortcut: Ctrl-Alt-W) now ignores docked applets,
      making it a convenient way to clean up after exploratory work without destroying a
      carefully arranged default workspace.
    - Hotkeys now organize experiment windows in the order they were last interacted with:
       + CTRL+SHIFT+T tiles experiment windows
       + CTRL+SHIFT+C cascades experiment windows
+   - By enabling the ``quickstyle`` option, ``EnumerationValue`` entry widgets can now alternatively display 
+     its choices as buttons that submit the experiment on click.
+* Datasets can now be associated with units and scale factors, and displayed accordingly in the dashboard
+  including applets, like widgets such as ``NumberValue`` already did in earlier ARTIQ versions.
+* Experiments can now request arguments interactively from the user at any time.
 * Persistent datasets are now stored in a LMDB database for improved performance.
 * Python's built-in types (such as ``float``, or ``List[...]``) can now be used in type annotations on
   kernel functions.
-* Full Python 3.10 support.
 * MSYS2 packaging for Windows, which replaces Conda. Conda packages are still available to
   support legacy installations, but may be removed in a future release.
+* Experiments can now be submitted with revisions set to a branch / tag name instead of only git hashes.
+* Grabber image input now has an optional timeout.
+* On NAR3-supported devices (Kasli-SoC, ZC706), when a Rust panic occurs, a minimal environment is started
+  where the network and ``artiq_coremgmt`` can be used. This allows the user to inspect logs, change
+  configuration options, update the firmware, and reboot the device.
+* Full Python 3.11 support.
 
 Breaking changes:
 

artiq/applets/big_number.py

@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 
-from PyQt5 import QtWidgets, QtCore, QtGui
+from PyQt6 import QtWidgets, QtCore, QtGui
 from artiq.applets.simple import SimpleApplet
 from artiq.tools import scale_from_metadata
 from artiq.gui.tools import LayoutWidget
@@ -17,7 +17,7 @@ class QCancellableLineEdit(QtWidgets.QLineEdit):
     editCancelled = QtCore.pyqtSignal()
 
     def keyPressEvent(self, event):
-        if event.key() == QtCore.Qt.Key_Escape:
+        if event.key() == QtCore.Qt.Key.Key_Escape:
             self.editCancelled.emit()
         else:
             super().keyPressEvent(event)
@@ -34,7 +34,7 @@ class NumberWidget(LayoutWidget):
         self.addWidget(self.number_area, 0, 0)
 
         self.unit_area = QtWidgets.QLabel()
-        self.unit_area.setAlignment(QtCore.Qt.AlignRight | QtCore.Qt.AlignTop)
+        self.unit_area.setAlignment(QtCore.Qt.AlignmentFlag.AlignRight | QtCore.Qt.AlignmentFlag.AlignTop)
         self.addWidget(self.unit_area, 0, 1)
 
         self.lcd_widget = QResponsiveLCDNumber()
@@ -44,7 +44,7 @@ class NumberWidget(LayoutWidget):
 
         self.edit_widget = QCancellableLineEdit()
         self.edit_widget.setValidator(QtGui.QDoubleValidator())
-        self.edit_widget.setAlignment(QtCore.Qt.AlignRight | QtCore.Qt.AlignVCenter)
+        self.edit_widget.setAlignment(QtCore.Qt.AlignmentFlag.AlignRight | QtCore.Qt.AlignmentFlag.AlignVCenter)
         self.edit_widget.editCancelled.connect(self.cancel_edit)
         self.edit_widget.returnPressed.connect(self.confirm_edit)
         self.number_area.addWidget(self.edit_widget)

artiq/applets/image.py

@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 
-import PyQt5  # make sure pyqtgraph imports Qt5
+import PyQt6  # make sure pyqtgraph imports Qt6
 import pyqtgraph
 
 from artiq.applets.simple import SimpleApplet

artiq/applets/plot_hist.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 
-import PyQt5    # make sure pyqtgraph imports Qt5
-from PyQt5.QtCore import QTimer
+import PyQt6    # make sure pyqtgraph imports Qt6
+from PyQt6.QtCore import QTimer
 import pyqtgraph
 
 from artiq.applets.simple import TitleApplet

artiq/applets/plot_xy.py

@@ -1,8 +1,8 @@
 #!/usr/bin/env python3
 
 import numpy as np
-import PyQt5  # make sure pyqtgraph imports Qt5
-from PyQt5.QtCore import QTimer
+import PyQt6  # make sure pyqtgraph imports Qt6
+from PyQt6.QtCore import QTimer
 import pyqtgraph
 
 from artiq.applets.simple import TitleApplet
@@ -24,11 +24,11 @@ class XYPlot(pyqtgraph.PlotWidget):
             y = value[self.args.y]
         except KeyError:
             return
-        x = value.get(self.args.x, (False, None))
+        x = value.get(self.args.x)
         if x is None:
             x = np.arange(len(y))
-        error = value.get(self.args.error, (False, None))
-        fit = value.get(self.args.fit, (False, None))
+        error = value.get(self.args.error)
+        fit = value.get(self.args.fit)
 
         if not len(y) or len(y) != len(x):
             self.mismatch['X values'] = True

artiq/applets/plot_xy_hist.py

@@ -1,8 +1,8 @@
 #!/usr/bin/env python3
 
 import numpy as np
-from PyQt5 import QtWidgets
-from PyQt5.QtCore import QTimer
+from PyQt6 import QtWidgets
+from PyQt6.QtCore import QTimer
 import pyqtgraph
 
 from artiq.applets.simple import SimpleApplet

artiq/applets/progress_bar.py

@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 
-from PyQt5 import QtWidgets
+from PyQt6 import QtWidgets
 
 from artiq.applets.simple import SimpleApplet
 

artiq/applets/simple.py

@@ -24,33 +24,34 @@ class _AppletRequestInterface:
     def set_dataset(self, key, value, unit=None, scale=None, precision=None, persist=None):
         """
         Set a dataset.
-        See documentation of ``artiq.language.environment.set_dataset``.
+        See documentation of :meth:`~artiq.language.environment.HasEnvironment.set_dataset`.
         """
         raise NotImplementedError
 
     def mutate_dataset(self, key, index, value):
         """
         Mutate a dataset.
-        See documentation of ``artiq.language.environment.mutate_dataset``.
+        See documentation of :meth:`~artiq.language.environment.HasEnvironment.mutate_dataset`.
         """
         raise NotImplementedError
 
     def append_to_dataset(self, key, value):
         """
         Append to a dataset.
-        See documentation of ``artiq.language.environment.append_to_dataset``.
+        See documentation of :meth:`~artiq.language.environment.HasEnvironment.append_to_dataset`.
         """
         raise NotImplementedError
 
-    def set_argument_value(self, expurl, name, value):
+    def set_argument_value(self, expurl, key, value):
         """
         Temporarily set the value of an argument in a experiment in the dashboard.
         The value resets to default value when recomputing the argument.
 
         :param expurl: Experiment URL identifying the experiment in the dashboard. Example: 'repo:ArgumentsDemo'.
-        :param name: Name of the argument in the experiment.
-        :param value: Object representing the new temporary value of the argument. For ``Scannable`` arguments, this parameter
-            should be a ``ScanObject``. The type of the ``ScanObject`` will be set as the selected type when this function is called. 
+        :param key: Name of the argument in the experiment.
+        :param value: Object representing the new temporary value of the argument. For :class:`~artiq.language.scan.Scannable` arguments, 
+            this parameter should be a :class:`~artiq.language.scan.ScanObject`. The type of the :class:`~artiq.language.scan.ScanObject` 
+            will be set as the selected type when this function is called. 
         """
         raise NotImplementedError
 
@@ -77,10 +78,10 @@ class AppletRequestIPC(_AppletRequestInterface):
         mod = {"action": "append", "path": [key, 1], "x": value}
         self.ipc.update_dataset(mod)
 
-    def set_argument_value(self, expurl, name, value):
+    def set_argument_value(self, expurl, key, value):
         if isinstance(value, ScanObject):
             value = value.describe()
-        self.ipc.set_argument_value(expurl, name, value)
+        self.ipc.set_argument_value(expurl, key, value)
 
 
 class AppletRequestRPC(_AppletRequestInterface):
@@ -136,9 +137,8 @@ class AppletIPCClient(AsyncioChildComm):
             logger.error("unexpected action reply to embed request: %s",
                          reply["action"])
             self.close_cb()
-
-    def fix_initial_size(self):
-        self.write_pyon({"action": "fix_initial_size"})
+        else:
+            return reply["size_w"], reply["size_h"]
 
     async def listen(self):
         data = None
@@ -182,10 +182,10 @@ class AppletIPCClient(AsyncioChildComm):
         self.write_pyon({"action": "update_dataset",
                          "mod": mod})
 
-    def set_argument_value(self, expurl, name, value):
+    def set_argument_value(self, expurl, key, value):
         self.write_pyon({"action": "set_argument_value",
                          "expurl": expurl,
-                         "name": name,
+                         "key": key,
                          "value": value})
 
 
@@ -255,7 +255,7 @@ class SimpleApplet:
         if self.embed is None:
             dataset_ctl = RPCClient()
             self.loop.run_until_complete(dataset_ctl.connect_rpc(
-                self.args.server, self.args.port_control, "master_dataset_db"))
+                self.args.server, self.args.port_control, "dataset_db"))
             self.req = AppletRequestRPC(self.loop, dataset_ctl)
         else:
             self.req = AppletRequestIPC(self.ipc)
@@ -272,7 +272,7 @@ class SimpleApplet:
                 # HACK: if the window has a frame, there will be garbage
                 # (usually white) displayed at its right and bottom borders
                 #  after it is embedded.
-                self.main_widget.setWindowFlags(QtCore.Qt.FramelessWindowHint)
+                self.main_widget.setWindowFlags(QtCore.Qt.WindowType.FramelessWindowHint)
                 self.main_widget.show()
                 win_id = int(self.main_widget.winId())
                 self.loop.run_until_complete(self.ipc.embed(win_id))
@@ -285,12 +285,13 @@ class SimpleApplet:
                 # 2. applet creates native window without showing it, and
                 #    gets its ID
                 # 3. applet sends the ID to host, host embeds the widget
-                # 4. applet shows the widget
-                # 5. parent resizes the widget
+                #    and returns embedded size
+                # 4. applet is resized to that given size
+                # 5. applet shows the widget
                 win_id = int(self.main_widget.winId())
-                self.loop.run_until_complete(self.ipc.embed(win_id))
+                size_w, size_h = self.loop.run_until_complete(self.ipc.embed(win_id))
+                self.main_widget.resize(size_w, size_h)
                 self.main_widget.show()
-                self.ipc.fix_initial_size()
         else:
             self.main_widget.show()
 

artiq/browser/datasets.py

@@ -1,12 +1,12 @@
 import logging
 import asyncio
 
-from PyQt5 import QtCore, QtWidgets
+from PyQt6 import QtCore, QtGui, QtWidgets
 
 from sipyco.pc_rpc import AsyncioClient as RPCClient
 
 from artiq.tools import short_format
-from artiq.gui.tools import LayoutWidget, QRecursiveFilterProxyModel
+from artiq.gui.tools import LayoutWidget
 from artiq.gui.models import DictSyncTreeSepModel
 
 # reduced read-only version of artiq.dashboard.datasets
@@ -33,7 +33,7 @@ class DatasetCtl:
         try:
             remote = RPCClient()
             await remote.connect_rpc(self.master_host, self.master_port,
-                                     "master_dataset_db")
+                                     "dataset_db")
             try:
                 if op_name == "set":
                     await remote.set(key_or_mod, value, persist, metadata)
@@ -62,8 +62,8 @@ class DatasetsDock(QtWidgets.QDockWidget):
     def __init__(self, dataset_sub, dataset_ctl):
         QtWidgets.QDockWidget.__init__(self, "Datasets")
         self.setObjectName("Datasets")
-        self.setFeatures(QtWidgets.QDockWidget.DockWidgetMovable |
-                         QtWidgets.QDockWidget.DockWidgetFloatable)
+        self.setFeatures(self.DockWidgetFeature.DockWidgetMovable |
+                         self.DockWidgetFeature.DockWidgetFloatable)
 
         grid = LayoutWidget()
         self.setWidget(grid)
@@ -74,9 +74,9 @@ class DatasetsDock(QtWidgets.QDockWidget):
         grid.addWidget(self.search, 0, 0)
 
         self.table = QtWidgets.QTreeView()
-        self.table.setSelectionBehavior(QtWidgets.QAbstractItemView.SelectRows)
+        self.table.setSelectionBehavior(QtWidgets.QAbstractItemView.SelectionBehavior.SelectRows)
         self.table.setSelectionMode(
-            QtWidgets.QAbstractItemView.SingleSelection)
+            QtWidgets.QAbstractItemView.SelectionMode.SingleSelection)
         grid.addWidget(self.table, 1, 0)
 
         metadata_grid = LayoutWidget()
@@ -85,13 +85,13 @@ class DatasetsDock(QtWidgets.QDockWidget):
                                   "rid start_time".split()):
             metadata_grid.addWidget(QtWidgets.QLabel(label), i, 0)
             v = QtWidgets.QLabel()
-            v.setTextInteractionFlags(QtCore.Qt.TextSelectableByMouse)
+            v.setTextInteractionFlags(QtCore.Qt.TextInteractionFlag.TextSelectableByMouse)
             metadata_grid.addWidget(v, i, 1)
             self.metadata[label] = v
         grid.addWidget(metadata_grid, 2, 0)
 
-        self.table.setContextMenuPolicy(QtCore.Qt.ActionsContextMenu)
-        upload_action = QtWidgets.QAction("Upload dataset to master",
+        self.table.setContextMenuPolicy(QtCore.Qt.ContextMenuPolicy.ActionsContextMenu)
+        upload_action = QtGui.QAction("Upload dataset to master",
                                           self.table)
         upload_action.triggered.connect(self.upload_clicked)
         self.table.addAction(upload_action)
@@ -112,7 +112,8 @@ class DatasetsDock(QtWidgets.QDockWidget):
 
     def set_model(self, model):
         self.table_model = model
-        self.table_model_filter = QRecursiveFilterProxyModel()
+        self.table_model_filter = QtCore.QSortFilterProxyModel()
+        self.table_model_filter.setRecursiveFilteringEnabled(True)
         self.table_model_filter.setSourceModel(self.table_model)
         self.table.setModel(self.table_model_filter)
 

artiq/browser/experiments.py

@@ -4,103 +4,42 @@ import os
 from functools import partial
 from collections import OrderedDict
 
-from PyQt5 import QtCore, QtGui, QtWidgets
+from PyQt6 import QtCore, QtGui, QtWidgets
 import h5py
 
 from sipyco import pyon
 
 from artiq import __artiq_dir__ as artiq_dir
-from artiq.gui.tools import (LayoutWidget, WheelFilter, 
-                             log_level_to_name, get_open_file_name)
-from artiq.gui.entries import procdesc_to_entry
+from artiq.gui.tools import (LayoutWidget, log_level_to_name, get_open_file_name)
+from artiq.gui.entries import procdesc_to_entry, EntryTreeWidget
 from artiq.master.worker import Worker, log_worker_exception
 
 logger = logging.getLogger(__name__)
 
 
-class _ArgumentEditor(QtWidgets.QTreeWidget):
+class _ArgumentEditor(EntryTreeWidget):
     def __init__(self, dock):
-        QtWidgets.QTreeWidget.__init__(self)
-        self.setColumnCount(3)
-        self.header().setStretchLastSection(False)
-        try:
-            set_resize_mode = self.header().setSectionResizeMode
-        except AttributeError:
-            set_resize_mode = self.header().setResizeMode
-        set_resize_mode(0, QtWidgets.QHeaderView.ResizeToContents)
-        set_resize_mode(1, QtWidgets.QHeaderView.Stretch)
-        set_resize_mode(2, QtWidgets.QHeaderView.ResizeToContents)
-        self.header().setVisible(False)
-        self.setSelectionMode(self.NoSelection)
-        self.setHorizontalScrollMode(self.ScrollPerPixel)
-        self.setVerticalScrollMode(self.ScrollPerPixel)
-
-        self.setStyleSheet("QTreeWidget {background: " +
-                           self.palette().midlight().color().name() + " ;}")
-
-        self.viewport().installEventFilter(WheelFilter(self.viewport(), True))
-
-        self._groups = dict()
-        self._arg_to_widgets = dict()
+        EntryTreeWidget.__init__(self)
         self._dock = dock
 
         if not self._dock.arguments:
-            self.addTopLevelItem(QtWidgets.QTreeWidgetItem(["No arguments"]))
-        gradient = QtGui.QLinearGradient(
-            0, 0, 0, QtGui.QFontMetrics(self.font()).lineSpacing()*2.5)
-        gradient.setColorAt(0, self.palette().base().color())
-        gradient.setColorAt(1, self.palette().midlight().color())
+            self.insertTopLevelItem(0, QtWidgets.QTreeWidgetItem(["No arguments"]))
 
         for name, argument in self._dock.arguments.items():
-            widgets = dict()
-            self._arg_to_widgets[name] = widgets
+            self.set_argument(name, argument)
 
-            entry = procdesc_to_entry(argument["desc"])(argument)
-            widget_item = QtWidgets.QTreeWidgetItem([name])
-            if argument["tooltip"]:
-                widget_item.setToolTip(0, argument["tooltip"])
-            widgets["entry"] = entry
-            widgets["widget_item"] = widget_item
+        self.quickStyleClicked.connect(self._dock._run_clicked)
 
-            for col in range(3):
-                widget_item.setBackground(col, gradient)
-            font = widget_item.font(0)
-            font.setBold(True)
-            widget_item.setFont(0, font)
-
-            if argument["group"] is None:
-                self.addTopLevelItem(widget_item)
-            else:
-                self._get_group(argument["group"]).addChild(widget_item)
-            fix_layout = LayoutWidget()
-            widgets["fix_layout"] = fix_layout
-            fix_layout.addWidget(entry)
-            self.setItemWidget(widget_item, 1, fix_layout)
-
-            recompute_argument = QtWidgets.QToolButton()
-            recompute_argument.setToolTip("Re-run the experiment's build "
-                                          "method and take the default value")
-            recompute_argument.setIcon(
-                QtWidgets.QApplication.style().standardIcon(
-                    QtWidgets.QStyle.SP_BrowserReload))
-            recompute_argument.clicked.connect(
-                partial(self._recompute_argument_clicked, name))
-            fix_layout = LayoutWidget()
-            fix_layout.addWidget(recompute_argument)
-            self.setItemWidget(widget_item, 2, fix_layout)
-
-        widget_item = QtWidgets.QTreeWidgetItem()
-        self.addTopLevelItem(widget_item)
         recompute_arguments = QtWidgets.QPushButton("Recompute all arguments")
         recompute_arguments.setIcon(
             QtWidgets.QApplication.style().standardIcon(
-                QtWidgets.QStyle.SP_BrowserReload))
+                QtWidgets.QStyle.StandardPixmap.SP_BrowserReload))
         recompute_arguments.clicked.connect(self._recompute_arguments_clicked)
 
         load = QtWidgets.QPushButton("Set arguments from HDF5")
         load.setToolTip("Set arguments from currently selected HDF5 file")
         load.setIcon(QtWidgets.QApplication.style().standardIcon(
-                QtWidgets.QStyle.SP_DialogApplyButton))
+                QtWidgets.QStyle.StandardPixmap.SP_DialogApplyButton))
         load.clicked.connect(self._load_clicked)
 
         buttons = LayoutWidget()
@@ -108,21 +47,7 @@ class _ArgumentEditor(QtWidgets.QTreeWidget):
         buttons.addWidget(load, 1, 2)
         for i, s in enumerate((1, 0, 0, 1)):
             buttons.layout.setColumnStretch(i, s)
-        self.setItemWidget(widget_item, 1, buttons)
-
-    def _get_group(self, name):
-        if name in self._groups:
-            return self._groups[name]
-        group = QtWidgets.QTreeWidgetItem([name])
-        for col in range(3):
-            group.setBackground(col, self.palette().mid())
-            group.setForeground(col, self.palette().brightText())
-            font = group.font(col)
-            font.setBold(True)
-            group.setFont(col, font)
-        self.addTopLevelItem(group)
-        self._groups[name] = group
-        return group
+        self.setItemWidget(self.bottom_item, 1, buttons)
 
     def _load_clicked(self):
         asyncio.ensure_future(self._dock.load_hdf5_task())
@@ -130,8 +55,8 @@ class _ArgumentEditor(QtWidgets.QTreeWidget):
     def _recompute_arguments_clicked(self):
         asyncio.ensure_future(self._dock._recompute_arguments())
 
-    def _recompute_argument_clicked(self, name):
-        asyncio.ensure_future(self._recompute_argument(name))
+    def reset_entry(self, key):
+        asyncio.ensure_future(self._recompute_argument(key))
 
     async def _recompute_argument(self, name):
         try:
@@ -146,29 +71,7 @@ class _ArgumentEditor(QtWidgets.QTreeWidget):
         state = procdesc_to_entry(procdesc).default_state(procdesc)
         argument["desc"] = procdesc
         argument["state"] = state
-
-        widgets = self._arg_to_widgets[name]
-
-        widgets["entry"].deleteLater()
-        widgets["entry"] = procdesc_to_entry(procdesc)(argument)
-        widgets["fix_layout"] = LayoutWidget()
-        widgets["fix_layout"].addWidget(widgets["entry"])
-        self.setItemWidget(widgets["widget_item"], 1, widgets["fix_layout"])
-        self.updateGeometries()
-
-    def save_state(self):
-        expanded = []
-        for k, v in self._groups.items():
-            if v.isExpanded():
-                expanded.append(k)
-        return {"expanded": expanded}
-
-    def restore_state(self, state):
-        for e in state["expanded"]:
-            try:
-                self._groups[e].setExpanded(True)
-            except KeyError:
-                pass
+        self.update_argument(name, argument)
 
 
 log_levels = ["DEBUG", "INFO", "WARNING", "ERROR", "CRITICAL"]
@@ -183,7 +86,7 @@ class _ExperimentDock(QtWidgets.QMdiSubWindow):
         self.resize(100*qfm.averageCharWidth(), 30*qfm.lineSpacing())
         self.setWindowTitle(expurl)
         self.setWindowIcon(QtWidgets.QApplication.style().standardIcon(
-            QtWidgets.QStyle.SP_FileDialogContentsView))
+            QtWidgets.QStyle.StandardPixmap.SP_FileDialogContentsView))
         self.setAcceptDrops(True)
 
         self.layout = QtWidgets.QGridLayout()
@@ -223,22 +126,22 @@ class _ExperimentDock(QtWidgets.QMdiSubWindow):
 
         run = QtWidgets.QPushButton("Analyze")
         run.setIcon(QtWidgets.QApplication.style().standardIcon(
-                QtWidgets.QStyle.SP_DialogOkButton))
+                QtWidgets.QStyle.StandardPixmap.SP_DialogOkButton))
         run.setToolTip("Run analysis stage (Ctrl+Return)")
         run.setShortcut("CTRL+RETURN")
-        run.setSizePolicy(QtWidgets.QSizePolicy.Expanding,
-                          QtWidgets.QSizePolicy.Expanding)
+        run.setSizePolicy(QtWidgets.QSizePolicy.Policy.Expanding,
+                          QtWidgets.QSizePolicy.Policy.Expanding)
         self.layout.addWidget(run, 2, 4)
         run.clicked.connect(self._run_clicked)
         self._run = run
 
         terminate = QtWidgets.QPushButton("Terminate")
         terminate.setIcon(QtWidgets.QApplication.style().standardIcon(
-                QtWidgets.QStyle.SP_DialogCancelButton))
+                QtWidgets.QStyle.StandardPixmap.SP_DialogCancelButton))
         terminate.setToolTip("Terminate analysis (Ctrl+Backspace)")
         terminate.setShortcut("CTRL+BACKSPACE")
-        terminate.setSizePolicy(QtWidgets.QSizePolicy.Expanding,
-                                QtWidgets.QSizePolicy.Expanding)
+        terminate.setSizePolicy(QtWidgets.QSizePolicy.Policy.Expanding,
+                                QtWidgets.QSizePolicy.Policy.Expanding)
         self.layout.addWidget(terminate, 3, 4)
         terminate.clicked.connect(self._terminate_clicked)
         terminate.setEnabled(False)
@@ -277,8 +180,8 @@ class _ExperimentDock(QtWidgets.QMdiSubWindow):
         state = self.argeditor.save_state()
         self.argeditor.deleteLater()
         self.argeditor = _ArgumentEditor(self)
-        self.argeditor.restore_state(state)
         self.layout.addWidget(self.argeditor, 0, 0, 1, 5)
+        self.argeditor.restore_state(state)
 
     async def load_hdf5_task(self, filename=None):
         if filename is None:
@@ -413,7 +316,7 @@ class ExperimentsArea(QtWidgets.QMdiArea):
         asyncio.ensure_future(sub.load_hdf5_task(path))
 
     def mousePressEvent(self, ev):
-        if ev.button() == QtCore.Qt.LeftButton:
+        if ev.button() == QtCore.Qt.MouseButton.LeftButton:
             self.select_experiment()
 
     def paintEvent(self, event):
@@ -466,6 +369,8 @@ class ExperimentsArea(QtWidgets.QMdiArea):
     def initialize_submission_arguments(self, arginfo):
         arguments = OrderedDict()
         for name, (procdesc, group, tooltip) in arginfo.items():
+            if procdesc["ty"] == "EnumerationValue" and procdesc["quickstyle"]:
+                procdesc["quickstyle"] = False
             state = procdesc_to_entry(procdesc).default_state(procdesc)
             arguments[name] = {
                 "desc": procdesc,
@@ -501,7 +406,7 @@ class ExperimentsArea(QtWidgets.QMdiArea):
                            exc_info=True)
             dock = _ExperimentDock(self, expurl, {})
             asyncio.ensure_future(dock._recompute_arguments())
-        dock.setAttribute(QtCore.Qt.WA_DeleteOnClose)
+        dock.setAttribute(QtCore.Qt.WidgetAttribute.WA_DeleteOnClose)
         self.addSubWindow(dock)
         dock.show()
         dock.sigClosed.connect(partial(self.on_dock_closed, dock))

artiq/browser/files.py

@@ -3,7 +3,7 @@ import os
 from datetime import datetime
 
 import h5py
-from PyQt5 import QtCore, QtWidgets, QtGui
+from PyQt6 import QtCore, QtWidgets, QtGui
 
 from sipyco import pyon
 
@@ -69,35 +69,35 @@ class ZoomIconView(QtWidgets.QListView):
     def __init__(self):
         QtWidgets.QListView.__init__(self)
         self._char_width = QtGui.QFontMetrics(self.font()).averageCharWidth()
-        self.setViewMode(self.IconMode)
+        self.setViewMode(self.ViewMode.IconMode)
         w = self._char_width*self.default_size
         self.setIconSize(QtCore.QSize(w, int(w*self.aspect)))
-        self.setFlow(self.LeftToRight)
-        self.setResizeMode(self.Adjust)
+        self.setFlow(self.Flow.LeftToRight)
+        self.setResizeMode(self.ResizeMode.Adjust)
         self.setWrapping(True)
 
     def wheelEvent(self, ev):
-        if ev.modifiers() & QtCore.Qt.ControlModifier:
+        if ev.modifiers() & QtCore.Qt.KeyboardModifier.ControlModifier:
             a = self._char_width*self.min_size
             b = self._char_width*self.max_size
             w = self.iconSize().width()*self.zoom_step**(
                 ev.angleDelta().y()/120.)
             if a <= w <= b:
-                self.setIconSize(QtCore.QSize(w, w*self.aspect))
+                self.setIconSize(QtCore.QSize(int(w), int(w*self.aspect)))
         else:
             QtWidgets.QListView.wheelEvent(self, ev)
 
 
-class Hdf5FileSystemModel(QtWidgets.QFileSystemModel):
+class Hdf5FileSystemModel(QtGui.QFileSystemModel):
     def __init__(self):
-        QtWidgets.QFileSystemModel.__init__(self)
-        self.setFilter(QtCore.QDir.Drives | QtCore.QDir.NoDotAndDotDot |
-                       QtCore.QDir.AllDirs | QtCore.QDir.Files)
+        QtGui.QFileSystemModel.__init__(self)
+        self.setFilter(QtCore.QDir.Filter.Drives | QtCore.QDir.Filter.NoDotAndDotDot |
+                       QtCore.QDir.Filter.AllDirs | QtCore.QDir.Filter.Files)
         self.setNameFilterDisables(False)
         self.setIconProvider(ThumbnailIconProvider())
 
     def data(self, idx, role):
-        if role == QtCore.Qt.ToolTipRole:
+        if role == QtCore.Qt.ItemDataRole.ToolTipRole:
             info = self.fileInfo(idx)
             h5 = open_h5(info)
             if h5 is not None:
@@ -114,7 +114,7 @@ class Hdf5FileSystemModel(QtWidgets.QFileSystemModel):
                 except:
                     logger.warning("unable to read metadata from %s",
                                    info.filePath(), exc_info=True)
-        return QtWidgets.QFileSystemModel.data(self, idx, role)
+        return QtGui.QFileSystemModel.data(self, idx, role)
 
 
 class FilesDock(QtWidgets.QDockWidget):
@@ -125,7 +125,7 @@ class FilesDock(QtWidgets.QDockWidget):
     def __init__(self, datasets, browse_root=""):
         QtWidgets.QDockWidget.__init__(self, "Files")
         self.setObjectName("Files")
-        self.setFeatures(self.DockWidgetMovable | self.DockWidgetFloatable)
+        self.setFeatures(self.DockWidgetFeature.DockWidgetMovable | self.DockWidgetFeature.DockWidgetFloatable)
 
         self.splitter = QtWidgets.QSplitter()
         self.setWidget(self.splitter)
@@ -147,8 +147,8 @@ class FilesDock(QtWidgets.QDockWidget):
         self.rt.setRootIndex(rt_model.mapFromSource(
             self.model.setRootPath(browse_root)))
         self.rt.setHeaderHidden(True)
-        self.rt.setSelectionBehavior(self.rt.SelectRows)
-        self.rt.setSelectionMode(self.rt.SingleSelection)
+        self.rt.setSelectionBehavior(self.rt.SelectionBehavior.SelectRows)
+        self.rt.setSelectionMode(self.rt.SelectionMode.SingleSelection)
         self.rt.selectionModel().currentChanged.connect(
             self.tree_current_changed)
         self.rt.setRootIsDecorated(False)
@@ -252,7 +252,7 @@ class FilesDock(QtWidgets.QDockWidget):
                 100,
                 lambda: self.rt.scrollTo(
                     self.rt.model().mapFromSource(self.model.index(path)),
-                    self.rt.PositionAtCenter)
+                    self.rt.ScrollHint.PositionAtCenter)
             )
         self.model.directoryLoaded.connect(scroll_when_loaded)
         idx = self.rt.model().mapFromSource(idx)

artiq/compiler/builtins.py

@@ -253,6 +253,12 @@ def fn_subkernel_await():
 def fn_subkernel_preload():
     return types.TBuiltinFunction("subkernel_preload")
 
+def fn_subkernel_send():
+    return types.TBuiltinFunction("subkernel_send")
+
+def fn_subkernel_recv():
+    return types.TBuiltinFunction("subkernel_recv")
+
 # Accessors
 
 def is_none(typ):

artiq/compiler/embedding.py

@@ -47,8 +47,15 @@ class SpecializedFunction:
         return hash((self.instance_type, self.host_function))
 
 
+class SubkernelMessageType:
+    def __init__(self, name, value_type):
+        self.name = name
+        self.value_type = value_type
+        self.send_loc = None
+        self.recv_loc = None
+
 class EmbeddingMap:
-    def __init__(self):
+    def __init__(self, old_embedding_map=None):
         self.object_current_key = 0
         self.object_forward_map = {}
         self.object_reverse_map = {}
@@ -65,6 +72,22 @@ class EmbeddingMap:
         self.str_forward_map = {}
         self.str_reverse_map = {}
 
+        # mapping `name` to object ID
+        self.subkernel_message_map = {}
+
+        # subkernels: dict of ID: function, just like object_forward_map
+        # allow the embedding map to be aware of subkernels from other kernels
+        if not old_embedding_map is None:
+            for key, obj_ref in old_embedding_map.subkernels().items():
+                self.object_forward_map[key] = obj_ref
+                obj_id = id(obj_ref)
+                self.object_reverse_map[obj_id] = key
+            for msg_id, msg_type in old_embedding_map.subkernel_messages().items():
+                self.object_forward_map[msg_id] = msg_type
+                obj_id = id(msg_type)
+                self.subkernel_message_map[msg_type.name] = msg_id
+                self.object_reverse_map[obj_id] = msg_id
+
         self.preallocate_runtime_exception_names(["RuntimeError",
                                                   "RTIOUnderflow",
                                                   "RTIOOverflow",
@@ -165,6 +188,11 @@ class EmbeddingMap:
             return self.object_reverse_map[obj_id]
 
         self.object_current_key += 1
+        while self.object_forward_map.get(self.object_current_key):
+            # make sure there's no collisions with previously inserted subkernels
+            # their identifiers must be consistent across all kernels/subkernels
+            self.object_current_key += 1
+        
         self.object_forward_map[self.object_current_key] = obj_ref
         self.object_reverse_map[obj_id] = self.object_current_key
         return self.object_current_key
@@ -177,7 +205,7 @@ class EmbeddingMap:
             obj_ref = self.object_forward_map[obj_id]
             if isinstance(obj_ref, (pytypes.FunctionType, pytypes.MethodType,
                                     pytypes.BuiltinFunctionType, pytypes.ModuleType,
-                                    SpecializedFunction)):
+                                    SpecializedFunction, SubkernelMessageType)):
                 continue
             elif isinstance(obj_ref, type):
                 _, obj_typ = self.type_map[obj_ref]
@@ -193,6 +221,35 @@ class EmbeddingMap:
                     subkernels[k] = v
         return subkernels
 
+    def store_subkernel_message(self, name, value_type, function_type, function_loc):
+        if name in self.subkernel_message_map:
+            msg_id = self.subkernel_message_map[name]
+        else:
+            msg_id = self.store_object(SubkernelMessageType(name, value_type))
+            self.subkernel_message_map[name] = msg_id
+        subkernel_msg = self.retrieve_object(msg_id)
+        if function_type == "send":
+            subkernel_msg.send_loc = function_loc
+        elif function_type == "recv":
+            subkernel_msg.recv_loc = function_loc
+        else:
+            assert False
+        return msg_id, subkernel_msg
+
+    def subkernel_messages(self):
+        messages = {}
+        for msg_id in self.subkernel_message_map.values():
+            messages[msg_id] = self.retrieve_object(msg_id)
+        return messages
+
+    def subkernel_messages_unpaired(self):
+        unpaired = []
+        for msg_id in self.subkernel_message_map.values():
+            msg_obj = self.retrieve_object(msg_id)
+            if msg_obj.send_loc is None or msg_obj.recv_loc is None:
+                unpaired.append(msg_obj)
+        return unpaired
+
     def has_rpc(self):
         return any(filter(
                 lambda x: (inspect.isfunction(x) or inspect.ismethod(x)) and \
@@ -200,10 +257,6 @@ class EmbeddingMap:
                 self.object_forward_map.values()
             ))
 
-    def has_rpc_or_subkernel(self):
-        return any(filter(lambda x: inspect.isfunction(x) or inspect.ismethod(x),
-                          self.object_forward_map.values()))
-
 
 class ASTSynthesizer:
     def __init__(self, embedding_map, value_map, quote_function=None, expanded_from=None):
@@ -694,9 +747,9 @@ class StitchingInferencer(Inferencer):
                 if elt.__class__ == float:
                     state |= IS_FLOAT
                 elif elt.__class__ == int:
-                    if -2**31 < elt < 2**31-1:
+                    if -2**31 <= elt <= 2**31-1:
                         state |= IS_INT32
-                    elif -2**63 < elt < 2**63-1:
+                    elif -2**63 <= elt <= 2**63-1:
                         state |= IS_INT64
                     else:
                         state = -1
@@ -794,7 +847,7 @@ class TypedtreeHasher(algorithm.Visitor):
         return hash(tuple(freeze(getattr(node, field_name)) for field_name in fields))
 
 class Stitcher:
-    def __init__(self, core, dmgr, engine=None, print_as_rpc=True, destination=0, subkernel_arg_types=[]):
+    def __init__(self, core, dmgr, engine=None, print_as_rpc=True, destination=0, subkernel_arg_types=[], old_embedding_map=None):
         self.core = core
         self.dmgr = dmgr
         if engine is None:
@@ -816,7 +869,7 @@ class Stitcher:
 
         self.functions = {}
 
-        self.embedding_map = EmbeddingMap()
+        self.embedding_map = EmbeddingMap(old_embedding_map)
         self.value_map = defaultdict(lambda: [])
         self.definitely_changed = False
 

artiq/compiler/ir.py

@@ -1047,6 +1047,42 @@ class Builtin(Instruction):
     def opcode(self):
         return "builtin({})".format(self.op)
 
+class BuiltinInvoke(Terminator):
+    """
+    A builtin operation which can raise exceptions.
+
+    :ivar op: (string) operation name
+    """
+
+    """
+    :param op: (string) operation name
+    :param normal: (:class:`BasicBlock`) normal target
+    :param exn: (:class:`BasicBlock`) exceptional target
+    """
+    def __init__(self, op, operands, typ, normal, exn, name=None):
+        assert isinstance(op, str)
+        for operand in operands: assert isinstance(operand, Value)
+        assert isinstance(normal, BasicBlock)
+        assert isinstance(exn, BasicBlock)
+        if name is None:
+            name = "BLTINV.{}".format(op)
+        super().__init__(operands + [normal, exn], typ, name)
+        self.op = op
+
+    def copy(self, mapper):
+        self_copy = super().copy(mapper)
+        self_copy.op = self.op
+        return self_copy
+
+    def normal_target(self):
+        return self.operands[-2]
+
+    def exception_target(self):
+        return self.operands[-1]
+
+    def opcode(self):
+        return "builtinInvokable({})".format(self.op)
+
 class Closure(Instruction):
     """
     A closure creation operation.

artiq/compiler/math_fns.py

@@ -61,22 +61,6 @@ unary_fp_runtime_calls = [
     ("cbrt", "cbrt"),
 ]
 
-#: float -> float numpy.* math functions lowered to runtime calls.
-unary_fp_runtime_calls = [
-    ("tan", "tan"),
-    ("arcsin", "asin"),
-    ("arccos", "acos"),
-    ("arctan", "atan"),
-    ("sinh", "sinh"),
-    ("cosh", "cosh"),
-    ("tanh", "tanh"),
-    ("arcsinh", "asinh"),
-    ("arccosh", "acosh"),
-    ("arctanh", "atanh"),
-    ("expm1", "expm1"),
-    ("cbrt", "cbrt"),
-]
-
 scipy_special_unary_runtime_calls = [
     ("erf", "erf"),
     ("erfc", "erfc"),

artiq/compiler/prelude.py

@@ -59,4 +59,6 @@ def globals():
         # ARTIQ subkernel utility functions
         "subkernel_await":     builtins.fn_subkernel_await(),
         "subkernel_preload":   builtins.fn_subkernel_preload(),
+        "subkernel_send":      builtins.fn_subkernel_send(),
+        "subkernel_recv":      builtins.fn_subkernel_recv(), 
     }

artiq/compiler/transforms/artiq_ir_generator.py

@@ -2537,17 +2537,29 @@ class ARTIQIRGenerator(algorithm.Visitor):
                 timeout = self.visit(node.args[1])
             elif len(node.args) == 1 and len(node.keywords) == 0:
                 fn = node.args[0].type
-                timeout = ir.Constant(10_000, builtins.TInt64())
+                timeout = ir.Constant(-1, builtins.TInt64())
             else:
                 assert False
             if types.is_method(fn):
                 fn = types.get_method_function(fn)
             sid = ir.Constant(fn.sid, builtins.TInt32())
             if not builtins.is_none(fn.ret):
-                ret = self.append(ir.Builtin("subkernel_retrieve_return", [sid, timeout], fn.ret))
+                if self.unwind_target is None:
+                    ret = self.append(ir.Builtin("subkernel_retrieve_return", [sid, timeout], fn.ret))
+                else:
+                    after_invoke = self.add_block("invoke")
+                    ret = self.append(ir.BuiltinInvoke("subkernel_retrieve_return", [sid, timeout], 
+                                                       fn.ret, after_invoke, self.unwind_target))
+                    self.current_block = after_invoke
             else:
                 ret = ir.Constant(None, builtins.TNone())
-            self.append(ir.Builtin("subkernel_await_finish", [sid, timeout], builtins.TNone()))
+            if self.unwind_target is None:
+                self.append(ir.Builtin("subkernel_await_finish", [sid, timeout], builtins.TNone()))
+            else:
+                after_invoke = self.add_block("invoke")
+                self.append(ir.BuiltinInvoke("subkernel_await_finish", [sid, timeout], 
+                                                builtins.TNone(), after_invoke, self.unwind_target))
+                self.current_block = after_invoke
             return ret
         elif types.is_builtin(typ, "subkernel_preload"):
             if len(node.args) == 1 and len(node.keywords) == 0:
@@ -2557,7 +2569,51 @@ class ARTIQIRGenerator(algorithm.Visitor):
             if types.is_method(fn):
                 fn = types.get_method_function(fn)
             sid = ir.Constant(fn.sid, builtins.TInt32())
-            return self.append(ir.Builtin("subkernel_preload", [sid], builtins.TNone()))
+            dest = ir.Constant(fn.destination, builtins.TInt32())
+            return self.append(ir.Builtin("subkernel_preload", [sid, dest], builtins.TNone()))
+        elif types.is_builtin(typ, "subkernel_send"):
+            if len(node.args) == 3 and len(node.keywords) == 0:
+                dest = self.visit(node.args[0])
+                name = node.args[1].s
+                value = self.visit(node.args[2])
+            else:
+                assert False
+            msg_id, msg = self.embedding_map.store_subkernel_message(name, value.type, "send", node.loc)
+            msg_id = ir.Constant(msg_id, builtins.TInt32())
+            if value.type != msg.value_type:
+                diag = diagnostic.Diagnostic("error",
+                    "type mismatch for subkernel message '{name}', receiver expects {recv} while sending {send}",
+                    {"name": name, "recv": msg.value_type, "send": value.type},
+                    node.loc)
+                self.engine.process(diag)
+            return self.append(ir.Builtin("subkernel_send", [msg_id, dest, value], builtins.TNone()))
+        elif types.is_builtin(typ, "subkernel_recv"):
+            if len(node.args) == 2 and len(node.keywords) == 0:
+                name = node.args[0].s
+                vartype = node.args[1].value
+                timeout = ir.Constant(-1, builtins.TInt64())
+            elif len(node.args) == 3 and len(node.keywords) == 0:
+                name = node.args[0].s
+                vartype = node.args[1].value
+                timeout = self.visit(node.args[2])
+            else:
+                assert False
+            msg_id, msg = self.embedding_map.store_subkernel_message(name, vartype, "recv", node.loc)
+            msg_id = ir.Constant(msg_id, builtins.TInt32())
+            if vartype != msg.value_type:
+                diag = diagnostic.Diagnostic("error",
+                    "type mismatch for subkernel message '{name}', receiver expects {recv} while sending {send}",
+                    {"name": name, "recv": vartype, "send": msg.value_type},
+                    node.loc)
+                self.engine.process(diag)
+            if self.unwind_target is None:
+                ret = self.append(ir.Builtin("subkernel_recv", [msg_id, timeout], vartype))
+            else:
+                after_invoke = self.add_block("invoke")
+                ret = self.append(ir.BuiltinInvoke("subkernel_recv", [msg_id, timeout], 
+                                                   vartype, after_invoke, self.unwind_target))
+                self.current_block = after_invoke
+            return ret
         elif types.is_exn_constructor(typ):
             return self.alloc_exn(node.type, *[self.visit(arg_node) for arg_node in node.args])
         elif types.is_constructor(typ):
@@ -2909,7 +2965,7 @@ class ARTIQIRGenerator(algorithm.Visitor):
                 format_string += ")"
             elif builtins.is_exception(value.type):
                 # message may not be an actual string...
-                # so we cannot really print it
+                # so we cannot really print itInvoke
                 name    = self.append(ir.GetAttr(value, "#__name__"))
                 param1  = self.append(ir.GetAttr(value, "#__param0__"))
                 param2  = self.append(ir.GetAttr(value, "#__param1__"))

artiq/compiler/transforms/inferencer.py

@@ -1343,6 +1343,57 @@ class Inferencer(algorithm.Visitor):
                                 node.loc, None)
             else:
                 diagnose(valid_forms())
+        elif types.is_builtin(typ, "subkernel_send"):
+            valid_forms = lambda: [
+                valid_form("subkernel_send(dest: numpy.int?, name: str, value: V) -> None"),
+            ]
+            self._unify(node.type, builtins.TNone(),
+                        node.loc, None)
+            if len(node.args) == 3:
+                arg0 = node.args[0]
+                if types.is_var(arg0.type):
+                    pass  # undetermined yet
+                else:
+                    if builtins.is_int(arg0.type):
+                        self._unify(arg0.type, builtins.TInt8(),
+                                    arg0.loc, None)
+                    else:
+                        diagnose(valid_forms())
+                arg1 = node.args[1]
+                self._unify(arg1.type, builtins.TStr(),
+                        arg1.loc, None)
+            else:
+                diagnose(valid_forms())
+        elif types.is_builtin(typ, "subkernel_recv"):
+            valid_forms = lambda: [
+                valid_form("subkernel_recv(name: str, value_type: type) -> value_type"),
+                valid_form("subkernel_recv(name: str, value_type: type, timeout: numpy.int64) -> value_type"),
+            ]
+            if 2 <= len(node.args) <= 3:
+                arg0 = node.args[0]
+                if types.is_var(arg0.type):
+                    pass
+                else:
+                    self._unify(arg0.type, builtins.TStr(),
+                            arg0.loc, None)
+                arg1 = node.args[1]
+                if types.is_var(arg1.type):
+                    pass
+                else:
+                    self._unify(node.type, arg1.value,
+                                node.loc, None)
+                if len(node.args) == 3:
+                    arg2 = node.args[2]
+                    if types.is_var(arg2.type):
+                        pass
+                    elif builtins.is_int(arg2.type):
+                        # promote to TInt64
+                        self._unify(arg2.type, builtins.TInt64(),
+                                    arg2.loc, None)
+                    else:
+                        diagnose(valid_forms())
+            else:
+                diagnose(valid_forms())
         else:
             assert False
 

artiq/compiler/transforms/int_monomorphizer.py

@@ -14,9 +14,9 @@ class IntMonomorphizer(algorithm.Visitor):
     def visit_NumT(self, node):
         if builtins.is_int(node.type):
             if types.is_var(node.type["width"]):
-                if -2**31 < node.n < 2**31-1:
+                if -2**31 <= node.n <= 2**31-1:
                     width = 32
-                elif -2**63 < node.n < 2**63-1:
+                elif -2**63 <= node.n <= 2**63-1:
                     width = 64
                 else:
                     diag = diagnostic.Diagnostic("error",

artiq/compiler/transforms/llvm_ir_generator.py

@@ -399,9 +399,9 @@ class LLVMIRGenerator:
             llty = ll.FunctionType(lli32, [llptr])
 
         elif name == "subkernel_send_message":
-            llty = ll.FunctionType(llvoid, [lli32, lli8, llsliceptr, llptrptr])
+            llty = ll.FunctionType(llvoid, [lli32, lli1, lli8, lli8, llsliceptr, llptrptr])
         elif name == "subkernel_load_run":
-            llty = ll.FunctionType(llvoid, [lli32, lli1])
+            llty = ll.FunctionType(llvoid, [lli32, lli8, lli1])
         elif name == "subkernel_await_finish":
             llty = ll.FunctionType(llvoid, [lli32, lli64])
         elif name == "subkernel_await_message":
@@ -1417,8 +1417,61 @@ class LLVMIRGenerator:
             return self._build_rpc_recv(insn.type, llstackptr)
         elif insn.op == "subkernel_preload":
             llsid = self.map(insn.operands[0])
-            return self.llbuilder.call(self.llbuiltin("subkernel_load_run"), [llsid, ll.Constant(lli1, 0)], 
+            lldest = ll.Constant(lli8, insn.operands[1].value)
+            return self.llbuilder.call(self.llbuiltin("subkernel_load_run"), [llsid, lldest, ll.Constant(lli1, 0)], 
                                 name="subkernel.preload")
+        elif insn.op == "subkernel_send":
+            llmsgid = self.map(insn.operands[0])
+            lldest = self.map(insn.operands[1])
+            return self._build_subkernel_message(llmsgid, lldest, [insn.operands[2]])
+        elif insn.op == "subkernel_recv":
+            llmsgid = self.map(insn.operands[0])
+            lltimeout = self.map(insn.operands[1])
+            lltagptr = self._build_subkernel_tags([insn.type])
+            self.llbuilder.call(self.llbuiltin("subkernel_await_message"), 
+                                [llmsgid, lltimeout, lltagptr, ll.Constant(lli8, 1), ll.Constant(lli8, 1)],
+                                name="subkernel.await.message")
+            llstackptr = self.llbuilder.call(self.llbuiltin("llvm.stacksave"), [],
+                                             name="subkernel.arg.stack")
+            return self._build_rpc_recv(insn.type, llstackptr)
+        else:
+            assert False
+
+    def process_BuiltinInvoke(self, insn):
+        llnormalblock = self.map(insn.normal_target())
+        llunwindblock = self.map(insn.exception_target())
+        if insn.op == "subkernel_retrieve_return":
+            llsid = self.map(insn.operands[0])
+            lltimeout = self.map(insn.operands[1])
+            lltagptr = self._build_subkernel_tags([insn.type])
+            llheadu = self.llbuilder.append_basic_block(name="subkernel.await.unwind")
+            self.llbuilder.invoke(self.llbuiltin("subkernel_await_message"), 
+                                  [llsid, lltimeout, lltagptr, ll.Constant(lli8, 1), ll.Constant(lli8, 1)],
+                                  llheadu, llunwindblock,
+                                  name="subkernel.await.message")
+            self.llbuilder.position_at_end(llheadu)
+            llstackptr = self.llbuilder.call(self.llbuiltin("llvm.stacksave"), [],
+                                             name="subkernel.arg.stack")
+            return self._build_rpc_recv(insn.type, llstackptr, llnormalblock, llunwindblock)
+        elif insn.op == "subkernel_await_finish":
+            llsid = self.map(insn.operands[0])
+            lltimeout = self.map(insn.operands[1])
+            return self.llbuilder.invoke(self.llbuiltin("subkernel_await_finish"), [llsid, lltimeout],
+                                         llnormalblock, llunwindblock,
+                                         name="subkernel.await.finish")
+        elif insn.op == "subkernel_recv":
+            llmsgid = self.map(insn.operands[0])
+            lltimeout = self.map(insn.operands[1])
+            lltagptr = self._build_subkernel_tags([insn.type])
+            llheadu = self.llbuilder.append_basic_block(name="subkernel.await.unwind")
+            self.llbuilder.invoke(self.llbuiltin("subkernel_await_message"), 
+                                  [llmsgid, lltimeout, lltagptr, ll.Constant(lli8, 1), ll.Constant(lli8, 1)],
+                                  llheadu, llunwindblock,
+                                  name="subkernel.await.message")
+            self.llbuilder.position_at_end(llheadu)
+            llstackptr = self.llbuilder.call(self.llbuiltin("llvm.stacksave"), [],
+                                             name="subkernel.arg.stack")
+            return self._build_rpc_recv(insn.type, llstackptr, llnormalblock, llunwindblock)
         else:
             assert False
 
@@ -1427,7 +1480,7 @@ class LLVMIRGenerator:
         llmax = self.map(insn.operands[1])
         lltagptr = self._build_subkernel_tags(insn.arg_types)
         return self.llbuilder.call(self.llbuiltin("subkernel_await_message"), 
-                                    [ll.Constant(lli32, 0), ll.Constant(lli64, 10_000), lltagptr, llmin, llmax],
+                                    [ll.Constant(lli32, -1), ll.Constant(lli64, 10_000), lltagptr, llmin, llmax],
                                     name="subkernel.await.args")
 
     def process_Closure(self, insn):
@@ -1579,11 +1632,8 @@ class LLVMIRGenerator:
             self.llbuilder.branch(llnormalblock)
         return llret
 
-    def _build_rpc(self, fun_loc, fun_type, args, llnormalblock, llunwindblock):
-        llservice = ll.Constant(lli32, fun_type.service)
-
+    def _build_arg_tag(self, args, call_type):
         tag = b""
-
         for arg in args:
             def arg_error_handler(typ):
                 printer = types.TypePrinter()
@@ -1592,12 +1642,18 @@ class LLVMIRGenerator:
                     {"type": printer.name(typ)},
                     arg.loc)
                 diag = diagnostic.Diagnostic("error",
-                    "type {type} is not supported in remote procedure calls",
-                    {"type": printer.name(arg.type)},
+                    "type {type} is not supported in {call_type} calls",
+                    {"type": printer.name(arg.type), "call_type": call_type},
                     arg.loc, notes=[note])
                 self.engine.process(diag)
             tag += ir.rpc_tag(arg.type, arg_error_handler)
         tag += b":"
+        return tag
+
+    def _build_rpc(self, fun_loc, fun_type, args, llnormalblock, llunwindblock):
+        llservice = ll.Constant(lli32, fun_type.service)
+
+        tag = self._build_arg_tag(args, call_type="remote procedure")
 
         def ret_error_handler(typ):
             printer = types.TypePrinter()
@@ -1660,59 +1716,48 @@ class LLVMIRGenerator:
 
     def _build_subkernel_call(self, fun_loc, fun_type, args):
         llsid = ll.Constant(lli32, fun_type.sid)
-        tag = b""
-
-        for arg in args:
-            def arg_error_handler(typ):
-                printer = types.TypePrinter()
-                note = diagnostic.Diagnostic("note",
-                    "value of type {type}",
-                    {"type": printer.name(typ)},
-                    arg.loc)
-                diag = diagnostic.Diagnostic("error",
-                    "type {type} is not supported in subkernel calls",
-                    {"type": printer.name(arg.type)},
-                    arg.loc, notes=[note])
-                self.engine.process(diag)
-            tag += ir.rpc_tag(arg.type, arg_error_handler)
-        tag += b":"
-
+        lldest = ll.Constant(lli8, fun_type.destination)
         # run the kernel first
-        self.llbuilder.call(self.llbuiltin("subkernel_load_run"), [llsid, ll.Constant(lli1, 1)])
+        self.llbuilder.call(self.llbuiltin("subkernel_load_run"), [llsid, lldest, ll.Constant(lli1, 1)])
+
+        if args:
+            # only send args if there's anything to send, 'self' is excluded
+            self._build_subkernel_message(llsid, lldest, args)
+
+        return llsid
+
+    def _build_subkernel_message(self, llid, lldest, args):
+        # args (or messages) are sent in the same vein as RPC
+        tag = self._build_arg_tag(args, call_type="subkernel")
 
-        # arg sent in the same vein as RPC
         llstackptr = self.llbuilder.call(self.llbuiltin("llvm.stacksave"), [],
-                                         name="subkernel.stack")
-
+                                            name="subkernel.stack")
         lltag = self.llconst_of_const(ir.Constant(tag, builtins.TStr()))
         lltagptr = self.llbuilder.alloca(lltag.type)
         self.llbuilder.store(lltag, lltagptr)
 
-        if args:
-            # only send args if there's anything to send, 'self' is excluded
-            llargs = self.llbuilder.alloca(llptr, ll.Constant(lli32, len(args)),
-                                        name="subkernel.args")
-            for index, arg in enumerate(args):
-                if builtins.is_none(arg.type):
-                    llargslot = self.llbuilder.alloca(llunit,
-                                                    name="subkernel.arg{}".format(index))
-                else:
-                    llarg = self.map(arg)
-                    llargslot = self.llbuilder.alloca(llarg.type,
-                                                    name="subkernel.arg{}".format(index))
-                    self.llbuilder.store(llarg, llargslot)
-                llargslot = self.llbuilder.bitcast(llargslot, llptr)
+        llargs = self.llbuilder.alloca(llptr, ll.Constant(lli32, len(args)),
+                                    name="subkernel.args")
+        for index, arg in enumerate(args):
+            if builtins.is_none(arg.type):
+                llargslot = self.llbuilder.alloca(llunit,
+                                                name="subkernel.arg{}".format(index))
+            else:
+                llarg = self.map(arg)
+                llargslot = self.llbuilder.alloca(llarg.type,
+                                                name="subkernel.arg{}".format(index))
+                self.llbuilder.store(llarg, llargslot)
+            llargslot = self.llbuilder.bitcast(llargslot, llptr)
 
-                llargptr = self.llbuilder.gep(llargs, [ll.Constant(lli32, index)])
-                self.llbuilder.store(llargslot, llargptr)
+            llargptr = self.llbuilder.gep(llargs, [ll.Constant(lli32, index)])
+            self.llbuilder.store(llargslot, llargptr)
 
-            llargcount = ll.Constant(lli8, len(args))
+        llargcount = ll.Constant(lli8, len(args))
 
-            self.llbuilder.call(self.llbuiltin("subkernel_send_message"),
-                                [llsid, llargcount, lltagptr, llargs])
-            self.llbuilder.call(self.llbuiltin("llvm.stackrestore"), [llstackptr])
-
-        return llsid
+        llisreturn = ll.Constant(lli1, False)
+        self.llbuilder.call(self.llbuiltin("subkernel_send_message"),
+                            [llid, llisreturn, lldest, llargcount, lltagptr, llargs])
+        return self.llbuilder.call(self.llbuiltin("llvm.stackrestore"), [llstackptr])
 
     def _build_subkernel_return(self, insn):
         # builds a remote return.
@@ -1746,10 +1791,12 @@ class LLVMIRGenerator:
         llretslot = self.llbuilder.bitcast(llretslot, llptr)
         self.llbuilder.store(llretslot, llrets)
 
-        llsid = ll.Constant(lli32, 0)  # return goes back to master, sid is ignored
+        llsid = ll.Constant(lli32, 0)  # return goes back to the caller, sid is ignored
         lltagcount = ll.Constant(lli8, 1)  # only one thing is returned
+        llisreturn = ll.Constant(lli1, True)  # it's a return, so destination is ignored
+        lldest = ll.Constant(lli8, 0)
         self.llbuilder.call(self.llbuiltin("subkernel_send_message"),
-                            [llsid, lltagcount, lltagptr, llrets])
+                            [llsid, llisreturn, lldest, lltagcount, lltagptr, llrets])
 
     def process_Call(self, insn):
         functiontyp = insn.target_function().type

artiq/coredevice/ad53xx.py

@@ -1,8 +1,8 @@
-""""RTIO driver for the Analog Devices AD53[67][0123] family of multi-channel
+"""RTIO driver for the Analog Devices AD53[67][0123] family of multi-channel
 Digital to Analog Converters.
 
 Output event replacement is not supported and issuing commands at the same
-time is an error.
+time results in a collision error.
 """
 
 # Designed from the data sheets and somewhat after the linux kernel
@@ -131,10 +131,10 @@ class AD53xx:
       optimized for speed; datasheet says t22: 25ns min SCLK edge to SDO
       valid, and suggests the SPI speed for reads should be <=20 MHz)
     :param vref: DAC reference voltage (default: 5.)
-    :param offset_dacs: Initial register value for the two offset DACs, device
-      dependent and must be set correctly for correct voltage to mu
-      conversions. Knowledge of his state is not transferred between
-      experiments. (default: 8192)
+    :param offset_dacs: Initial register value for the two offset DACs 
+      (default: 8192). Device dependent and must be set correctly for 
+      correct voltage-to-mu conversions. Knowledge of this state is 
+      not transferred between experiments.
     :param core_device: Core device name (default: "core")
     """
     kernel_invariants = {"bus", "ldac", "clr", "chip_select", "div_write",
@@ -202,7 +202,7 @@ class AD53xx:
         :param op: Operation to perform, one of :const:`AD53XX_READ_X1A`,
           :const:`AD53XX_READ_X1B`, :const:`AD53XX_READ_OFFSET`,
           :const:`AD53XX_READ_GAIN` etc. (default: :const:`AD53XX_READ_X1A`).
-        :return: The 16 bit register value
+        :return: The 16-bit register value
         """
         self.bus.write(ad53xx_cmd_read_ch(channel, op) << 8)
         self.bus.set_config_mu(SPI_AD53XX_CONFIG | spi.SPI_INPUT, 24,
@@ -309,7 +309,7 @@ class AD53xx:
 
         This method does not advance the timeline; write events are scheduled
         in the past. The DACs will synchronously start changing their output
-        levels `now`.
+        levels ``now``.
 
         If no LDAC device was defined, the LDAC pulse is skipped.
 
@@ -364,8 +364,8 @@ class AD53xx:
         high) can be calibrated in this fashion.
 
         :param channel: The number of the calibrated channel
-        :params vzs: Measured voltage with the DAC set to zero-scale (0x0000)
-        :params vfs: Measured voltage with the DAC set to full-scale (0xffff)
+        :param vzs: Measured voltage with the DAC set to zero-scale (0x0000)
+        :param vfs: Measured voltage with the DAC set to full-scale (0xffff)
         """
         offset_err = voltage_to_mu(vzs, self.offset_dacs, self.vref)
         gain_err = voltage_to_mu(vfs, self.offset_dacs, self.vref) - (

artiq/coredevice/ad9910.py

@@ -114,27 +114,27 @@ class AD9910:
         (as configured through CFG_MASK_NU), 4-7 for individual channels.
     :param cpld_device: Name of the Urukul CPLD this device is on.
     :param sw_device: Name of the RF switch device. The RF switch is a
-        TTLOut channel available as the :attr:`sw` attribute of this instance.
+        TTLOut channel available as the ``sw`` attribute of this instance.
     :param pll_n: DDS PLL multiplier. The DDS sample clock is
-        f_ref/clk_div*pll_n where f_ref is the reference frequency and
-        clk_div is the reference clock divider (both set in the parent
+        ``f_ref / clk_div * pll_n`` where ``f_ref`` is the reference frequency and
+        ``clk_div`` is the reference clock divider (both set in the parent
         Urukul CPLD instance).
     :param pll_en: PLL enable bit, set to 0 to bypass PLL (default: 1).
         Note that when bypassing the PLL the red front panel LED may remain on.
     :param pll_cp: DDS PLL charge pump setting.
     :param pll_vco: DDS PLL VCO range selection.
-    :param sync_delay_seed: SYNC_IN delay tuning starting value.
-        To stabilize the SYNC_IN delay tuning, run :meth:`tune_sync_delay` once
+    :param sync_delay_seed: ``SYNC_IN`` delay tuning starting value.
+        To stabilize the ``SYNC_IN`` delay tuning, run :meth:`tune_sync_delay` once
         and set this to the delay tap number returned (default: -1 to signal no
         synchronization and no tuning during :meth:`init`).
-        Can be a string of the form "eeprom_device:byte_offset" to read the
-        value from a I2C EEPROM; in which case, `io_update_delay` must be set
+        Can be a string of the form ``eeprom_device:byte_offset`` to read the
+        value from a I2C EEPROM, in which case ``io_update_delay`` must be set
         to the same string value.
-    :param io_update_delay: IO_UPDATE pulse alignment delay.
-        To align IO_UPDATE to SYNC_CLK, run :meth:`tune_io_update_delay` and
+    :param io_update_delay: ``IO_UPDATE`` pulse alignment delay.
+        To align ``IO_UPDATE`` to ``SYNC_CLK``, run :meth:`tune_io_update_delay` and
         set this to the delay tap number returned.
-        Can be a string of the form "eeprom_device:byte_offset" to read the
-        value from a I2C EEPROM; in which case, `sync_delay_seed` must be set
+        Can be a string of the form ``eeprom_device:byte_offset`` to read the
+        value from a I2C EEPROM, in which case ``sync_delay_seed`` must be set
         to the same string value.
     """
 
@@ -188,9 +188,7 @@ class AD9910:
 
     @kernel
     def set_phase_mode(self, phase_mode: TInt32):
-        r"""Set the default phase mode.
-
-        for future calls to :meth:`set` and
+        r"""Set the default phase mode for future calls to :meth:`set` and
         :meth:`set_mu`. Supported phase modes are:
 
         * :const:`PHASE_MODE_CONTINUOUS`: the phase accumulator is unchanged
@@ -233,7 +231,7 @@ class AD9910:
 
     @kernel
     def write16(self, addr: TInt32, data: TInt32):
-        """Write to 16 bit register.
+        """Write to 16-bit register.
 
         :param addr: Register address
         :param data: Data to be written
@@ -244,7 +242,7 @@ class AD9910:
 
     @kernel
     def write32(self, addr: TInt32, data: TInt32):
-        """Write to 32 bit register.
+        """Write to 32-bit register.
 
         :param addr: Register address
         :param data: Data to be written
@@ -258,7 +256,7 @@ class AD9910:
 
     @kernel
     def read16(self, addr: TInt32) -> TInt32:
-        """Read from 16 bit register.
+        """Read from 16-bit register.
 
         :param addr: Register address
         """
@@ -273,7 +271,7 @@ class AD9910:
 
     @kernel
     def read32(self, addr: TInt32) -> TInt32:
-        """Read from 32 bit register.
+        """Read from 32-bit register.
 
         :param addr: Register address
         """
@@ -288,10 +286,10 @@ class AD9910:
 
     @kernel
     def read64(self, addr: TInt32) -> TInt64:
-        """Read from 64 bit register.
+        """Read from 64-bit register.
 
         :param addr: Register address
-        :return: 64 bit integer register value
+        :return: 64-bit integer register value
         """
         self.bus.set_config_mu(
             urukul.SPI_CONFIG, 8,
@@ -311,10 +309,10 @@ class AD9910:
 
     @kernel
     def write64(self, addr: TInt32, data_high: TInt32, data_low: TInt32):
-        """Write to 64 bit register.
+        """Write to 64-bit register.
 
         :param addr: Register address
-        :param data_high: High (MSB) 32 bits of the data
+        :param data_high: High (MSB) 32 data bits 
         :param data_low: Low (LSB) 32 data bits
         """
         self.bus.set_config_mu(urukul.SPI_CONFIG, 8,
@@ -332,8 +330,9 @@ class AD9910:
         """Write data to RAM.
 
         The profile to write to and the step, start, and end address
-        need to be configured before and separately using
-        :meth:`set_profile_ram` and the parent CPLD `set_profile`.
+        need to be configured in advance and separately using
+        :meth:`set_profile_ram` and the parent CPLD
+        :meth:`~artiq.coredevice.urukul.CPLD.set_profile`.
 
         :param data: Data to be written to RAM.
         """
@@ -354,7 +353,8 @@ class AD9910:
 
         The profile to read from and the step, start, and end address
         need to be configured before and separately using
-        :meth:`set_profile_ram` and the parent CPLD `set_profile`.
+        :meth:`set_profile_ram` and the parent CPLD 
+        :meth:`~artiq.coredevice.urukul.CPLD.set_profile`.
 
         :param data: List to be filled with data read from RAM.
         """
@@ -390,9 +390,9 @@ class AD9910:
                  manual_osk_external: TInt32 = 0,
                  osk_enable: TInt32 = 0,
                  select_auto_osk: TInt32 = 0):
-        """Set CFR1. See the AD9910 datasheet for parameter meanings.
+        """Set CFR1. See the AD9910 datasheet for parameter meanings and sizes.
 
-        This method does not pulse IO_UPDATE.
+        This method does not pulse ``IO_UPDATE.``
 
         :param power_down: Power down bits.
         :param phase_autoclear: Autoclear phase accumulator.
@@ -429,9 +429,9 @@ class AD9910:
                  effective_ftw: TInt32 = 1,
                  sync_validation_disable: TInt32 = 0, 
                  matched_latency_enable: TInt32 = 0):
-        """Set CFR2. See the AD9910 datasheet for parameter meanings.
+        """Set CFR2. See the AD9910 datasheet for parameter meanings and sizes.
 
-        This method does not pulse IO_UPDATE.
+        This method does not pulse ``IO_UPDATE``.
 
         :param asf_profile_enable: Enable amplitude scale from single tone profiles.
         :param drg_enable: Digital ramp enable.
@@ -456,14 +456,14 @@ class AD9910:
         """Initialize and configure the DDS.
 
         Sets up SPI mode, confirms chip presence, powers down unused blocks,
-        configures the PLL, waits for PLL lock. Uses the
-        IO_UPDATE signal multiple times.
+        configures the PLL, waits for PLL lock. Uses the ``IO_UPDATE`` 
+        signal multiple times.
 
         :param blind: Do not read back DDS identity and do not wait for lock.
         """
         self.sync_data.init()
         if self.sync_data.sync_delay_seed >= 0 and not self.cpld.sync_div:
-            raise ValueError("parent cpld does not drive SYNC")
+            raise ValueError("parent CPLD does not drive SYNC")
         if self.sync_data.sync_delay_seed >= 0:
             if self.sysclk_per_mu != self.sysclk * self.core.ref_period:
                 raise ValueError("incorrect clock ratio for synchronization")
@@ -514,7 +514,7 @@ class AD9910:
     def power_down(self, bits: TInt32 = 0b1111):
         """Power down DDS.
 
-        :param bits: Power down bits, see datasheet
+        :param bits: Power-down bits, see datasheet
         """
         self.set_cfr1(power_down=bits)
         self.cpld.io_update.pulse(1 * us)
@@ -534,23 +534,23 @@ class AD9910:
         After the SPI transfer, the shared IO update pin is pulsed to
         activate the data.
 
-        .. seealso: :meth:`set_phase_mode` for a definition of the different
+        .. seealso: :meth:`AD9910.set_phase_mode` for a definition of the different
             phase modes.
 
-        :param ftw: Frequency tuning word: 32 bit.
-        :param pow_: Phase tuning word: 16 bit unsigned.
-        :param asf: Amplitude scale factor: 14 bit unsigned.
+        :param ftw: Frequency tuning word: 32-bit.
+        :param pow_: Phase tuning word: 16-bit unsigned.
+        :param asf: Amplitude scale factor: 14-bit unsigned.
         :param phase_mode: If specified, overrides the default phase mode set
             by :meth:`set_phase_mode` for this call.
         :param ref_time_mu: Fiducial time used to compute absolute or tracking
-            phase updates. In machine units as obtained by `now_mu()`.
+            phase updates. In machine units as obtained by :meth:`~artiq.language.core.now_mu()`.
         :param profile: Single tone profile number to set (0-7, default: 7).
-            Ineffective if `ram_destination` is specified.
+            Ineffective if ``ram_destination`` is specified.
         :param ram_destination: RAM destination (:const:`RAM_DEST_FTW`,
             :const:`RAM_DEST_POW`, :const:`RAM_DEST_ASF`,
             :const:`RAM_DEST_POWASF`). If specified, write free DDS parameters
             to the ASF/FTW/POW registers instead of to the single tone profile
-            register (default behaviour, see `profile`).
+            register (default behaviour, see ``profile``).
         :return: Resulting phase offset word after application of phase
             tracking offset. When using :const:`PHASE_MODE_CONTINUOUS` in
             subsequent calls, use this value as the "current" phase.
@@ -598,10 +598,10 @@ class AD9910:
         """Get the frequency tuning word, phase offset word,
         and amplitude scale factor.
 
-        .. seealso:: :meth:`get`
+        See also :meth:`AD9910.get`.
 
         :param profile: Profile number to get (0-7, default: 7)
-        :return: A tuple ``(ftw, pow, asf)``
+        :return: A tuple (FTW, POW, ASF)
         """
 
         # Read data
@@ -617,12 +617,12 @@ class AD9910:
                         profile: TInt32 = _DEFAULT_PROFILE_RAM,
                         nodwell_high: TInt32 = 0, zero_crossing: TInt32 = 0,
                         mode: TInt32 = 1):
-        """Set the RAM profile settings.
+        """Set the RAM profile settings. See also AD9910 datasheet.
 
-        :param start: Profile start address in RAM.
-        :param end: Profile end address in RAM (last address).
-        :param step: Profile time step in units of t_DDS, typically 4 ns
-            (default: 1).
+        :param start: Profile start address in RAM (10-bit).
+        :param end: Profile end address in RAM, inclusive (10-bit).
+        :param step: Profile time step, counted in DDS sample clock
+            cycles, typically 4 ns (16-bit, default: 1)
         :param profile: Profile index (0 to 7) (default: 0).
         :param nodwell_high: No-dwell high bit (default: 0,
             see AD9910 documentation).
@@ -850,7 +850,7 @@ class AD9910:
             ram_destination: TInt32 = -1) -> TFloat:
         """Set DDS data in SI units.
 
-        .. seealso:: :meth:`set_mu`
+        See also :meth:`AD9910.set_mu`.
 
         :param frequency: Frequency in Hz
         :param phase: Phase tuning word in turns
@@ -871,10 +871,10 @@ class AD9910:
             ) -> TTuple([TFloat, TFloat, TFloat]):
         """Get the frequency, phase, and amplitude.
 
-        .. seealso:: :meth:`get_mu`
+        See also :meth:`AD9910.get_mu`.
 
         :param profile: Profile number to get (0-7, default: 7)
-        :return: A tuple ``(frequency, phase, amplitude)``
+        :return: A tuple (frequency, phase, amplitude)
         """
 
         # Get values
@@ -887,11 +887,10 @@ class AD9910:
     def set_att_mu(self, att: TInt32):
         """Set digital step attenuator in machine units.
 
-        This method will write the attenuator settings of all four channels.
+        This method will write the attenuator settings of all four channels. See also
+        :meth:`CPLD.get_channel_att <artiq.coredevice.urukul.CPLD.set_att_mu>`.
 
-        .. seealso:: :meth:`artiq.coredevice.urukul.CPLD.set_att_mu`
-
-        :param att: Attenuation setting, 8 bit digital.
+        :param att: Attenuation setting, 8-bit digital.
         """
         self.cpld.set_att_mu(self.chip_select - 4, att)
 
@@ -899,9 +898,8 @@ class AD9910:
     def set_att(self, att: TFloat):
         """Set digital step attenuator in SI units.
 
-        This method will write the attenuator settings of all four channels.
-
-        .. seealso:: :meth:`artiq.coredevice.urukul.CPLD.set_att`
+        This method will write the attenuator settings of all four channels. See also 
+        :meth:`CPLD.get_channel_att <artiq.coredevice.urukul.CPLD.set_att>`.
 
         :param att: Attenuation in dB.
         """
@@ -909,19 +907,17 @@ class AD9910:
 
     @kernel
     def get_att_mu(self) -> TInt32:
-        """Get digital step attenuator value in machine units.
+        """Get digital step attenuator value in machine units. See also
+        :meth:`CPLD.get_channel_att <artiq.coredevice.urukul.CPLD.get_channel_att_mu>`.
 
-        .. seealso:: :meth:`artiq.coredevice.urukul.CPLD.get_channel_att_mu`
-
-        :return: Attenuation setting, 8 bit digital.
+        :return: Attenuation setting, 8-bit digital.
         """
         return self.cpld.get_channel_att_mu(self.chip_select - 4)
 
     @kernel
     def get_att(self) -> TFloat:
-        """Get digital step attenuator value in SI units.
-
-        .. seealso:: :meth:`artiq.coredevice.urukul.CPLD.get_channel_att`
+        """Get digital step attenuator value in SI units. See also 
+        :meth:`CPLD.get_channel_att <artiq.coredevice.urukul.CPLD.get_channel_att>`.
 
         :return: Attenuation in dB.
         """
@@ -943,16 +939,16 @@ class AD9910:
                  window: TInt32, 
                  en_sync_gen: TInt32 = 0):
         """Set the relevant parameters in the multi device synchronization
-        register. See the AD9910 datasheet for details. The SYNC clock
-        generator preset value is set to zero, and the SYNC_OUT generator is
+        register. See the AD9910 datasheet for details. The ``SYNC`` clock
+        generator preset value is set to zero, and the ``SYNC_OUT`` generator is
         disabled by default.
 
-        :param in_delay: SYNC_IN delay tap (0-31) in steps of ~75ps
-        :param window: Symmetric SYNC_IN validation window (0-15) in
+        :param in_delay: ``SYNC_IN`` delay tap (0-31) in steps of ~75ps
+        :param window: Symmetric ``SYNC_IN`` validation window (0-15) in
             steps of ~75ps for both hold and setup margin.
         :param en_sync_gen: Whether to enable the DDS-internal sync generator
-            (SYNC_OUT, cf. sync_sel == 1). Should be left off for the normal
-            use case, where the SYNC clock is supplied by the core device.
+            (``SYNC_OUT``, cf. ``sync_sel == 1``). Should be left off for the normal
+            use case, where the ``SYNC`` clock is supplied by the core device.
         """
         self.write32(_AD9910_REG_SYNC,
                      (window << 28) |  # SYNC S/H validation delay
@@ -965,9 +961,9 @@ class AD9910:
 
     @kernel
     def clear_smp_err(self):
-        """Clear the SMP_ERR flag and enables SMP_ERR validity monitoring.
+        """Clear the ``SMP_ERR`` flag and enables ``SMP_ERR`` validity monitoring.
 
-        Violations of the SYNC_IN sample and hold margins will result in
+        Violations of the ``SYNC_IN`` sample and hold margins will result in
         SMP_ERR being asserted. This then also activates the red LED on
         the respective Urukul channel.
 
@@ -982,9 +978,9 @@ class AD9910:
     @kernel
     def tune_sync_delay(self,
                         search_seed: TInt32 = 15) -> TTuple([TInt32, TInt32]):
-        """Find a stable SYNC_IN delay.
+        """Find a stable ``SYNC_IN`` delay.
 
-        This method first locates a valid SYNC_IN delay at zero validation
+        This method first locates a valid ``SYNC_IN`` delay at zero validation
         window size (setup/hold margin) by scanning around `search_seed`. It
         then looks for similar valid delays at successively larger validation
         window sizes until none can be found. It then decreases the validation
@@ -993,13 +989,13 @@ class AD9910:
 
         This method and :meth:`tune_io_update_delay` can be run in any order.
 
-        :param search_seed: Start value for valid SYNC_IN delay search.
+        :param search_seed: Start value for valid ``SYNC_IN`` delay search.
             Defaults to 15 (half range).
         :return: Tuple of optimal delay and window size.
         """
         if not self.cpld.sync_div:
             raise ValueError("parent cpld does not drive SYNC")
-        search_span = 31
+        search_span = 13
         # FIXME https://github.com/sinara-hw/Urukul/issues/16
         # should both be 2-4 once kasli sync_in jitter is identified
         min_window = 0
@@ -1040,16 +1036,16 @@ class AD9910:
     def measure_io_update_alignment(self, delay_start: TInt64,
                                     delay_stop: TInt64) -> TInt32:
         """Use the digital ramp generator to locate the alignment between
-        IO_UPDATE and SYNC_CLK.
+        ``IO_UPDATE`` and ``SYNC_CLK``.
 
         The ramp generator is set up to a linear frequency ramp
-        (dFTW/t_SYNC_CLK=1) and started at a coarse RTIO time stamp plus
-        `delay_start` and stopped at a coarse RTIO time stamp plus
-        `delay_stop`.
+        ``(dFTW/t_SYNC_CLK=1)`` and started at a coarse RTIO time stamp plus
+        ``delay_start`` and stopped at a coarse RTIO time stamp plus
+        ``delay_stop``.
 
-        :param delay_start: Start IO_UPDATE delay in machine units.
-        :param delay_stop: Stop IO_UPDATE delay in machine units.
-        :return: Odd/even SYNC_CLK cycle indicator.
+        :param delay_start: Start ``IO_UPDATE`` delay in machine units.
+        :param delay_stop: Stop ``IO_UPDATE`` delay in machine units.
+        :return: Odd/even ``SYNC_CLK`` cycle indicator.
         """
         # set up DRG
         self.set_cfr1(drg_load_lrr=1, drg_autoclear=1)
@@ -1081,19 +1077,19 @@ class AD9910:
 
     @kernel
     def tune_io_update_delay(self) -> TInt32:
-        """Find a stable IO_UPDATE delay alignment.
+        """Find a stable ``IO_UPDATE`` delay alignment.
 
-        Scan through increasing IO_UPDATE delays until a delay is found that
-        lets IO_UPDATE be registered in the next SYNC_CLK cycle. Return a
-        IO_UPDATE delay that is as far away from that SYNC_CLK edge
+        Scan through increasing ``IO_UPDATE`` delays until a delay is found that
+        lets ``IO_UPDATE`` be registered in the next ``SYNC_CLK`` cycle. Return a
+        ``IO_UPDATE`` delay that is as far away from that ``SYNC_CLK`` edge
         as possible.
 
-        This method assumes that the IO_UPDATE TTLOut device has one machine
+        This method assumes that the ``IO_UPDATE`` TTLOut device has one machine
         unit resolution (SERDES).
 
         This method and :meth:`tune_sync_delay` can be run in any order.
 
-        :return: Stable IO_UPDATE delay to be passed to the constructor
+        :return: Stable ``IO_UPDATE`` delay to be passed to the constructor
             :class:`AD9910` via the device database.
         """
         period = self.sysclk_per_mu * 4  # SYNC_CLK period

artiq/coredevice/ad9912.py

@@ -11,7 +11,7 @@ from artiq.coredevice import urukul
 
 class AD9912:
     """
-    AD9912 DDS channel on Urukul
+    AD9912 DDS channel on Urukul.
 
     This class supports a single DDS channel and exposes the DDS,
     the digital step attenuator, and the RF switch.
@@ -22,9 +22,9 @@ class AD9912:
     :param sw_device: Name of the RF switch device. The RF switch is a
         TTLOut channel available as the :attr:`sw` attribute of this instance.
     :param pll_n: DDS PLL multiplier. The DDS sample clock is
-        f_ref/clk_div*pll_n where f_ref is the reference frequency and clk_div
-        is the reference clock divider (both set in the parent Urukul CPLD
-        instance).
+        ``f_ref / clk_div * pll_n`` where ``f_ref`` is the reference frequency and 
+        ``clk_div`` is the reference clock divider (both set in the parent 
+        Urukul CPLD instance).
     :param pll_en: PLL enable bit, set to 0 to bypass PLL (default: 1).
         Note that when bypassing the PLL the red front panel LED may remain on.
     """
@@ -44,7 +44,11 @@ class AD9912:
         self.pll_en = pll_en
         self.pll_n = pll_n
         if pll_en:
-            sysclk = self.cpld.refclk / [1, 1, 2, 4][self.cpld.clk_div] * pll_n
+            refclk = self.cpld.refclk
+            if refclk < 11e6:
+                # use SYSCLK PLL Doubler
+                refclk = refclk * 2
+            sysclk = refclk / [1, 1, 2, 4][self.cpld.clk_div] * pll_n
         else:
             sysclk = self.cpld.refclk
         assert sysclk <= 1e9
@@ -97,7 +101,7 @@ class AD9912:
 
         Sets up SPI mode, confirms chip presence, powers down unused blocks,
         and configures the PLL. Does not wait for PLL lock. Uses the
-        IO_UPDATE signal multiple times.
+        ``IO_UPDATE`` signal multiple times.
         """
         # SPI mode
         self.write(AD9912_SER_CONF, 0x99, length=1)
@@ -115,7 +119,11 @@ class AD9912:
             self.write(AD9912_N_DIV, self.pll_n // 2 - 2, length=1)
             self.cpld.io_update.pulse(2 * us)
             # I_cp = 375 µA, VCO high range
-            self.write(AD9912_PLLCFG, 0b00000101, length=1)
+            if self.cpld.refclk < 11e6:
+                # enable SYSCLK PLL Doubler
+                self.write(AD9912_PLLCFG, 0b00001101, length=1)
+            else:
+                self.write(AD9912_PLLCFG, 0b00000101, length=1)
             self.cpld.io_update.pulse(2 * us)
         delay(1 * ms)
 
@@ -125,9 +133,9 @@ class AD9912:
 
         This method will write the attenuator settings of all four channels.
 
-        .. seealso:: :meth:`artiq.coredevice.urukul.CPLD.set_att_mu`
+        See also :meth:`~artiq.coredevice.urukul.CPLD.set_att_mu`.
 
-        :param att: Attenuation setting, 8 bit digital.
+        :param att: Attenuation setting, 8-bit digital.
         """
         self.cpld.set_att_mu(self.chip_select - 4, att)
 
@@ -137,7 +145,7 @@ class AD9912:
 
         This method will write the attenuator settings of all four channels.
 
-        .. seealso:: :meth:`artiq.coredevice.urukul.CPLD.set_att`
+        See also :meth:`~artiq.coredevice.urukul.CPLD.set_att`.
 
         :param att: Attenuation in dB. Higher values mean more attenuation.
         """
@@ -147,9 +155,9 @@ class AD9912:
     def get_att_mu(self) -> TInt32:
         """Get digital step attenuator value in machine units.
 
-        .. seealso:: :meth:`artiq.coredevice.urukul.CPLD.get_channel_att_mu`
+        See also :meth:`~artiq.coredevice.urukul.CPLD.get_channel_att_mu`.
 
-        :return: Attenuation setting, 8 bit digital.
+        :return: Attenuation setting, 8-bit digital.
         """
         return self.cpld.get_channel_att_mu(self.chip_select - 4)
 
@@ -157,7 +165,7 @@ class AD9912:
     def get_att(self) -> TFloat:
         """Get digital step attenuator value in SI units.
 
-        .. seealso:: :meth:`artiq.coredevice.urukul.CPLD.get_channel_att`
+        See also :meth:`~artiq.coredevice.urukul.CPLD.get_channel_att`.
 
         :return: Attenuation in dB.
         """
@@ -170,8 +178,8 @@ class AD9912:
         After the SPI transfer, the shared IO update pin is pulsed to
         activate the data.
 
-        :param ftw: Frequency tuning word: 48 bit unsigned.
-        :param pow_: Phase tuning word: 16 bit unsigned.
+        :param ftw: Frequency tuning word: 48-bit unsigned.
+        :param pow_: Phase tuning word: 16-bit unsigned.
         """
         # streaming transfer of FTW and POW
         self.bus.set_config_mu(urukul.SPI_CONFIG, 16,
@@ -189,9 +197,9 @@ class AD9912:
     def get_mu(self) -> TTuple([TInt64, TInt32]):
         """Get the frequency tuning word and phase offset word.
 
-        .. seealso:: :meth:`get`
+        See also :meth:`AD9912.get`.
 
-        :return: A tuple ``(ftw, pow)``.
+        :return: A tuple (FTW, POW).
         """
 
         # Read data
@@ -239,7 +247,7 @@ class AD9912:
     def set(self, frequency: TFloat, phase: TFloat = 0.0):
         """Set profile 0 data in SI units.
 
-        .. seealso:: :meth:`set_mu`
+        See also :meth:`AD9912.set_mu`.
 
         :param frequency: Frequency in Hz
         :param phase: Phase tuning word in turns
@@ -251,9 +259,9 @@ class AD9912:
     def get(self) -> TTuple([TFloat, TFloat]):
         """Get the frequency and phase.
 
-        .. seealso:: :meth:`get_mu`
+        See also :meth:`AD9912.get_mu`.
 
-        :return: A tuple ``(frequency, phase)``.
+        :return: A tuple (frequency, phase).
         """
 
         # Get values

artiq/coredevice/ad9914.py

@@ -49,7 +49,7 @@ class AD9914:
     The time cursor is not modified by any function in this class.
 
     Output event replacement is not supported and issuing commands at the same
-    time is an error.
+    time results in collision errors.
 
     :param sysclk: DDS system frequency. The DDS system clock must be a
         phase-locked multiple of the RTIO clock.
@@ -134,7 +134,7 @@ class AD9914:
         timing margin.
 
         :param sync_delay: integer from 0 to 0x3f that sets the value of
-            SYNC_OUT (bits 3-5) and SYNC_IN (bits 0-2) delay ADJ bits.
+            ``SYNC_OUT`` (bits 3-5) and ``SYNC_IN`` (bits 0-2) delay ADJ bits.
         """
         delay_mu(-self.init_sync_duration_mu)
         self.write(AD9914_GPIO,      (1 << self.channel) << 1)

artiq/coredevice/adf5356.py

@@ -84,10 +84,11 @@ class ADF5356:
 
         :param blind: Do not attempt to verify presence.
         """
+        self.sync()
         if not blind:
             # MUXOUT = VDD
             self.regs[4] = ADF5356_REG4_MUXOUT_UPDATE(self.regs[4], 1)
-            self.sync()
+            self.write(self.regs[4])
             delay(1000 * us)
             if not self.read_muxout():
                 raise ValueError("MUXOUT not high")
@@ -95,7 +96,7 @@ class ADF5356:
 
             # MUXOUT = DGND
             self.regs[4] = ADF5356_REG4_MUXOUT_UPDATE(self.regs[4], 2)
-            self.sync()
+            self.write(self.regs[4])
             delay(1000 * us)
             if self.read_muxout():
                 raise ValueError("MUXOUT not low")
@@ -103,8 +104,7 @@ class ADF5356:
 
             # MUXOUT = digital lock-detect
             self.regs[4] = ADF5356_REG4_MUXOUT_UPDATE(self.regs[4], 6)
-        else:
-            self.sync()
+            self.write(self.regs[4])
 
     @kernel
     def set_att(self, att):
@@ -112,7 +112,7 @@ class ADF5356:
 
         This method will write the attenuator settings of the channel.
 
-        .. seealso:: :meth:`artiq.coredevice.mirny.Mirny.set_att`
+        See also :meth:`Mirny.set_att<artiq.coredevice.mirny.Mirny.set_att>`.
 
         :param att: Attenuation in dB.
         """
@@ -122,7 +122,7 @@ class ADF5356:
     def set_att_mu(self, att):
         """Set digital step attenuator in machine units.
 
-        :param att: Attenuation setting, 8 bit digital.
+        :param att: Attenuation setting, 8-bit digital.
         """
         self.cpld.set_att_mu(self.channel, att)
 
@@ -531,14 +531,14 @@ class ADF5356:
     @portable
     def _compute_pfd_frequency(self, r, d, t) -> TInt64:
         """
-        Calculate the PFD frequency from the given reference path parameters
+        Calculate the PFD frequency from the given reference path parameters.
         """
         return int64(self.sysclk * ((1 + d) / (r * (1 + t))))
 
     @portable
     def _compute_reference_counter(self) -> TInt32:
         """
-        Determine the reference counter R that maximizes the PFD frequency
+        Determine the reference counter R that maximizes the PFD frequency.
         """
         d = ADF5356_REG4_R_DOUBLER_GET(self.regs[4])
         t = ADF5356_REG4_R_DIVIDER_GET(self.regs[4])
@@ -565,14 +565,15 @@ def calculate_pll(f_vco: TInt64, f_pfd: TInt64):
     """
     Calculate fractional-N PLL parameters such that
 
-    ``f_vco`` = ``f_pfd`` * (``n`` + (``frac1`` + ``frac2``/``mod2``) / ``mod1``)
+    ``f_vco = f_pfd * (n + (frac1 + frac2/mod2) / mod1)``
 
     where
-        ``mod1 = 2**24`` and ``mod2 <= 2**28``
+        
+    ``mod1 = 2**24`` and ``mod2 <= 2**28``
 
     :param f_vco: target VCO frequency
     :param f_pfd: PFD frequency
-    :return: ``(n, frac1, (frac2_msb, frac2_lsb), (mod2_msb, mod2_lsb))``
+    :return: (``n``, ``frac1``, ``(frac2_msb, frac2_lsb)``, ``(mod2_msb, mod2_lsb)``)
     """
     f_pfd = int64(f_pfd)
     f_vco = int64(f_vco)

artiq/coredevice/almazny.py

@@ -1,4 +1,5 @@
 from artiq.language.core import kernel, portable
+from artiq.language.units import us
 
 from numpy import int32
 
@@ -16,12 +17,12 @@ ALMAZNY_LEGACY_SPIT_WR = 32
 
 class AlmaznyLegacy:
     """
-    Almazny (High frequency mezzanine board for Mirny)
+    Almazny (High-frequency mezzanine board for Mirny)
 
     This applies to Almazny hardware v1.1 and earlier.
-    Use :class:`artiq.coredevice.almazny.AlmaznyChannel` for Almazny v1.2 and later.
+    Use :class:`~artiq.coredevice.almazny.AlmaznyChannel` for Almazny v1.2 and later.
 
-    :param host_mirny: Mirny device Almazny is connected to
+    :param host_mirny: :class:`~artiq.coredevice.mirny.Mirny` device Almazny is connected to
     """
 
     def __init__(self, dmgr, host_mirny):
@@ -117,20 +118,16 @@ class AlmaznyLegacy:
         )
         delay(100 * us)
 
-    @kernel
-    def _update_all_registers(self):
-        for i in range(4):
-            self._update_register(i)
-
 
 class AlmaznyChannel:
     """
-    One Almazny channel
+    Driver for one Almazny channel.
+
     Almazny is a mezzanine for the Quad PLL RF source Mirny that exposes and
     controls the frequency-doubled outputs.
     This driver requires Almazny hardware revision v1.2 or later
     and Mirny CPLD gateware v0.3 or later.
-    Use :class:`artiq.coredevice.almazny.AlmaznyLegacy` for Almazny hardware v1.1 and earlier.
+    Use :class:`~artiq.coredevice.almazny.AlmaznyLegacy` for Almazny hardware v1.1 and earlier.
 
     :param host_mirny: Mirny CPLD device name
     :param channel: channel index (0-3)

artiq/coredevice/cache.py

@@ -21,9 +21,9 @@ class CoreCache:
         """Extract a value from the core device cache.
         After a value is extracted, it cannot be replaced with another value using
         :meth:`put` until all kernel functions finish executing; attempting
-        to replace it will result in a :class:`artiq.coredevice.exceptions.CacheError`.
+        to replace it will result in a :class:`~artiq.coredevice.exceptions.CacheError`.
 
-        If the cache does not contain any value associated with ``key``, an empty list
+        If the cache does not contain any value associated with `key`, an empty list
         is returned.
 
         The value is not copied, so mutating it will change what's stored in the cache.

artiq/coredevice/comm_analyzer.py

@@ -2,15 +2,22 @@ from operator import itemgetter
 from collections import namedtuple
 from itertools import count
 from contextlib import contextmanager
+from sipyco import keepalive
+import asyncio
 from enum import Enum
 import struct
 import logging
 import socket
+import math
 
 
 logger = logging.getLogger(__name__)
 
 
+DEFAULT_REF_PERIOD = 1e-9
+ANALYZER_MAGIC = b"ARTIQ Analyzer Proxy\n"
+
+
 class MessageType(Enum):
     output = 0b00
     input = 0b01
@@ -34,6 +41,13 @@ class ExceptionType(Enum):
     i_overflow = 0b100001
 
 
+class WaveformType(Enum):
+    ANALOG = 0
+    BIT = 1
+    VECTOR = 2
+    LOG = 3
+
+
 def get_analyzer_dump(host, port=1382):
     sock = socket.create_connection((host, port))
     try:
@@ -104,6 +118,8 @@ def decode_dump(data):
     (sent_bytes, total_byte_count,
      error_occurred, log_channel, dds_onehot_sel) = parts
 
+    logger.debug("analyzer dump has length %d", sent_bytes)
+
     expected_len = sent_bytes + 15
     if expected_len != len(data):
         raise ValueError("analyzer dump has incorrect length "
@@ -115,15 +131,83 @@ def decode_dump(data):
     if total_byte_count > sent_bytes:
         logger.info("analyzer ring buffer has wrapped %d times",
                     total_byte_count//sent_bytes)
+    if sent_bytes == 0:
+        logger.warning("analyzer dump is empty")
 
     position = 15
     messages = []
     for _ in range(sent_bytes//32):
         messages.append(decode_message(data[position:position+32]))
         position += 32
+
+    if len(messages) == 1 and isinstance(messages[0], StoppedMessage):
+        logger.warning("analyzer dump is empty aside from stop message")
+
     return DecodedDump(log_channel, bool(dds_onehot_sel), messages)
 
 
+# simplified from sipyco broadcast Receiver
+class AnalyzerProxyReceiver:
+    def __init__(self, receive_cb, disconnect_cb=None):
+        self.receive_cb = receive_cb
+        self.disconnect_cb = disconnect_cb
+
+    async def connect(self, host, port):
+        self.reader, self.writer = \
+            await keepalive.async_open_connection(host, port)
+        try:
+            line = await self.reader.readline()
+            assert line == ANALYZER_MAGIC
+            self.receive_task = asyncio.create_task(self._receive_cr())
+        except:
+            self.writer.close()
+            del self.reader
+            del self.writer
+            raise
+
+    async def close(self):
+        self.disconnect_cb = None
+        try:
+            self.receive_task.cancel()
+            try:
+                await self.receive_task
+            except asyncio.CancelledError:
+                pass
+        finally:
+            self.writer.close()
+            del self.reader
+            del self.writer
+
+    async def _receive_cr(self):
+        try:
+            while True:
+                data = bytearray()
+                data.extend(await self.reader.read(1))
+                if len(data) == 0:
+                    # EOF reached, connection lost
+                    return
+                if data[0] == ord("E"):
+                    endian = '>'
+                elif data[0] == ord("e"):
+                    endian = '<'
+                else:
+                    raise ValueError
+                data.extend(await self.reader.readexactly(4))
+                payload_length = struct.unpack(endian + "I", data[1:5])[0]
+                if payload_length > 10 * 512 * 1024:
+                    # 10x buffer size of firmware
+                    raise ValueError
+
+                # The remaining header length is 11 bytes.
+                data.extend(await self.reader.readexactly(payload_length + 11))
+                self.receive_cb(data)
+        except Exception:
+            logger.error("analyzer receiver connection terminating with exception", exc_info=True)
+        finally:
+            if self.disconnect_cb is not None:
+                self.disconnect_cb()
+
+
 def vcd_codes():
     codechars = [chr(i) for i in range(33, 127)]
     for n in count():
@@ -150,38 +234,129 @@ class VCDChannel:
         integer_cast = struct.unpack(">Q", struct.pack(">d", x))[0]
         self.set_value("{:064b}".format(integer_cast))
 
+    def set_log(self, log_message):
+        value = ""
+        for c in log_message:
+            value += "{:08b}".format(ord(c))
+        self.set_value(value)
+
 
 class VCDManager:
     def __init__(self, fileobj):
         self.out = fileobj
         self.codes = vcd_codes()
         self.current_time = None
+        self.start_time = 0
 
     def set_timescale_ps(self, timescale):
         self.out.write("$timescale {}ps $end\n".format(round(timescale)))
 
-    def get_channel(self, name, width):
+    def get_channel(self, name, width, ty, precision=0, unit=""):
         code = next(self.codes)
         self.out.write("$var wire {width} {code} {name} $end\n"
                        .format(name=name, code=code, width=width))
         return VCDChannel(self.out, code)
 
     @contextmanager
-    def scope(self, name):
-        self.out.write("$scope module {} $end\n".format(name))
+    def scope(self, scope, name):
+        self.out.write("$scope module {}/{} $end\n".format(scope, name))
         yield
         self.out.write("$upscope $end\n")
 
     def set_time(self, time):
+        time -= self.start_time
         if time != self.current_time:
             self.out.write("#{}\n".format(time))
             self.current_time = time
 
+    def set_start_time(self, time):
+        self.start_time = time
+
+    def set_end_time(self, time):
+        pass
+
+
+class WaveformManager:
+    def __init__(self):
+        self.current_time = 0
+        self.start_time = 0
+        self.end_time = 0
+        self.channels = list()
+        self.current_scope = ""
+        self.trace = {"timescale": 1, "stopped_x": None, "logs": dict(), "data": dict()}
+
+    def set_timescale_ps(self, timescale):
+        self.trace["timescale"] = int(timescale)
+
+    def get_channel(self, name, width, ty, precision=0, unit=""):
+        if ty == WaveformType.LOG:
+            self.trace["logs"][self.current_scope + name] = (ty, width, precision, unit)
+        data = self.trace["data"][self.current_scope + name] = list()
+        channel = WaveformChannel(data, self.current_time)
+        self.channels.append(channel)
+        return channel
+
+    @contextmanager
+    def scope(self, scope, name):
+        old_scope = self.current_scope
+        self.current_scope = scope + "/"
+        yield
+        self.current_scope = old_scope
+
+    def set_time(self, time):
+        time -= self.start_time
+        for channel in self.channels:
+            channel.set_time(time)
+
+    def set_start_time(self, time):
+        self.start_time = time
+        if self.trace["stopped_x"] is not None:
+            self.trace["stopped_x"] = self.end_time - self.start_time
+
+    def set_end_time(self, time):
+        self.end_time = time
+        self.trace["stopped_x"] = self.end_time - self.start_time
+
+
+class WaveformChannel:
+    def __init__(self, data, current_time):
+        self.data = data
+        self.current_time = current_time
+
+    def set_value(self, value):
+        self.data.append((self.current_time, value))
+
+    def set_value_double(self, x):
+        self.data.append((self.current_time, x))
+
+    def set_time(self, time):
+        self.current_time = time
+
+    def set_log(self, log_message):
+        self.data.append((self.current_time, log_message))
+
+
+class ChannelSignatureManager:
+    def __init__(self):
+        self.current_scope = ""
+        self.channels = dict()
+
+    def get_channel(self, name, width, ty, precision=0, unit=""):
+        self.channels[self.current_scope + name] = (ty, width, precision, unit)
+        return None
+
+    @contextmanager
+    def scope(self, scope, name):
+        old_scope = self.current_scope
+        self.current_scope = scope + "/"
+        yield
+        self.current_scope = old_scope
+
 
 class TTLHandler:
-    def __init__(self, vcd_manager, name):
+    def __init__(self, manager, name):
         self.name = name
-        self.channel_value = vcd_manager.get_channel("ttl/" + name, 1)
+        self.channel_value = manager.get_channel("ttl/" + name, 1, ty=WaveformType.BIT)
         self.last_value = "X"
         self.oe = True
 
@@ -206,11 +381,12 @@ class TTLHandler:
 
 
 class TTLClockGenHandler:
-    def __init__(self, vcd_manager, name, ref_period):
+    def __init__(self, manager, name, ref_period):
         self.name = name
         self.ref_period = ref_period
-        self.channel_frequency = vcd_manager.get_channel(
-            "ttl_clkgen/" + name, 64)
+        precision = max(0, math.ceil(math.log10(2**24 * ref_period) + 6))
+        self.channel_frequency = manager.get_channel(
+            "ttl_clkgen/" + name, 64, ty=WaveformType.ANALOG, precision=precision, unit="MHz")
 
     def process_message(self, message):
         if isinstance(message, OutputMessage):
@@ -221,8 +397,8 @@ class TTLClockGenHandler:
 
 
 class DDSHandler:
-    def __init__(self, vcd_manager, onehot_sel, sysclk):
-        self.vcd_manager = vcd_manager
+    def __init__(self, manager, onehot_sel, sysclk):
+        self.manager = manager
         self.onehot_sel = onehot_sel
         self.sysclk = sysclk
 
@@ -231,11 +407,18 @@ class DDSHandler:
 
     def add_dds_channel(self, name, dds_channel_nr):
         dds_channel = dict()
-        with self.vcd_manager.scope("dds/{}".format(name)):
+        frequency_precision = max(0, math.ceil(math.log10(2**32 / self.sysclk) + 6))
+        phase_precision = max(0, math.ceil(math.log10(2**16)))
+        with self.manager.scope("dds", name):
             dds_channel["vcd_frequency"] = \
-                self.vcd_manager.get_channel(name + "/frequency", 64)
+                self.manager.get_channel(name + "/frequency", 64, 
+                                         ty=WaveformType.ANALOG, 
+                                         precision=frequency_precision,
+                                         unit="MHz")
             dds_channel["vcd_phase"] = \
-                self.vcd_manager.get_channel(name + "/phase", 64)
+                self.manager.get_channel(name + "/phase", 64, 
+                                         ty=WaveformType.ANALOG,
+                                         precision=phase_precision)
         dds_channel["ftw"] = [None, None]
         dds_channel["pow"] = None
         self.dds_channels[dds_channel_nr] = dds_channel
@@ -285,10 +468,10 @@ class DDSHandler:
 
 
 class WishboneHandler:
-    def __init__(self, vcd_manager, name, read_bit):
+    def __init__(self, manager, name, read_bit):
         self._reads = []
         self._read_bit = read_bit
-        self.stb = vcd_manager.get_channel("{}/{}".format(name, "stb"), 1)
+        self.stb = manager.get_channel(name + "/stb", 1, ty=WaveformType.BIT)
 
     def process_message(self, message):
         self.stb.set_value("1")
@@ -318,16 +501,17 @@ class WishboneHandler:
 
 
 class SPIMasterHandler(WishboneHandler):
-    def __init__(self, vcd_manager, name):
+    def __init__(self, manager, name):
         self.channels = {}
-        with vcd_manager.scope("spi/{}".format(name)):
-            super().__init__(vcd_manager, name, read_bit=0b100)
+        self.scope = "spi"
+        with manager.scope("spi", name):
+            super().__init__(manager, name, read_bit=0b100)
             for reg_name, reg_width in [
                     ("config", 32), ("chip_select", 16),
                     ("write_length", 8), ("read_length", 8),
                     ("write", 32), ("read", 32)]:
-                self.channels[reg_name] = vcd_manager.get_channel(
-                        "{}/{}".format(name, reg_name), reg_width)
+                self.channels[reg_name] = manager.get_channel(
+                    "{}/{}".format(name, reg_name), reg_width, ty=WaveformType.VECTOR)
 
     def process_write(self, address, data):
         if address == 0:
@@ -352,11 +536,12 @@ class SPIMasterHandler(WishboneHandler):
 
 
 class SPIMaster2Handler(WishboneHandler):
-    def __init__(self, vcd_manager, name):
+    def __init__(self, manager, name):
         self._reads = []
         self.channels = {}
-        with vcd_manager.scope("spi2/{}".format(name)):
-            self.stb = vcd_manager.get_channel("{}/{}".format(name, "stb"), 1)
+        self.scope = "spi2"
+        with manager.scope("spi2", name):
+            self.stb = manager.get_channel(name + "/stb", 1, ty=WaveformType.BIT)
             for reg_name, reg_width in [
                     ("flags", 8),
                     ("length", 5),
@@ -364,8 +549,8 @@ class SPIMaster2Handler(WishboneHandler):
                     ("chip_select", 8),
                     ("write", 32),
                     ("read", 32)]:
-                self.channels[reg_name] = vcd_manager.get_channel(
-                        "{}/{}".format(name, reg_name), reg_width)
+                self.channels[reg_name] = manager.get_channel(
+                    "{}/{}".format(name, reg_name), reg_width, ty=WaveformType.VECTOR)
 
     def process_message(self, message):
         self.stb.set_value("1")
@@ -413,11 +598,12 @@ def _extract_log_chars(data):
 
 
 class LogHandler:
-    def __init__(self, vcd_manager, vcd_log_channels):
-        self.vcd_channels = dict()
-        for name, maxlength in vcd_log_channels.items():
-            self.vcd_channels[name] = vcd_manager.get_channel("log/" + name,
-                                                              maxlength*8)
+    def __init__(self, manager, log_channels):
+        self.channels = dict()
+        for name, maxlength in log_channels.items():
+            self.channels[name] = manager.get_channel("logs/" + name,
+                                                      maxlength * 8,
+                                                      ty=WaveformType.LOG)
         self.current_entry = ""
 
     def process_message(self, message):
@@ -425,15 +611,12 @@ class LogHandler:
             self.current_entry += _extract_log_chars(message.data)
             if len(self.current_entry) > 1 and self.current_entry[-1] == "\x1D":
                 channel_name, log_message = self.current_entry[:-1].split("\x1E", maxsplit=1)
-                vcd_value = ""
-                for c in log_message:
-                    vcd_value += "{:08b}".format(ord(c))
-                self.vcd_channels[channel_name].set_value(vcd_value)
+                self.channels[channel_name].set_log(log_message)
                 self.current_entry = ""
 
 
-def get_vcd_log_channels(log_channel, messages):
-    vcd_log_channels = dict()
+def get_log_channels(log_channel, messages):
+    log_channels = dict()
     log_entry = ""
     for message in messages:
         if (isinstance(message, OutputMessage)
@@ -442,13 +625,13 @@ def get_vcd_log_channels(log_channel, messages):
             if len(log_entry) > 1 and log_entry[-1] == "\x1D":
                 channel_name, log_message = log_entry[:-1].split("\x1E", maxsplit=1)
                 l = len(log_message)
-                if channel_name in vcd_log_channels:
-                    if vcd_log_channels[channel_name] < l:
-                        vcd_log_channels[channel_name] = l
+                if channel_name in log_channels:
+                    if log_channels[channel_name] < l:
+                        log_channels[channel_name] = l
                 else:
-                    vcd_log_channels[channel_name] = l
+                    log_channels[channel_name] = l
                 log_entry = ""
-    return vcd_log_channels
+    return log_channels
 
 
 def get_single_device_argument(devices, module, cls, argument):
@@ -475,7 +658,7 @@ def get_dds_sysclk(devices):
                                       ("AD9914",), "sysclk")
 
 
-def create_channel_handlers(vcd_manager, devices, ref_period,
+def create_channel_handlers(manager, devices, ref_period,
                             dds_sysclk, dds_onehot_sel):
     channel_handlers = dict()
     for name, desc in sorted(devices.items(), key=itemgetter(0)):
@@ -483,11 +666,11 @@ def create_channel_handlers(vcd_manager, devices, ref_period,
             if (desc["module"] == "artiq.coredevice.ttl"
                     and desc["class"] in {"TTLOut", "TTLInOut"}):
                 channel = desc["arguments"]["channel"]
-                channel_handlers[channel] = TTLHandler(vcd_manager, name)
+                channel_handlers[channel] = TTLHandler(manager, name)
             if (desc["module"] == "artiq.coredevice.ttl"
                     and desc["class"] == "TTLClockGen"):
                 channel = desc["arguments"]["channel"]
-                channel_handlers[channel] = TTLClockGenHandler(vcd_manager, name, ref_period)
+                channel_handlers[channel] = TTLClockGenHandler(manager, name, ref_period)
             if (desc["module"] == "artiq.coredevice.ad9914"
                     and desc["class"] == "AD9914"):
                 dds_bus_channel = desc["arguments"]["bus_channel"]
@@ -495,37 +678,60 @@ def create_channel_handlers(vcd_manager, devices, ref_period,
                 if dds_bus_channel in channel_handlers:
                     dds_handler = channel_handlers[dds_bus_channel]
                 else:
-                    dds_handler = DDSHandler(vcd_manager, dds_onehot_sel, dds_sysclk)
+                    dds_handler = DDSHandler(manager, dds_onehot_sel, dds_sysclk)
                     channel_handlers[dds_bus_channel] = dds_handler
                 dds_handler.add_dds_channel(name, dds_channel)
             if (desc["module"] == "artiq.coredevice.spi2" and
                     desc["class"] == "SPIMaster"):
                 channel = desc["arguments"]["channel"]
                 channel_handlers[channel] = SPIMaster2Handler(
-                        vcd_manager, name)
+                        manager, name)
     return channel_handlers
 
 
+def get_channel_list(devices):
+    manager = ChannelSignatureManager()
+    create_channel_handlers(manager, devices, 1e-9, 3e9, False)
+    ref_period = get_ref_period(devices)
+    if ref_period is None:
+        ref_period = DEFAULT_REF_PERIOD
+    precision = max(0, math.ceil(math.log10(1 / ref_period) - 6))
+    manager.get_channel("rtio_slack", 64, ty=WaveformType.ANALOG, precision=precision, unit="us")
+    return manager.channels
+
+
 def get_message_time(message):
     return getattr(message, "timestamp", message.rtio_counter)
 
 
 def decoded_dump_to_vcd(fileobj, devices, dump, uniform_interval=False):
     vcd_manager = VCDManager(fileobj)
+    decoded_dump_to_target(vcd_manager, devices, dump, uniform_interval)
+
+
+def decoded_dump_to_waveform_data(devices, dump, uniform_interval=False):
+    manager = WaveformManager()
+    decoded_dump_to_target(manager, devices, dump, uniform_interval)
+    return manager.trace
+
+
+def decoded_dump_to_target(manager, devices, dump, uniform_interval):
     ref_period = get_ref_period(devices)
 
-    if ref_period is not None:
-        if not uniform_interval:
-            vcd_manager.set_timescale_ps(ref_period*1e12)
-    else:
+    if ref_period is None:
         logger.warning("unable to determine core device ref_period")
-        ref_period = 1e-9  # guess
+        ref_period = DEFAULT_REF_PERIOD
+    if not uniform_interval:
+        manager.set_timescale_ps(ref_period*1e12)
     dds_sysclk = get_dds_sysclk(devices)
     if dds_sysclk is None:
         logger.warning("unable to determine DDS sysclk")
         dds_sysclk = 3e9  # guess
 
     if isinstance(dump.messages[-1], StoppedMessage):
+        m = dump.messages[-1]
+        end_time = get_message_time(m)
+        manager.set_end_time(end_time)
         messages = dump.messages[:-1]
     else:
         logger.warning("StoppedMessage missing")
@@ -533,38 +739,39 @@ def decoded_dump_to_vcd(fileobj, devices, dump, uniform_interval=False):
     messages = sorted(messages, key=get_message_time)
 
     channel_handlers = create_channel_handlers(
-        vcd_manager, devices, ref_period,
+        manager, devices, ref_period,
         dds_sysclk, dump.dds_onehot_sel)
-    vcd_log_channels = get_vcd_log_channels(dump.log_channel, messages)
+    log_channels = get_log_channels(dump.log_channel, messages)
     channel_handlers[dump.log_channel] = LogHandler(
-        vcd_manager, vcd_log_channels)
+        manager, log_channels)
     if uniform_interval:
         # RTIO event timestamp in machine units
-        timestamp = vcd_manager.get_channel("timestamp", 64)
+        timestamp = manager.get_channel("timestamp", 64, ty=WaveformType.VECTOR)
         # RTIO time interval between this and the next timed event
         # in SI seconds
-        interval = vcd_manager.get_channel("interval", 64)
-    slack = vcd_manager.get_channel("rtio_slack", 64)
+        interval = manager.get_channel("interval", 64, ty=WaveformType.ANALOG)
+    slack = manager.get_channel("rtio_slack", 64, ty=WaveformType.ANALOG)
 
-    vcd_manager.set_time(0)
+    manager.set_time(0)
     start_time = 0
     for m in messages:
         start_time = get_message_time(m)
         if start_time:
             break
-
-    t0 = 0
+    if not uniform_interval:
+        manager.set_start_time(start_time)
+    t0 = start_time
     for i, message in enumerate(messages):
         if message.channel in channel_handlers:
-            t = get_message_time(message) - start_time
+            t = get_message_time(message)
             if t >= 0:
                 if uniform_interval:
                     interval.set_value_double((t - t0)*ref_period)
-                    vcd_manager.set_time(i)
+                    manager.set_time(i)
                     timestamp.set_value("{:064b}".format(t))
                     t0 = t
                 else:
-                    vcd_manager.set_time(t)
+                    manager.set_time(t)
             channel_handlers[message.channel].process_message(message)
             if isinstance(message, OutputMessage):
                 slack.set_value_double(

artiq/coredevice/comm_kernel.py

@@ -465,12 +465,12 @@ class CommKernel:
             self._write_bool(value)
         elif tag == "i":
             check(isinstance(value, (int, numpy.int32)) and
-                  (-2**31 <= value < 2**31),
+                  (-2**31 <= value <= 2**31-1),
                   lambda: "32-bit int")
             self._write_int32(value)
         elif tag == "I":
             check(isinstance(value, (int, numpy.int32, numpy.int64)) and
-                  (-2**63 <= value < 2**63),
+                  (-2**63 <= value <= 2**63-1),
                   lambda: "64-bit int")
             self._write_int64(value)
         elif tag == "f":
@@ -479,8 +479,8 @@ class CommKernel:
             self._write_float64(value)
         elif tag == "F":
             check(isinstance(value, Fraction) and
-                  (-2**63 <= value.numerator < 2**63) and
-                  (-2**63 <= value.denominator < 2**63),
+                  (-2**63 <= value.numerator <= 2**63-1) and
+                  (-2**63 <= value.denominator <= 2**63-1),
                   lambda: "64-bit Fraction")
             self._write_int64(value.numerator)
             self._write_int64(value.denominator)

artiq/coredevice/comm_moninj.py

@@ -94,9 +94,7 @@ class CommMonInj:
                     self.injection_status_cb(channel, override, value)
                 else:
                     raise ValueError("Unknown packet type", ty)
-        except asyncio.CancelledError:
-            raise
-        except:
+        except Exception:
             logger.error("Moninj connection terminating with exception", exc_info=True)
         finally:
             if self.disconnect_cb is not None:

artiq/coredevice/core.py

@@ -73,8 +73,8 @@ class Core:
         On platforms that use clock multiplication and SERDES-based PHYs,
         this is the period after multiplication. For example, with a RTIO core
         clocked at 125MHz and a SERDES multiplication factor of 8, the
-        reference period is 1ns.
-        The time machine unit is equal to this period.
+        reference period is ``1 ns``.
+        The machine time unit (``mu``) is equal to this period.
     :param ref_multiplier: ratio between the RTIO fine timestamp frequency
         and the RTIO coarse timestamp frequency (e.g. SERDES multiplication
         factor).
@@ -116,17 +116,21 @@ class Core:
             self.trigger_analyzer_proxy()
 
     def close(self):
+        """Disconnect core device and close sockets. 
+        """
         self.comm.close()
 
     def compile(self, function, args, kwargs, set_result=None,
                 attribute_writeback=True, print_as_rpc=True,
-                target=None, destination=0, subkernel_arg_types=[]):
+                target=None, destination=0, subkernel_arg_types=[],
+                old_embedding_map=None):
         try:
             engine = _DiagnosticEngine(all_errors_are_fatal=True)
 
             stitcher = Stitcher(engine=engine, core=self, dmgr=self.dmgr,
                                 print_as_rpc=print_as_rpc,
-                                destination=destination, subkernel_arg_types=subkernel_arg_types)
+                                destination=destination, subkernel_arg_types=subkernel_arg_types,
+                                old_embedding_map=old_embedding_map)
             stitcher.stitch_call(function, args, kwargs, set_result)
             stitcher.finalize()
 
@@ -165,7 +169,7 @@ class Core:
         self._run_compiled(kernel_library, embedding_map, symbolizer, demangler)
         return result
 
-    def compile_subkernel(self, sid, subkernel_fn, embedding_map, args, subkernel_arg_types):
+    def compile_subkernel(self, sid, subkernel_fn, embedding_map, args, subkernel_arg_types, subkernels):
         # pass self to subkernels (if applicable)
         # assuming the first argument is self
         subkernel_args = getfullargspec(subkernel_fn.artiq_embedded.function)
@@ -179,17 +183,49 @@ class Core:
         object_map, kernel_library, _, _, _ = \
             self.compile(subkernel_fn, self_arg, {}, attribute_writeback=False,
                         print_as_rpc=False, target=target, destination=destination, 
-                        subkernel_arg_types=subkernel_arg_types.get(sid, []))
-        if object_map.has_rpc_or_subkernel():
-            raise ValueError("Subkernel must not use RPC or subkernels in other destinations")
-        return destination, kernel_library
+                        subkernel_arg_types=subkernel_arg_types.get(sid, []),
+                        old_embedding_map=embedding_map)
+        if object_map.has_rpc():
+            raise ValueError("Subkernel must not use RPC")
+        return destination, kernel_library, object_map
 
     def compile_and_upload_subkernels(self, embedding_map, args, subkernel_arg_types):
-        for sid, subkernel_fn in embedding_map.subkernels().items():
-            destination, kernel_library = \
-                self.compile_subkernel(sid, subkernel_fn, embedding_map,
-                                       args, subkernel_arg_types)
-            self.comm.upload_subkernel(kernel_library, sid, destination)
+        subkernels = embedding_map.subkernels()
+        subkernels_compiled = []
+        while True:
+            new_subkernels = {}
+            for sid, subkernel_fn in subkernels.items():
+                if sid in subkernels_compiled:
+                    continue
+                destination, kernel_library, embedding_map = \
+                    self.compile_subkernel(sid, subkernel_fn, embedding_map,
+                                        args, subkernel_arg_types, subkernels)
+                self.comm.upload_subkernel(kernel_library, sid, destination)
+                new_subkernels.update(embedding_map.subkernels())
+                subkernels_compiled.append(sid)
+            if new_subkernels == subkernels:
+                break
+            subkernels.update(new_subkernels)
+        # check for messages without a send/recv pair
+        unpaired_messages = embedding_map.subkernel_messages_unpaired()
+        if unpaired_messages:
+            for unpaired_message in unpaired_messages:
+                engine = _DiagnosticEngine(all_errors_are_fatal=False)
+                # errors are non-fatal in order to display
+                # all unpaired message errors before raising an excption
+                if unpaired_message.send_loc is None:
+                    diag = diagnostic.Diagnostic("error",
+                        "subkernel message '{name}' only has a receiver but no sender",
+                        {"name": unpaired_message.name},
+                        unpaired_message.recv_loc)
+                else:
+                    diag = diagnostic.Diagnostic("error",
+                        "subkernel message '{name}' only has a sender but no receiver",
+                        {"name": unpaired_message.name},
+                        unpaired_message.send_loc)
+                engine.process(diag)
+            raise ValueError("Found subkernel message(s) without a full send/recv pair")
+
 
     def precompile(self, function, *args, **kwargs):
         """Precompile a kernel and return a callable that executes it on the core device
@@ -207,8 +243,8 @@ class Core:
         Similarly, modified values are not written back, and explicit RPC should be used
         to modify host objects.
         Carefully review the source code of drivers calls used in precompiled kernels, as
-        they may rely on host object attributes being transfered between kernel calls.
-        Examples include code used to control DDS phase, and Urukul RF switch control
+        they may rely on host object attributes being transferred between kernel calls.
+        Examples include code used to control DDS phase and Urukul RF switch control
         via the CPLD register.
 
         The return value of the callable is the return value of the kernel, if any.
@@ -239,7 +275,7 @@ class Core:
     @portable
     def seconds_to_mu(self, seconds):
         """Convert seconds to the corresponding number of machine units
-        (RTIO cycles).
+        (fine RTIO cycles).
 
         :param seconds: time (in seconds) to convert.
         """
@@ -247,7 +283,7 @@ class Core:
 
     @portable
     def mu_to_seconds(self, mu):
-        """Convert machine units (RTIO cycles) to seconds.
+        """Convert machine units (fine RTIO cycles) to seconds.
 
         :param mu: cycle count to convert.
         """
@@ -262,7 +298,7 @@ class Core:
         for the actual value of the hardware register at the instant when
         execution resumes in the caller.
 
-        For a more detailed description of these concepts, see :doc:`/rtio`.
+        For a more detailed description of these concepts, see :doc:`rtio`.
         """
         return rtio_get_counter()
 
@@ -281,7 +317,7 @@ class Core:
     def get_rtio_destination_status(self, destination):
         """Returns whether the specified RTIO destination is up.
         This is particularly useful in startup kernels to delay
-        startup until certain DRTIO destinations are up."""
+        startup until certain DRTIO destinations are available."""
         return rtio_get_destination_status(destination)
 
     @kernel
@@ -309,7 +345,7 @@ class Core:
 
         Returns only after the dump has been retrieved from the device.
 
-        Raises IOError if no analyzer proxy has been configured, or if the
+        Raises :exc:`IOError` if no analyzer proxy has been configured, or if the
         analyzer proxy fails. In the latter case, more details would be
         available in the proxy log.
         """
@@ -319,6 +355,4 @@ class Core:
         if self.analyzer_proxy is None:
             raise IOError("No analyzer proxy configured")
         else:
-            success = self.analyzer_proxy.trigger()
-            if not success:
-                raise IOError("Analyzer proxy reported failure")
+            self.analyzer_proxy.trigger()

artiq/coredevice/coredevice_generic.schema.json

@@ -49,6 +49,10 @@
             "default": 125e6,
             "description": "RTIO frequency"
         },
+        "enable_wrpll": {
+            "type": "boolean",
+            "default": false
+        },
         "core_addr": {
             "type": "string",
             "format": "ipv4",
@@ -308,8 +312,7 @@
                         "clk_div": {
                             "type": "integer",
                             "minimum": 0,
-                            "maximum": 3,
-                            "default": 0
+                            "maximum": 3
                         },
                         "pll_n": {
                             "type": "integer"
@@ -631,6 +634,10 @@
                         },
                         "drtio_destination": {
                             "type": "integer"
+                        },
+                        "hw_rev": {
+                            "type": "string",
+                            "enum": ["v1.0", "v1.1"]
                         }
                     },
                     "required": ["ports"]

artiq/coredevice/dma.py

@@ -76,11 +76,11 @@ class CoreDMA:
 
     @kernel
     def record(self, name, enable_ddma=False):
-        """Returns a context manager that will record a DMA trace called ``name``.
+        """Returns a context manager that will record a DMA trace called `name`.
         Any previously recorded trace with the same name is overwritten.
         The trace will persist across kernel switches.
 
-        In DRTIO context, distributed DMA can be toggled with ``enable_ddma``.
+        In DRTIO context, distributed DMA can be toggled with `enable_ddma`.
         Enabling it allows running DMA on satellites, rather than sending all
         events from the master.
 
@@ -116,7 +116,7 @@ class CoreDMA:
     def playback_handle(self, handle):
         """Replays a handle obtained with :meth:`get_handle`. Using this function
         is much faster than :meth:`playback` for replaying a set of traces repeatedly,
-        but incurs the overhead of managing the handles onto the programmer."""
+        but offloads the overhead of managing the handles onto the programmer."""
         (epoch, advance_mu, ptr, uses_ddma) = handle
         if self.epoch != epoch:
             raise DMAError("Invalid handle")

artiq/coredevice/edge_counter.py

@@ -1,9 +1,9 @@
 """Driver for RTIO-enabled TTL edge counter.
 
-Like for the TTL input PHYs, sensitivity can be configured over RTIO
-(``gate_rising()``, etc.). In contrast to the former, however, the count is
+As for the TTL input PHYs, sensitivity can be configured over RTIO
+(:meth:`gate_rising<EdgeCounter.gate_rising>`, etc.). In contrast to the former, however, the count is
 accumulated in gateware, and only a single input event is generated at the end
-of each gate period::
+of each gate period: ::
 
     with parallel:
         doppler_cool()
@@ -17,12 +17,12 @@ of each gate period::
     print("Readout counts:", self.pmt_counter.fetch_count())
 
 For applications where the timestamps of the individual input events are not
-required, this has two advantages over ``TTLInOut.count()`` beyond raw
-throughput. First, it is easy to count events during multiple separate periods
-without blocking to read back counts in between, as illustrated in the above
-example. Secondly, as each count total only takes up a single input event, it
-is much easier to acquire counts on several channels in parallel without
-risking input FIFO overflows::
+required, this has two advantages over :meth:`TTLInOut.count<artiq.coredevice.ttl.TTLInOut.count>` 
+beyond raw throughput. First, it is easy to count events during multiple separate 
+periods without blocking to read back counts in between, as illustrated in the 
+above example. Secondly, as each count total only takes up a single input event, 
+it is much easier to acquire counts on several channels in parallel without
+risking input RTIO overflows: ::
 
     # Using the TTLInOut driver, pmt_1 input events are only processed
     # after pmt_0 is done counting. To avoid RTIOOverflows, a round-robin
@@ -35,8 +35,6 @@ risking input FIFO overflows::
     counts_0 = self.pmt_0.count(now_mu()) # blocks
     counts_1 = self.pmt_1.count(now_mu())
 
-    #
-
     # Using gateware counters, only a single input event each is
     # generated, greatly reducing the load on the input FIFOs:
 
@@ -47,7 +45,7 @@ risking input FIFO overflows::
     counts_0 = self.pmt_0_counter.fetch_count() # blocks
     counts_1 = self.pmt_1_counter.fetch_count()
 
-See :mod:`artiq.gateware.rtio.phy.edge_counter` and
+See the sources of :mod:`artiq.gateware.rtio.phy.edge_counter` and
 :meth:`artiq.gateware.eem.DIO.add_std` for the gateware components.
 """
 
@@ -176,13 +174,13 @@ class EdgeCounter:
         """Emit an RTIO event at the current timeline position to set the
         gateware configuration.
 
-        For most use cases, the `gate_*` wrappers will be more convenient.
+        For most use cases, the ``gate_*`` wrappers will be more convenient.
 
         :param count_rising: Whether to count rising signal edges.
         :param count_falling: Whether to count falling signal edges.
-        :param send_count_event: If `True`, an input event with the current
+        :param send_count_event: If ``True``, an input event with the current
             counter value is generated on the next clock cycle (once).
-        :param reset_to_zero: If `True`, the counter value is reset to zero on
+        :param reset_to_zero: If ``True``, the counter value is reset to zero on
             the next clock cycle (once).
         """
         config = int32(0)

artiq/coredevice/exceptions.py

@@ -137,7 +137,7 @@ class RTIOOverflow(Exception):
 
 
 class RTIODestinationUnreachable(Exception):
-    """Raised with a RTIO operation could not be completed due to a DRTIO link
+    """Raised when a RTIO operation could not be completed due to a DRTIO link
     being down.
     """
     artiq_builtin = True

artiq/coredevice/fastino.py

@@ -1,4 +1,4 @@
-"""RTIO driver for the Fastino 32channel, 16 bit, 2.5 MS/s per channel,
+"""RTIO driver for the Fastino 32-channel, 16-bit, 2.5 MS/s per channel
 streaming DAC.
 """
 from numpy import int32, int64
@@ -17,22 +17,22 @@ class Fastino:
     to the DAC RTIO addresses, if a channel is not "held" by setting its bit
     using :meth:`set_hold`, the next frame will contain the update. For the
     DACs held, the update is triggered explicitly by setting the corresponding
-    bit using :meth:`set_update`. Update is self-clearing. This enables atomic
+    bit using :meth:`update`. Update is self-clearing. This enables atomic
     DAC updates synchronized to a frame edge.
 
-    The `log2_width=0` RTIO layout uses one DAC channel per RTIO address and a
-    dense RTIO address space. The RTIO words are narrow (32 bit) and
+    The ``log2_width=0`` RTIO layout uses one DAC channel per RTIO address and a
+    dense RTIO address space. The RTIO words are narrow (32-bit) and
     few-channel updates are efficient. There is the least amount of DAC state
     tracking in kernels, at the cost of more DMA and RTIO data.
     The setting here and in the RTIO PHY (gateware) must match.
 
-    Other `log2_width` (up to `log2_width=5`) settings pack multiple
+    Other ``log2_width`` (up to ``log2_width=5``) settings pack multiple
     (in powers of two) DAC channels into one group and into one RTIO write.
-    The RTIO data width increases accordingly. The `log2_width`
+    The RTIO data width increases accordingly. The ``log2_width``
     LSBs of the RTIO address for a DAC channel write must be zero and the
-    address space is sparse. For `log2_width=5` the RTIO data is 512 bit wide.
+    address space is sparse. For ``log2_width=5`` the RTIO data is 512-bit wide.
 
-    If `log2_width` is zero, the :meth:`set_dac`/:meth:`set_dac_mu` interface
+    If ``log2_width`` is zero, the :meth:`set_dac`/:meth:`set_dac_mu` interface
     must be used. If non-zero, the :meth:`set_group`/:meth:`set_group_mu`
     interface must be used.
 
@@ -63,15 +63,16 @@ class Fastino:
             * disables RESET, DAC_CLR, enables AFE_PWR
             * clears error counters, enables error counting
             * turns LEDs off
-            * clears `hold` and `continuous` on all channels
+            * clears ``hold`` and ``continuous`` on all channels
             * clear and resets interpolators to unit rate change on all
               channels
 
         It does not change set channel voltages and does not reset the PLLs or clock
         domains.
 
-        Note: On Fastino gateware before v0.2 this may lead to 0 voltage being emitted
-        transiently.
+        .. warning::
+            On Fastino gateware before v0.2 this may lead to 0 voltage being emitted
+            transiently.
         """
         self.set_cfg(reset=0, afe_power_down=0, dac_clr=0, clr_err=1)
         delay_mu(self.t_frame)
@@ -115,7 +116,7 @@ class Fastino:
         """Write DAC data in machine units.
 
         :param dac: DAC channel to write to (0-31).
-        :param data: DAC word to write, 16 bit unsigned integer, in machine
+        :param data: DAC word to write, 16-bit unsigned integer, in machine
             units.
         """
         self.write(dac, data)
@@ -124,9 +125,9 @@ class Fastino:
     def set_group_mu(self, dac: TInt32, data: TList(TInt32)):
         """Write a group of DAC channels in machine units.
 
-        :param dac: First channel in DAC channel group (0-31). The `log2_width`
+        :param dac: First channel in DAC channel group (0-31). The ``log2_width``
             LSBs must be zero.
-        :param data: List of DAC data pairs (2x16 bit unsigned) to write,
+        :param data: List of DAC data pairs (2x16-bit unsigned) to write,
             in machine units. Data exceeding group size is ignored.
             If the list length is less than group size, the remaining
             DAC channels within the group are cleared to 0 (machine units).
@@ -137,10 +138,10 @@ class Fastino:
 
     @portable
     def voltage_to_mu(self, voltage):
-        """Convert SI Volts to DAC machine units.
+        """Convert SI volts to DAC machine units.
 
-        :param voltage: Voltage in SI Volts.
-        :return: DAC data word in machine units, 16 bit integer.
+        :param voltage: Voltage in SI volts.
+        :return: DAC data word in machine units, 16-bit integer.
         """
         data = int32(round((0x8000/10.)*voltage)) + int32(0x8000)
         if data < 0 or data > 0xffff:
@@ -149,9 +150,9 @@ class Fastino:
 
     @portable
     def voltage_group_to_mu(self, voltage, data):
-        """Convert SI Volts to packed DAC channel group machine units.
+        """Convert SI volts to packed DAC channel group machine units.
 
-        :param voltage: List of SI Volt voltages.
+        :param voltage: List of SI volt voltages.
         :param data: List of DAC channel data pairs to write to.
             Half the length of `voltage`.
         """
@@ -185,7 +186,7 @@ class Fastino:
     def update(self, update):
         """Schedule channels for update.
 
-        :param update: Bit mask of channels to update (32 bit).
+        :param update: Bit mask of channels to update (32-bit).
         """
         self.write(0x20, update)
 
@@ -193,7 +194,7 @@ class Fastino:
     def set_hold(self, hold):
         """Set channels to manual update.
 
-        :param hold: Bit mask of channels to hold (32 bit).
+        :param hold: Bit mask of channels to hold (32-bit).
         """
         self.write(0x21, hold)
 
@@ -214,9 +215,9 @@ class Fastino:
 
     @kernel
     def set_leds(self, leds):
-        """Set the green user-defined LEDs
+        """Set the green user-defined LEDs.
 
-        :param leds: LED status, 8 bit integer each bit corresponding to one
+        :param leds: LED status, 8-bit integer each bit corresponding to one
             green LED.
         """
         self.write(0x23, leds)
@@ -245,16 +246,16 @@ class Fastino:
     def stage_cic(self, rate) -> TInt32:
         """Compute and stage interpolator configuration.
 
-        This method approximates the desired interpolation rate using a 10 bit
-        floating point representation (6 bit mantissa, 4 bit exponent) and
+        This method approximates the desired interpolation rate using a 10-bit
+        floating point representation (6-bit mantissa, 4-bit exponent) and
         then determines an optimal interpolation gain compensation exponent
         to avoid clipping. Gains for rates that are powers of two are accurately
         compensated. Other rates lead to overall less than unity gain (but more
         than 0.5 gain).
 
-        The overall gain including gain compensation is
-        `actual_rate**order/2**ceil(log2(actual_rate**order))`
-        where `order = 3`.
+        The overall gain including gain compensation is ``actual_rate ** order / 
+        2 ** ceil(log2(actual_rate ** order))``
+        where ``order = 3``.
 
         Returns the actual interpolation rate.
         """
@@ -293,7 +294,7 @@ class Fastino:
         their output is supposed to be constant.
 
         This method resets and settles the affected interpolators. There will be
-        no output updates for the next `order = 3` input samples.
+        no output updates for the next ``order = 3`` input samples.
         Affected channels will only accept one input sample per input sample
         period. This method synchronizes the input sample period to the current
         frame on the affected channels.

artiq/coredevice/grabber.py

@@ -2,7 +2,7 @@ from numpy import int32, int64
 
 from artiq.language.core import *
 from artiq.language.types import *
-from artiq.coredevice.rtio import rtio_output, rtio_input_data
+from artiq.coredevice.rtio import rtio_output, rtio_input_timestamped_data
 
 
 class OutOfSyncException(Exception):
@@ -11,6 +11,11 @@ class OutOfSyncException(Exception):
     pass
 
 
+class GrabberTimeoutException(Exception):
+    """Raised when a timeout occurs while attempting to read Grabber RTIO input events."""
+    pass
+
+
 class Grabber:
     """Driver for the Grabber camera interface."""
     kernel_invariants = {"core", "channel_base", "sentinel"}
@@ -82,10 +87,10 @@ class Grabber:
         self.gate_roi(0)
 
     @kernel
-    def input_mu(self, data):
+    def input_mu(self, data, timeout_mu=-1):
         """
         Retrieves the accumulated values for one frame from the ROI engines.
-        Blocks until values are available.
+        Blocks until values are available or timeout is reached.
 
         The input list must be a list of integers of the same length as there
         are enabled ROI engines. This method replaces the elements of the
@@ -95,15 +100,26 @@ class Grabber:
         If the number of elements in the list does not match the number of
         ROI engines that produced output, an exception will be raised during
         this call or the next.
+        
+        If the timeout is reached before data is available, the exception
+        :exc:`GrabberTimeoutException` is raised.
+
+        :param timeout_mu: Timestamp at which a timeout will occur. Set to -1
+                           (default) to disable timeout. 
         """
         channel = self.channel_base + 1
 
-        sentinel = rtio_input_data(channel)
+        timestamp, sentinel = rtio_input_timestamped_data(timeout_mu, channel)
+        if timestamp == -1:
+            raise GrabberTimeoutException("Timeout before Grabber frame available")
         if sentinel != self.sentinel:
             raise OutOfSyncException
 
         for i in range(len(data)):
-            roi_output = rtio_input_data(channel)
+            timestamp, roi_output = rtio_input_timestamped_data(timeout_mu, channel)
             if roi_output == self.sentinel:
                 raise OutOfSyncException
+            if timestamp == -1:
+                raise GrabberTimeoutException(
+                    "Timeout retrieving ROIs (attempting to read more ROIs than enabled?)")
             data[i] = roi_output

artiq/coredevice/i2c.py

@@ -43,7 +43,7 @@ def i2c_poll(busno, busaddr):
     """Poll I2C device at address.
 
     :param busno: I2C bus number
-    :param busaddr: 8 bit I2C device address (LSB=0)
+    :param busaddr: 8-bit I2C device address (LSB=0)
     :returns: True if the poll was ACKed
     """
     i2c_start(busno)
@@ -57,7 +57,7 @@ def i2c_write_byte(busno, busaddr, data, ack=True):
     """Write one byte to a device.
 
     :param busno: I2C bus number
-    :param busaddr: 8 bit I2C device address (LSB=0)
+    :param busaddr: 8-bit I2C device address (LSB=0)
     :param data: Data byte to be written
     :param nack: Allow NACK
     """
@@ -76,7 +76,7 @@ def i2c_read_byte(busno, busaddr):
     """Read one byte from a device.
 
     :param busno: I2C bus number
-    :param busaddr: 8 bit I2C device address (LSB=0)
+    :param busaddr: 8-bit I2C device address (LSB=0)
     :returns: Byte read
     """
     i2c_start(busno)
@@ -95,10 +95,10 @@ def i2c_write_many(busno, busaddr, addr, data, ack_last=True):
     """Transfer multiple bytes to a device.
 
     :param busno: I2c bus number
-    :param busaddr: 8 bit I2C device address (LSB=0)
-    :param addr: 8 bit data address
+    :param busaddr: 8-bit I2C device address (LSB=0)
+    :param addr: 8-bit data address
     :param data: Data bytes to be written
-    :param ack_last: Expect I2C ACK of the last byte written. If `False`,
+    :param ack_last: Expect I2C ACK of the last byte written. If ``False``,
         the last byte may be NACKed (e.g. EEPROM full page writes).
     """
     n = len(data)
@@ -121,8 +121,8 @@ def i2c_read_many(busno, busaddr, addr, data):
     """Transfer multiple bytes from a device.
 
     :param busno: I2c bus number
-    :param busaddr: 8 bit I2C device address (LSB=0)
-    :param addr: 8 bit data address
+    :param busaddr: 8-bit I2C device address (LSB=0)
+    :param addr: 8-bit data address
     :param data: List of integers to be filled with the data read.
         One entry ber byte.
     """
@@ -147,7 +147,7 @@ class I2CSwitch:
 
     PCA954X (or other) type detection is done by the CPU during I2C init.
 
-    I2C transactions not real-time, and are performed by the CPU without
+    I2C transactions are not real-time, and are performed by the CPU without
     involving RTIO.
 
     On the KC705, this chip is used for selecting the I2C buses on the two FMC
@@ -176,7 +176,7 @@ class I2CSwitch:
 class TCA6424A:
     """Driver for the TCA6424A I2C I/O expander.
 
-    I2C transactions not real-time, and are performed by the CPU without
+    I2C transactions are not real-time, and are performed by the CPU without
     involving RTIO.
 
     On the NIST QC2 hardware, this chip is used for switching the directions
@@ -212,7 +212,7 @@ class TCA6424A:
 class PCF8574A:
     """Driver for the PCF8574 I2C remote 8-bit I/O expander.
 
-    I2C transactions not real-time, and are performed by the CPU without
+    I2C transactions are not real-time, and are performed by the CPU without
     involving RTIO.
     """
     def __init__(self, dmgr, busno=0, address=0x7c, core_device="core"):

artiq/coredevice/kasli_i2c.py

@@ -25,14 +25,14 @@ port_mapping = {
 
 
 class KasliEEPROM:
-    def __init__(self, dmgr, port, busno=0,
+    def __init__(self, dmgr, port, address=0xa0, busno=0,
             core_device="core", sw0_device="i2c_switch0", sw1_device="i2c_switch1"):
         self.core = dmgr.get(core_device)
         self.sw0 = dmgr.get(sw0_device)
         self.sw1 = dmgr.get(sw1_device)
         self.busno = busno
         self.port = port_mapping[port]
-        self.address = 0xa0  # i2c 8 bit
+        self.address = address  # i2c 8 bit
 
     @kernel
     def select(self):

artiq/coredevice/mirny.py

@@ -1,4 +1,4 @@
-"""RTIO driver for Mirny (4 channel GHz PLLs)
+"""RTIO driver for Mirny (4-channel GHz PLLs)
 """
 
 from artiq.language.core import kernel, delay, portable
@@ -82,7 +82,7 @@ class Mirny:
 
     @kernel
     def read_reg(self, addr):
-        """Read a register"""
+        """Read a register."""
         self.bus.set_config_mu(
             SPI_CONFIG | spi.SPI_INPUT | spi.SPI_END, 24, SPIT_RD, SPI_CS
         )
@@ -91,7 +91,7 @@ class Mirny:
 
     @kernel
     def write_reg(self, addr, data):
-        """Write a register"""
+        """Write a register."""
         self.bus.set_config_mu(SPI_CONFIG | spi.SPI_END, 24, SPIT_WR, SPI_CS)
         self.bus.write((addr << 25) | WE | ((data & 0xFFFF) << 8))
 
@@ -101,9 +101,9 @@ class Mirny:
         Initialize and detect Mirny.
 
         Select the clock source based the board's hardware revision.
-        Raise ValueError if the board's hardware revision is not supported.
+        Raise :exc:`ValueError` if the board's hardware revision is not supported.
 
-        :param blind: Verify presence and protocol compatibility. Raise ValueError on failure.
+        :param blind: Verify presence and protocol compatibility. Raise :exc:`ValueError` on failure.
         """
         reg0 = self.read_reg(0)
         self.hw_rev = reg0 & 0x3
@@ -138,7 +138,7 @@ class Mirny:
     def set_att_mu(self, channel, att):
         """Set digital step attenuator in machine units.
 
-        :param att: Attenuation setting, 8 bit digital.
+        :param att: Attenuation setting, 8-bit digital.
         """
         self.bus.set_config_mu(SPI_CONFIG | spi.SPI_END, 16, SPIT_WR, SPI_CS)
         self.bus.write(((channel | 8) << 25) | (att << 16))
@@ -149,7 +149,7 @@ class Mirny:
 
         This method will write the attenuator settings of the selected channel.
 
-        .. seealso:: :meth:`set_att_mu`
+        See also :meth:`Mirny.set_att_mu`.
 
         :param channel: Attenuator channel (0-3).
         :param att: Attenuation setting in dB. Higher value is more
@@ -160,7 +160,7 @@ class Mirny:
 
     @kernel
     def write_ext(self, addr, length, data, ext_div=SPIT_WR):
-        """Perform SPI write to a prefixed address"""
+        """Perform SPI write to a prefixed address."""
         self.bus.set_config_mu(SPI_CONFIG, 8, SPIT_WR, SPI_CS)
         self.bus.write(addr << 25)
         self.bus.set_config_mu(SPI_CONFIG | spi.SPI_END, length, ext_div, SPI_CS)

artiq/coredevice/novogorny.py

@@ -16,31 +16,31 @@ SPI_CS_SR = 2
 
 @portable
 def adc_ctrl(channel=1, softspan=0b111, valid=1):
-    """Build a LTC2335-16 control word"""
+    """Build a LTC2335-16 control word."""
     return (valid << 7) | (channel << 3) | softspan
 
 
 @portable
 def adc_softspan(data):
-    """Return the softspan configuration index from a result packet"""
+    """Return the softspan configuration index from a result packet."""
     return data & 0x7
 
 
 @portable
 def adc_channel(data):
-    """Return the channel index from a result packet"""
+    """Return the channel index from a result packet."""
     return (data >> 3) & 0x7
 
 
 @portable
 def adc_data(data):
-    """Return the ADC value from a result packet"""
+    """Return the ADC value from a result packet."""
     return (data >> 8) & 0xffff
 
 
 @portable
 def adc_value(data, v_ref=5.):
-    """Convert a ADC result packet to SI units (Volt)"""
+    """Convert a ADC result packet to SI units (volts)."""
     softspan = adc_softspan(data)
     data = adc_data(data)
     g = 625
@@ -107,7 +107,7 @@ class Novogorny:
     def configure(self, data):
         """Set up the ADC sequencer.
 
-        :param data: List of 8 bit control words to write into the sequencer
+        :param data: List of 8-bit control words to write into the sequencer
             table.
         """
         if len(data) > 1:
@@ -137,12 +137,10 @@ class Novogorny:
 
     @kernel
     def sample(self, next_ctrl=0):
-        """Acquire a sample
-
-        .. seealso:: :meth:`sample_mu`
+        """Acquire a sample. See also :meth:`Novogorny.sample_mu`. 
 
         :param next_ctrl: ADC control word for the next sample
-        :return: The ADC result packet (Volt)
+        :return: The ADC result packet (volts)
         """
         return adc_value(self.sample_mu(), self.v_ref)
 
@@ -151,7 +149,7 @@ class Novogorny:
         """Acquire a burst of samples.
 
         If the burst is too long and the sample rate too high, there will be
-        RTIO input overflows.
+        :exc:RTIOOverflow exceptions.
 
         High sample rates lead to gain errors since the impedance between the
         instrumentation amplifier and the ADC is high.

artiq/coredevice/phaser.py

@@ -85,7 +85,7 @@ SERVO_T_CYCLE = (32+12+192+24+4)*ns  # Must match gateware ADC parameters
 class Phaser:
     """Phaser 4-channel, 16-bit, 1 GS/s DAC coredevice driver.
 
-    Phaser contains a 4 channel, 1 GS/s DAC chip with integrated upconversion,
+    Phaser contains a 4-channel, 1 GS/s DAC chip with integrated upconversion,
     quadrature modulation compensation and interpolation features.
 
     The coredevice RTIO PHY and the Phaser gateware come in different modes
@@ -109,9 +109,9 @@ class Phaser:
     **Base mode**
 
     The coredevice produces 2 IQ (in-phase and quadrature) data streams with 25
-    MS/s and 14 bit per quadrature. Each data stream supports 5 independent
-    numerically controlled IQ oscillators (NCOs, DDSs with 32 bit frequency, 16
-    bit phase, 15 bit amplitude, and phase accumulator clear functionality)
+    MS/s and 14 bits per quadrature. Each data stream supports 5 independent
+    numerically controlled IQ oscillators (NCOs, DDSs with 32-bit frequency, 
+    16-bit phase, 15-bit amplitude, and phase accumulator clear functionality)
     added together. See :class:`PhaserChannel` and :class:`PhaserOscillator`.
 
     Together with a data clock, framing marker, a checksum and metadata for
@@ -119,30 +119,28 @@ class Phaser:
     FastLink via a single EEM connector from coredevice to Phaser.
 
     On Phaser in the FPGA the data streams are buffered and interpolated
-    from 25 MS/s to 500 MS/s 16 bit followed by a 500 MS/s digital upconverter
+    from 25 MS/s to 500 MS/s 16-bit followed by a 500 MS/s digital upconverter
     with adjustable frequency and phase. The interpolation passband is 20 MHz
     wide, passband ripple is less than 1e-3 amplitude, stopband attenuation
     is better than 75 dB at offsets > 15 MHz and better than 90 dB at offsets
     > 30 MHz.
 
-    The four 16 bit 500 MS/s DAC data streams are sent via a 32 bit parallel
+    The four 16-bit 500 MS/s DAC data streams are sent via a 32-bit parallel
     LVDS bus operating at 1 Gb/s per pin pair and processed in the DAC (Texas
     Instruments DAC34H84). On the DAC 2x interpolation, sinx/x compensation,
     quadrature modulator compensation, fine and coarse mixing as well as group
     delay capabilities are available. If desired, these features my be
-    configured via the `dac` dictionary.
+    configured via the ``dac`` dictionary.
 
     The latency/group delay from the RTIO events setting
     :class:`PhaserOscillator` or :class:`PhaserChannel` DUC parameters all the
     way to the DAC outputs is deterministic. This enables deterministic
     absolute phase with respect to other RTIO input and output events
-    (see `get_next_frame_mu()`).
+    (see :meth:`get_next_frame_mu()`).
 
     **Miqro mode**
 
-    See :class:`Miqro`
-
-    Here the DAC operates in 4x interpolation.
+    See :class:`Miqro`. Here the DAC operates in 4x interpolation.
 
     **Analog flow**
 
@@ -171,7 +169,7 @@ class Phaser:
     and Q datastreams from the DUC by the IIR output. The IIR state is updated at
     the 3.788 MHz ADC sampling rate.
 
-    Each channel IIR features 4 profiles, each consisting of the [b0, b1, a1] filter
+    Each channel IIR features 4 profiles, each consisting of the ``[b0, b1, a1]`` filter
     coefficients as well as an output offset. The coefficients and offset can be
     set for each profile individually and the profiles each have their own ``y0``,
     ``y1`` output registers (the ``x0``, ``x1`` inputs are shared). To avoid
@@ -185,25 +183,25 @@ class Phaser:
     still ingests samples and updates its input ``x0`` and ``x1`` registers, but
     does not update the ``y0``, ``y1`` output registers.
 
-    After power-up the servo is disabled, in profile 0, with coefficients [0, 0, 0]
+    After power-up the servo is disabled, in profile 0, with coefficients ``[0, 0, 0]``
     and hold is enabled. If older gateware without ther servo is loaded onto the
     Phaser FPGA, the device simply behaves as if the servo is disabled and none of
     the servo functions have any effect.
 
     .. note:: Various register settings of the DAC and the quadrature
-        upconverters are available to be modified through the `dac`, `trf0`,
-        `trf1` dictionaries. These can be set through the device database
-        (`device_db.py`). The settings are frozen during instantiation of the
-        class and applied during `init()`. See the :class:`DAC34H84` and
-        :class:`TRF372017` source for details.
+        upconverters are available to be modified through the ``dac``, ``trf0``,
+        ``trf1`` dictionaries. These can be set through the device database
+        (``device_db.py``). The settings are frozen during instantiation of the
+        class and applied during ``init()``. See the :class:`dac34H84` and
+        :class:`trf372017` source for details.
 
     .. note:: To establish deterministic latency between RTIO time base and DAC
-        output, the DAC FIFO read pointer value (`fifo_offset`) must be
-        fixed. If `tune_fifo_offset=True` (the default) a value with maximum
+        output, the DAC FIFO read pointer value (``fifo_offset``) must be
+        fixed. If `tune_fifo_offset` = ``True`` (the default) a value with maximum
         margin is determined automatically by `dac_tune_fifo_offset` each time
-        `init()` is called. This value should be used for the `fifo_offset` key
-        of the `dac` settings of Phaser in `device_db.py` and automatic
-        tuning should be disabled by `tune_fifo_offset=False`.
+        :meth:`init` is called. This value should be used for the ``fifo_offset`` key
+        of the ``dac`` settings of Phaser in ``device_db.py`` and automatic
+        tuning should be disabled by `tune_fifo_offset` = ``False```.
 
     :param channel: Base RTIO channel number
     :param core_device: Core device name (default: "core")
@@ -219,9 +217,9 @@ class Phaser:
     :param trf1: Channel 1 TRF372017 quadrature upconverter settings as a
         dictionary.
 
-    Attributes:
+    **Attributes:**
 
-    * :attr:`channel`: List of two :class:`PhaserChannel`
+    * :attr:`channel`: List of two instances of :class:`PhaserChannel`
         To access oscillators, digital upconverters, PLL/VCO analog
         quadrature upconverters and attenuators.
     """
@@ -463,8 +461,8 @@ class Phaser:
     def write8(self, addr, data):
         """Write data to FPGA register.
 
-        :param addr: Address to write to (7 bit)
-        :param data: Data to write (8 bit)
+        :param addr: Address to write to (7-bit)
+        :param data: Data to write (8-bit)
         """
         rtio_output((self.channel_base << 8) | (addr & 0x7f) | 0x80, data)
         delay_mu(int64(self.t_frame))
@@ -473,8 +471,8 @@ class Phaser:
     def read8(self, addr) -> TInt32:
         """Read from FPGA register.
 
-        :param addr: Address to read from (7 bit)
-        :return: Data read (8 bit)
+        :param addr: Address to read from (7-bit)
+        :return: Data read (8-bit)
         """
         rtio_output((self.channel_base << 8) | (addr & 0x7f), 0)
         response = rtio_input_data(self.channel_base)
@@ -482,13 +480,13 @@ class Phaser:
 
     @kernel
     def write16(self, addr, data: TInt32):
-        """Write 16 bit to a sequence of FPGA registers."""
+        """Write 16 bits to a sequence of FPGA registers."""
         self.write8(addr, data >> 8)
         self.write8(addr + 1, data)
 
     @kernel
     def write32(self, addr, data: TInt32):
-        """Write 32 bit to a sequence of FPGA registers."""
+        """Write 32 bits to a sequence of FPGA registers."""
         for offset in range(4):
             byte = data >> 24
             self.write8(addr + offset, byte)
@@ -496,7 +494,7 @@ class Phaser:
 
     @kernel
     def read32(self, addr) -> TInt32:
-        """Read 32 bit from a sequence of FPGA registers."""
+        """Read 32 bits from a sequence of FPGA registers."""
         data = 0
         for offset in range(4):
             data <<= 8
@@ -508,15 +506,15 @@ class Phaser:
     def set_leds(self, leds):
         """Set the front panel LEDs.
 
-        :param leds: LED settings (6 bit)
+        :param leds: LED settings (6-bit)
         """
         self.write8(PHASER_ADDR_LED, leds)
 
     @kernel
     def set_fan_mu(self, pwm):
-        """Set the fan duty cycle.
+        """Set the fan duty cycle in machine units.
 
-        :param pwm: Duty cycle in machine units (8 bit)
+        :param pwm: Duty cycle in machine units (8-bit)
         """
         self.write8(PHASER_ADDR_FAN, pwm)
 
@@ -581,10 +579,10 @@ class Phaser:
 
     @kernel
     def measure_frame_timestamp(self):
-        """Measure the timestamp of an arbitrary frame and store it in `self.frame_tstamp`.
+        """Measure the timestamp of an arbitrary frame and store it in ``self.frame_tstamp``.
 
         To be used as reference for aligning updates to the FastLink frames.
-        See `get_next_frame_mu()`.
+        See :meth:`get_next_frame_mu()`.
         """
         rtio_output(self.channel_base << 8, 0)  # read any register
         self.frame_tstamp = rtio_input_timestamp(now_mu() + 4 * self.t_frame, self.channel_base)
@@ -592,10 +590,10 @@ class Phaser:
 
     @kernel
     def get_next_frame_mu(self):
-        """Return the timestamp of the frame strictly after `now_mu()`.
+        """Return the timestamp of the frame strictly after :meth:`~artiq.language.core.now_mu()`.
 
         Register updates (DUC, DAC, TRF, etc.) scheduled at this timestamp and multiples
-        of `self.t_frame` later will have deterministic latency to output.
+        of ``self.t_frame`` later will have deterministic latency to output.
         """
         n = int64((now_mu() - self.frame_tstamp) / self.t_frame)
         return self.frame_tstamp + (n + 1) * self.t_frame
@@ -658,7 +656,7 @@ class Phaser:
 
     @kernel
     def dac_write(self, addr, data):
-        """Write 16 bit to a DAC register.
+        """Write 16 bits to a DAC register.
 
         :param addr: Register address
         :param data: Register data to write
@@ -708,16 +706,16 @@ class Phaser:
     def dac_sync(self):
         """Trigger DAC synchronisation for both output channels.
 
-        The DAC sif_sync is de-asserts, then asserted. The synchronisation is
+        The DAC ``sif_sync`` is de-asserted, then asserted. The synchronisation is
         triggered on assertion.
 
         By default, the fine-mixer (NCO) and QMC are synchronised. This
         includes applying the latest register settings.
 
-        The synchronisation sources may be configured through the `syncsel_x`
-        fields in the `dac` configuration dictionary (see `__init__()`).
+        The synchronisation sources may be configured through the ``syncsel_x``
+        fields in the ``dac`` configuration dictionary (see :class:`Phaser`).
 
-        .. note:: Synchronising the NCO clears the phase-accumulator
+        .. note:: Synchronising the NCO clears the phase-accumulator.
         """
         config1f = self.dac_read(0x1f)
         delay(.4*ms)
@@ -726,11 +724,11 @@ class Phaser:
 
     @kernel
     def set_dac_cmix(self, fs_8_step):
-        """Set the DAC coarse mixer frequency for both channels
+        """Set the DAC coarse mixer frequency for both channels.
 
         Use of the coarse mixer requires the DAC mixer to be enabled. The mixer
-        can be configured via the `dac` configuration dictionary (see
-        `__init__()`).
+        can be configured via the ``dac`` configuration dictionary (see
+        :class:`Phaser`).
 
         The selected coarse mixer frequency becomes active without explicit
         synchronisation.
@@ -763,8 +761,8 @@ class Phaser:
     def dac_iotest(self, pattern) -> TInt32:
         """Performs a DAC IO test according to the datasheet.
 
-        :param pattern: List of four int32 containing the pattern
-        :return: Bit error mask (16 bits)
+        :param pattern: List of four int32s containing the pattern
+        :return: Bit error mask (16-bit)
         """
         if len(pattern) != 4:
             raise ValueError("pattern length out of bounds")
@@ -803,9 +801,9 @@ class Phaser:
 
     @kernel
     def dac_tune_fifo_offset(self):
-        """Scan through `fifo_offset` and configure midpoint setting.
+        """Scan through ``fifo_offset`` and configure midpoint setting.
 
-        :return: Optimal `fifo_offset` setting with maximum margin to write
+        :return: Optimal ``fifo_offset`` setting with maximum margin to write
             pointer.
         """
         # expect two or three error free offsets:
@@ -865,7 +863,7 @@ class PhaserChannel:
 
     Attributes:
 
-    * :attr:`oscillator`: List of five :class:`PhaserOscillator`.
+    * :attr:`oscillator`: List of five instances of :class:`PhaserOscillator`.
     * :attr:`miqro`: A :class:`Miqro`.
 
     .. note:: The amplitude sum of the oscillators must be less than one to
@@ -879,7 +877,7 @@ class PhaserChannel:
         changes in oscillator parameters, the overshoot can lead to clipping
         or overflow after the interpolation. Either band-limit any changes
         in the oscillator parameters or back off the amplitude sufficiently.
-        Miqro is not affected by this. But both the oscillators and Miqro can
+        Miqro is not affected by this, but both the oscillators and Miqro can
         be affected by intrinsic overshoot of the interpolator on the DAC.
     """
     kernel_invariants = {"index", "phaser", "trf_mmap"}
@@ -899,7 +897,7 @@ class PhaserChannel:
         The data is split accross multiple registers and thus the data
         is only valid if constant.
 
-        :return: DAC data as 32 bit IQ. I/DACA/DACC in the 16 LSB,
+        :return: DAC data as 32-bit IQ. I/DACA/DACC in the 16 LSB,
             Q/DACB/DACD in the 16 MSB
         """
         return self.phaser.read32(PHASER_ADDR_DAC0_DATA + (self.index << 4))
@@ -908,7 +906,7 @@ class PhaserChannel:
     def set_dac_test(self, data: TInt32):
         """Set the DAC test data.
 
-        :param data: 32 bit IQ test data, I/DACA/DACC in the 16 LSB,
+        :param data: 32-bit IQ test data, I/DACA/DACC in the 16 LSB,
             Q/DACB/DACD in the 16 MSB
         """
         self.phaser.write32(PHASER_ADDR_DAC0_TEST + (self.index << 4), data)
@@ -930,7 +928,7 @@ class PhaserChannel:
     def set_duc_frequency_mu(self, ftw):
         """Set the DUC frequency.
 
-        :param ftw: DUC frequency tuning word (32 bit)
+        :param ftw: DUC frequency tuning word (32-bit)
         """
         self.phaser.write32(PHASER_ADDR_DUC0_F + (self.index << 4), ftw)
 
@@ -948,7 +946,7 @@ class PhaserChannel:
     def set_duc_phase_mu(self, pow):
         """Set the DUC phase offset.
 
-        :param pow: DUC phase offset word (16 bit)
+        :param pow: DUC phase offset word (16-bit)
         """
         addr = PHASER_ADDR_DUC0_P + (self.index << 4)
         self.phaser.write8(addr, pow >> 8)
@@ -970,10 +968,10 @@ class PhaserChannel:
         This method stages the new NCO frequency, but does not apply it.
 
         Use of the DAC-NCO requires the DAC mixer and NCO to be enabled. These
-        can be configured via the `dac` configuration dictionary (see
-        `__init__()`).
+        can be configured via the ``dac`` configuration dictionary (see 
+        :class:`Phaser`).
 
-        :param ftw: NCO frequency tuning word (32 bit)
+        :param ftw: NCO frequency tuning word (32-bit)
         """
         self.phaser.dac_write(0x15 + (self.index << 1), ftw >> 16)
         self.phaser.dac_write(0x14 + (self.index << 1), ftw)
@@ -985,8 +983,8 @@ class PhaserChannel:
         This method stages the new NCO frequency, but does not apply it.
 
         Use of the DAC-NCO requires the DAC mixer and NCO to be enabled. These
-        can be configured via the `dac` configuration dictionary (see
-        `__init__()`).
+        can be configured via the ``dac`` configuration dictionary (see
+        :class:`Phaser`).
 
         :param frequency: NCO frequency in Hz (passband from -400 MHz
             to 400 MHz, wrapping around at +- 500 MHz)
@@ -1001,14 +999,13 @@ class PhaserChannel:
         By default, the new NCO phase applies on completion of the SPI
         transfer. This also causes a staged NCO frequency to be applied.
         Different triggers for applying NCO settings may be configured through
-        the `syncsel_mixerxx` fields in the `dac` configuration dictionary (see
-        `__init__()`).
+        the ``syncsel_mixerxx`` fields in the ``dac`` configuration dictionary (see
+        :class:`Phaser`).
 
         Use of the DAC-NCO requires the DAC mixer and NCO to be enabled. These
-        can be configured via the `dac` configuration dictionary (see
-        `__init__()`).
+        can be configured via the ``dac`` configuration dictionary.
 
-        :param pow: NCO phase offset word (16 bit)
+        :param pow: NCO phase offset word (16-bit)
         """
         self.phaser.dac_write(0x12 + self.index, pow)
 
@@ -1019,12 +1016,11 @@ class PhaserChannel:
         By default, the new NCO phase applies on completion of the SPI
         transfer. This also causes a staged NCO frequency to be applied.
         Different triggers for applying NCO settings may be configured through
-        the `syncsel_mixerxx` fields in the `dac` configuration dictionary (see
-        `__init__()`).
+        the ``syncsel_mixerxx`` fields in the ``dac`` configuration dictionary (see
+        :class:`Phaser`).
 
         Use of the DAC-NCO requires the DAC mixer and NCO to be enabled. These
-        can be configured via the `dac` configuration dictionary (see
-        `__init__()`).
+        can be configured via the ``dac`` configuration dictionary.
 
         :param phase: NCO phase in turns
         """
@@ -1035,7 +1031,7 @@ class PhaserChannel:
     def set_att_mu(self, data):
         """Set channel attenuation.
 
-        :param data: Attenuator data in machine units (8 bit)
+        :param data: Attenuator data in machine units (8-bit)
         """
         div = 34  # 30 ns min period
         t_xfer = self.phaser.core.seconds_to_mu((8 + 1)*div*4*ns)
@@ -1082,7 +1078,7 @@ class PhaserChannel:
     def trf_write(self, data, readback=False):
         """Write 32 bits to quadrature upconverter register.
 
-        :param data: Register data (32 bit) containing encoded address
+        :param data: Register data (32-bit) containing encoded address
         :param readback: Whether to return the read back MISO data
         """
         div = 34  # 50 ns min period
@@ -1114,7 +1110,7 @@ class PhaserChannel:
 
         :param addr: Register address to read (0 to 7)
         :param cnt_mux_sel: Report VCO counter min or max frequency
-        :return: Register data (32 bit)
+        :return: Register data (32-bit)
         """
         self.trf_write(0x80000008 | (addr << 28) | (cnt_mux_sel << 27))
         # single clk pulse with ~LE to start readback
@@ -1189,13 +1185,13 @@ class PhaserChannel:
             * :math:`b_0` and :math:`b_1` are the feedforward gains for the two
               delays
 
-        .. seealso:: :meth:`set_iir`
+        See also :meth:`PhaserChannel.set_iir`.
 
         :param profile: Profile to set (0 to 3)
-        :param b0: b0 filter coefficient (16 bit signed)
-        :param b1: b1 filter coefficient (16 bit signed)
-        :param a1: a1 filter coefficient (16 bit signed)
-        :param offset: Output offset (16 bit signed)
+        :param b0: b0 filter coefficient (16-bit signed)
+        :param b1: b1 filter coefficient (16-bit signed)
+        :param a1: a1 filter coefficient (16-bit signed)
+        :param offset: Output offset (16-bit signed)
         """
         if (profile < 0) or (profile > 3):
             raise ValueError("invalid profile index")
@@ -1240,7 +1236,7 @@ class PhaserChannel:
             integrator gain limit is infinite. Same sign as ``ki``.
         :param x_offset: IIR input offset. Used as the negative
             setpoint when stabilizing to a desired input setpoint. Will
-            be converted to an equivalent output offset and added to y_offset.
+            be converted to an equivalent output offset and added to ``y_offset``.
         :param y_offset: IIR output offset.
         """
         NORM = 1 << SERVO_COEFF_SHIFT
@@ -1296,7 +1292,7 @@ class PhaserOscillator:
     def set_frequency_mu(self, ftw):
         """Set Phaser MultiDDS frequency tuning word.
 
-        :param ftw: Frequency tuning word (32 bit)
+        :param ftw: Frequency tuning word (32-bit)
         """
         rtio_output(self.base_addr, ftw)
 
@@ -1314,8 +1310,8 @@ class PhaserOscillator:
     def set_amplitude_phase_mu(self, asf=0x7fff, pow=0, clr=0):
         """Set Phaser MultiDDS amplitude, phase offset and accumulator clear.
 
-        :param asf: Amplitude (15 bit)
-        :param pow: Phase offset word (16 bit)
+        :param asf: Amplitude (15-bit)
+        :param pow: Phase offset word (16-bit)
         :param clr: Clear the phase accumulator (persistent)
         """
         data = (asf & 0x7fff) | ((clr & 1) << 15) | (pow << 16)
@@ -1346,38 +1342,42 @@ class Miqro:
 
     **Oscillators**
 
-    * There are n_osc = 16 oscillators with oscillator IDs 0..n_osc-1.
+    * There are ``n_osc = 16`` oscillators with oscillator IDs ``0``... ``n_osc-1``.
     * Each oscillator outputs one tone at any given time
 
-        * I/Q (quadrature, a.k.a. complex) 2x16 bit signed data
+        * I/Q (quadrature, a.k.a. complex) 2x16-bit signed data
           at tau = 4 ns sample intervals, 250 MS/s, Nyquist 125 MHz, bandwidth 200 MHz
           (from f = -100..+100 MHz, taking into account the interpolation anti-aliasing
           filters in subsequent interpolators),
-        * 32 bit frequency (f) resolution (~ 1/16 Hz),
-        * 16 bit unsigned amplitude (a) resolution
-        * 16 bit phase offset (p) resolution
+        * 32-bit frequency (f) resolution (~ 1/16 Hz),
+        * 16-bit unsigned amplitude (a) resolution
+        * 16-bit phase offset (p) resolution
 
-    * The output phase p' of each oscillator at time t (boot/reset/initialization of the
-      device at t=0) is then p' = f*t + p (mod 1 turn) where f and p are the (currently
+    * The output phase ``p'`` of each oscillator at time ``t`` (boot/reset/initialization of the
+      device at ``t=0``) is then ``p' = f*t + p (mod 1 turn)`` where ``f`` and ``p`` are the (currently
       active) profile frequency and phase offset.
-    * Note: The terms  "phase coherent" and "phase tracking" are defined to refer to this
-      choice of oscillator output phase p'. Note that the phase offset p is not relative to
-      (on top of previous phase/profiles/oscillator history).
-      It is "absolute" in the sense that frequency f and phase offset p fully determine
-      oscillator output phase p' at time t. This is unlike typical DDS behavior.
+    
+    .. note :: 
+        The terms  "phase coherent" and "phase tracking" are defined to refer to this
+        choice of oscillator output phase ``p'``. Note that the phase offset ``p`` is not relative to
+        (on top of previous phase/profiles/oscillator history).
+        It is "absolute" in the sense that frequency ``f`` and phase offset ``p`` fully determine
+        oscillator output phase ``p'`` at time ``t``. This is unlike typical DDS behavior.
+    
     * Frequency, phase, and amplitude of each oscillator are configurable by selecting one of
-      n_profile = 32 profiles 0..n_profile-1. This selection is fast and can be done for
-      each pulse. The phase coherence defined above is guaranteed for each
+      ``n_profiles = 32`` profiles ``0``... ``n_profile-1``. This selection is fast and can be 
+      done for each pulse. The phase coherence defined above is guaranteed for each
       profile individually.
     * Note: one profile per oscillator (usually profile index 0) should be reserved
       for the NOP (no operation, identity) profile, usually with zero amplitude.
     * Data for each profile for each oscillator can be configured
       individually. Storing profile data should be considered "expensive".
-    * Note: The annotation that some operation is "expensive" does not mean it is
-      impossible, just that it may take a significant amount of time and
-      resources to execute such that it may be impractical when used often or
-      during fast pulse sequences. They are intended for use in calibration and
-      initialization.
+    
+    .. note:: 
+        To refer to an operation as "expensive" does not mean it is impossible, 
+        merely that it may take a significant amount of time and resources to 
+        execute, such that it may be impractical when used often or during fast 
+        pulse sequences. They are intended for use in calibration and initialization.  
 
     **Summation**
 
@@ -1394,18 +1394,18 @@ class Miqro:
       the RF output.
     * Selected profiles become active simultaneously (on the same output sample) when
       triggering the shaper with the first shaper output sample.
-    * The shaper reads (replays) window samples from a memory of size n_window = 1 << 10.
+    * The shaper reads (replays) window samples from a memory of size ``n_window = 1 << 10``.
     * The window memory can be segmented by choosing different start indices
       to support different windows.
     * Each window memory segment starts with a header determining segment
       length and interpolation parameters.
     * The window samples are interpolated by a factor (rate change) between 1 and
-      r = 1 << 12.
+      ``r = 1 << 12``.
     * The interpolation order is constant, linear, quadratic, or cubic. This
       corresponds to interpolation modes from rectangular window (1st order CIC)
       or zero order hold) to Parzen window (4th order CIC or cubic spline).
     * This results in support for single shot pulse lengths (envelope support) between
-      tau and a bit more than r * n_window * tau = (1 << 12 + 10) tau ~ 17 ms.
+      tau and a bit more than ``r * n_window * tau = (1 << 12 + 10) tau ~ 17 ms``.
     * Windows can be configured to be head-less and/or tail-less, meaning, they
       do not feed zero-amplitude samples into the shaper before and after
       each window respectively. This is used to implement pulses with arbitrary
@@ -1413,18 +1413,18 @@ class Miqro:
 
     **Overall properties**
 
-    * The DAC may upconvert the signal by applying a frequency offset f1 with
-      phase p1.
+    * The DAC may upconvert the signal by applying a frequency offset ``f1`` with
+      phase ``p1``.
     * In the Upconverter Phaser variant, the analog quadrature upconverter
-      applies another frequency of f2 and phase p2.
+      applies another frequency of ``f2`` and phase ``p2``.
     * The resulting phase of the signal from one oscillator at the SMA output is
-      (f + f1 + f2)*t + p + s(t - t0) + p1 + p2 (mod 1 turn)
-      where s(t - t0) is the phase of the interpolated
-      shaper output, and t0 is the trigger time (fiducial of the shaper).
+      ``(f + f1 + f2)*t + p + s(t - t0) + p1 + p2 (mod 1 turn)``
+      where ``s(t - t0)`` is the phase of the interpolated
+      shaper output, and ``t0`` is the trigger time (fiducial of the shaper).
       Unsurprisingly the frequency is the derivative of the phase.
     * Group delays between pulse parameter updates are matched across oscillators,
       shapers, and channels.
-    * The minimum time to change profiles and phase offsets is ~128 ns (estimate, TBC).
+    * The minimum time to change profiles and phase offsets is ``~128 ns`` (estimate, TBC).
       This is the minimum pulse interval.
       The sustained pulse rate of the RTIO PHY/Fastlink is one pulse per Fastlink frame
       (may be increased, TBC).
@@ -1455,9 +1455,9 @@ class Miqro:
 
         :param oscillator: Oscillator index (0 to 15)
         :param profile: Profile index (0 to 31)
-        :param ftw: Frequency tuning word (32 bit signed integer on a 250 MHz clock)
-        :param asf: Amplitude scale factor (16 bit unsigned integer)
-        :param pow_: Phase offset word (16 bit integer)
+        :param ftw: Frequency tuning word (32-bit signed integer on a 250 MHz clock)
+        :param asf: Amplitude scale factor (16-bit unsigned integer)
+        :param pow_: Phase offset word (16-bit integer)
         """
         if oscillator >= 16:
             raise ValueError("invalid oscillator index")
@@ -1481,7 +1481,7 @@ class Miqro:
         :param amplitude: Amplitude in units of full scale (0. to 1.)
         :param phase: Phase in turns. See :class:`Miqro` for a definition of
             phase in this context.
-        :return: The quantized 32 bit frequency tuning word
+        :return: The quantized 32-bit frequency tuning word
         """
         ftw = int32(round(frequency*((1 << 30)/(62.5*MHz))))
         asf = int32(round(amplitude*0xffff))
@@ -1493,7 +1493,7 @@ class Miqro:
 
     @kernel
     def set_window_mu(self, start, iq, rate=1, shift=0, order=3, head=1, tail=1):
-        """Store a window segment (machine units)
+        """Store a window segment (machine units).
 
         :param start: Window start address (0 to 0x3ff)
         :param iq: List of IQ window samples. Each window sample is an integer
@@ -1540,7 +1540,7 @@ class Miqro:
 
     @kernel
     def set_window(self, start, iq, period=4*ns, order=3, head=1, tail=1):
-        """Store a window segment
+        """Store a window segment.
 
         :param start: Window start address (0 to 0x3ff)
         :param iq: List of IQ window samples. Each window sample is a pair of
@@ -1577,7 +1577,7 @@ class Miqro:
 
     @kernel
     def encode(self, window, profiles, data):
-        """Encode window and profile selection
+        """Encode window and profile selection.
 
         :param window: Window start address (0 to 0x3ff)
         :param profiles: List of profile indices for the oscillators. Maximum

artiq/coredevice/rtio.py

@@ -25,7 +25,7 @@ def rtio_input_data(channel: TInt32) -> TInt32:
 @syscall(flags={"nowrite"})
 def rtio_input_timestamped_data(timeout_mu: TInt64,
                                 channel: TInt32) -> TTuple([TInt64, TInt32]):
-    """Wait for an input event up to timeout_mu on the given channel, and
+    """Wait for an input event up to ``timeout_mu`` on the given channel, and
     return a tuple of timestamp and attached data, or (-1, 0) if the timeout is
     reached."""
     raise NotImplementedError("syscall not simulated")

artiq/coredevice/sampler.py

@@ -16,13 +16,13 @@ SPI_CS_PGIA = 1  # separate SPI bus, CS used as RCLK
 
 @portable
 def adc_mu_to_volt(data, gain=0, corrected_fs=True):
-    """Convert ADC data in machine units to Volts.
+    """Convert ADC data in machine units to volts.
 
-    :param data: 16 bit signed ADC word
+    :param data: 16-bit signed ADC word
     :param gain: PGIA gain setting (0: 1, ..., 3: 1000)
     :param corrected_fs: use corrected ADC FS reference.
-    Should be True for Samplers' revisions after v2.1. False for v2.1 and earlier.
-    :return: Voltage in Volts
+        Should be ``True`` for Sampler revisions after v2.1. ``False`` for v2.1 and earlier.
+    :return: Voltage in volts
     """
     if gain == 0:
         volt_per_lsb = 20.48 / (1 << 16) if corrected_fs else 20. / (1 << 16)
@@ -40,7 +40,7 @@ def adc_mu_to_volt(data, gain=0, corrected_fs=True):
 class Sampler:
     """Sampler ADC.
 
-    Controls the LTC2320-16 8 channel 16 bit ADC with SPI interface and
+    Controls the LTC2320-16 8-channel 16-bit ADC with SPI interface and
     the switchable gain instrumentation amplifiers.
 
     :param spi_adc_device: ADC SPI bus device name
@@ -119,12 +119,12 @@ class Sampler:
         Perform a conversion and transfer the samples.
 
         This assumes that the input FIFO of the ADC SPI RTIO channel is deep
-        enough to buffer the samples (half the length of `data` deep).
+        enough to buffer the samples (half the length of ``data`` deep).
         If it is not, there will be RTIO input overflows.
 
         :param data: List of data samples to fill. Must have even length.
             Samples are always read from the last channel (channel 7) down.
-            The `data` list will always be filled with the last item
+            The ``data`` list will always be filled with the last item
             holding to the sample from channel 7.
         """
         self.cnv.pulse(30*ns)  # t_CNVH
@@ -142,7 +142,7 @@ class Sampler:
     def sample(self, data):
         """Acquire a set of samples.
 
-        .. seealso:: :meth:`sample_mu`
+        See also :meth:`Sampler.sample_mu`.
 
         :param data: List of floating point data samples to fill.
         """

artiq/coredevice/shuttler.py

@@ -16,8 +16,8 @@ def shuttler_volt_to_mu(volt):
 class Config:
     """Shuttler configuration registers interface.
 
-    The configuration registers control waveform phase auto-clear, and pre-DAC
-    gain & offset values for calibration with ADC on the Shuttler AFE card.
+    The configuration registers control waveform phase auto-clear, pre-DAC
+    gain and offset values for calibration with ADC on the Shuttler AFE card.
 
     To find the calibrated DAC code, the Shuttler Core first multiplies the
     output data with pre-DAC gain, then adds the offset.
@@ -84,8 +84,7 @@ class Config:
     def set_offset(self, channel, offset):
         """Set the 16-bits pre-DAC offset register of a Shuttler Core channel.
 
-        .. seealso::
-            :meth:`shuttler_volt_to_mu`
+        See also :meth:`shuttler_volt_to_mu`.
 
         :param channel: Shuttler Core channel to be configured.
         :param offset: Shuttler Core channel offset.
@@ -114,13 +113,13 @@ class DCBias:
     .. math::
         w(t) = a(t) + b(t) * cos(c(t))
     
-    And `t` corresponds to time in seconds.
+    and `t` corresponds to time in seconds.
     This class controls the cubic spline `a(t)`, in which
 
     .. math::
         a(t) = p_0 + p_1t + \\frac{p_2t^2}{2} + \\frac{p_3t^3}{6}
     
-    And `a(t)` is in Volt.
+    and `a(t)` is measured in volts. 
 
     :param channel: RTIO channel number of this DC-bias spline interface.
     :param core_device: Core device name.
@@ -137,7 +136,7 @@ class DCBias:
         """Set the DC-bias spline waveform.
 
         Given `a(t)` as defined in :class:`DCBias`, the coefficients should be
-        configured by the following formulae.
+        configured by the following formulae:
 
         .. math::
             T &= 8*10^{-9}
@@ -154,8 +153,10 @@ class DCBias:
         and 48 bits in width respectively. See :meth:`shuttler_volt_to_mu` for
         machine unit conversion.
 
-        Note: The waveform is not updated to the Shuttler Core until
-        triggered. See :class:`Trigger` for the update triggering mechanism.
+        .. note:: 
+            The waveform is not updated to the Shuttler Core until
+            triggered. See :class:`Trigger` for the update triggering 
+            mechanism.
 
         :param a0: The :math:`a_0` coefficient in machine unit.
         :param a1: The :math:`a_1` coefficient in machine unit.
@@ -189,7 +190,7 @@ class DDS:
     .. math::
         w(t) = a(t) + b(t) * cos(c(t))
     
-    And `t` corresponds to time in seconds.
+    and `t` corresponds to time in seconds.
     This class controls the cubic spline `b(t)` and quadratic spline `c(t)`,
     in which
 
@@ -198,7 +199,7 @@ class DDS:
 
         c(t) &= r_0 + r_1t + \\frac{r_2t^2}{2}
     
-    And `b(t)` is in Volt, `c(t)` is in number of turns. Note that `b(t)`
+    `b(t)` is in volts, `c(t)` is in number of turns. Note that `b(t)`
     contributes to a constant gain of :math:`g=1.64676`.
 
     :param channel: RTIO channel number of this DC-bias spline interface.
@@ -244,13 +245,13 @@ class DDS:
         Note: The waveform is not updated to the Shuttler Core until
         triggered. See :class:`Trigger` for the update triggering mechanism.
 
-        :param b0: The :math:`b_0` coefficient in machine unit.
-        :param b1: The :math:`b_1` coefficient in machine unit.
-        :param b2: The :math:`b_2` coefficient in machine unit.
-        :param b3: The :math:`b_3` coefficient in machine unit.
-        :param c0: The :math:`c_0` coefficient in machine unit.
-        :param c1: The :math:`c_1` coefficient in machine unit.
-        :param c2: The :math:`c_2` coefficient in machine unit.
+        :param b0: The :math:`b_0` coefficient in machine units.
+        :param b1: The :math:`b_1` coefficient in machine units.
+        :param b2: The :math:`b_2` coefficient in machine units.
+        :param b3: The :math:`b_3` coefficient in machine units.
+        :param c0: The :math:`c_0` coefficient in machine units.
+        :param c1: The :math:`c_1` coefficient in machine units.
+        :param c2: The :math:`c_2` coefficient in machine units.
         """
         coef_words = [
             b0,
@@ -292,8 +293,8 @@ class Trigger:
         """Triggers coefficient update of (a) Shuttler Core channel(s).
 
         Each bit corresponds to a Shuttler waveform generator core. Setting
-        `trig_out` bits commits the pending coefficient update (from
-        `set_waveform` in :class:`DCBias` and :class:`DDS`) to the Shuttler Core
+        ``trig_out`` bits commits the pending coefficient update (from
+        ``set_waveform`` in :class:`DCBias` and :class:`DDS`) to the Shuttler Core
         synchronously.
 
         :param trig_out: Coefficient update trigger bits. The MSB corresponds
@@ -336,8 +337,8 @@ _AD4115_REG_SETUPCON0 = 0x20
 class Relay:
     """Shuttler AFE relay switches.
 
-    It controls the AFE relay switches and the LEDs. Switch on the relay to
-    enable AFE output; And off to disable the output. The LEDs indicates the
+    This class controls the AFE relay switches and the LEDs. Switch the relay on to
+    enable AFE output; off to disable the output. The LEDs indicate the
     relay status.
 
     .. note::
@@ -357,7 +358,7 @@ class Relay:
     def init(self):
         """Initialize SPI device.
 
-        Configures the SPI bus to 16-bits, write-only, simultaneous relay
+        Configures the SPI bus to 16 bits, write-only, simultaneous relay
         switches and LED control.
         """
         self.bus.set_config_mu(
@@ -365,10 +366,10 @@ class Relay:
 
     @kernel
     def enable(self, en: TInt32):
-        """Enable/Disable relay switches of corresponding channels.
+        """Enable/disable relay switches of corresponding channels.
 
         Each bit corresponds to the relay switch of a channel. Asserting a bit
-        turns on the corresponding relay switch; Deasserting the same bit
+        turns on the corresponding relay switch; deasserting the same bit
         turns off the switch instead.
 
         :param en: Switch enable bits. The MSB corresponds to Channel 15, LSB
@@ -403,12 +404,12 @@ class ADC:
     def reset(self):
         """AD4115 reset procedure.
 
-        This performs a write operation of 96 serial clock cycles with DIN
-        held at high. It resets the entire device, including the register
+        Performs a write operation of 96 serial clock cycles with DIN
+        held at high. This resets the entire device, including the register
         contents.
 
         .. note::
-            The datasheet only requires 64 cycles, but reasserting `CS_n` right
+            The datasheet only requires 64 cycles, but reasserting ``CS_n`` right
             after the transfer appears to interrupt the start-up sequence.
         """
         self.bus.set_config_mu(ADC_SPI_CONFIG, 32, SPIT_ADC_WR, CS_ADC)
@@ -420,7 +421,7 @@ class ADC:
 
     @kernel
     def read8(self, addr: TInt32) -> TInt32:
-        """Read from 8 bit register.
+        """Read from 8-bit register.
 
         :param addr: Register address.
         :return: Read-back register content.
@@ -433,7 +434,7 @@ class ADC:
 
     @kernel
     def read16(self, addr: TInt32) -> TInt32:
-        """Read from 16 bit register.
+        """Read from 16-bit register.
 
         :param addr: Register address.
         :return: Read-back register content.
@@ -446,7 +447,7 @@ class ADC:
 
     @kernel
     def read24(self, addr: TInt32) -> TInt32:
-        """Read from 24 bit register.
+        """Read from 24-bit register.
 
         :param addr: Register address.
         :return: Read-back register content.
@@ -459,7 +460,7 @@ class ADC:
 
     @kernel
     def write8(self, addr: TInt32, data: TInt32):
-        """Write to 8 bit register.
+        """Write to 8-bit register.
 
         :param addr: Register address.
         :param data: Data to be written.
@@ -470,7 +471,7 @@ class ADC:
 
     @kernel
     def write16(self, addr: TInt32, data: TInt32):
-        """Write to 16 bit register.
+        """Write to 16-bit register.
 
         :param addr: Register address.
         :param data: Data to be written.
@@ -481,7 +482,7 @@ class ADC:
 
     @kernel
     def write24(self, addr: TInt32, data: TInt32):
-        """Write to 24 bit register.
+        """Write to 24-bit register.
 
         :param addr: Register address.
         :param data: Data to be written.
@@ -494,11 +495,11 @@ class ADC:
     def read_ch(self, channel: TInt32) -> TFloat:
         """Sample a Shuttler channel on the AFE.
 
-        It performs a single conversion using profile 0 and setup 0, on the
-        selected channel. The sample is then recovered and converted to volt.
+        Performs a single conversion using profile 0 and setup 0 on the
+        selected channel. The sample is then recovered and converted to volts.
 
         :param channel: Shuttler channel to be sampled.
-        :return: Voltage sample in volt.
+        :return: Voltage sample in volts.
         """
         # Always configure Profile 0 for single conversion
         self.write16(_AD4115_REG_CH0, 0x8000 | ((channel * 2 + 1) << 4))
@@ -519,7 +520,7 @@ class ADC:
 
     @kernel
     def standby(self):
-        """Place the ADC in standby mode and disables power down the clock.
+        """Place the ADC in standby mode and disable power down the clock.
 
         The ADC can be returned to single conversion mode by calling
         :meth:`single_conversion`.
@@ -536,13 +537,7 @@ class ADC:
         .. note::
             The AD4115 datasheet suggests placing the ADC in standby mode
             before power-down. This is to prevent accidental entry into the
-            power-down mode.
-
-        .. seealso::
-            :meth:`standby`
-
-            :meth:`power_up`
-
+            power-down mode. See also :meth:`standby` and :meth:`power_up`.
         """
         self.write16(_AD4115_REG_ADCMODE, 0x8030)
 
@@ -552,8 +547,7 @@ class ADC:
         
         The ADC should be in power-down mode before calling this method.
 
-        .. seealso::
-            :meth:`power_down`
+        See also :meth:`power_down`.
         """
         self.reset()
         # Although the datasheet claims 500 us reset wait time, only waiting
@@ -564,22 +558,18 @@ class ADC:
     def calibrate(self, volts, trigger, config, samples=[-5.0, 0.0, 5.0]):
         """Calibrate the Shuttler waveform generator using the ADC on the AFE.
 
-        It finds the average slope rate and average offset by samples, and
-        compensate by writing the pre-DAC gain and offset registers in the
+        Finds the average slope rate and average offset by samples, and
+        compensates by writing the pre-DAC gain and offset registers in the
         configuration registers.
 
         .. note::
-            If the pre-calibration slope rate < 1, the calibration procedure
-            will introduce a pre-DAC gain compensation. However, this may
-            saturate the pre-DAC voltage code. (See :class:`Config` notes).
+            If the pre-calibration slope rate is less than 1, the calibration 
+            procedure will introduce a pre-DAC gain compensation. However, this 
+            may saturate the pre-DAC voltage code (see :class:`Config` notes).
             Shuttler cannot cover the entire +/- 10 V range in this case.
+            See also :meth:`Config.set_gain` and :meth:`Config.set_offset`.
 
-        .. seealso::
-            :meth:`Config.set_gain`
-
-            :meth:`Config.set_offset`
-
-        :param volts: A list of all 16 cubic DC-bias spline.
+        :param volts: A list of all 16 cubic DC-bias splines.
             (See :class:`DCBias`)
         :param trigger: The Shuttler spline coefficient update trigger.
         :param config: The Shuttler Core configuration registers.

artiq/coredevice/spi2.py

@@ -4,7 +4,7 @@ Driver for generic SPI on RTIO.
 This ARTIQ coredevice driver corresponds to the "new" MiSoC SPI core (v2).
 
 Output event replacement is not supported and issuing commands at the same
-time is an error.
+time results in collision errors.
 """
 
 from artiq.language.core import syscall, kernel, portable, delay_mu
@@ -51,7 +51,7 @@ class SPIMaster:
       event (``SPI_INPUT`` set), then :meth:`read` the ``data``.
     * If ``SPI_END`` was not set, repeat the transfer sequence.
 
-    A **transaction** consists of one or more **transfers**. The chip select
+    A *transaction* consists of one or more *transfers*. The chip select
     pattern is asserted for the entire length of the transaction. All but the
     last transfer are submitted with ``SPI_END`` cleared in the configuration
     register.
@@ -138,10 +138,10 @@ class SPIMaster:
         * :const:`SPI_LSB_FIRST`: LSB is the first bit on the wire (reset=0)
         * :const:`SPI_HALF_DUPLEX`: 3-wire SPI, in/out on ``mosi`` (reset=0)
 
-        :param flags: A bit map of `SPI_*` flags.
+        :param flags: A bit map of :const:`SPI_*` flags.
         :param length: Number of bits to write during the next transfer.
             (reset=1)
-        :param freq: Desired SPI clock frequency. (reset=f_rtio/2)
+        :param freq: Desired SPI clock frequency. (reset= ``f_rtio/2``)
         :param cs: Bit pattern of chip selects to assert.
             Or number of the chip select to assert if ``cs`` is decoded
             downstream. (reset=0)
@@ -152,16 +152,15 @@ class SPIMaster:
     def set_config_mu(self, flags, length, div, cs):
         """Set the ``config`` register (in SPI bus machine units).
 
-        .. seealso:: :meth:`set_config`
+        See also :meth:`set_config`.
 
         :param flags: A bit map of `SPI_*` flags.
         :param length: Number of bits to write during the next transfer.
             (reset=1)
         :param div: Counter load value to divide the RTIO
-          clock by to generate the SPI clock. (minimum=2, reset=2)
-          ``f_rtio_clk/f_spi == div``. If ``div`` is odd,
-          the setup phase of the SPI clock is one coarse RTIO clock cycle
-          longer than the hold phase.
+          clock by to generate the SPI clock; ``f_rtio_clk/f_spi == div``. 
+          If ``div`` is odd, the setup phase of the SPI clock is one 
+          coarse RTIO clock cycle longer than the hold phase. (minimum=2, reset=2)
         :param cs: Bit pattern of chip selects to assert.
             Or number of the chip select to assert if ``cs`` is decoded
             downstream. (reset=0)
@@ -188,7 +187,7 @@ class SPIMaster:
         experiments and are known.
 
         This method is portable and can also be called from e.g.
-        :meth:`__init__`.
+        ``__init__``.
 
         .. warning:: If this method is called while recording a DMA
            sequence, the playback of the sequence will not update the
@@ -208,7 +207,7 @@ class SPIMaster:
         * The ``data`` register and the shift register are 32 bits wide.
         * Data writes take one ``ref_period`` cycle.
         * A transaction consisting of a single transfer (``SPI_END``) takes
-          :attr:`xfer_duration_mu` ``=(n + 1)*div`` cycles RTIO time where
+          :attr:`xfer_duration_mu` `` = (n + 1) * div`` cycles RTIO time, where
           ``n`` is the number of bits and ``div`` is the SPI clock divider.
         * Transfers in a multi-transfer transaction take up to one SPI clock
           cycle less time depending on multiple parameters. Advanced users may

artiq/coredevice/suservo.py

@@ -24,7 +24,7 @@ def y_mu_to_full_scale(y):
 
 @portable
 def adc_mu_to_volts(x, gain, corrected_fs=True):
-    """Convert servo ADC data from machine units to Volt."""
+    """Convert servo ADC data from machine units to volts."""
     val = (x >> 1) & 0xffff
     mask = 1 << 15
     val = -(val & mask) + (val & ~mask)
@@ -155,7 +155,7 @@ class SUServo:
         This method advances the timeline by one servo memory access.
         It does not support RTIO event replacement.
 
-        :param enable (int): Enable servo operation. Enabling starts servo
+        :param int enable: Enable servo operation. Enabling starts servo
             iterations beginning with the ADC sampling stage. The first DDS
             update will happen about two servo cycles (~2.3 µs) after enabling
             the servo. The delay is deterministic.
@@ -198,7 +198,7 @@ class SUServo:
         consistent and valid data, stop the servo before using this method.
 
         :param adc: ADC channel number (0-7)
-        :return: 17 bit signed X0
+        :return: 17-bit signed X0
         """
         # State memory entries are 25 bits. Due to the pre-adder dynamic
         # range, X0/X1/OFFSET are only 24 bits. Finally, the RTIO interface
@@ -288,12 +288,12 @@ class Channel:
     def set_dds_mu(self, profile, ftw, offs, pow_=0):
         """Set profile DDS coefficients in machine units.
 
-        .. seealso:: :meth:`set_amplitude`
+        See also :meth:`Channel.set_dds`.
 
         :param profile: Profile number (0-31)
-        :param ftw: Frequency tuning word (32 bit unsigned)
-        :param offs: IIR offset (17 bit signed)
-        :param pow_: Phase offset word (16 bit)
+        :param ftw: Frequency tuning word (32-bit unsigned)
+        :param offs: IIR offset (17-bit signed)
+        :param pow_: Phase offset word (16-bit)
         """
         base = (self.servo_channel << 8) | (profile << 3)
         self.servo.write(base + 0, ftw >> 16)
@@ -327,7 +327,7 @@ class Channel:
         See :meth:`set_dds_mu` for setting the complete DDS profile.
 
         :param profile: Profile number (0-31)
-        :param offs: IIR offset (17 bit signed)
+        :param offs: IIR offset (17-bit signed)
         """
         base = (self.servo_channel << 8) | (profile << 3)
         self.servo.write(base + 4, offs)
@@ -375,15 +375,15 @@ class Channel:
             * :math:`b_0` and :math:`b_1` are the feedforward gains for the two
               delays
 
-        .. seealso:: :meth:`set_iir`
+        See also :meth:`Channel.set_iir`.
 
         :param profile: Profile number (0-31)
         :param adc: ADC channel to take IIR input from (0-7)
-        :param a1: 18 bit signed A1 coefficient (Y1 coefficient,
+        :param a1: 18-bit signed A1 coefficient (Y1 coefficient,
             feedback, integrator gain)
-        :param b0: 18 bit signed B0 coefficient (recent,
+        :param b0: 18-bit signed B0 coefficient (recent,
             X0 coefficient, feed forward, proportional gain)
-        :param b1: 18 bit signed B1 coefficient (old,
+        :param b1: 18-bit signed B1 coefficient (old,
             X1 coefficient, feed forward, proportional gain)
         :param dly: IIR update suppression time. In units of IIR cycles
             (~1.2 µs, 0-255).
@@ -499,7 +499,7 @@ class Channel:
         consistent and valid data, stop the servo before using this method.
 
         :param profile: Profile number (0-31)
-        :return: 17 bit unsigned Y0
+        :return: 17-bit unsigned Y0
         """
         return self.servo.read(STATE_SEL | (self.servo_channel << 5) | profile)
 
@@ -535,7 +535,7 @@ class Channel:
         This method advances the timeline by one servo memory access.
 
         :param profile: Profile number (0-31)
-        :param y: 17 bit unsigned Y0
+        :param y: 17-bit unsigned Y0
         """
         # State memory is 25 bits wide and signed.
         # Reads interact with the 18 MSBs (coefficient memory width)

artiq/coredevice/ttl.py

@@ -27,7 +27,7 @@ class TTLOut:
 
     This should be used with output-only channels.
 
-    :param channel: channel number
+    :param channel: Channel number
     """
     kernel_invariants = {"core", "channel", "target_o"}
 
@@ -109,7 +109,7 @@ class TTLInOut:
     API is active (e.g. the gate is open, or the input events have not been
     fully read out), another API must not be used simultaneously.
 
-    :param channel: channel number
+    :param channel: Channel number
     """
     kernel_invariants = {"core", "channel", "gate_latency_mu",
         "target_o", "target_oe", "target_sens", "target_sample"}
@@ -145,7 +145,7 @@ class TTLInOut:
         """Set the direction to output at the current position of the time
         cursor.
 
-        There must be a delay of at least one RTIO clock cycle before any
+        A delay of at least one RTIO clock cycle is necessary before any
         other command can be issued.
 
         This method only configures the direction at the FPGA. When using
@@ -158,7 +158,7 @@ class TTLInOut:
         """Set the direction to input at the current position of the time
         cursor.
 
-        There must be a delay of at least one RTIO clock cycle before any
+        A delay of at least one RTIO clock cycle is necessary before any
         other command can be issued.
 
         This method only configures the direction at the FPGA. When using
@@ -326,17 +326,18 @@ class TTLInOut:
         :return: The number of events before the timeout elapsed (0 if none
             observed).
 
-        Examples:
+        **Examples:**
+
             To count events on channel ``ttl_input``, up to the current timeline
-            position::
+            position: ::
 
                 ttl_input.count(now_mu())
 
             If other events are scheduled between the end of the input gate
-            period and when the number of events is counted, using ``now_mu()``
-            as timeout consumes an unnecessary amount of timeline slack. In
-            such cases, it can be beneficial to pass a more precise timestamp,
-            for example::
+            period and when the number of events is counted, using 
+            :meth:`~artiq.language.core.now_mu()` as timeout consumes an 
+            unnecessary amount of timeline slack. In such cases, it can be 
+            beneficial to pass a more precise timestamp, for example: ::
 
                 gate_end_mu = ttl_input.gate_rising(100 * us)
 
@@ -350,7 +351,7 @@ class TTLInOut:
                 num_rising_edges = ttl_input.count(gate_end_mu)
 
             The ``gate_*()`` family of methods return the cursor at the end
-            of the window, allowing this to be expressed in a compact fashion::
+            of the window, allowing this to be expressed in a compact fashion: ::
 
                 ttl_input.count(ttl_input.gate_rising(100 * us))
         """
@@ -441,7 +442,7 @@ class TTLInOut:
         was being watched.
 
         The time cursor is not modified by this function. This function
-        always makes the slack negative.
+        always results in negative slack.
         """
         rtio_output(self.target_sens, 0)
         success = True

artiq/coredevice/urukul.py

@@ -130,7 +130,7 @@ class CPLD:
     :param spi_device: SPI bus device name
     :param io_update_device: IO update RTIO TTLOut channel name
     :param dds_reset_device: DDS reset RTIO TTLOut channel name
-    :param sync_device: AD9910 SYNC_IN RTIO TTLClockGen channel name
+    :param sync_device: AD9910 ``SYNC_IN`` RTIO TTLClockGen channel name
     :param refclk: Reference clock (SMA, MMCX or on-board 100 MHz oscillator)
         frequency in Hz
     :param clk_sel: Reference clock selection. For hardware revision >= 1.3
@@ -143,9 +143,9 @@ class CPLD:
         1: divide-by-1; 2: divide-by-2; 3: divide-by-4.
         On Urukul boards with CPLD gateware before v1.3.1 only the default
         (0, i.e. variant dependent divider) is valid.
-    :param sync_sel: SYNC (multi-chip synchronisation) signal source selection.
-        0 corresponds to SYNC_IN being supplied by the FPGA via the EEM
-        connector. 1 corresponds to SYNC_OUT from DDS0 being distributed to the
+    :param sync_sel: ``SYNC`` (multi-chip synchronisation) signal source selection.
+        0 corresponds to ``SYNC_IN`` being supplied by the FPGA via the EEM
+        connector. 1 corresponds to ``SYNC_OUT`` from DDS0 being distributed to the
         other chips.
     :param rf_sw: Initial CPLD RF switch register setting (default: 0x0).
         Knowledge of this state is not transferred between experiments.
@@ -153,8 +153,8 @@ class CPLD:
         0x00000000). See also :meth:`get_att_mu` which retrieves the hardware
         state without side effects. Knowledge of this state is not transferred
         between experiments.
-    :param sync_div: SYNC_IN generator divider. The ratio between the coarse
-        RTIO frequency and the SYNC_IN generator frequency (default: 2 if
+    :param sync_div: ``SYNC_IN`` generator divider. The ratio between the coarse
+        RTIO frequency and the ``SYNC_IN`` generator frequency (default: 2 if
         `sync_device` was specified).
     :param core_device: Core device name
 
@@ -204,7 +204,7 @@ class CPLD:
 
         See :func:`urukul_cfg` for possible flags.
 
-        :param cfg: 24 bit data to be written. Will be stored at
+        :param cfg: 24-bit data to be written. Will be stored at
             :attr:`cfg_reg`.
         """
         self.bus.set_config_mu(SPI_CONFIG | spi.SPI_END, 24,
@@ -237,7 +237,7 @@ class CPLD:
 
         Resets the DDS I/O interface and verifies correct CPLD gateware
         version.
-        Does not pulse the DDS MASTER_RESET as that confuses the AD9910.
+        Does not pulse the DDS ``MASTER_RESET`` as that confuses the AD9910.
 
         :param blind: Do not attempt to verify presence and compatibility.
         """
@@ -283,7 +283,7 @@ class CPLD:
     def cfg_switches(self, state: TInt32):
         """Configure all four RF switches through the configuration register.
 
-        :param state: RF switch state as a 4 bit integer.
+        :param state: RF switch state as a 4-bit integer.
         """
         self.cfg_write((self.cfg_reg & ~0xf) | state)
 
@@ -326,11 +326,10 @@ class CPLD:
 
     @kernel
     def set_all_att_mu(self, att_reg: TInt32):
-        """Set all four digital step attenuators (in machine units).
+        """Set all four digital step attenuators (in machine units). 
+        See also :meth:`set_att_mu`.
 
-        .. seealso:: :meth:`set_att_mu`
-
-        :param att_reg: Attenuator setting string (32 bit)
+        :param att_reg: Attenuator setting string (32-bit)
         """
         self.bus.set_config_mu(SPI_CONFIG | spi.SPI_END, 32,
                                SPIT_ATT_WR, CS_ATT)
@@ -342,8 +341,7 @@ class CPLD:
         """Set digital step attenuator in SI units.
 
         This method will write the attenuator settings of all four channels.
-
-        .. seealso:: :meth:`set_att_mu`
+        See also :meth:`set_att_mu`.
 
         :param channel: Attenuator channel (0-3).
         :param att: Attenuation setting in dB. Higher value is more
@@ -359,9 +357,9 @@ class CPLD:
         The result is stored and will be used in future calls of
         :meth:`set_att_mu` and :meth:`set_att`.
 
-        .. seealso:: :meth:`get_channel_att_mu`
+        See also :meth:`get_channel_att_mu`.
 
-        :return: 32 bit attenuator settings
+        :return: 32-bit attenuator settings
         """
         self.bus.set_config_mu(SPI_CONFIG | spi.SPI_INPUT, 32,
                                SPIT_ATT_RD, CS_ATT)
@@ -380,7 +378,7 @@ class CPLD:
         The result is stored and will be used in future calls of
         :meth:`set_att_mu` and :meth:`set_att`.
 
-        .. seealso:: :meth:`get_att_mu`
+        See also :meth:`get_att_mu`.
 
         :param channel: Attenuator channel (0-3).
         :return: 8-bit digital attenuation setting:
@@ -392,7 +390,7 @@ class CPLD:
     def get_channel_att(self, channel: TInt32) -> TFloat:
         """Get digital step attenuator value for a channel in SI units.
 
-        .. seealso:: :meth:`get_channel_att_mu`
+        See also :meth:`get_channel_att_mu`.
 
         :param channel: Attenuator channel (0-3).
         :return: Attenuation setting in dB. Higher value is more
@@ -403,14 +401,14 @@ class CPLD:
 
     @kernel
     def set_sync_div(self, div: TInt32):
-        """Set the SYNC_IN AD9910 pulse generator frequency
+        """Set the ``SYNC_IN`` AD9910 pulse generator frequency
         and align it to the current RTIO timestamp.
 
-        The SYNC_IN signal is derived from the coarse RTIO clock
+        The ``SYNC_IN`` signal is derived from the coarse RTIO clock
         and the divider must be a power of two.
         Configure ``sync_sel == 0``.
 
-        :param div: SYNC_IN frequency divider. Must be a power of two.
+        :param div: ``SYNC_IN`` frequency divider. Must be a power of two.
             Minimum division ratio is 2. Maximum division ratio is 16.
         """
         ftw_max = 1 << 4

artiq/coredevice/zotino.py

@@ -1,7 +1,7 @@
 """RTIO driver for the Zotino 32-channel, 16-bit 1MSPS DAC.
 
 Output event replacement is not supported and issuing commands at the same
-time is an error.
+time results in a collision error.
 """
 
 from artiq.language.core import kernel

artiq/dashboard/applets_ccb.py

@@ -1,7 +1,7 @@
 import asyncio
 import logging
 
-from PyQt5 import QtCore, QtWidgets
+from PyQt6 import QtCore, QtGui, QtWidgets
 
 from artiq.gui import applets
 
@@ -13,58 +13,58 @@ class AppletsCCBDock(applets.AppletsDock):
     def __init__(self, *args, **kwargs):
         applets.AppletsDock.__init__(self, *args, **kwargs)
 
-        sep = QtWidgets.QAction(self.table)
+        sep = QtGui.QAction(self.table)
         sep.setSeparator(True)
         self.table.addAction(sep)
 
-        ccbp_group_menu = QtWidgets.QMenu()
-        actiongroup = QtWidgets.QActionGroup(self.table)
+        ccbp_group_menu = QtWidgets.QMenu(self.table)
+        actiongroup = QtGui.QActionGroup(self.table)
         actiongroup.setExclusive(True)
-        self.ccbp_group_none = QtWidgets.QAction("No policy", self.table)
+        self.ccbp_group_none = QtGui.QAction("No policy", self.table)
         self.ccbp_group_none.setCheckable(True)
         self.ccbp_group_none.triggered.connect(lambda: self.set_ccbp(""))
         ccbp_group_menu.addAction(self.ccbp_group_none)
         actiongroup.addAction(self.ccbp_group_none)
-        self.ccbp_group_ignore = QtWidgets.QAction("Ignore requests", self.table)
+        self.ccbp_group_ignore = QtGui.QAction("Ignore requests", self.table)
         self.ccbp_group_ignore.setCheckable(True)
         self.ccbp_group_ignore.triggered.connect(lambda: self.set_ccbp("ignore"))
         ccbp_group_menu.addAction(self.ccbp_group_ignore)
         actiongroup.addAction(self.ccbp_group_ignore)
-        self.ccbp_group_create = QtWidgets.QAction("Create applets", self.table)
+        self.ccbp_group_create = QtGui.QAction("Create applets", self.table)
         self.ccbp_group_create.setCheckable(True)
         self.ccbp_group_create.triggered.connect(lambda: self.set_ccbp("create"))
         ccbp_group_menu.addAction(self.ccbp_group_create)
         actiongroup.addAction(self.ccbp_group_create)
-        self.ccbp_group_enable = QtWidgets.QAction("Create and enable/disable applets",
-                                                    self.table)
+        self.ccbp_group_enable = QtGui.QAction("Create and enable/disable applets",
+                                               self.table)
         self.ccbp_group_enable.setCheckable(True)
         self.ccbp_group_enable.triggered.connect(lambda: self.set_ccbp("enable"))
         ccbp_group_menu.addAction(self.ccbp_group_enable)
         actiongroup.addAction(self.ccbp_group_enable)
-        self.ccbp_group_action = QtWidgets.QAction("Group CCB policy", self.table)
+        self.ccbp_group_action = QtGui.QAction("Group CCB policy", self.table)
         self.ccbp_group_action.setMenu(ccbp_group_menu)
         self.table.addAction(self.ccbp_group_action)
         self.table.itemSelectionChanged.connect(self.update_group_ccbp_menu)
         self.update_group_ccbp_menu()
 
-        ccbp_global_menu = QtWidgets.QMenu()
-        actiongroup = QtWidgets.QActionGroup(self.table)
+        ccbp_global_menu = QtWidgets.QMenu(self.table)
+        actiongroup = QtGui.QActionGroup(self.table)
         actiongroup.setExclusive(True)
-        self.ccbp_global_ignore = QtWidgets.QAction("Ignore requests", self.table)
+        self.ccbp_global_ignore = QtGui.QAction("Ignore requests", self.table)
         self.ccbp_global_ignore.setCheckable(True)
         ccbp_global_menu.addAction(self.ccbp_global_ignore)
         actiongroup.addAction(self.ccbp_global_ignore)
-        self.ccbp_global_create = QtWidgets.QAction("Create applets", self.table)
+        self.ccbp_global_create = QtGui.QAction("Create applets", self.table)
         self.ccbp_global_create.setCheckable(True)
         self.ccbp_global_create.setChecked(True)
         ccbp_global_menu.addAction(self.ccbp_global_create)
         actiongroup.addAction(self.ccbp_global_create)
-        self.ccbp_global_enable = QtWidgets.QAction("Create and enable/disable applets",
-                                                    self.table)
+        self.ccbp_global_enable = QtGui.QAction("Create and enable/disable applets",
+                                                self.table)
         self.ccbp_global_enable.setCheckable(True)
         ccbp_global_menu.addAction(self.ccbp_global_enable)
         actiongroup.addAction(self.ccbp_global_enable)
-        ccbp_global_action = QtWidgets.QAction("Global CCB policy", self.table)
+        ccbp_global_action = QtGui.QAction("Global CCB policy", self.table)
         ccbp_global_action.setMenu(ccbp_global_menu)
         self.table.addAction(ccbp_global_action)
 
@@ -196,7 +196,7 @@ class AppletsCCBDock(applets.AppletsDock):
                 logger.debug("Applet %s already exists and no update required", name)
 
         if ccbp == "enable":
-            applet.setCheckState(0, QtCore.Qt.Checked)
+            applet.setCheckState(0, QtCore.Qt.CheckState.Checked)
 
     def ccb_disable_applet(self, name, group=None):
         """Disables an applet.
@@ -216,7 +216,7 @@ class AppletsCCBDock(applets.AppletsDock):
             return
         parent, applet = self.locate_applet(name, group, False)
         if applet is not None:
-            applet.setCheckState(0, QtCore.Qt.Unchecked)
+            applet.setCheckState(0, QtCore.Qt.CheckState.Unchecked)
 
     def ccb_disable_applet_group(self, group):
         """Disables all the applets in a group.
@@ -246,7 +246,7 @@ class AppletsCCBDock(applets.AppletsDock):
                 return
             else:
                 wi = nwi
-        wi.setCheckState(0, QtCore.Qt.Unchecked)
+        wi.setCheckState(0, QtCore.Qt.CheckState.Unchecked)
 
     def ccb_notify(self, message):
         try:

artiq/dashboard/datasets.py

@@ -2,13 +2,12 @@ import asyncio
 import logging
 
 import numpy as np
-from PyQt5 import QtCore, QtWidgets
+from PyQt6 import QtCore, QtGui, QtWidgets
 from sipyco import pyon
 
 from artiq.tools import scale_from_metadata, short_format, exc_to_warning
-from artiq.gui.tools import LayoutWidget, QRecursiveFilterProxyModel
+from artiq.gui.tools import LayoutWidget
 from artiq.gui.models import DictSyncTreeSepModel
-from artiq.gui.scientific_spinbox import ScientificSpinBox
 
 
 logger = logging.getLogger(__name__)
@@ -64,11 +63,11 @@ class CreateEditDialog(QtWidgets.QDialog):
         self.cancel = QtWidgets.QPushButton('&Cancel')
         self.buttons = QtWidgets.QDialogButtonBox(self)
         self.buttons.addButton(
-            self.ok, QtWidgets.QDialogButtonBox.AcceptRole)
+            self.ok, QtWidgets.QDialogButtonBox.ButtonRole.AcceptRole)
         self.buttons.addButton(
-            self.cancel, QtWidgets.QDialogButtonBox.RejectRole)
+            self.cancel, QtWidgets.QDialogButtonBox.ButtonRole.RejectRole)
         grid.setRowStretch(6, 1)
-        grid.addWidget(self.buttons, 7, 0, 1, 3, alignment=QtCore.Qt.AlignHCenter)
+        grid.addWidget(self.buttons, 7, 0, 1, 3, alignment=QtCore.Qt.AlignmentFlag.AlignHCenter)
         self.buttons.accepted.connect(self.accept)
         self.buttons.rejected.connect(self.reject)
 
@@ -81,8 +80,7 @@ class CreateEditDialog(QtWidgets.QDialog):
             t = value.dtype if value is np.ndarray else type(value)
             if scale != 1 and np.issubdtype(t, np.number):
                 # degenerates to float type
-                value_edit_string = self.value_to_edit_string(
-                        np.float64(value / scale))
+                value_edit_string = self.value_to_edit_string(value / scale)
             self.unit_widget.setText(metadata.get('unit', ''))
             self.scale_widget.setText(str(metadata.get('scale', '')))
             self.precision_widget.setText(str(metadata.get('precision', '')))
@@ -109,11 +107,13 @@ class CreateEditDialog(QtWidgets.QDialog):
         t = value.dtype if value is np.ndarray else type(value)
         if scale != 1 and np.issubdtype(t, np.number):
             # degenerates to float type
-            value = np.float64(value * scale)
+            value = float(value * scale)
         if self.key and self.key != key:
-            asyncio.ensure_future(exc_to_warning(rename(self.key, key, value, metadata, persist, self.dataset_ctl)))
+            asyncio.ensure_future(exc_to_warning(rename(self.key, key, value, metadata, persist,
+                                                        self.dataset_ctl)))
         else:
-            asyncio.ensure_future(exc_to_warning(self.dataset_ctl.set(key, value, metadata=metadata, persist=persist)))
+            asyncio.ensure_future(exc_to_warning(self.dataset_ctl.set(key, value, metadata=metadata,
+                                                                      persist=persist)))
         self.key = key
         QtWidgets.QDialog.accept(self)
 
@@ -125,7 +125,7 @@ class CreateEditDialog(QtWidgets.QDialog):
             pyon.encode(result)
         except:
             pixmap = self.style().standardPixmap(
-                QtWidgets.QStyle.SP_MessageBoxWarning)
+                QtWidgets.QStyle.StandardPixmap.SP_MessageBoxWarning)
             self.data_type.setPixmap(pixmap)
             self.ok.setEnabled(False)
         else:
@@ -163,7 +163,7 @@ class CreateEditDialog(QtWidgets.QDialog):
 
 
 class Model(DictSyncTreeSepModel):
-    def __init__(self,  init):
+    def __init__(self, init):
         DictSyncTreeSepModel.__init__(self, ".",
                                       ["Dataset", "Persistent", "Value"],
                                       init)
@@ -181,8 +181,8 @@ class DatasetsDock(QtWidgets.QDockWidget):
     def __init__(self, dataset_sub, dataset_ctl):
         QtWidgets.QDockWidget.__init__(self, "Datasets")
         self.setObjectName("Datasets")
-        self.setFeatures(QtWidgets.QDockWidget.DockWidgetMovable |
-                         QtWidgets.QDockWidget.DockWidgetFloatable)
+        self.setFeatures(QtWidgets.QDockWidget.DockWidgetFeature.DockWidgetMovable |
+                         QtWidgets.QDockWidget.DockWidgetFeature.DockWidgetFloatable)
         self.dataset_ctl = dataset_ctl
 
         grid = LayoutWidget()
@@ -194,27 +194,27 @@ class DatasetsDock(QtWidgets.QDockWidget):
         grid.addWidget(self.search, 0, 0)
 
         self.table = QtWidgets.QTreeView()
-        self.table.setSelectionBehavior(QtWidgets.QAbstractItemView.SelectRows)
+        self.table.setSelectionBehavior(QtWidgets.QAbstractItemView.SelectionBehavior.SelectRows)
         self.table.setSelectionMode(
-            QtWidgets.QAbstractItemView.SingleSelection)
+            QtWidgets.QAbstractItemView.SelectionMode.SingleSelection)
         grid.addWidget(self.table, 1, 0)
 
-        self.table.setContextMenuPolicy(QtCore.Qt.ActionsContextMenu)
-        create_action = QtWidgets.QAction("New dataset", self.table)
+        self.table.setContextMenuPolicy(QtCore.Qt.ContextMenuPolicy.ActionsContextMenu)
+        create_action = QtGui.QAction("New dataset", self.table)
         create_action.triggered.connect(self.create_clicked)
         create_action.setShortcut("CTRL+N")
-        create_action.setShortcutContext(QtCore.Qt.WidgetShortcut)
+        create_action.setShortcutContext(QtCore.Qt.ShortcutContext.WidgetShortcut)
         self.table.addAction(create_action)
-        edit_action = QtWidgets.QAction("Edit dataset", self.table)
+        edit_action = QtGui.QAction("Edit dataset", self.table)
         edit_action.triggered.connect(self.edit_clicked)
         edit_action.setShortcut("RETURN")
-        edit_action.setShortcutContext(QtCore.Qt.WidgetShortcut)
+        edit_action.setShortcutContext(QtCore.Qt.ShortcutContext.WidgetShortcut)
         self.table.doubleClicked.connect(self.edit_clicked)
         self.table.addAction(edit_action)
-        delete_action = QtWidgets.QAction("Delete dataset", self.table)
+        delete_action = QtGui.QAction("Delete dataset", self.table)
         delete_action.triggered.connect(self.delete_clicked)
         delete_action.setShortcut("DELETE")
-        delete_action.setShortcutContext(QtCore.Qt.WidgetShortcut)
+        delete_action.setShortcutContext(QtCore.Qt.ShortcutContext.WidgetShortcut)
         self.table.addAction(delete_action)
 
         self.table_model = Model(dict())
@@ -227,7 +227,8 @@ class DatasetsDock(QtWidgets.QDockWidget):
 
     def set_model(self, model):
         self.table_model = model
-        self.table_model_filter = QRecursiveFilterProxyModel()
+        self.table_model_filter = QtCore.QSortFilterProxyModel()
+        self.table_model_filter.setRecursiveFilteringEnabled(True)
         self.table_model_filter.setSourceModel(self.table_model)
         self.table.setModel(self.table_model_filter)
 

artiq/dashboard/experiments.py

@@ -4,15 +4,14 @@ import os
 from functools import partial
 from collections import OrderedDict
 
-from PyQt5 import QtCore, QtGui, QtWidgets
+from PyQt6 import QtCore, QtGui, QtWidgets
 import h5py
 
 from sipyco import pyon
 
-from artiq.gui.entries import procdesc_to_entry, ScanEntry
+from artiq.gui.entries import procdesc_to_entry, EntryTreeWidget
 from artiq.gui.fuzzy_select import FuzzySelectWidget
-from artiq.gui.tools import (LayoutWidget, WheelFilter, 
-                             log_level_to_name, get_open_file_name)
+from artiq.gui.tools import (LayoutWidget, log_level_to_name, get_open_file_name)
 from artiq.tools import parse_devarg_override, unparse_devarg_override
 
 
@@ -25,108 +24,32 @@ logger = logging.getLogger(__name__)
 # 2. file:<class name>@<file name>
 
 
-class _ArgumentEditor(QtWidgets.QTreeWidget):
+class _ArgumentEditor(EntryTreeWidget):
     def __init__(self, manager, dock, expurl):
         self.manager = manager
         self.expurl = expurl
 
-        QtWidgets.QTreeWidget.__init__(self)
-        self.setColumnCount(3)
-        self.header().setStretchLastSection(False)
-        if hasattr(self.header(), "setSectionResizeMode"):
-            set_resize_mode = self.header().setSectionResizeMode
-        else:
-            set_resize_mode = self.header().setResizeMode
-        set_resize_mode(0, QtWidgets.QHeaderView.ResizeToContents)
-        set_resize_mode(1, QtWidgets.QHeaderView.Stretch)
-        set_resize_mode(2, QtWidgets.QHeaderView.ResizeToContents)
-        self.header().setVisible(False)
-        self.setSelectionMode(self.NoSelection)
-        self.setHorizontalScrollMode(self.ScrollPerPixel)
-        self.setVerticalScrollMode(self.ScrollPerPixel)
-
-        self.setStyleSheet("QTreeWidget {background: " +
-                           self.palette().midlight().color().name() + " ;}")
-
-        self.viewport().installEventFilter(WheelFilter(self.viewport(), True))
-
-        self._groups = dict()
-        self._arg_to_widgets = dict()
+        EntryTreeWidget.__init__(self)
 
         arguments = self.manager.get_submission_arguments(self.expurl)
 
         if not arguments:
-            self.addTopLevelItem(QtWidgets.QTreeWidgetItem(["No arguments"]))
+            self.insertTopLevelItem(0, QtWidgets.QTreeWidgetItem(["No arguments"]))
 
-        gradient = QtGui.QLinearGradient(
-            0, 0, 0, QtGui.QFontMetrics(self.font()).lineSpacing()*2.5)
-        gradient.setColorAt(0, self.palette().base().color())
-        gradient.setColorAt(1, self.palette().midlight().color())
         for name, argument in arguments.items():
-            widgets = dict()
-            self._arg_to_widgets[name] = widgets
+            self.set_argument(name, argument)
 
-            entry = procdesc_to_entry(argument["desc"])(argument)
-            widget_item = QtWidgets.QTreeWidgetItem([name])
-            if argument["tooltip"]:
-                widget_item.setToolTip(0, argument["tooltip"])
-            widgets["entry"] = entry
-            widgets["widget_item"] = widget_item
+        self.quickStyleClicked.connect(dock.submit_clicked)
 
-            for col in range(3):
-                widget_item.setBackground(col, gradient)
-            font = widget_item.font(0)
-            font.setBold(True)
-            widget_item.setFont(0, font)
-
-            if argument["group"] is None:
-                self.addTopLevelItem(widget_item)
-            else:
-                self._get_group(argument["group"]).addChild(widget_item)
-            fix_layout = LayoutWidget()
-            widgets["fix_layout"] = fix_layout
-            fix_layout.addWidget(entry)
-            self.setItemWidget(widget_item, 1, fix_layout)
-            recompute_argument = QtWidgets.QToolButton()
-            recompute_argument.setToolTip("Re-run the experiment's build "
-                                          "method and take the default value")
-            recompute_argument.setIcon(
-                QtWidgets.QApplication.style().standardIcon(
-                    QtWidgets.QStyle.SP_BrowserReload))
-            recompute_argument.clicked.connect(
-                partial(self._recompute_argument_clicked, name))
-
-            tool_buttons = LayoutWidget()
-            tool_buttons.addWidget(recompute_argument, 1)
-
-            disable_other_scans = QtWidgets.QToolButton()
-            widgets["disable_other_scans"] = disable_other_scans
-            disable_other_scans.setIcon(
-                QtWidgets.QApplication.style().standardIcon(
-                    QtWidgets.QStyle.SP_DialogResetButton))
-            disable_other_scans.setToolTip("Disable all other scans in "
-                                           "this experiment")
-            disable_other_scans.clicked.connect(
-                partial(self._disable_other_scans, name))
-            tool_buttons.layout.setRowStretch(0, 1)
-            tool_buttons.layout.setRowStretch(3, 1)
-            tool_buttons.addWidget(disable_other_scans, 2)
-            if not isinstance(entry, ScanEntry):
-                disable_other_scans.setVisible(False)
-
-            self.setItemWidget(widget_item, 2, tool_buttons)
-
-        widget_item = QtWidgets.QTreeWidgetItem()
-        self.addTopLevelItem(widget_item)
         recompute_arguments = QtWidgets.QPushButton("Recompute all arguments")
         recompute_arguments.setIcon(
             QtWidgets.QApplication.style().standardIcon(
-                QtWidgets.QStyle.SP_BrowserReload))
+                QtWidgets.QStyle.StandardPixmap.SP_BrowserReload))
         recompute_arguments.clicked.connect(dock._recompute_arguments_clicked)
 
         load_hdf5 = QtWidgets.QPushButton("Load HDF5")
         load_hdf5.setIcon(QtWidgets.QApplication.style().standardIcon(
-            QtWidgets.QStyle.SP_DialogOpenButton))
+            QtWidgets.QStyle.StandardPixmap.SP_DialogOpenButton))
         load_hdf5.clicked.connect(dock._load_hdf5_clicked)
 
         buttons = LayoutWidget()
@@ -136,41 +59,10 @@ class _ArgumentEditor(QtWidgets.QTreeWidget):
         buttons.layout.setColumnStretch(1, 0)
         buttons.layout.setColumnStretch(2, 0)
         buttons.layout.setColumnStretch(3, 1)
-        self.setItemWidget(widget_item, 1, buttons)
+        self.setItemWidget(self.bottom_item, 1, buttons)
 
-    def _get_group(self, name):
-        if name in self._groups:
-            return self._groups[name]
-        group = QtWidgets.QTreeWidgetItem([name])
-        for col in range(3):
-            group.setBackground(col, self.palette().mid())
-            group.setForeground(col, self.palette().brightText())
-            font = group.font(col)
-            font.setBold(True)
-            group.setFont(col, font)
-        self.addTopLevelItem(group)
-        self._groups[name] = group
-        return group
-
-    def update_argument(self, name, argument):
-        widgets = self._arg_to_widgets[name]
-
-        # Qt needs a setItemWidget() to handle layout correctly,
-        # simply replacing the entry inside the LayoutWidget
-        # results in a bug.
-
-        widgets["entry"].deleteLater()
-        widgets["entry"] = procdesc_to_entry(argument["desc"])(argument)
-        widgets["disable_other_scans"].setVisible(
-            isinstance(widgets["entry"], ScanEntry))
-        widgets["fix_layout"].deleteLater()
-        widgets["fix_layout"] = LayoutWidget()
-        widgets["fix_layout"].addWidget(widgets["entry"])
-        self.setItemWidget(widgets["widget_item"], 1, widgets["fix_layout"])
-        self.updateGeometries()
-
-    def _recompute_argument_clicked(self, name):
-        asyncio.ensure_future(self._recompute_argument(name))
+    def reset_entry(self, key):
+        asyncio.ensure_future(self._recompute_argument(key))
 
     async def _recompute_argument(self, name):
         try:
@@ -187,30 +79,6 @@ class _ArgumentEditor(QtWidgets.QTreeWidget):
         argument["state"] = state
         self.update_argument(name, argument)
 
-    def _disable_other_scans(self, current_name):
-        for name, widgets in self._arg_to_widgets.items():
-            if (name != current_name
-                    and isinstance(widgets["entry"], ScanEntry)):
-                widgets["entry"].disable()
-
-    def save_state(self):
-        expanded = []
-        for k, v in self._groups.items():
-            if v.isExpanded():
-                expanded.append(k)
-        return {
-            "expanded": expanded,
-            "scroll": self.verticalScrollBar().value()
-        }
-
-    def restore_state(self, state):
-        for e in state["expanded"]:
-            try:
-                self._groups[e].setExpanded(True)
-            except KeyError:
-                pass
-        self.verticalScrollBar().setValue(state["scroll"])
-
     # Hooks that allow user-supplied argument editors to react to imminent user
     # actions. Here, we always keep the manager-stored submission arguments
     # up-to-date, so no further action is required.
@@ -230,10 +98,10 @@ class _ExperimentDock(QtWidgets.QMdiSubWindow):
     def __init__(self, manager, expurl):
         QtWidgets.QMdiSubWindow.__init__(self)
         qfm = QtGui.QFontMetrics(self.font())
-        self.resize(100*qfm.averageCharWidth(), 30*qfm.lineSpacing())
+        self.resize(100 * qfm.averageCharWidth(), 30 * qfm.lineSpacing())
         self.setWindowTitle(expurl)
         self.setWindowIcon(QtWidgets.QApplication.style().standardIcon(
-            QtWidgets.QStyle.SP_FileDialogContentsView))
+            QtWidgets.QStyle.StandardPixmap.SP_FileDialogContentsView))
 
         self.layout = QtWidgets.QGridLayout()
         top_widget = QtWidgets.QWidget()
@@ -263,17 +131,17 @@ class _ExperimentDock(QtWidgets.QMdiSubWindow):
             datetime.setDate(QtCore.QDate.currentDate())
         else:
             datetime.setDateTime(QtCore.QDateTime.fromMSecsSinceEpoch(
-                int(scheduling["due_date"]*1000)))
+                int(scheduling["due_date"] * 1000)))
         datetime_en.setChecked(scheduling["due_date"] is not None)
 
         def update_datetime(dt):
-            scheduling["due_date"] = dt.toMSecsSinceEpoch()/1000
+            scheduling["due_date"] = dt.toMSecsSinceEpoch() / 1000
             datetime_en.setChecked(True)
         datetime.dateTimeChanged.connect(update_datetime)
 
         def update_datetime_en(checked):
             if checked:
-                due_date = datetime.dateTime().toMSecsSinceEpoch()/1000
+                due_date = datetime.dateTime().toMSecsSinceEpoch() / 1000
             else:
                 due_date = None
             scheduling["due_date"] = due_date
@@ -349,9 +217,10 @@ class _ExperimentDock(QtWidgets.QMdiSubWindow):
             repo_rev = QtWidgets.QLineEdit()
             repo_rev.setPlaceholderText("current")
             repo_rev.setClearButtonEnabled(True)
-            repo_rev_label = QtWidgets.QLabel("Revision:")
+            repo_rev_label = QtWidgets.QLabel("Rev / ref:")
             repo_rev_label.setToolTip("Experiment repository revision "
-                                      "(commit ID) to use")
+                                      "(commit ID) or reference (branch "
+                                      "or tag) to use")
             self.layout.addWidget(repo_rev_label, 3, 2)
             self.layout.addWidget(repo_rev, 3, 3)
 
@@ -368,21 +237,21 @@ class _ExperimentDock(QtWidgets.QMdiSubWindow):
 
         submit = QtWidgets.QPushButton("Submit")
         submit.setIcon(QtWidgets.QApplication.style().standardIcon(
-                QtWidgets.QStyle.SP_DialogOkButton))
+                QtWidgets.QStyle.StandardPixmap.SP_DialogOkButton))
         submit.setToolTip("Schedule the experiment (Ctrl+Return)")
         submit.setShortcut("CTRL+RETURN")
-        submit.setSizePolicy(QtWidgets.QSizePolicy.Expanding,
-                             QtWidgets.QSizePolicy.Expanding)
+        submit.setSizePolicy(QtWidgets.QSizePolicy.Policy.Expanding,
+                             QtWidgets.QSizePolicy.Policy.Expanding)
         self.layout.addWidget(submit, 1, 4, 2, 1)
         submit.clicked.connect(self.submit_clicked)
 
         reqterm = QtWidgets.QPushButton("Terminate instances")
         reqterm.setIcon(QtWidgets.QApplication.style().standardIcon(
-                QtWidgets.QStyle.SP_DialogCancelButton))
+                QtWidgets.QStyle.StandardPixmap.SP_DialogCancelButton))
         reqterm.setToolTip("Request termination of instances (Ctrl+Backspace)")
         reqterm.setShortcut("CTRL+BACKSPACE")
-        reqterm.setSizePolicy(QtWidgets.QSizePolicy.Expanding,
-                              QtWidgets.QSizePolicy.Expanding)
+        reqterm.setSizePolicy(QtWidgets.QSizePolicy.Policy.Expanding,
+                              QtWidgets.QSizePolicy.Policy.Expanding)
         self.layout.addWidget(reqterm, 3, 4)
         reqterm.clicked.connect(self.reqterm_clicked)
 
@@ -420,8 +289,7 @@ class _ExperimentDock(QtWidgets.QMdiSubWindow):
         arginfo = expdesc["arginfo"]
         for k, v in overrides.items():
             # Some values (e.g. scans) may have multiple defaults in a list
-            if ("default" in arginfo[k][0]
-                    and isinstance(arginfo[k][0]["default"], list)):
+            if ("default" in arginfo[k][0] and isinstance(arginfo[k][0]["default"], list)):
                 arginfo[k][0]["default"].insert(0, v)
             else:
                 arginfo[k][0]["default"] = v
@@ -432,13 +300,13 @@ class _ExperimentDock(QtWidgets.QMdiSubWindow):
 
         editor_class = self.manager.get_argument_editor_class(self.expurl)
         self.argeditor = editor_class(self.manager, self, self.expurl)
-        self.argeditor.restore_state(argeditor_state)
         self.layout.addWidget(self.argeditor, 0, 0, 1, 5)
+        self.argeditor.restore_state(argeditor_state)
 
     def contextMenuEvent(self, event):
         menu = QtWidgets.QMenu(self)
         reset_sched = menu.addAction("Reset scheduler settings")
-        action = menu.exec_(self.mapToGlobal(event.pos()))
+        action = menu.exec(self.mapToGlobal(event.pos()))
         if action == reset_sched:
             asyncio.ensure_future(self._recompute_sched_options_task())
 
@@ -486,9 +354,9 @@ class _ExperimentDock(QtWidgets.QMdiSubWindow):
                     unparse_devarg_override(expid["devarg_override"]))
             self.log_level.setCurrentIndex(log_levels.index(
                 log_level_to_name(expid["log_level"])))
-            if ("repo_rev" in expid and
-                    expid["repo_rev"] != "N/A" and
-                    hasattr(self, "repo_rev")):
+            if "repo_rev" in expid and \
+               expid["repo_rev"] != "N/A" and \
+               hasattr(self, "repo_rev"):
                 self.repo_rev.setText(expid["repo_rev"])
         except:
             logger.error("Could not set submission options from HDF5 expid",
@@ -555,7 +423,7 @@ class _QuickOpenDialog(QtWidgets.QDialog):
         QtWidgets.QDialog.done(self, r)
 
     def _open_experiment(self, exp_name, modifiers):
-        if modifiers & QtCore.Qt.ControlModifier:
+        if modifiers & QtCore.Qt.KeyboardModifier.ControlModifier:
             try:
                 self.manager.submit(exp_name)
             except:
@@ -599,10 +467,10 @@ class ExperimentManager:
         self.open_experiments = dict()
 
         self.is_quick_open_shown = False
-        quick_open_shortcut = QtWidgets.QShortcut(
-            QtCore.Qt.CTRL + QtCore.Qt.Key_P,
+        quick_open_shortcut = QtGui.QShortcut(
+            QtGui.QKeySequence("Ctrl+P"),
             main_window)
-        quick_open_shortcut.setContext(QtCore.Qt.ApplicationShortcut)
+        quick_open_shortcut.setContext(QtCore.Qt.ShortcutContext.ApplicationShortcut)
         quick_open_shortcut.activated.connect(self.show_quick_open)
 
     def set_dataset_model(self, model):
@@ -678,7 +546,7 @@ class ExperimentManager:
         self.submission_arguments[expurl] = arguments
         self.argument_ui_names[expurl] = ui_name
         return arguments
-    
+
     def set_argument_value(self, expurl, name, value):
         try:
             argument = self.submission_arguments[expurl][name]
@@ -691,7 +559,8 @@ class ExperimentManager:
             if expurl in self.open_experiments.keys():
                 self.open_experiments[expurl].argeditor.update_argument(name, argument)
         except:
-            logger.warn("Failed to set value for argument \"{}\" in experiment: {}.".format(name, expurl), exc_info=1)
+            logger.warn("Failed to set value for argument \"{}\" in experiment: {}."
+                        .format(name, expurl), exc_info=1)
 
     def get_submission_arguments(self, expurl):
         if expurl in self.submission_arguments:
@@ -701,8 +570,8 @@ class ExperimentManager:
                 raise ValueError("Submission arguments must be preinitialized "
                                  "when not using repository")
             class_desc = self.explist[expurl[5:]]
-            return self.initialize_submission_arguments(expurl,
-                class_desc["arginfo"], class_desc.get("argument_ui", None))
+            return self.initialize_submission_arguments(expurl, class_desc["arginfo"],
+                                                        class_desc.get("argument_ui", None))
 
     def open_experiment(self, expurl):
         if expurl in self.open_experiments:
@@ -720,7 +589,7 @@ class ExperimentManager:
             del self.submission_arguments[expurl]
             dock = _ExperimentDock(self, expurl)
         self.open_experiments[expurl] = dock
-        dock.setAttribute(QtCore.Qt.WA_DeleteOnClose)
+        dock.setAttribute(QtCore.Qt.WidgetAttribute.WA_DeleteOnClose)
         self.main_window.centralWidget().addSubWindow(dock)
         dock.show()
         dock.sigClosed.connect(partial(self.on_dock_closed, expurl))
@@ -739,8 +608,13 @@ class ExperimentManager:
         del self.open_experiments[expurl]
 
     async def _submit_task(self, expurl, *args):
-        rid = await self.schedule_ctl.submit(*args)
-        logger.info("Submitted '%s', RID is %d", expurl, rid)
+        try:
+            rid = await self.schedule_ctl.submit(*args)
+        except KeyError:
+            expid = args[1]
+            logger.error("Submission failed - revision \"%s\" was not found", expid["repo_rev"])
+        else:
+            logger.info("Submitted '%s', RID is %d", expurl, rid)
 
     def submit(self, expurl):
         file, class_name, _ = self.resolve_expurl(expurl)
@@ -797,9 +671,9 @@ class ExperimentManager:
                 repo_match = "repo_rev" in expid
             else:
                 repo_match = "repo_rev" not in expid
-            if (repo_match and
-                    ("file" in expid and expid["file"] == file) and
-                    expid["class_name"] == class_name):
+            if repo_match and \
+               ("file" in expid and expid["file"] == file) and \
+               expid["class_name"] == class_name:
                 rids.append(rid)
         asyncio.ensure_future(self._request_term_multiple(rids))
 
@@ -819,7 +693,7 @@ class ExperimentManager:
         for class_name, class_desc in description.items():
             expurl = "file:{}@{}".format(class_name, file)
             self.initialize_submission_arguments(expurl, class_desc["arginfo"],
-                class_desc.get("argument_ui", None))
+                                                 class_desc.get("argument_ui", None))
             if expurl in self.open_experiments:
                 self.open_experiments[expurl].close()
             self.open_experiment(expurl)
@@ -853,6 +727,7 @@ class ExperimentManager:
 
         self.is_quick_open_shown = True
         dialog = _QuickOpenDialog(self)
+
         def closed():
             self.is_quick_open_shown = False
         dialog.closed.connect(closed)

artiq/dashboard/explorer.py

@@ -3,7 +3,7 @@ import logging
 import re
 from functools import partial
 
-from PyQt5 import QtCore, QtWidgets
+from PyQt6 import QtCore, QtGui, QtWidgets
 
 from artiq.gui.tools import LayoutWidget
 from artiq.gui.models import DictSyncTreeSepModel
@@ -37,7 +37,8 @@ class _OpenFileDialog(QtWidgets.QDialog):
         self.file_list.doubleClicked.connect(self.accept)
 
         buttons = QtWidgets.QDialogButtonBox(
-            QtWidgets.QDialogButtonBox.Ok | QtWidgets.QDialogButtonBox.Cancel)
+            QtWidgets.QDialogButtonBox.StandardButton.Ok |
+            QtWidgets.QDialogButtonBox.StandardButton.Cancel)
         grid.addWidget(buttons, 2, 0, 1, 2)
         buttons.accepted.connect(self.accept)
         buttons.rejected.connect(self.reject)
@@ -52,7 +53,7 @@ class _OpenFileDialog(QtWidgets.QDialog):
         item = QtWidgets.QListWidgetItem()
         item.setText("..")
         item.setIcon(QtWidgets.QApplication.style().standardIcon(
-            QtWidgets.QStyle.SP_FileDialogToParent))
+            QtWidgets.QStyle.StandardPixmap.SP_FileDialogToParent))
         self.file_list.addItem(item)
 
         try:
@@ -64,9 +65,9 @@ class _OpenFileDialog(QtWidgets.QDialog):
             return
         for name in sorted(contents, key=lambda x: (x[-1] not in "\\/", x)):
             if name[-1] in "\\/":
-                icon = QtWidgets.QStyle.SP_DirIcon
+                icon = QtWidgets.QStyle.StandardPixmap.SP_DirIcon
             else:
-                icon = QtWidgets.QStyle.SP_FileIcon
+                icon = QtWidgets.QStyle.StandardPixmap.SP_FileIcon
                 if name[-3:] != ".py":
                     continue
             item = QtWidgets.QListWidgetItem()
@@ -94,7 +95,7 @@ class _OpenFileDialog(QtWidgets.QDialog):
                         else:
                             break
                     self.explorer.current_directory = \
-                        self.explorer.current_directory[:idx+1]
+                        self.explorer.current_directory[:idx + 1]
                     if self.explorer.current_directory == "/":
                         self.explorer.current_directory = ""
                 asyncio.ensure_future(self.refresh_view())
@@ -103,6 +104,7 @@ class _OpenFileDialog(QtWidgets.QDialog):
                 asyncio.ensure_future(self.refresh_view())
             else:
                 file = self.explorer.current_directory + selected
+
                 async def open_task():
                     try:
                         await self.exp_manager.open_file(file)
@@ -162,8 +164,8 @@ class ExplorerDock(QtWidgets.QDockWidget):
                  schedule_ctl, experiment_db_ctl, device_db_ctl):
         QtWidgets.QDockWidget.__init__(self, "Explorer")
         self.setObjectName("Explorer")
-        self.setFeatures(QtWidgets.QDockWidget.DockWidgetMovable |
-                         QtWidgets.QDockWidget.DockWidgetFloatable)
+        self.setFeatures(QtWidgets.QDockWidget.DockWidgetFeature.DockWidgetMovable |
+                         QtWidgets.QDockWidget.DockWidgetFeature.DockWidgetFloatable)
 
         top_widget = LayoutWidget()
         self.setWidget(top_widget)
@@ -174,7 +176,7 @@ class ExplorerDock(QtWidgets.QDockWidget):
 
         top_widget.addWidget(QtWidgets.QLabel("Revision:"), 0, 0)
         self.revision = QtWidgets.QLabel()
-        self.revision.setTextInteractionFlags(QtCore.Qt.TextSelectableByMouse)
+        self.revision.setTextInteractionFlags(QtCore.Qt.TextInteractionFlag.TextSelectableByMouse)
         top_widget.addWidget(self.revision, 0, 1)
 
         self.stack = QtWidgets.QStackedWidget()
@@ -186,14 +188,14 @@ class ExplorerDock(QtWidgets.QDockWidget):
 
         self.el = QtWidgets.QTreeView()
         self.el.setHeaderHidden(True)
-        self.el.setSelectionBehavior(QtWidgets.QAbstractItemView.SelectItems)
+        self.el.setSelectionBehavior(QtWidgets.QAbstractItemView.SelectionBehavior.SelectItems)
         self.el.doubleClicked.connect(
             partial(self.expname_action, "open_experiment"))
         self.el_buttons.addWidget(self.el, 0, 0, colspan=2)
 
         open = QtWidgets.QPushButton("Open")
         open.setIcon(QtWidgets.QApplication.style().standardIcon(
-            QtWidgets.QStyle.SP_DialogOpenButton))
+            QtWidgets.QStyle.StandardPixmap.SP_DialogOpenButton))
         open.setToolTip("Open the selected experiment (Return)")
         self.el_buttons.addWidget(open, 1, 0)
         open.clicked.connect(
@@ -201,7 +203,7 @@ class ExplorerDock(QtWidgets.QDockWidget):
 
         submit = QtWidgets.QPushButton("Submit")
         submit.setIcon(QtWidgets.QApplication.style().standardIcon(
-            QtWidgets.QStyle.SP_DialogOkButton))
+            QtWidgets.QStyle.StandardPixmap.SP_DialogOkButton))
         submit.setToolTip("Schedule the selected experiment (Ctrl+Return)")
         self.el_buttons.addWidget(submit, 1, 1)
         submit.clicked.connect(
@@ -210,55 +212,56 @@ class ExplorerDock(QtWidgets.QDockWidget):
         self.explist_model = Model(dict())
         explist_sub.add_setmodel_callback(self.set_model)
 
-        self.el.setContextMenuPolicy(QtCore.Qt.ActionsContextMenu)
-        open_action = QtWidgets.QAction("Open", self.el)
+        self.el.setContextMenuPolicy(QtCore.Qt.ContextMenuPolicy.ActionsContextMenu)
+        open_action = QtGui.QAction("Open", self.el)
         open_action.triggered.connect(
             partial(self.expname_action, "open_experiment"))
         open_action.setShortcut("RETURN")
-        open_action.setShortcutContext(QtCore.Qt.WidgetShortcut)
+        open_action.setShortcutContext(QtCore.Qt.ShortcutContext.WidgetShortcut)
         self.el.addAction(open_action)
-        submit_action = QtWidgets.QAction("Submit", self.el)
+        submit_action = QtGui.QAction("Submit", self.el)
         submit_action.triggered.connect(
             partial(self.expname_action, "submit"))
         submit_action.setShortcut("CTRL+RETURN")
-        submit_action.setShortcutContext(QtCore.Qt.WidgetShortcut)
+        submit_action.setShortcutContext(QtCore.Qt.ShortcutContext.WidgetShortcut)
         self.el.addAction(submit_action)
-        reqterm_action = QtWidgets.QAction("Request termination of instances", self.el)
+        reqterm_action = QtGui.QAction("Request termination of instances", self.el)
         reqterm_action.triggered.connect(
             partial(self.expname_action, "request_inst_term"))
         reqterm_action.setShortcut("CTRL+BACKSPACE")
-        reqterm_action.setShortcutContext(QtCore.Qt.WidgetShortcut)
+        reqterm_action.setShortcutContext(QtCore.Qt.ShortcutContext.WidgetShortcut)
         self.el.addAction(reqterm_action)
 
-        set_shortcut_menu = QtWidgets.QMenu()
+        set_shortcut_menu = QtWidgets.QMenu(self.el)
         for i in range(12):
-            action = QtWidgets.QAction("F" + str(i+1), self.el)
+            action = QtGui.QAction("F" + str(i+1), self.el)
             action.triggered.connect(partial(self.set_shortcut, i))
             set_shortcut_menu.addAction(action)
 
-        set_shortcut_action = QtWidgets.QAction("Set shortcut", self.el)
+        set_shortcut_action = QtGui.QAction("Set shortcut", self.el)
         set_shortcut_action.setMenu(set_shortcut_menu)
         self.el.addAction(set_shortcut_action)
 
-        sep = QtWidgets.QAction(self.el)
+        sep = QtGui.QAction(self.el)
         sep.setSeparator(True)
         self.el.addAction(sep)
 
-        scan_repository_action = QtWidgets.QAction("Scan repository HEAD",
+        scan_repository_action = QtGui.QAction("Scan repository HEAD",
                                                    self.el)
+
         def scan_repository():
             asyncio.ensure_future(experiment_db_ctl.scan_repository_async())
         scan_repository_action.triggered.connect(scan_repository)
         self.el.addAction(scan_repository_action)
 
-        scan_ddb_action = QtWidgets.QAction("Scan device database", self.el)
+        scan_ddb_action = QtGui.QAction("Scan device database", self.el)
         def scan_ddb():
             asyncio.ensure_future(device_db_ctl.scan())
         scan_ddb_action.triggered.connect(scan_ddb)
         self.el.addAction(scan_ddb_action)
 
         self.current_directory = ""
-        open_file_action = QtWidgets.QAction("Open file outside repository",
+        open_file_action = QtGui.QAction("Open file outside repository",
                                              self.el)
         open_file_action.triggered.connect(
             lambda: _OpenFileDialog(self, self.exp_manager,
@@ -292,7 +295,7 @@ class ExplorerDock(QtWidgets.QDockWidget):
         if expname is not None:
             expurl = "repo:" + expname
             self.d_shortcuts.set_shortcut(nr, expurl)
-            logger.info("Set shortcut F%d to '%s'", nr+1, expurl)
+            logger.info("Set shortcut F%d to '%s'", nr + 1, expurl)
 
     def update_scanning(self, scanning):
         if scanning:

artiq/dashboard/interactive_args.py

@@ -0,0 +1,158 @@
+import logging
+import asyncio
+
+from PyQt6 import QtCore, QtWidgets, QtGui
+
+from artiq.gui.models import DictSyncModel
+from artiq.gui.entries import EntryTreeWidget, procdesc_to_entry
+from artiq.gui.tools import LayoutWidget
+
+
+logger = logging.getLogger(__name__)
+
+
+class Model(DictSyncModel):
+    def __init__(self, init):
+        DictSyncModel.__init__(self, ["RID", "Title", "Args"], init)
+
+    def convert(self, k, v, column):
+        if column == 0:
+            return k
+        elif column == 1:
+            txt = ": " + v["title"] if v["title"] != "" else ""
+            return str(k) + txt
+        elif column == 2:
+            return v["arglist_desc"]
+        else:
+            raise ValueError
+
+    def sort_key(self, k, v):
+        return k
+
+
+class _InteractiveArgsRequest(EntryTreeWidget):
+    supplied = QtCore.pyqtSignal(int, dict)
+    cancelled = QtCore.pyqtSignal(int)
+
+    def __init__(self, rid, arglist_desc):
+        EntryTreeWidget.__init__(self)
+        self.rid = rid
+        self.arguments = dict()
+        for key, procdesc, group, tooltip in arglist_desc:
+            self.arguments[key] = {"desc": procdesc, "group": group, "tooltip": tooltip}
+            self.set_argument(key, self.arguments[key])
+        self.quickStyleClicked.connect(self.supply)
+        cancel_btn = QtWidgets.QPushButton("Cancel")
+        cancel_btn.setIcon(QtWidgets.QApplication.style().standardIcon(
+            QtWidgets.QStyle.StandardPixmap.SP_DialogCancelButton))
+        cancel_btn.clicked.connect(self.cancel)
+        supply_btn = QtWidgets.QPushButton("Supply")
+        supply_btn.setIcon(QtWidgets.QApplication.style().standardIcon(
+            QtWidgets.QStyle.StandardPixmap.SP_DialogOkButton))
+        supply_btn.clicked.connect(self.supply)
+        buttons = LayoutWidget()
+        buttons.addWidget(cancel_btn, 1, 1)
+        buttons.addWidget(supply_btn, 1, 2)
+        buttons.layout.setColumnStretch(0, 1)
+        buttons.layout.setColumnStretch(1, 0)
+        buttons.layout.setColumnStretch(2, 0)
+        buttons.layout.setColumnStretch(3, 1)
+        self.setItemWidget(self.bottom_item, 1, buttons)
+
+    def supply(self):
+        argument_values = dict()
+        for key, argument in self.arguments.items():
+            entry_cls = procdesc_to_entry(argument["desc"])
+            argument_values[key] = entry_cls.state_to_value(argument["state"])
+        self.supplied.emit(self.rid, argument_values)
+
+    def cancel(self):
+        self.cancelled.emit(self.rid)
+
+
+class _InteractiveArgsView(QtWidgets.QStackedWidget):
+    supplied = QtCore.pyqtSignal(int, dict)
+    cancelled = QtCore.pyqtSignal(int)
+
+    def __init__(self):
+        QtWidgets.QStackedWidget.__init__(self)
+        self.tabs = QtWidgets.QTabWidget()
+        self.default_label = QtWidgets.QLabel("No pending interactive arguments requests.")
+        self.default_label.setAlignment(QtCore.Qt.AlignmentFlag.AlignCenter)
+        font = QtGui.QFont(self.default_label.font())
+        font.setItalic(True)
+        self.default_label.setFont(font)
+        self.addWidget(self.tabs)
+        self.addWidget(self.default_label)
+        self.model = Model({})
+
+    def setModel(self, model):
+        self.setCurrentIndex(1)
+        for i in range(self.tabs.count()):
+            widget = self.tabs.widget(i)
+            self.tabs.removeTab(i)
+            widget.deleteLater()
+        self.model = model
+        self.model.rowsInserted.connect(self.rowsInserted)
+        self.model.rowsRemoved.connect(self.rowsRemoved)
+        for i in range(self.model.rowCount(QtCore.QModelIndex())):
+            self._insert_widget(i)
+
+    def _insert_widget(self, row):
+        rid = self.model.data(self.model.index(row, 0),
+                              QtCore.Qt.ItemDataRole.DisplayRole)
+        title = self.model.data(self.model.index(row, 1),
+                                QtCore.Qt.ItemDataRole.DisplayRole)
+        arglist_desc = self.model.data(self.model.index(row, 2),
+                                       QtCore.Qt.ItemDataRole.DisplayRole)
+        inter_args_request = _InteractiveArgsRequest(rid, arglist_desc)
+        inter_args_request.supplied.connect(self.supplied)
+        inter_args_request.cancelled.connect(self.cancelled)
+        self.tabs.insertTab(row, inter_args_request, title)
+
+    def rowsInserted(self, parent, first, last):
+        assert first == last
+        self.setCurrentIndex(0)
+        self._insert_widget(first)
+
+    def rowsRemoved(self, parent, first, last):
+        assert first == last
+        widget = self.tabs.widget(first)
+        self.tabs.removeTab(first)
+        widget.deleteLater()
+        if self.tabs.count() == 0:
+            self.setCurrentIndex(1)
+
+
+class InteractiveArgsDock(QtWidgets.QDockWidget):
+    def __init__(self, interactive_args_sub, interactive_args_rpc):
+        QtWidgets.QDockWidget.__init__(self, "Interactive Args")
+        self.setObjectName("Interactive Args")
+        self.setFeatures(
+            self.DockWidgetFeature.DockWidgetMovable | self.DockWidgetFeature.DockWidgetFloatable)
+        self.interactive_args_rpc = interactive_args_rpc
+        self.request_view = _InteractiveArgsView()
+        self.request_view.supplied.connect(self.supply)
+        self.request_view.cancelled.connect(self.cancel)
+        self.setWidget(self.request_view)
+        interactive_args_sub.add_setmodel_callback(self.request_view.setModel)
+
+    def supply(self, rid, values):
+        asyncio.ensure_future(self._supply_task(rid, values))
+
+    async def _supply_task(self, rid, values):
+        try:
+            await self.interactive_args_rpc.supply(rid, values)
+        except Exception:
+            logger.error("failed to supply interactive arguments for experiment: %d",
+                         rid, exc_info=True)
+
+    def cancel(self, rid):
+        asyncio.ensure_future(self._cancel_task(rid))
+
+    async def _cancel_task(self, rid):
+        try:
+            await self.interactive_args_rpc.cancel(rid)
+        except Exception:
+            logger.error("failed to cancel interactive args request for experiment: %d",
+                         rid, exc_info=True)

artiq/dashboard/moninj.py

@@ -2,61 +2,66 @@ import asyncio
 import logging
 import textwrap
 from collections import namedtuple
+from functools import partial
 
-from PyQt5 import QtCore, QtWidgets, QtGui
+from PyQt6 import QtCore, QtWidgets, QtGui
 
-from sipyco.sync_struct import Subscriber
-
-from artiq.coredevice.comm_moninj import *
-from artiq.coredevice.ad9910 import (
-    _AD9910_REG_PROFILE0, _AD9910_REG_PROFILE7, 
-    _AD9910_REG_FTW, _AD9910_REG_CFR1
-)
-from artiq.coredevice.ad9912_reg import AD9912_POW1, AD9912_SER_CONF
-from artiq.gui.tools import LayoutWidget
-from artiq.gui.flowlayout import FlowLayout
+from artiq.coredevice.comm_moninj import CommMonInj, TTLOverride, TTLProbe
+from artiq.coredevice.ad9912_reg import AD9912_SER_CONF
+from artiq.gui.tools import LayoutWidget, QDockWidgetCloseDetect, DoubleClickLineEdit
+from artiq.gui.dndwidgets import VDragScrollArea, DragDropFlowLayoutWidget
+from artiq.gui.models import DictSyncTreeSepModel
+from artiq.tools import elide
 
 
 logger = logging.getLogger(__name__)
 
+
 class _CancellableLineEdit(QtWidgets.QLineEdit):
     def escapePressedConnect(self, cb):
         self.esc_cb = cb
 
     def keyPressEvent(self, event):
         key = event.key()
-        if key == QtCore.Qt.Key_Escape:
+        if key == QtCore.Qt.Key.Key_Escape:
             self.esc_cb(event)
         QtWidgets.QLineEdit.keyPressEvent(self, event)
 
 
-class _TTLWidget(QtWidgets.QFrame):
-    def __init__(self, dm, channel, force_out, title):
+class _MoninjWidget(QtWidgets.QFrame):
+    def __init__(self, title):
         QtWidgets.QFrame.__init__(self)
+        self.setFrameShape(QtWidgets.QFrame.Shape.Box)
+        self.setFrameShadow(QtWidgets.QFrame.Shadow.Raised)
+        self.setFixedHeight(100)
+        self.setFixedWidth(150)
+        self.grid = QtWidgets.QGridLayout()
+        self.grid.setContentsMargins(0, 0, 0, 0)
+        self.grid.setHorizontalSpacing(0)
+        self.grid.setVerticalSpacing(0)
+        self.setLayout(self.grid)
+        title = elide(title, 20)
+        label = QtWidgets.QLabel(title)
+        label.setAlignment(QtCore.Qt.AlignmentFlag.AlignCenter)
+        label.setSizePolicy(QtWidgets.QSizePolicy.Policy.Ignored,
+                            QtWidgets.QSizePolicy.Policy.Preferred)
+        self.grid.addWidget(label, 1, 1)
+
+
+class _TTLWidget(_MoninjWidget):
+    def __init__(self, dm, channel, force_out, title):
+        _MoninjWidget.__init__(self, title)
 
         self.channel = channel
         self.set_mode = dm.ttl_set_mode
         self.force_out = force_out
-
-        self.setFrameShape(QtWidgets.QFrame.Box)
-        self.setFrameShadow(QtWidgets.QFrame.Raised)
-
-        grid = QtWidgets.QGridLayout()
-        grid.setContentsMargins(0, 0, 0, 0)
-        grid.setHorizontalSpacing(0)
-        grid.setVerticalSpacing(0)
-        self.setLayout(grid)
-        label = QtWidgets.QLabel(title)
-        label.setAlignment(QtCore.Qt.AlignCenter)
-        label.setSizePolicy(QtWidgets.QSizePolicy.Ignored,
-                            QtWidgets.QSizePolicy.Preferred)
-        grid.addWidget(label, 1, 1)
+        self.title = title
 
         self.stack = QtWidgets.QStackedWidget()
-        grid.addWidget(self.stack, 2, 1)
+        self.grid.addWidget(self.stack, 2, 1)
 
         self.direction = QtWidgets.QLabel()
-        self.direction.setAlignment(QtCore.Qt.AlignCenter)
+        self.direction.setAlignment(QtCore.Qt.AlignmentFlag.AlignCenter)
         self.stack.addWidget(self.direction)
 
         grid_cb = LayoutWidget()
@@ -76,13 +81,13 @@ class _TTLWidget(QtWidgets.QFrame):
         self.stack.addWidget(grid_cb)
 
         self.value = QtWidgets.QLabel()
-        self.value.setAlignment(QtCore.Qt.AlignCenter)
-        grid.addWidget(self.value, 3, 1)
+        self.value.setAlignment(QtCore.Qt.AlignmentFlag.AlignCenter)
+        self.grid.addWidget(self.value, 3, 1)
 
-        grid.setRowStretch(1, 1)
-        grid.setRowStretch(2, 0)
-        grid.setRowStretch(3, 0)
-        grid.setRowStretch(4, 1)
+        self.grid.setRowStretch(1, 1)
+        self.grid.setRowStretch(2, 0)
+        self.grid.setRowStretch(3, 0)
+        self.grid.setRowStretch(4, 1)
 
         self.programmatic_change = False
         self.override.clicked.connect(self.override_toggled)
@@ -133,7 +138,7 @@ class _TTLWidget(QtWidgets.QFrame):
         else:
             color = ""
         self.value.setText("<font size=\"5\"{}>{}</font>".format(
-                            color, value_s))
+                           color, value_s))
         oe = self.cur_oe or self.force_out
         direction = "OUT" if oe else "IN"
         self.direction.setText("<font size=\"2\">" + direction + "</font>")
@@ -148,40 +153,13 @@ class _TTLWidget(QtWidgets.QFrame):
             self.programmatic_change = False
 
     def sort_key(self):
-        return self.channel
+        return (0, self.channel, 0)
 
+    def uid(self):
+        return self.title
 
-class _SimpleDisplayWidget(QtWidgets.QFrame):
-    def __init__(self, title):
-        QtWidgets.QFrame.__init__(self)
-
-        self.setFrameShape(QtWidgets.QFrame.Box)
-        self.setFrameShadow(QtWidgets.QFrame.Raised)
-
-        grid = QtWidgets.QGridLayout()
-        grid.setContentsMargins(0, 0, 0, 0)
-        grid.setHorizontalSpacing(0)
-        grid.setVerticalSpacing(0)
-        self.setLayout(grid)
-        label = QtWidgets.QLabel(title)
-        label.setAlignment(QtCore.Qt.AlignCenter)
-        grid.addWidget(label, 1, 1)
-
-        self.value = QtWidgets.QLabel()
-        self.value.setAlignment(QtCore.Qt.AlignCenter)
-        grid.addWidget(self.value, 2, 1, 6, 1)
-
-        grid.setRowStretch(1, 1)
-        grid.setRowStretch(2, 0)
-        grid.setRowStretch(3, 1)
-
-        self.refresh_display()
-
-    def refresh_display(self):
-        raise NotImplementedError
-
-    def sort_key(self):
-        raise NotImplementedError
+    def to_model_path(self):
+        return "ttl/{}".format(self.title)
 
 
 class _DDSModel:
@@ -191,7 +169,7 @@ class _DDSModel:
         self.cur_reg = 0
         self.dds_type = dds_type
         self.is_urukul = dds_type in ["AD9910", "AD9912"]
-    
+
         if dds_type == "AD9914":
             self.ftw_per_hz = 2**32 / ref_clk
         else:
@@ -215,28 +193,18 @@ class _DDSModel:
         return ftw / self.ftw_per_hz
 
 
-class _DDSWidget(QtWidgets.QFrame):
-    def __init__(self, dm, title, bus_channel=0, channel=0, dds_model=None):
+class _DDSWidget(_MoninjWidget):
+    def __init__(self, dm, title, bus_channel, channel,
+                 dds_type, ref_clk, cpld=None, pll=1, clk_div=0):
         self.dm = dm
         self.bus_channel = bus_channel
         self.channel = channel
         self.dds_name = title
         self.cur_frequency = 0
-        self.dds_model = dds_model
+        self.dds_model = _DDSModel(dds_type, ref_clk, cpld, pll, clk_div)
+        self.title = title
 
-        QtWidgets.QFrame.__init__(self)
-
-        self.setFrameShape(QtWidgets.QFrame.Box)
-        self.setFrameShadow(QtWidgets.QFrame.Raised)
-
-        grid = QtWidgets.QGridLayout()
-        grid.setContentsMargins(0, 0, 0, 0)
-        grid.setHorizontalSpacing(0)
-        grid.setVerticalSpacing(0)
-        self.setLayout(grid)
-        label = QtWidgets.QLabel(title)
-        label.setAlignment(QtCore.Qt.AlignCenter)
-        grid.addWidget(label, 1, 1)
+        _MoninjWidget.__init__(self, title)
 
         # FREQ DATA/EDIT FIELD
         self.data_stack = QtWidgets.QStackedWidget()
@@ -248,11 +216,11 @@ class _DDSWidget(QtWidgets.QFrame):
         grid_disp.layout.setVerticalSpacing(0)
 
         self.value_label = QtWidgets.QLabel()
-        self.value_label.setAlignment(QtCore.Qt.AlignCenter)
+        self.value_label.setAlignment(QtCore.Qt.AlignmentFlag.AlignCenter)
         grid_disp.addWidget(self.value_label, 0, 1, 1, 2)
 
         unit = QtWidgets.QLabel("MHz")
-        unit.setAlignment(QtCore.Qt.AlignCenter)
+        unit.setAlignment(QtCore.Qt.AlignmentFlag.AlignCenter)
         grid_disp.addWidget(unit, 0, 3, 1, 1)
 
         self.data_stack.addWidget(grid_disp)
@@ -264,14 +232,14 @@ class _DDSWidget(QtWidgets.QFrame):
         grid_edit.layout.setVerticalSpacing(0)
 
         self.value_edit = _CancellableLineEdit(self)
-        self.value_edit.setAlignment(QtCore.Qt.AlignRight)
+        self.value_edit.setAlignment(QtCore.Qt.AlignmentFlag.AlignRight)
         grid_edit.addWidget(self.value_edit, 0, 1, 1, 2)
         unit = QtWidgets.QLabel("MHz")
-        unit.setAlignment(QtCore.Qt.AlignCenter)
+        unit.setAlignment(QtCore.Qt.AlignmentFlag.AlignCenter)
         grid_edit.addWidget(unit, 0, 3, 1, 1)
         self.data_stack.addWidget(grid_edit)
 
-        grid.addWidget(self.data_stack, 2, 1)
+        self.grid.addWidget(self.data_stack, 2, 1)
 
         # BUTTONS
         self.button_stack = QtWidgets.QStackedWidget()
@@ -283,7 +251,7 @@ class _DDSWidget(QtWidgets.QFrame):
         set_btn.setText("Set")
         set_btn.setToolTip("Set frequency")
         set_grid.addWidget(set_btn, 0, 1, 1, 1)
-        
+
         # for urukuls also allow switching off RF
         if self.dds_model.is_urukul:
             off_btn = QtWidgets.QToolButton()
@@ -304,11 +272,11 @@ class _DDSWidget(QtWidgets.QFrame):
         cancel.setToolTip("Cancel changes")
         apply_grid.addWidget(cancel, 0, 2, 1, 1)
         self.button_stack.addWidget(apply_grid)
-        grid.addWidget(self.button_stack, 3, 1)
+        self.grid.addWidget(self.button_stack, 3, 1)
 
-        grid.setRowStretch(1, 1)
-        grid.setRowStretch(2, 1)
-        grid.setRowStretch(3, 1)
+        self.grid.setRowStretch(1, 1)
+        self.grid.setRowStretch(2, 1)
+        self.grid.setRowStretch(3, 1)
 
         set_btn.clicked.connect(self.set_clicked)
         apply.clicked.connect(self.apply_changes)
@@ -327,18 +295,17 @@ class _DDSWidget(QtWidgets.QFrame):
     def set_clicked(self, set):
         self.data_stack.setCurrentIndex(1)
         self.button_stack.setCurrentIndex(1)
-        self.value_edit.setText("{:.7f}"
-                .format(self.cur_frequency/1e6))
+        self.value_edit.setText("{:.7f}".format(self.cur_frequency / 1e6))
         self.value_edit.setFocus()
         self.value_edit.selectAll()
 
     def off_clicked(self, set):
         self.dm.dds_channel_toggle(self.dds_name, self.dds_model, sw=False)
-    
+
     def apply_changes(self, apply):
         self.data_stack.setCurrentIndex(0)
         self.button_stack.setCurrentIndex(0)
-        frequency = float(self.value_edit.text())*1e6
+        frequency = float(self.value_edit.text()) * 1e6
         self.dm.dds_set_frequency(self.dds_name, self.dds_model, frequency)
 
     def cancel_changes(self, cancel):
@@ -347,28 +314,53 @@ class _DDSWidget(QtWidgets.QFrame):
 
     def refresh_display(self):
         self.cur_frequency = self.dds_model.cur_frequency
-        self.value_label.setText("<font size=\"4\">{:.7f}</font>"
-                           .format(self.cur_frequency/1e6))
-        self.value_edit.setText("{:.7f}"
-                           .format(self.cur_frequency/1e6))
+        self.value_label.setText("<font size=\"4\">{:.7f}</font>".format(self.cur_frequency / 1e6))
+        self.value_edit.setText("{:.7f}".format(self.cur_frequency / 1e6))
 
     def sort_key(self):
-        return (self.bus_channel, self.channel)
+        return (1, self.bus_channel, self.channel)
+
+    def uid(self):
+        return self.title
+
+    def to_model_path(self):
+        return "dds/{}".format(self.title)
 
 
-class _DACWidget(_SimpleDisplayWidget):
-    def __init__(self, dm, spi_channel, channel, title):
+class _DACWidget(_MoninjWidget):
+    def __init__(self, dm, spi_channel, channel, title, vref, offset_dacs):
+        _MoninjWidget.__init__(self, "{}_ch{}".format(title, channel))
         self.spi_channel = spi_channel
         self.channel = channel
-        self.cur_value = 0
-        _SimpleDisplayWidget.__init__(self, "{} ch{}".format(title, channel))
+        self.cur_value = 0x8000
+        self.title = title
+        self.vref = vref
+        self.offset_dacs = offset_dacs
+
+        self.value = QtWidgets.QLabel()
+        self.value.setAlignment(QtCore.Qt.AlignmentFlag.AlignHCenter | QtCore.Qt.AlignmentFlag.AlignTop)
+        self.grid.addWidget(self.value, 2, 1, 6, 1)
+
+        self.grid.setRowStretch(1, 1)
+        self.grid.setRowStretch(2, 1)
+
+        self.refresh_display()
+
+    def mu_to_voltage(self, code):
+        return ((code - self.offset_dacs * 0x4) / (1 << 16)) * (4. * self.vref)
 
     def refresh_display(self):
-        self.value.setText("<font size=\"4\">{:.3f}</font><font size=\"2\"> %</font>"
-                           .format(self.cur_value*100/2**16))
+        self.value.setText("<font size=\"4\">{:+.3f} V</font>"
+                           .format(self.mu_to_voltage(self.cur_value)))
 
     def sort_key(self):
-        return (self.spi_channel, self.channel)
+        return (2, self.spi_channel, self.channel)
+
+    def uid(self):
+        return (self.title, self.channel)
+
+    def to_model_path(self):
+        return "dac/{}_ch{}".format(self.title, self.channel)
 
 
 _WidgetDesc = namedtuple("_WidgetDesc", "uid comment cls arguments")
@@ -386,24 +378,19 @@ def setup_from_ddb(ddb):
                 comment = v.get("comment")
                 if v["type"] == "local":
                     if v["module"] == "artiq.coredevice.ttl":
-                        if "ttl_urukul" in k:
-                            continue
                         channel = v["arguments"]["channel"]
                         force_out = v["class"] == "TTLOut"
                         widget = _WidgetDesc(k, comment, _TTLWidget, (channel, force_out, k))
                         description.add(widget)
-                    elif (v["module"] == "artiq.coredevice.ad9914"
-                            and v["class"] == "AD9914"):
+                    elif (v["module"] == "artiq.coredevice.ad9914" and v["class"] == "AD9914"):
                         bus_channel = v["arguments"]["bus_channel"]
                         channel = v["arguments"]["channel"]
                         dds_sysclk = v["arguments"]["sysclk"]
-                        model = _DDSModel(v["class"], dds_sysclk)
-                        widget = _WidgetDesc(k, comment, _DDSWidget, (k, bus_channel, channel, model))
+                        widget = _WidgetDesc(k, comment, _DDSWidget,
+                                             (k, bus_channel, channel, v["class"], dds_sysclk))
                         description.add(widget)
-                    elif (v["module"] == "artiq.coredevice.ad9910"
-                                and v["class"] == "AD9910") or \
-                            (v["module"] == "artiq.coredevice.ad9912"
-                                and v["class"] == "AD9912"):
+                    elif (v["module"] == "artiq.coredevice.ad9910" and v["class"] == "AD9910") or \
+                         (v["module"] == "artiq.coredevice.ad9912" and v["class"] == "AD9912"):
                         channel = v["arguments"]["chip_select"] - 4
                         if channel < 0:
                             continue
@@ -413,18 +400,28 @@ def setup_from_ddb(ddb):
                         pll = v["arguments"]["pll_n"]
                         refclk = ddb[dds_cpld]["arguments"]["refclk"]
                         clk_div = v["arguments"].get("clk_div", 0)
-                        model = _DDSModel( v["class"], refclk, dds_cpld, pll, clk_div)
-                        widget = _WidgetDesc(k, comment, _DDSWidget, (k, bus_channel, channel, model))
-                        description.add(widget)       
-                    elif (   (v["module"] == "artiq.coredevice.ad53xx" and v["class"] == "AD53xx")
-                          or (v["module"] == "artiq.coredevice.zotino" and v["class"] == "Zotino")):
+                        widget = _WidgetDesc(k, comment, _DDSWidget,
+                                             (k, bus_channel, channel, v["class"],
+                                              refclk, dds_cpld, pll, clk_div))
+                        description.add(widget)
+                    elif (v["module"] == "artiq.coredevice.ad53xx" and v["class"] == "AD53xx") or \
+                         (v["module"] == "artiq.coredevice.zotino" and v["class"] == "Zotino"):
                         spi_device = v["arguments"]["spi_device"]
                         spi_device = ddb[spi_device]
                         while isinstance(spi_device, str):
                             spi_device = ddb[spi_device]
                         spi_channel = spi_device["arguments"]["channel"]
+                        vref = v["arguments"].get("vref", 5.)
+                        offset_dacs = v["arguments"].get("offset_dacs", 8192)
                         for channel in range(32):
-                            widget = _WidgetDesc((k, channel), comment, _DACWidget, (spi_channel, channel, k))
+                            widget = _WidgetDesc((k, channel), comment, _DACWidget,
+                                                 (spi_channel, channel, k, vref, offset_dacs))
+                            description.add(widget)
+                    elif (v["module"] == "artiq.coredevice.fastino" and v["class"] == "Fastino"):
+                        bus_channel = v["arguments"]["channel"]
+                        for channel in range(0, 32):
+                            widget = _WidgetDesc((k, channel), comment, _DACWidget,
+                                                 (bus_channel, channel, k, 5, 8192))
                             description.add(widget)
                 elif v["type"] == "controller" and k == "core_moninj":
                     mi_addr = v["host"]
@@ -449,18 +446,15 @@ class _DeviceManager:
         self.widgets_by_uid = dict()
 
         self.dds_sysclk = 0
-        self.ttl_cb = lambda: None
         self.ttl_widgets = dict()
-        self.dds_cb = lambda: None
         self.dds_widgets = dict()
-        self.dac_cb = lambda: None
         self.dac_widgets = dict()
+        self.channels_cb = lambda: None
 
     def init_ddb(self, ddb):
         self.ddb = ddb
-        return ddb
 
-    def notify(self, mod):
+    def notify_ddb(self, mod):
         mi_addr, mi_port, description = setup_from_ddb(self.ddb)
 
         if (mi_addr, mi_port) != (self.mi_addr, self.mi_port):
@@ -471,24 +465,8 @@ class _DeviceManager:
         for to_remove in self.description - description:
             widget = self.widgets_by_uid[to_remove.uid]
             del self.widgets_by_uid[to_remove.uid]
-
-            if isinstance(widget, _TTLWidget):
-                self.setup_ttl_monitoring(False, widget.channel)
-                widget.deleteLater()
-                del self.ttl_widgets[widget.channel]
-                self.ttl_cb()
-            elif isinstance(widget, _DDSWidget):
-                self.setup_dds_monitoring(False, widget.bus_channel, widget.channel)
-                widget.deleteLater()
-                del self.dds_widgets[(widget.bus_channel, widget.channel)]
-                self.dds_cb()
-            elif isinstance(widget, _DACWidget):
-                self.setup_dac_monitoring(False, widget.spi_channel, widget.channel)
-                widget.deleteLater()
-                del self.dac_widgets[(widget.spi_channel, widget.channel)]
-                self.dac_cb()     
-            else:
-                raise ValueError
+            self.setup_monitoring(False, widget)
+            widget.deleteLater()
 
         for to_add in description - self.description:
             widget = to_add.cls(self, *to_add.arguments)
@@ -496,26 +474,15 @@ class _DeviceManager:
                 widget.setToolTip(to_add.comment)
             self.widgets_by_uid[to_add.uid] = widget
 
-            if isinstance(widget, _TTLWidget):
-                self.ttl_widgets[widget.channel] = widget
-                self.ttl_cb()
-                self.setup_ttl_monitoring(True, widget.channel)
-            elif isinstance(widget, _DDSWidget):
-                self.dds_widgets[(widget.bus_channel, widget.channel)] = widget
-                self.dds_cb()
-                self.setup_dds_monitoring(True, widget.bus_channel, widget.channel)
-            elif isinstance(widget, _DACWidget):
-                self.dac_widgets[(widget.spi_channel, widget.channel)] = widget
-                self.dac_cb()
-                self.setup_dac_monitoring(True, widget.spi_channel, widget.channel)
-            else:
-                raise ValueError
+        if description != self.description:
+            self.channels_cb()
 
         self.description = description
 
     def ttl_set_mode(self, channel, mode):
         if self.mi_connection is not None:
-            widget = self.ttl_widgets[channel]
+            widget_uid = self.ttl_widgets[channel]
+            widget = self.widgets_by_uid[widget_uid]
             if mode == "0":
                 widget.cur_override = True
                 widget.cur_level = False
@@ -565,7 +532,7 @@ class _DeviceManager:
             cpld_dev = """self.setattr_device("core_cache")
                 self.setattr_device("{}")""".format(dds_model.cpld)
 
-            # `sta`/`rf_sw`` variables are guaranteed for urukuls 
+            # `sta`/`rf_sw`` variables are guaranteed for urukuls
             # so {action} can use it
             # if there's no RF enabled, CPLD may have not been initialized
             # but if there is, it has been initialised - no need to do again
@@ -624,8 +591,8 @@ class _DeviceManager:
                    channel_init=channel_init))
         asyncio.ensure_future(
             self._submit_by_content(
-                dds_exp, 
-                title, 
+                dds_exp,
+                title,
                 log_msg))
 
     def dds_set_frequency(self, dds_channel, dds_model, freq):
@@ -640,8 +607,8 @@ class _DeviceManager:
             dds_channel,
             dds_model,
             action,
-            "SetDDS", 
-            "Set DDS {} {}MHz".format(dds_channel, freq/1e6))
+            "SetDDS",
+            "Set DDS {} {}MHz".format(dds_channel, freq / 1e6))
 
     def dds_channel_toggle(self, dds_channel, dds_model, sw=True):
         # urukul only
@@ -661,9 +628,34 @@ class _DeviceManager:
             dds_channel,
             dds_model,
             action,
-            "ToggleDDS", 
+            "ToggleDDS",
             "Toggle DDS {} {}".format(dds_channel, "on" if sw else "off"))
 
+    def setup_monitoring(self, enable, widget):
+        if isinstance(widget, _TTLWidget):
+            key = widget.channel
+            args = (key,)
+            subscribers = self.ttl_widgets
+            subscribe_func = self.setup_ttl_monitoring
+        elif isinstance(widget, _DDSWidget):
+            key = (widget.bus_channel, widget.channel)
+            args = key
+            subscribers = self.dds_widgets
+            subscribe_func = self.setup_dds_monitoring
+        elif isinstance(widget, _DACWidget):
+            key = (widget.spi_channel, widget.channel)
+            args = key
+            subscribers = self.dac_widgets
+            subscribe_func = self.setup_dac_monitoring
+        else:
+            raise ValueError
+        if enable and key not in subscribers:
+            subscribers[key] = widget.uid()
+            subscribe_func(enable, *args)
+        elif not enable and key in subscribers:
+            subscribe_func(enable, *args)
+            del subscribers[key]
+
     def setup_ttl_monitoring(self, enable, channel):
         if self.mi_connection is not None:
             self.mi_connection.monitor_probe(enable, channel, TTLProbe.level.value)
@@ -683,24 +675,28 @@ class _DeviceManager:
 
     def monitor_cb(self, channel, probe, value):
         if channel in self.ttl_widgets:
-            widget = self.ttl_widgets[channel]
+            widget_uid = self.ttl_widgets[channel]
+            widget = self.widgets_by_uid[widget_uid]
             if probe == TTLProbe.level.value:
                 widget.cur_level = bool(value)
             elif probe == TTLProbe.oe.value:
                 widget.cur_oe = bool(value)
             widget.refresh_display()
         elif (channel, probe) in self.dds_widgets:
-            widget = self.dds_widgets[(channel, probe)]
+            widget_uid = self.dds_widgets[(channel, probe)]
+            widget = self.widgets_by_uid[widget_uid]
             widget.dds_model.monitor_update(probe, value)
             widget.refresh_display()
         elif (channel, probe) in self.dac_widgets:
-            widget = self.dac_widgets[(channel, probe)]
+            widget_uid = self.dac_widgets[(channel, probe)]
+            widget = self.widgets_by_uid[widget_uid]
             widget.cur_value = value
             widget.refresh_display()
 
     def injection_status_cb(self, channel, override, value):
         if channel in self.ttl_widgets:
-            widget = self.ttl_widgets[channel]
+            widget_uid = self.ttl_widgets[channel]
+            widget = self.widgets_by_uid[widget_uid]
             if override == TTLOverride.en.value:
                 widget.cur_override = bool(value)
             if override == TTLOverride.level.value:
@@ -719,14 +715,12 @@ class _DeviceManager:
                 await self.mi_connection.close()
                 self.mi_connection = None
             new_mi_connection = CommMonInj(self.monitor_cb, self.injection_status_cb,
-                    self.disconnect_cb)
+                                           self.disconnect_cb)
             try:
                 await new_mi_connection.connect(self.mi_addr, self.mi_port)
-            except asyncio.CancelledError:
-                logger.info("cancelled connection to moninj")
-                break
-            except:
-                logger.error("failed to connect to moninj. Is aqctl_moninj_proxy running?", exc_info=True)
+            except Exception:
+                logger.error("failed to connect to moninj. Is aqctl_moninj_proxy running?",
+                             exc_info=True)
                 await asyncio.sleep(10.)
                 self.reconnect_mi.set()
             else:
@@ -736,9 +730,9 @@ class _DeviceManager:
                 for ttl_channel in self.ttl_widgets.keys():
                     self.setup_ttl_monitoring(True, ttl_channel)
                 for bus_channel, channel in self.dds_widgets.keys():
-                    self.setup_dds_monitoring(True, bus_channel, channel)
+                     self.setup_dds_monitoring(True, bus_channel, channel)
                 for spi_channel, channel in self.dac_widgets.keys():
-                    self.setup_dac_monitoring(True, spi_channel, channel)
+                     self.setup_dac_monitoring(True, spi_channel, channel)
 
     async def close(self):
         self.mi_connector_task.cancel()
@@ -750,48 +744,237 @@ class _DeviceManager:
             await self.mi_connection.close()
 
 
-class _MonInjDock(QtWidgets.QDockWidget):
-    def __init__(self, name):
-        QtWidgets.QDockWidget.__init__(self, name)
+class Model(DictSyncTreeSepModel):
+    def __init__(self, init):
+        DictSyncTreeSepModel.__init__(self, "/", ["Channels"], init)
+
+    def clear(self):
+        for k in self.backing_store:
+            self._del_item(self, k.split(self.separator))
+        self.backing_store.clear()
+
+    def update(self, d):
+        for k, v in d.items():
+            self[v.to_model_path()] = v
+
+
+class _AddChannelDialog(QtWidgets.QDialog):
+    def __init__(self, parent, model):
+        QtWidgets.QDialog.__init__(self, parent=parent)
+        self.setContextMenuPolicy(QtCore.Qt.ContextMenuPolicy.ActionsContextMenu)
+        self.setWindowTitle("Add channels")
+
+        layout = QtWidgets.QVBoxLayout()
+        self.setLayout(layout)
+
+        self._model = model
+        self._tree_view = QtWidgets.QTreeView()
+        self._tree_view.setHeaderHidden(True)
+        self._tree_view.setSelectionBehavior(
+            QtWidgets.QAbstractItemView.SelectionBehavior.SelectItems)
+        self._tree_view.setSelectionMode(
+            QtWidgets.QAbstractItemView.SelectionMode.ExtendedSelection)
+        self._tree_view.setModel(self._model)
+        layout.addWidget(self._tree_view)
+
+        self._button_box = QtWidgets.QDialogButtonBox(
+            QtWidgets.QDialogButtonBox.StandardButton.Ok | \
+            QtWidgets.QDialogButtonBox.StandardButton.Cancel
+        )
+        self._button_box.setCenterButtons(True)
+        self._button_box.accepted.connect(self.add_channels)
+        self._button_box.rejected.connect(self.reject)
+        layout.addWidget(self._button_box)
+
+    def add_channels(self):
+        selection = self._tree_view.selectedIndexes()
+        channels = []
+        for select in selection:
+            key = self._model.index_to_key(select)
+            if key is not None:
+                channels.append(self._model[key].ref)
+        self.channels = channels
+        self.accept()
+
+
+class _MonInjDock(QDockWidgetCloseDetect):
+    def __init__(self, name, manager):
+        QtWidgets.QDockWidget.__init__(self, "MonInj")
         self.setObjectName(name)
-        self.setFeatures(QtWidgets.QDockWidget.DockWidgetMovable |
-                         QtWidgets.QDockWidget.DockWidgetFloatable)
+        self.setFeatures(self.DockWidgetFeature.DockWidgetMovable |
+                         self.DockWidgetFeature.DockWidgetFloatable)
+        grid = LayoutWidget()
+        self.setWidget(grid)
+        self.manager = manager
+        self.widget_uids = None
+
+        newdock = QtWidgets.QToolButton()
+        newdock.setToolTip("Create new moninj dock")
+        newdock.setIcon(QtWidgets.QApplication.style().standardIcon(
+            QtWidgets.QStyle.StandardPixmap.SP_FileDialogNewFolder))
+        newdock.clicked.connect(lambda: self.manager.create_new_dock())
+        grid.addWidget(newdock, 0, 0)
+
+        self.channel_dialog = _AddChannelDialog(self, self.manager.channel_model)
+        self.channel_dialog.accepted.connect(self.add_channels)
+
+        dialog_btn = QtWidgets.QToolButton()
+        dialog_btn.setToolTip("Add channels")
+        dialog_btn.setIcon(
+            QtWidgets.QApplication.style().standardIcon(
+                QtWidgets.QStyle.StandardPixmap.SP_FileDialogListView))
+        dialog_btn.clicked.connect(self.channel_dialog.open)
+        grid.addWidget(dialog_btn, 0, 1)
+
+        self.label = DoubleClickLineEdit(name)
+        self.label.setStyleSheet("background:transparent;")
+        grid.addWidget(self.label, 0, 2)
+
+        scroll_area = VDragScrollArea(self)
+        grid.addWidget(scroll_area, 1, 0, 1, 10)
+        self.flow = DragDropFlowLayoutWidget()
+        scroll_area.setWidgetResizable(True)
+        scroll_area.setWidget(self.flow)
+        self.flow.setContextMenuPolicy(
+            QtCore.Qt.ContextMenuPolicy.CustomContextMenu)
+        self.flow.customContextMenuRequested.connect(self.custom_context_menu)
+
+    def custom_context_menu(self, pos):
+        index = self.flow._get_index(pos)
+        if index == -1:
+            return
+        menu = QtWidgets.QMenu()
+        delete_action = QtGui.QAction("Delete widget", menu)
+        delete_action.triggered.connect(partial(self.delete_widget, index))
+        menu.addAction(delete_action)
+        menu.exec_(self.flow.mapToGlobal(pos))
+
+    def delete_all_widgets(self):
+        for index in reversed(range(self.flow.count())):
+            self.delete_widget(index, True)
+
+
+    def delete_widget(self, index, checked):
+        widget = self.flow.itemAt(index).widget()
+        self.manager.dm.setup_monitoring(False, widget)
+        self.flow.layout.takeAt(index)
+        widget.setParent(self.manager.main_window)
+        widget.hide()
+
+    def add_channels(self):
+        channels = self.channel_dialog.channels
+        self.layout_widgets(channels)
 
     def layout_widgets(self, widgets):
-        scroll_area = QtWidgets.QScrollArea()
-        self.setWidget(scroll_area)
-
-        grid = FlowLayout()
-        grid_widget = QtWidgets.QWidget()
-        grid_widget.setLayout(grid)
-
         for widget in sorted(widgets, key=lambda w: w.sort_key()):
-            grid.addWidget(widget)
+            self.manager.dm.setup_monitoring(True, widget)
+            self.flow.addWidget(widget)
+            widget.show()
 
-        scroll_area.setWidgetResizable(True)
-        scroll_area.setWidget(grid_widget)
+    def restore_widgets(self):
+        if self.widget_uids is not None:
+            widgets_by_uid = self.manager.dm.widgets_by_uid
+            widgets = list()
+            for uid in self.widget_uids:
+                if uid in widgets_by_uid:
+                    widgets.append(widgets_by_uid[uid])
+                else:
+                    logger.warning("removing moninj widget {}".format(uid))
+            self.layout_widgets(widgets)
+            self.widget_uids = None
+
+    def _save_widget_uids(self):
+        uids = []
+        for i in range(self.flow.count()):
+            uids.append(self.flow.itemAt(i).widget().uid())
+        return uids
+
+    def save_state(self):
+        return {
+            "dock_label": self.label.text(),
+            "widget_uids": self._save_widget_uids()
+        }
+
+    def restore_state(self, state):
+        try:
+            label = state["dock_label"]
+        except KeyError:
+            pass
+        else:
+            self.label._text = label
+            self.label.setText(label)
+        try:
+            self.widget_uids = state["widget_uids"]
+        except KeyError:
+            pass
 
 
 class MonInj:
-    def __init__(self, schedule_ctl):
-        self.ttl_dock = _MonInjDock("TTL")
-        self.dds_dock = _MonInjDock("DDS")
-        self.dac_dock = _MonInjDock("DAC")
-
+    def __init__(self, schedule_ctl, main_window):
+        self.docks = dict()
+        self.main_window = main_window
         self.dm = _DeviceManager(schedule_ctl)
-        self.dm.ttl_cb = lambda: self.ttl_dock.layout_widgets(
-                            self.dm.ttl_widgets.values())
-        self.dm.dds_cb = lambda: self.dds_dock.layout_widgets(
-                            self.dm.dds_widgets.values())
-        self.dm.dac_cb = lambda: self.dac_dock.layout_widgets(
-                            self.dm.dac_widgets.values())
+        self.dm.channels_cb = self.add_channels
+        self.channel_model = Model({})
 
-        self.subscriber = Subscriber("devices", self.dm.init_ddb, self.dm.notify)
+    def add_channels(self):
+        self.channel_model.clear()
+        self.channel_model.update(self.dm.widgets_by_uid)
+        for dock in self.docks.values():
+            dock.restore_widgets()
 
-    async def start(self, server, port):
-        await self.subscriber.connect(server, port)
+    def create_new_dock(self, add_to_area=True):
+        n = 0
+        name = "moninj0"
+        while name in self.docks:
+            n += 1
+            name = "moninj" + str(n)
+
+        dock = _MonInjDock(name, self)
+        self.docks[name] = dock
+        if add_to_area:
+            self.main_window.addDockWidget(QtCore.Qt.DockWidgetArea.RightDockWidgetArea, dock)
+            dock.setFloating(True)
+        dock.sigClosed.connect(partial(self.on_dock_closed, name))
+        self.update_closable()
+        return dock
+
+    def on_dock_closed(self, name):
+        dock = self.docks[name]
+        del self.docks[name]
+        self.update_closable()
+        dock.delete_all_widgets()
+        dock.deleteLater()
+
+    def update_closable(self):
+        flags = (QtWidgets.QDockWidget.DockWidgetFeature.DockWidgetMovable |
+                 QtWidgets.QDockWidget.DockWidgetFeature.DockWidgetFloatable)
+        if len(self.docks) > 1:
+            flags |= QtWidgets.QDockWidget.DockWidgetFeature.DockWidgetClosable
+        for dock in self.docks.values():
+            dock.setFeatures(flags)
+
+    def first_moninj_dock(self):
+        if self.docks:
+            return None
+        dock = self.create_new_dock(False)
+        return dock
+
+    def save_state(self):
+        return {name: dock.save_state() for name, dock in self.docks.items()}
+
+    def restore_state(self, state):
+        if self.docks:
+            raise NotImplementedError
+        for name, dock_state in state.items():
+            dock = _MonInjDock(name, self)
+            self.docks[name] = dock
+            dock.restore_state(dock_state)
+            self.main_window.addDockWidget(
+                QtCore.Qt.DockWidgetArea.RightDockWidgetArea, dock)
+            dock.sigClosed.connect(partial(self.on_dock_closed, name))
+        self.update_closable()
 
     async def stop(self):
-        await self.subscriber.close()
         if self.dm is not None:
             await self.dm.close()

artiq/dashboard/schedule.py

@@ -3,7 +3,7 @@ import time
 from functools import partial
 import logging
 
-from PyQt5 import QtCore, QtWidgets, QtGui
+from PyQt6 import QtCore, QtWidgets, QtGui
 
 from artiq.gui.models import DictSyncModel
 from artiq.tools import elide
@@ -15,9 +15,8 @@ logger = logging.getLogger(__name__)
 class Model(DictSyncModel):
     def __init__(self, init):
         DictSyncModel.__init__(self,
-            ["RID", "Pipeline", "Status", "Prio", "Due date",
-             "Revision", "File", "Class name"],
-            init)
+                               ["RID", "Pipeline", "Status", "Prio", "Due date",
+                                "Revision", "File", "Class name"], init)
 
     def sort_key(self, k, v):
         # order by priority, and then by due date and RID
@@ -62,31 +61,31 @@ class ScheduleDock(QtWidgets.QDockWidget):
     def __init__(self, schedule_ctl, schedule_sub):
         QtWidgets.QDockWidget.__init__(self, "Schedule")
         self.setObjectName("Schedule")
-        self.setFeatures(QtWidgets.QDockWidget.DockWidgetMovable |
-                         QtWidgets.QDockWidget.DockWidgetFloatable)
+        self.setFeatures(QtWidgets.QDockWidget.DockWidgetFeature.DockWidgetMovable |
+                         QtWidgets.QDockWidget.DockWidgetFeature.DockWidgetFloatable)
 
         self.schedule_ctl = schedule_ctl
 
         self.table = QtWidgets.QTableView()
-        self.table.setSelectionBehavior(QtWidgets.QAbstractItemView.SelectRows)
-        self.table.setSelectionMode(QtWidgets.QAbstractItemView.SingleSelection)
+        self.table.setSelectionBehavior(QtWidgets.QAbstractItemView.SelectionBehavior.SelectRows)
+        self.table.setSelectionMode(QtWidgets.QAbstractItemView.SelectionMode.SingleSelection)
         self.table.verticalHeader().setSectionResizeMode(
-            QtWidgets.QHeaderView.ResizeToContents)
+            QtWidgets.QHeaderView.ResizeMode.ResizeToContents)
         self.table.verticalHeader().hide()
         self.setWidget(self.table)
 
-        self.table.setContextMenuPolicy(QtCore.Qt.ActionsContextMenu)
-        request_termination_action = QtWidgets.QAction("Request termination", self.table)
+        self.table.setContextMenuPolicy(QtCore.Qt.ContextMenuPolicy.ActionsContextMenu)
+        request_termination_action = QtGui.QAction("Request termination", self.table)
         request_termination_action.triggered.connect(partial(self.delete_clicked, True))
         request_termination_action.setShortcut("DELETE")
-        request_termination_action.setShortcutContext(QtCore.Qt.WidgetShortcut)
+        request_termination_action.setShortcutContext(QtCore.Qt.ShortcutContext.WidgetShortcut)
         self.table.addAction(request_termination_action)
-        delete_action = QtWidgets.QAction("Delete", self.table)
+        delete_action = QtGui.QAction("Delete", self.table)
         delete_action.triggered.connect(partial(self.delete_clicked, False))
         delete_action.setShortcut("SHIFT+DELETE")
-        delete_action.setShortcutContext(QtCore.Qt.WidgetShortcut)
+        delete_action.setShortcutContext(QtCore.Qt.ShortcutContext.WidgetShortcut)
         self.table.addAction(delete_action)
-        terminate_pipeline = QtWidgets.QAction(
+        terminate_pipeline = QtGui.QAction(
             "Gracefully terminate all in pipeline", self.table)
         terminate_pipeline.triggered.connect(self.terminate_pipeline_clicked)
         self.table.addAction(terminate_pipeline)
@@ -96,14 +95,14 @@ class ScheduleDock(QtWidgets.QDockWidget):
 
         cw = QtGui.QFontMetrics(self.font()).averageCharWidth()
         h = self.table.horizontalHeader()
-        h.resizeSection(0, 7*cw)
-        h.resizeSection(1, 12*cw)
-        h.resizeSection(2, 16*cw)
-        h.resizeSection(3, 6*cw)
-        h.resizeSection(4, 16*cw)
-        h.resizeSection(5, 30*cw)
-        h.resizeSection(6, 20*cw)
-        h.resizeSection(7, 20*cw)
+        h.resizeSection(0, 7 * cw)
+        h.resizeSection(1, 12 * cw)
+        h.resizeSection(2, 16 * cw)
+        h.resizeSection(3, 6 * cw)
+        h.resizeSection(4, 16 * cw)
+        h.resizeSection(5, 30 * cw)
+        h.resizeSection(6, 20 * cw)
+        h.resizeSection(7, 20 * cw)
 
     def set_model(self, model):
         self.table_model = model
@@ -143,7 +142,7 @@ class ScheduleDock(QtWidgets.QDockWidget):
             selected_rid = self.table_model.row_to_key[row]
             pipeline = self.table_model.backing_store[selected_rid]["pipeline"]
             logger.info("Requesting termination of all "
-                "experiments in pipeline '%s'", pipeline)
+                        "experiments in pipeline '%s'", pipeline)
 
             rids = set()
             for rid, info in self.table_model.backing_store.items():
@@ -151,7 +150,6 @@ class ScheduleDock(QtWidgets.QDockWidget):
                     rids.add(rid)
             asyncio.ensure_future(self.request_term_multiple(rids))
 
-
     def save_state(self):
         return bytes(self.table.horizontalHeader().saveState())
 

artiq/dashboard/shortcuts.py

@@ -1,9 +1,7 @@
 import logging
 from functools import partial
 
-from PyQt5 import QtCore, QtWidgets
-
-from artiq.gui.tools import LayoutWidget
+from PyQt6 import QtCore, QtGui, QtWidgets
 
 
 logger = logging.getLogger(__name__)
@@ -13,8 +11,8 @@ class ShortcutsDock(QtWidgets.QDockWidget):
     def __init__(self, main_window, exp_manager):
         QtWidgets.QDockWidget.__init__(self, "Shortcuts")
         self.setObjectName("Shortcuts")
-        self.setFeatures(QtWidgets.QDockWidget.DockWidgetMovable |
-                         QtWidgets.QDockWidget.DockWidgetFloatable)
+        self.setFeatures(self.DockWidgetFeature.DockWidgetMovable |
+                         self.DockWidgetFeature.DockWidgetFloatable)
 
         layout = QtWidgets.QGridLayout()
         top_widget = QtWidgets.QWidget()
@@ -35,28 +33,28 @@ class ShortcutsDock(QtWidgets.QDockWidget):
         for i in range(12):
             row = i + 1
 
-            layout.addWidget(QtWidgets.QLabel("F" + str(i+1)), row, 0)
+            layout.addWidget(QtWidgets.QLabel("F" + str(i + 1)), row, 0)
 
             label = QtWidgets.QLabel()
-            label.setSizePolicy(QtWidgets.QSizePolicy.Ignored,
-                                QtWidgets.QSizePolicy.Ignored)
+            label.setSizePolicy(QtWidgets.QSizePolicy.Policy.Ignored,
+                                QtWidgets.QSizePolicy.Policy.Ignored)
             layout.addWidget(label, row, 1)
 
             clear = QtWidgets.QToolButton()
             clear.setIcon(QtWidgets.QApplication.style().standardIcon(
-                QtWidgets.QStyle.SP_DialogDiscardButton))
+                QtWidgets.QStyle.StandardPixmap.SP_DialogDiscardButton))
             layout.addWidget(clear, row, 2)
             clear.clicked.connect(partial(self.set_shortcut, i, ""))
 
             open = QtWidgets.QToolButton()
             open.setIcon(QtWidgets.QApplication.style().standardIcon(
-                QtWidgets.QStyle.SP_DialogOpenButton))
+                QtWidgets.QStyle.StandardPixmap.SP_DialogOpenButton))
             layout.addWidget(open, row, 3)
             open.clicked.connect(partial(self._open_experiment, i))
 
             submit = QtWidgets.QPushButton("Submit")
             submit.setIcon(QtWidgets.QApplication.style().standardIcon(
-                QtWidgets.QStyle.SP_DialogOkButton))
+                QtWidgets.QStyle.StandardPixmap.SP_DialogOkButton))
             layout.addWidget(submit, row, 4)
             submit.clicked.connect(partial(self._activated, i))
 
@@ -70,8 +68,8 @@ class ShortcutsDock(QtWidgets.QDockWidget):
                 "open": open,
                 "submit": submit
             }
-            shortcut = QtWidgets.QShortcut("F" + str(i+1), main_window)
-            shortcut.setContext(QtCore.Qt.ApplicationShortcut)
+            shortcut = QtGui.QShortcut("F" + str(i+1), main_window)
+            shortcut.setContext(QtCore.Qt.ShortcutContext.ApplicationShortcut)
             shortcut.activated.connect(partial(self._activated, i))
 
     def _activated(self, nr):

artiq/dashboard/waveform.py

@@ -0,0 +1,926 @@
+import os
+import asyncio
+import logging
+import bisect
+import itertools
+import math
+
+from PyQt6 import QtCore, QtWidgets, QtGui
+
+import pyqtgraph as pg
+import numpy as np
+
+from sipyco.pc_rpc import AsyncioClient
+from sipyco import pyon
+
+from artiq.tools import exc_to_warning, short_format
+from artiq.coredevice import comm_analyzer
+from artiq.coredevice.comm_analyzer import WaveformType
+from artiq.gui.tools import LayoutWidget, get_open_file_name, get_save_file_name
+from artiq.gui.models import DictSyncTreeSepModel
+from artiq.gui.dndwidgets import VDragScrollArea, VDragDropSplitter
+
+
+logger = logging.getLogger(__name__)
+
+WAVEFORM_MIN_HEIGHT = 50
+WAVEFORM_MAX_HEIGHT = 200
+
+
+class ProxyClient():
+    def __init__(self, receive_cb, timeout=5, timer=5, timer_backoff=1.1):
+        self.receive_cb = receive_cb
+        self.receiver = None
+        self.addr = None
+        self.port_proxy = None
+        self.port = None
+        self._reconnect_event = asyncio.Event()
+        self.timeout = timeout
+        self.timer = timer
+        self.timer_cur = timer
+        self.timer_backoff = timer_backoff
+        self._reconnect_task = asyncio.ensure_future(self._reconnect())
+
+    def update_address(self, addr, port, port_proxy):
+        self.addr = addr
+        self.port = port
+        self.port_proxy = port_proxy
+        self._reconnect_event.set()
+
+    async def trigger_proxy_task(self):
+        remote = AsyncioClient()
+        try:
+            try:
+                if self.addr is None:
+                    logger.error("missing core_analyzer host in device db")
+                    return
+                await remote.connect_rpc(self.addr, self.port, "coreanalyzer_proxy_control")
+            except:
+                logger.error("error connecting to analyzer proxy control", exc_info=True)
+                return
+            await remote.trigger()
+        except:
+            logger.error("analyzer proxy reported failure", exc_info=True)
+        finally:
+            remote.close_rpc()
+
+    async def _reconnect(self):
+        while True:
+            await self._reconnect_event.wait()
+            self._reconnect_event.clear()
+            if self.receiver is not None:
+                await self.receiver.close()
+                self.receiver = None
+            new_receiver = comm_analyzer.AnalyzerProxyReceiver(
+                self.receive_cb, self.disconnect_cb)
+            try:
+                if self.addr is not None:
+                    await asyncio.wait_for(new_receiver.connect(self.addr, self.port_proxy),
+                                           self.timeout)
+                    logger.info("ARTIQ dashboard connected to analyzer proxy (%s)", self.addr)
+                    self.timer_cur = self.timer
+                    self.receiver = new_receiver
+                continue
+            except Exception:
+                logger.error("error connecting to analyzer proxy", exc_info=True)
+            try:
+                await asyncio.wait_for(self._reconnect_event.wait(), self.timer_cur)
+            except asyncio.TimeoutError:
+                self.timer_cur *= self.timer_backoff
+                self._reconnect_event.set()
+            else:
+                self.timer_cur = self.timer
+
+    async def close(self):
+        self._reconnect_task.cancel()
+        try:
+            await asyncio.wait_for(self._reconnect_task, None)
+        except asyncio.CancelledError:
+            pass
+        if self.receiver is not None:
+            await self.receiver.close()
+
+    def disconnect_cb(self):
+        logger.error("lost connection to analyzer proxy")
+        self._reconnect_event.set()
+
+
+class _BackgroundItem(pg.GraphicsWidgetAnchor, pg.GraphicsWidget):
+    def __init__(self, parent, rect):
+        pg.GraphicsWidget.__init__(self, parent)
+        pg.GraphicsWidgetAnchor.__init__(self)
+        self.item = QtWidgets.QGraphicsRectItem(rect, self)
+        brush = QtGui.QBrush(QtGui.QColor(10, 10, 10, 140))
+        self.item.setBrush(brush)
+
+
+class _BaseWaveform(pg.PlotWidget):
+    cursorMove = QtCore.pyqtSignal(float)
+
+    def __init__(self, name, width, precision, unit,
+                 parent=None, pen="r", stepMode="right", connect="finite"):
+        pg.PlotWidget.__init__(self,
+                               parent=parent,
+                               x=None,
+                               y=None,
+                               pen=pen,
+                               stepMode=stepMode,
+                               connect=connect)
+
+        self.setMinimumHeight(WAVEFORM_MIN_HEIGHT)
+        self.setMaximumHeight(WAVEFORM_MAX_HEIGHT)
+        self.setMenuEnabled(False)
+        self.setContextMenuPolicy(QtCore.Qt.ContextMenuPolicy.ActionsContextMenu)
+
+        self.name = name
+        self.width = width
+        self.precision = precision
+        self.unit = unit
+
+        self.x_data = []
+        self.y_data = []
+
+        self.plot_item = self.getPlotItem()
+        self.plot_item.hideButtons()
+        self.plot_item.hideAxis("top")
+        self.plot_item.getAxis("bottom").setStyle(showValues=False, tickLength=0)
+        self.plot_item.getAxis("left").setStyle(showValues=False, tickLength=0)
+        self.plot_item.setRange(yRange=(0, 1), padding=0.1)
+        self.plot_item.showGrid(x=True, y=True)
+
+        self.plot_data_item = self.plot_item.listDataItems()[0]
+        self.plot_data_item.setClipToView(True)
+
+        self.view_box = self.plot_item.getViewBox()
+        self.view_box.setMouseEnabled(x=True, y=False)
+        self.view_box.disableAutoRange(axis=pg.ViewBox.YAxis)
+        self.view_box.setLimits(xMin=0, minXRange=20)
+
+        self.title_label = pg.LabelItem(self.name, parent=self.plot_item)
+        self.title_label.anchor(itemPos=(0, 0), parentPos=(0, 0), offset=(0, 0))
+        self.title_label.setAttr('justify', 'left')
+        self.title_label.setZValue(10)
+
+        rect = self.title_label.boundingRect()
+        rect.setHeight(rect.height() * 2)
+        rect.setWidth(225)
+        self.label_bg = _BackgroundItem(parent=self.plot_item, rect=rect)
+        self.label_bg.anchor(itemPos=(0, 0), parentPos=(0, 0), offset=(0, 0))
+
+        self.cursor = pg.InfiniteLine()
+        self.cursor_y = None
+        self.addItem(self.cursor)
+
+        self.cursor_label = pg.LabelItem('', parent=self.plot_item)
+        self.cursor_label.anchor(itemPos=(0, 0), parentPos=(0, 0), offset=(0, 20))
+        self.cursor_label.setAttr('justify', 'left')
+        self.cursor_label.setZValue(10)
+
+    def setStoppedX(self, stopped_x):
+        self.stopped_x = stopped_x
+        self.view_box.setLimits(xMax=stopped_x)
+
+    def setData(self, data):
+        if len(data) == 0:
+            self.x_data, self.y_data = [], []
+        else:
+            self.x_data, self.y_data = zip(*data)
+
+    def onDataChange(self, data):
+        raise NotImplementedError
+
+    def onCursorMove(self, x):
+        self.cursor.setValue(x)
+        if len(self.x_data) < 1:
+            return
+        ind = bisect.bisect_left(self.x_data, x) - 1
+        dr = self.plot_data_item.dataRect()
+        self.cursor_y = None
+        if dr is not None and 0 <= ind < len(self.y_data):
+            self.cursor_y = self.y_data[ind]
+
+    def mouseMoveEvent(self, e):
+        if e.buttons() == QtCore.Qt.MouseButton.LeftButton \
+           and e.modifiers() == QtCore.Qt.KeyboardModifier.ShiftModifier:
+            drag = QtGui.QDrag(self)
+            mime = QtCore.QMimeData()
+            drag.setMimeData(mime)
+            pixmapi = QtWidgets.QApplication.style().standardIcon(
+                QtWidgets.QStyle.StandardPixmap.SP_FileIcon)
+            drag.setPixmap(pixmapi.pixmap(32))
+            drag.exec(QtCore.Qt.DropAction.MoveAction)
+        else:
+            super().mouseMoveEvent(e)
+
+    def wheelEvent(self, e):
+        if e.modifiers() & QtCore.Qt.KeyboardModifier.ControlModifier:
+            super().wheelEvent(e)
+        else:
+            e.ignore()
+
+
+    def mouseDoubleClickEvent(self, e):
+        pos = self.view_box.mapSceneToView(e.position())
+        self.cursorMove.emit(pos.x())
+
+
+class BitWaveform(_BaseWaveform):
+    def __init__(self, name, width, precision, unit, parent=None):
+        _BaseWaveform.__init__(self, name, width, precision, unit, parent)
+        self.plot_item.showGrid(x=True, y=False)
+        self._arrows = []
+
+    def onDataChange(self, data):
+        try:
+            self.setData(data)
+            for arw in self._arrows:
+                self.removeItem(arw)
+            self._arrows = []
+            l = len(data)
+            display_y = np.empty(l)
+            display_x = np.empty(l)
+            display_map = {
+                "X": 0.5,
+                "1": 1,
+                "0": 0
+            }
+            previous_y = None
+            for i, coord in enumerate(data):
+                x, y = coord
+                dis_y = display_map[y]
+                if previous_y == y:
+                    arw = pg.ArrowItem(pxMode=True, angle=90)
+                    self.addItem(arw)
+                    self._arrows.append(arw)
+                    arw.setPos(x, dis_y)
+                display_y[i] = dis_y
+                display_x[i] = x
+                previous_y = y
+            self.plot_data_item.setData(x=display_x, y=display_y)
+        except:
+            logger.error("Error when displaying waveform: %s", self.name, exc_info=True)
+            for arw in self._arrows:
+                self.removeItem(arw)
+            self.plot_data_item.setData(x=[], y=[])
+
+    def onCursorMove(self, x):
+        _BaseWaveform.onCursorMove(self, x)
+        if self.cursor_y is not None:
+            self.cursor_label.setText(self.cursor_y)
+        else:
+            self.cursor_label.setText("")
+
+
+class AnalogWaveform(_BaseWaveform):
+    def __init__(self, name, width, precision, unit, parent=None):
+        _BaseWaveform.__init__(self, name, width, precision, unit, parent)
+
+    def onDataChange(self, data):
+        try:
+            self.setData(data)
+            self.plot_data_item.setData(x=self.x_data, y=self.y_data)
+            if len(data) > 0:
+                max_y = max(self.y_data)
+                min_y = min(self.y_data)
+                self.plot_item.setRange(yRange=(min_y, max_y), padding=0.1)
+        except:
+            logger.error("Error when displaying waveform: %s", self.name, exc_info=True)
+            self.plot_data_item.setData(x=[], y=[])
+
+    def onCursorMove(self, x):
+        _BaseWaveform.onCursorMove(self, x)
+        if self.cursor_y is not None:
+            t = short_format(self.cursor_y, {"precision": self.precision, "unit": self.unit})
+        else:
+            t = ""
+        self.cursor_label.setText(t)
+
+
+class BitVectorWaveform(_BaseWaveform):
+    def __init__(self, name, width, precision, unit, parent=None):
+        _BaseWaveform.__init__(self, name, width, precision, parent)
+        self._labels = []
+        self._format_string = "{:0=" + str(math.ceil(width / 4)) + "X}"
+        self.view_box.sigTransformChanged.connect(self._update_labels)
+        self.plot_item.showGrid(x=True, y=False)
+
+    def _update_labels(self):
+        for label in self._labels:
+            self.removeItem(label)
+        xmin, xmax = self.view_box.viewRange()[0]
+        left_label_i = bisect.bisect_left(self.x_data, xmin)
+        right_label_i = bisect.bisect_right(self.x_data, xmax) + 1
+        for i, j in itertools.pairwise(range(left_label_i, right_label_i)):
+            x1 = self.x_data[i]
+            x2 = self.x_data[j] if j < len(self.x_data) else self.stopped_x
+            lbl = self._labels[i]
+            bounds = lbl.boundingRect()
+            bounds_view = self.view_box.mapSceneToView(bounds)
+            if bounds_view.boundingRect().width() < x2 - x1:
+                self.addItem(lbl)
+
+    def onDataChange(self, data):
+        try:
+            self.setData(data)
+            for lbl in self._labels:
+                self.plot_item.removeItem(lbl)
+            self._labels = []
+            l = len(data)
+            display_x = np.empty(l * 2)
+            display_y = np.empty(l * 2)
+            for i, coord in enumerate(data):
+                x, y = coord
+                display_x[i * 2] = x
+                display_x[i * 2 + 1] = x
+                display_y[i * 2] = 0
+                display_y[i * 2 + 1] = int(int(y) != 0)
+                lbl = pg.TextItem(
+                    self._format_string.format(int(y, 2)), anchor=(0, 0.5))
+                lbl.setPos(x, 0.5)
+                lbl.setTextWidth(100)
+                self._labels.append(lbl)
+            self.plot_data_item.setData(x=display_x, y=display_y)
+        except:
+            logger.error("Error when displaying waveform: %s", self.name, exc_info=True)
+            for lbl in self._labels:
+                self.plot_item.removeItem(lbl)
+            self.plot_data_item.setData(x=[], y=[])
+
+    def onCursorMove(self, x):
+        _BaseWaveform.onCursorMove(self, x)
+        if self.cursor_y is not None:
+            t = self._format_string.format(int(self.cursor_y, 2))
+        else:
+            t = ""
+        self.cursor_label.setText(t)
+
+
+class LogWaveform(_BaseWaveform):
+    def __init__(self, name, width, precision, unit, parent=None):
+        _BaseWaveform.__init__(self, name, width, precision, parent)
+        self.plot_data_item.opts['pen'] = None
+        self.plot_data_item.opts['symbol'] = 'x'
+        self._labels = []
+        self.plot_item.showGrid(x=True, y=False)
+
+    def onDataChange(self, data):
+        try:
+            self.setData(data)
+            for lbl in self._labels:
+                self.plot_item.removeItem(lbl)
+            self._labels = []
+            self.plot_data_item.setData(
+                x=self.x_data, y=np.ones(len(self.x_data)))
+            if len(data) == 0:
+                return
+            old_x = data[0][0]
+            old_msg = data[0][1]
+            for x, msg in data[1:]:
+                if x == old_x:
+                    old_msg += "\n" + msg
+                else:
+                    lbl = pg.TextItem(old_msg)
+                    self.addItem(lbl)
+                    self._labels.append(lbl)
+                    lbl.setPos(old_x, 1)
+                    old_msg = msg
+                    old_x = x
+            lbl = pg.TextItem(old_msg)
+            self.addItem(lbl)
+            self._labels.append(lbl)
+            lbl.setPos(old_x, 1)
+        except:
+            logger.error("Error when displaying waveform: %s", self.name, exc_info=True)
+            for lbl in self._labels:
+                self.plot_item.removeItem(lbl)
+            self.plot_data_item.setData(x=[], y=[])
+
+
+# pg.GraphicsView ignores dragEnterEvent but not dragLeaveEvent
+# https://github.com/pyqtgraph/pyqtgraph/blob/1e98704eac6b85de9c35371079f561042e88ad68/pyqtgraph/widgets/GraphicsView.py#L388
+class _RefAxis(pg.PlotWidget):
+    def dragLeaveEvent(self, ev):
+        ev.ignore()
+
+
+class _WaveformView(QtWidgets.QWidget):
+    cursorMove = QtCore.pyqtSignal(float)
+
+    def __init__(self, parent):
+        QtWidgets.QWidget.__init__(self, parent=parent)
+
+        self._stopped_x = None
+        self._timescale = 1
+        self._cursor_x = 0
+
+        layout = QtWidgets.QVBoxLayout()
+        layout.setContentsMargins(0, 0, 0, 0)
+        layout.setSpacing(0)
+        self.setLayout(layout)
+
+        self._ref_axis = _RefAxis()
+        self._ref_axis.hideAxis("bottom")
+        self._ref_axis.hideAxis("left")
+        self._ref_axis.hideButtons()
+        self._ref_axis.setFixedHeight(45)
+        self._ref_axis.setMenuEnabled(False)
+        self._top = pg.AxisItem("top")
+        self._top.setScale(1e-12)
+        self._top.setLabel(units="s")
+        self._ref_axis.setAxisItems({"top": self._top})
+        layout.addWidget(self._ref_axis)
+
+        self._ref_vb = self._ref_axis.getPlotItem().getViewBox()
+        self._ref_vb.setFixedHeight(0)
+        self._ref_vb.setMouseEnabled(x=True, y=False)
+        self._ref_vb.setLimits(xMin=0)
+
+        scroll_area = VDragScrollArea(self)
+        scroll_area.setWidgetResizable(True)
+        scroll_area.setContentsMargins(0, 0, 0, 0)
+        scroll_area.setFrameShape(QtWidgets.QFrame.Shape.NoFrame)
+        scroll_area.setVerticalScrollBarPolicy(
+            QtCore.Qt.ScrollBarPolicy.ScrollBarAlwaysOff)
+        layout.addWidget(scroll_area)
+
+        self._splitter = VDragDropSplitter(parent=scroll_area)
+        self._splitter.setHandleWidth(1)
+        scroll_area.setWidget(self._splitter)
+
+        self.cursorMove.connect(self.onCursorMove)
+
+        self.confirm_delete_dialog = QtWidgets.QMessageBox(self)
+        self.confirm_delete_dialog.setIcon(
+            QtWidgets.QMessageBox.Icon.Warning
+        )
+        self.confirm_delete_dialog.setText("Delete all waveforms?")
+        self.confirm_delete_dialog.setStandardButtons(
+            QtWidgets.QMessageBox.StandardButton.Ok | 
+            QtWidgets.QMessageBox.StandardButton.Cancel
+        )
+        self.confirm_delete_dialog.setDefaultButton(
+            QtWidgets.QMessageBox.StandardButton.Ok
+        )
+
+    def setModel(self, model):
+        self._model = model
+        self._model.dataChanged.connect(self.onDataChange)
+        self._model.rowsInserted.connect(self.onInsert)
+        self._model.rowsRemoved.connect(self.onRemove)
+        self._model.rowsMoved.connect(self.onMove)
+        self._splitter.dropped.connect(self._model.move)
+        self.confirm_delete_dialog.accepted.connect(self._model.clear)
+
+    def setTimescale(self, timescale):
+        self._timescale = timescale
+        self._top.setScale(1e-12 * timescale)
+
+    def setStoppedX(self, stopped_x):
+        self._stopped_x = stopped_x
+        self._ref_vb.setLimits(xMax=stopped_x)
+        self._ref_vb.setRange(xRange=(0, stopped_x))
+        for i in range(self._model.rowCount()):
+            self._splitter.widget(i).setStoppedX(stopped_x)
+
+    def resetZoom(self):
+        if self._stopped_x is not None:
+            self._ref_vb.setRange(xRange=(0, self._stopped_x))
+
+    def onDataChange(self, top, bottom, roles):
+        self.cursorMove.emit(0)
+        first = top.row()
+        last = bottom.row()
+        data_row = self._model.headers.index("data")
+        for i in range(first, last + 1):
+            data = self._model.data(self._model.index(i, data_row))
+            self._splitter.widget(i).onDataChange(data)
+
+    def onInsert(self, parent, first, last):
+        for i in range(first, last + 1):
+            w = self._create_waveform(i)
+            self._splitter.insertWidget(i, w)
+        self._resize()
+
+    def onRemove(self, parent, first, last):
+        for i in reversed(range(first, last + 1)):
+            w = self._splitter.widget(i)
+            w.deleteLater()
+        self._splitter.refresh()
+        self._resize()
+
+    def onMove(self, src_parent, src_start, src_end, dest_parent, dest_row):
+        w = self._splitter.widget(src_start)
+        self._splitter.insertWidget(dest_row, w)
+
+    def onCursorMove(self, x):
+        self._cursor_x = x
+        for i in range(self._model.rowCount()):
+            self._splitter.widget(i).onCursorMove(x)
+
+    def _create_waveform(self, row):
+        name, ty, width, precision, unit = (
+            self._model.data(self._model.index(row, i)) for i in range(5))
+        waveform_cls = {
+            WaveformType.BIT: BitWaveform,
+            WaveformType.VECTOR: BitVectorWaveform,
+            WaveformType.ANALOG: AnalogWaveform,
+            WaveformType.LOG: LogWaveform
+        }[ty]
+        w = waveform_cls(name, width, precision, unit, parent=self._splitter)
+        w.setXLink(self._ref_vb)
+        w.setStoppedX(self._stopped_x)
+        w.cursorMove.connect(self.cursorMove)
+        w.onCursorMove(self._cursor_x)
+        action = QtGui.QAction("Delete waveform", w)
+        action.triggered.connect(lambda: self._delete_waveform(w))
+        w.addAction(action)
+        action = QtGui.QAction("Delete all waveforms", w)
+        action.triggered.connect(self.confirm_delete_dialog.open)
+        w.addAction(action)
+        return w
+
+    def _delete_waveform(self, waveform):
+        row = self._splitter.indexOf(waveform)
+        self._model.pop(row)
+
+    def _resize(self):
+        self._splitter.setFixedHeight(
+            int((WAVEFORM_MIN_HEIGHT + WAVEFORM_MAX_HEIGHT) * self._model.rowCount() / 2))
+
+
+class _WaveformModel(QtCore.QAbstractTableModel):
+    def __init__(self):
+        self.backing_struct = []
+        self.headers = ["name", "type", "width", "precision", "unit", "data"]
+        QtCore.QAbstractTableModel.__init__(self)
+
+    def rowCount(self, parent=QtCore.QModelIndex()):
+        return len(self.backing_struct)
+
+    def columnCount(self, parent=QtCore.QModelIndex()):
+        return len(self.headers)
+
+    def data(self, index, role=QtCore.Qt.ItemDataRole.DisplayRole):
+        if index.isValid():
+            return self.backing_struct[index.row()][index.column()]
+        return None
+
+    def extend(self, data):
+        length = len(self.backing_struct)
+        len_data = len(data)
+        self.beginInsertRows(QtCore.QModelIndex(), length, length + len_data - 1)
+        self.backing_struct.extend(data)
+        self.endInsertRows()
+
+    def pop(self, row):
+        self.beginRemoveRows(QtCore.QModelIndex(), row, row)
+        self.backing_struct.pop(row)
+        self.endRemoveRows()
+
+    def move(self, src, dest):
+        if src == dest:
+            return
+        if src < dest:
+            dest, src = src, dest
+        self.beginMoveRows(QtCore.QModelIndex(), src, src, QtCore.QModelIndex(), dest)
+        self.backing_struct.insert(dest, self.backing_struct.pop(src))
+        self.endMoveRows()
+
+    def clear(self):
+        self.beginRemoveRows(QtCore.QModelIndex(), 0, len(self.backing_struct) - 1)
+        self.backing_struct.clear()
+        self.endRemoveRows()
+
+    def export_list(self):
+        return [[row[0], row[1].value, *row[2:5]] for row in self.backing_struct]
+
+    def import_list(self, channel_list):
+        self.clear()
+        data = [[row[0], WaveformType(row[1]), *row[2:5], []] for row in channel_list]
+        self.extend(data)
+
+    def update_data(self, waveform_data, top, bottom):
+        name_col = self.headers.index("name")
+        data_col = self.headers.index("data")
+        for i in range(top, bottom):
+            name = self.data(self.index(i, name_col))
+            self.backing_struct[i][data_col] = waveform_data.get(name, [])
+            self.dataChanged.emit(self.index(i, data_col),
+                                  self.index(i, data_col))
+
+    def update_all(self, waveform_data):
+        self.update_data(waveform_data, 0, self.rowCount())
+
+
+class _CursorTimeControl(QtWidgets.QLineEdit):
+    submit = QtCore.pyqtSignal(float)
+
+    def __init__(self, parent):
+        QtWidgets.QLineEdit.__init__(self, parent=parent)
+        self._text = ""
+        self._value = 0
+        self._timescale = 1
+        self.setDisplayValue(0)
+        self.textChanged.connect(self._onTextChange)
+        self.returnPressed.connect(self._onReturnPress)
+
+    def setTimescale(self, timescale):
+        self._timescale = timescale
+
+    def _onTextChange(self, text):
+        self._text = text
+
+    def setDisplayValue(self, value):
+        self._value = value
+        self._text = pg.siFormat(value * 1e-12 * self._timescale,
+                                 suffix="s",
+                                 allowUnicode=False,
+                                 precision=15)
+        self.setText(self._text)
+
+    def _setValueFromText(self, text):
+        try:
+            self._value = pg.siEval(text) * (1e12 / self._timescale)
+        except:
+            logger.error("Error when parsing cursor time input", exc_info=True)
+
+    def _onReturnPress(self):
+        self._setValueFromText(self._text)
+        self.setDisplayValue(self._value)
+        self.submit.emit(self._value)
+        self.clearFocus()
+
+
+class Model(DictSyncTreeSepModel):
+    def __init__(self, init):
+        DictSyncTreeSepModel.__init__(self, "/", ["Channels"], init)
+
+    def clear(self):
+        for k in self.backing_store:
+            self._del_item(self, k.split(self.separator))
+        self.backing_store.clear()
+
+    def update(self, d):
+        for k, v in d.items():
+            self[k] = v
+
+
+class _AddChannelDialog(QtWidgets.QDialog):
+    def __init__(self, parent, model):
+        QtWidgets.QDialog.__init__(self, parent=parent)
+        self.setContextMenuPolicy(QtCore.Qt.ContextMenuPolicy.ActionsContextMenu)
+        self.setWindowTitle("Add channels")
+
+        layout = QtWidgets.QVBoxLayout()
+        self.setLayout(layout)
+
+        self._model = model
+        self._tree_view = QtWidgets.QTreeView()
+        self._tree_view.setHeaderHidden(True)
+        self._tree_view.setSelectionBehavior(
+            QtWidgets.QAbstractItemView.SelectionBehavior.SelectItems)
+        self._tree_view.setSelectionMode(
+            QtWidgets.QAbstractItemView.SelectionMode.ExtendedSelection)
+        self._tree_view.setModel(self._model)
+        layout.addWidget(self._tree_view)
+
+        self._button_box = QtWidgets.QDialogButtonBox(
+            QtWidgets.QDialogButtonBox.StandardButton.Ok | QtWidgets.QDialogButtonBox.StandardButton.Cancel
+        )
+        self._button_box.setCenterButtons(True)
+        self._button_box.accepted.connect(self.add_channels)
+        self._button_box.rejected.connect(self.reject)
+        layout.addWidget(self._button_box)
+
+    def add_channels(self):
+        selection = self._tree_view.selectedIndexes()
+        channels = []
+        for select in selection:
+            key = self._model.index_to_key(select)
+            if key is not None:
+                channels.append([key, *self._model[key].ref, []])
+        self.channels = channels
+        self.accept()
+
+
+class WaveformDock(QtWidgets.QDockWidget):
+    def __init__(self, timeout, timer, timer_backoff):
+        QtWidgets.QDockWidget.__init__(self, "Waveform")
+        self.setObjectName("Waveform")
+        self.setFeatures(
+            self.DockWidgetFeature.DockWidgetMovable | self.DockWidgetFeature.DockWidgetFloatable)
+
+        self._channel_model = Model({})
+        self._waveform_model = _WaveformModel()
+
+        self._ddb = None
+        self._dump = None
+
+        self._waveform_data = {
+            "timescale": 1,
+            "stopped_x": None,
+            "logs": dict(),
+            "data": dict(),
+        }
+
+        self._current_dir = os.getcwd()
+
+        self.proxy_client = ProxyClient(self.on_dump_receive,
+                                        timeout,
+                                        timer,
+                                        timer_backoff)
+
+        grid = LayoutWidget()
+        self.setWidget(grid)
+
+        self._menu_btn = QtWidgets.QPushButton()
+        self._menu_btn.setIcon(
+            QtWidgets.QApplication.style().standardIcon(
+                QtWidgets.QStyle.StandardPixmap.SP_FileDialogStart))
+        grid.addWidget(self._menu_btn, 0, 0)
+
+        self._request_dump_btn = QtWidgets.QToolButton()
+        self._request_dump_btn.setToolTip("Fetch analyzer data from device")
+        self._request_dump_btn.setIcon(
+            QtWidgets.QApplication.style().standardIcon(
+                QtWidgets.QStyle.StandardPixmap.SP_BrowserReload))
+        self._request_dump_btn.clicked.connect(
+            lambda: asyncio.ensure_future(exc_to_warning(self.proxy_client.trigger_proxy_task())))
+        grid.addWidget(self._request_dump_btn, 0, 1)
+
+        self._add_channel_dialog = _AddChannelDialog(self, self._channel_model)
+        self._add_channel_dialog.accepted.connect(self._add_channels)
+
+        self._add_btn = QtWidgets.QToolButton()
+        self._add_btn.setToolTip("Add channels...")
+        self._add_btn.setIcon(
+            QtWidgets.QApplication.style().standardIcon(
+                QtWidgets.QStyle.StandardPixmap.SP_FileDialogListView))
+        self._add_btn.clicked.connect(self._add_channel_dialog.open)
+        grid.addWidget(self._add_btn, 0, 2)
+
+        self._file_menu = QtWidgets.QMenu()
+        self._add_async_action("Open trace...", self.load_trace)
+        self._add_async_action("Save trace...", self.save_trace)
+        self._add_async_action("Save trace as VCD...", self.save_vcd)
+        self._add_async_action("Open channel list...", self.load_channels)
+        self._add_async_action("Save channel list...", self.save_channels)
+        self._menu_btn.setMenu(self._file_menu)
+
+        self._waveform_view = _WaveformView(self)
+        self._waveform_view.setModel(self._waveform_model)
+        grid.addWidget(self._waveform_view, 1, 0, colspan=12)
+
+        self._reset_zoom_btn = QtWidgets.QToolButton()
+        self._reset_zoom_btn.setToolTip("Reset zoom")
+        self._reset_zoom_btn.setIcon(
+            QtWidgets.QApplication.style().standardIcon(
+                QtWidgets.QStyle.StandardPixmap.SP_TitleBarMaxButton))
+        self._reset_zoom_btn.clicked.connect(self._waveform_view.resetZoom)
+        grid.addWidget(self._reset_zoom_btn, 0, 3)
+
+        self._cursor_control = _CursorTimeControl(self)
+        self._waveform_view.cursorMove.connect(self._cursor_control.setDisplayValue)
+        self._cursor_control.submit.connect(self._waveform_view.onCursorMove)
+        grid.addWidget(self._cursor_control, 0, 4, colspan=6)
+
+    def _add_async_action(self, label, coro):
+        action = QtGui.QAction(label, self)
+        action.triggered.connect(
+            lambda: asyncio.ensure_future(exc_to_warning(coro())))
+        self._file_menu.addAction(action)
+
+    def _add_channels(self):
+        channels = self._add_channel_dialog.channels
+        count = self._waveform_model.rowCount()
+        self._waveform_model.extend(channels)
+        self._waveform_model.update_data(self._waveform_data['data'],
+                                         count,
+                                         count + len(channels))
+
+    def on_dump_receive(self, dump):
+        self._dump = dump
+        decoded_dump = comm_analyzer.decode_dump(dump)
+        waveform_data = comm_analyzer.decoded_dump_to_waveform_data(self._ddb, decoded_dump)
+        self._waveform_data.update(waveform_data)
+        self._channel_model.update(self._waveform_data['logs'])
+        self._waveform_model.update_all(self._waveform_data['data'])
+        self._waveform_view.setStoppedX(self._waveform_data['stopped_x'])
+        self._waveform_view.setTimescale(self._waveform_data['timescale'])
+        self._cursor_control.setTimescale(self._waveform_data['timescale'])
+
+    async def load_trace(self):
+        try:
+            filename = await get_open_file_name(
+                self,
+                "Load Analyzer Trace",
+                self._current_dir,
+                "All files (*.*)")
+        except asyncio.CancelledError:
+            return
+        self._current_dir = os.path.dirname(filename)
+        try:
+            with open(filename, 'rb') as f:
+                dump = f.read()
+            self.on_dump_receive(dump)
+        except:
+            logger.error("Failed to open analyzer trace", exc_info=True)
+
+    async def save_trace(self):
+        if self._dump is None:
+            logger.error("No analyzer trace stored in dashboard, "
+                         "try loading from file or fetching from device")
+            return
+        try:
+            filename = await get_save_file_name(
+                self,
+                "Save Analyzer Trace",
+                self._current_dir,
+                "All files (*.*)")
+        except asyncio.CancelledError:
+            return
+        self._current_dir = os.path.dirname(filename)
+        try:
+            with open(filename, 'wb') as f:
+                f.write(self._dump)
+        except:
+            logger.error("Failed to save analyzer trace", exc_info=True)
+
+    async def save_vcd(self):
+        if self._dump is None:
+            logger.error("No analyzer trace stored in dashboard, "
+                         "try loading from file or fetching from device")
+            return
+        try:
+            filename = await get_save_file_name(
+                self,
+                "Save VCD",
+                self._current_dir,
+                "All files (*.*)")
+        except asyncio.CancelledError:
+            return
+        self._current_dir = os.path.dirname(filename)
+        try:
+            decoded_dump = comm_analyzer.decode_dump(self._dump)
+            with open(filename, 'w') as f:
+                comm_analyzer.decoded_dump_to_vcd(f, self._ddb, decoded_dump)
+        except:
+            logger.error("Failed to save trace as VCD", exc_info=True)
+
+    async def load_channels(self):
+        try:
+            filename = await get_open_file_name(
+                self,
+                "Open channel list",
+                self._current_dir,
+                "PYON files (*.pyon);;All files (*.*)")
+        except asyncio.CancelledError:
+            return
+        self._current_dir = os.path.dirname(filename)
+        try:
+            channel_list = pyon.load_file(filename)
+            self._waveform_model.import_list(channel_list)
+            self._waveform_model.update_all(self._waveform_data['data'])
+        except:
+            logger.error("Failed to open channel list", exc_info=True)
+
+    async def save_channels(self):
+        try:
+            filename = await get_save_file_name(
+                self,
+                "Save channel list",
+                self._current_dir,
+                "PYON files (*.pyon);;All files (*.*)")
+        except asyncio.CancelledError:
+            return
+        self._current_dir = os.path.dirname(filename)
+        try:
+            channel_list = self._waveform_model.export_list()
+            pyon.store_file(filename, channel_list)
+        except:
+            logger.error("Failed to save channel list", exc_info=True)
+
+    def _process_ddb(self):
+        channel_list = comm_analyzer.get_channel_list(self._ddb)
+        self._channel_model.clear()
+        self._channel_model.update(channel_list)
+        desc = self._ddb.get("core_analyzer")
+        if desc is not None:
+            addr = desc["host"]
+            port_proxy = desc.get("port_proxy", 1385)
+            port = desc.get("port", 1386)
+            self.proxy_client.update_address(addr, port, port_proxy)
+        else:
+            self.proxy_client.update_address(None, None, None)
+
+    def init_ddb(self, ddb):
+        self._ddb = ddb
+        self._process_ddb()
+        return ddb
+
+    def notify_ddb(self, mod):
+        self._process_ddb()
+
+    async def stop(self):
+        if self.proxy_client is not None:
+            await self.proxy_client.close()

artiq/examples/artiq_ipython_notebook.ipynb

@@ -127,7 +127,7 @@
     "# let's connect to the master\n",
     "\n",
     "schedule, exps, datasets = [\n",
-    "    Client(\"::1\", 3251, \"master_\" + i) for i in\n",
+    "    Client(\"::1\", 3251, i) for i in\n",
     "    \"schedule experiment_db dataset_db\".split()]\n",
     "\n",
     "print(\"current schedule\")\n",

artiq/examples/kasli_shuttler/kasli_shuttler.json

@@ -6,6 +6,7 @@
     "peripherals": [
         {
             "type": "shuttler",
+            "hw_rev": "v1.1",
             "ports": [0]
         },
         {

artiq/examples/no_hardware/repository/custom_applet.py

@@ -1,4 +1,4 @@
-from PyQt5 import QtWidgets
+from PyQt6 import QtWidgets
 
 from artiq.applets.simple import SimpleApplet
 

artiq/examples/no_hardware/repository/interactive.py

@@ -0,0 +1,34 @@
+from artiq.experiment import *
+
+
+class InteractiveDemo(EnvExperiment):
+    def build(self):
+        pass
+
+    def run(self):
+        print("Waiting for user input...")
+        with self.interactive(title="Interactive Demo") as interactive:
+            interactive.setattr_argument("pyon_value",
+                                         PYONValue(self.get_dataset("foo", default=42)))
+            interactive.setattr_argument("number", NumberValue(42e-6,
+                                         unit="us",
+                                         precision=4))
+            interactive.setattr_argument("integer", NumberValue(42,
+                                         step=1, precision=0))
+            interactive.setattr_argument("string", StringValue("Hello World"))
+            interactive.setattr_argument("scan", Scannable(global_max=400,
+                                         default=NoScan(325),
+                                         precision=6))
+            interactive.setattr_argument("boolean", BooleanValue(True), "Group")
+            interactive.setattr_argument("enum",
+                                         EnumerationValue(["foo", "bar", "quux"], "foo"),
+                                         "Group")
+        print("Done! Values:")
+        print(interactive.pyon_value)
+        print(interactive.boolean)
+        print(interactive.enum)
+        print(interactive.number, type(interactive.number))
+        print(interactive.integer, type(interactive.integer))
+        print(interactive.string)
+        for i in interactive.scan:
+            print(i)

artiq/firmware/Cargo.lock

@@ -1,10 +1,50 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+# And yet, manual edits have been made. Crate yanking should be illegal.
+version = 3
+
+[[package]]
+name = "addr2line"
+version = "0.16.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3e61f2b7f93d2c7d2b08263acaa4a363b3e276806c68af6134c44f523bf1aacd"
+dependencies = [
+ "cpp_demangle",
+ "fallible-iterator",
+ "gimli",
+ "object",
+ "rustc-demangle",
+ "smallvec",
+]
+
+[[package]]
+name = "adler"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ee2a4ec343196209d6594e19543ae87a39f96d5534d7174822a3ad825dd6ed7e"
+
+[[package]]
+name = "adler"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
+
+[[package]]
+name = "ahash"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "efa60d2eadd8b12a996add391db32bd1153eac697ba4869660c0016353611426"
+dependencies = [
+ "getrandom",
+ "once_cell",
+ "version_check",
+]
+
 [[package]]
 name = "aho-corasick"
-version = "0.7.18"
+version = "0.7.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e37cfd5e7657ada45f742d6e99ca5788580b5c529dc78faf11ece6dc702656f"
+checksum = "cc936419f96fa211c1b9166887b38e5e40b19958e5b895be7c1f93adec7071ac"
 dependencies = [
  "memchr",
 ]
@@ -30,9 +70,9 @@ dependencies = [
 
 [[package]]
 name = "bit_field"
-version = "0.10.1"
+version = "0.10.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dcb6dd1c2376d2e096796e234a70e17e94cc2d5d54ff8ce42b28cef1d0d359a4"
+checksum = "dc827186963e592360843fb5ba4b973e145841266c1357f7180c43526f2e5b61"
 
 [[package]]
 name = "bitflags"
@@ -72,12 +112,30 @@ dependencies = [
 name = "bootloader"
 version = "0.0.0"
 dependencies = [
+ "addr2line",
+ "ahash",
  "board_misoc",
  "build_misoc",
  "byteorder",
+ "cc",
+ "compiler_builtins",
  "crc",
+ "dlmalloc",
+ "fortanix-sgx-abi",
+ "getopts",
+ "getrandom",
+ "hashbrown",
+ "hermit-abi",
+ "libc 0.2.99",
+ "miniz_oxide 0.4.0",
+ "object",
+ "once_cell",
  "riscv",
+ "rustc-demangle",
  "smoltcp",
+ "unicode-width",
+ "version_check",
+ "wasi",
 ]
 
 [[package]]
@@ -98,9 +156,9 @@ checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
 
 [[package]]
 name = "cc"
-version = "1.0.70"
+version = "1.0.69"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d26a6ce4b6a484fa3edb70f7efa6fc430fd2b87285fe8b84304fd0936faa0dc0"
+checksum = "e70cc2f62c6ce1868963827bd677764c62d07c3d9a3e1fb1177ee1a9ab199eb2"
 
 [[package]]
 name = "cfg-if"
@@ -116,9 +174,18 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "compiler_builtins"
-version = "0.1.39"
+version = "0.1.49"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3748f82c7d366a0b4950257d19db685d4958d2fa27c6d164a3f069fec42b748b"
+checksum = "20b1438ef42c655665a8ab2c1c6d605a305f031d38d9be689ddfef41a20f3aa2"
+
+[[package]]
+name = "cpp_demangle"
+version = "0.3.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eeaa953eaad386a53111e47172c2fedba671e5684c8dd601a5f474f4f118710f"
+dependencies = [
+ "cfg-if 1.0.0",
+]
 
 [[package]]
 name = "crc"
@@ -129,12 +196,30 @@ dependencies = [
  "build_const",
 ]
 
+[[package]]
+name = "crc32fast"
+version = "1.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b3855a8a784b474f333699ef2bbca9db2c4a1f6d9088a90a2d25b1eb53111eaa"
+dependencies = [
+ "cfg-if 1.0.0",
+]
+
 [[package]]
 name = "cslice"
 version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0f8cb7306107e4b10e64994de6d3274bd08996a7c1322a27b86482392f96be0a"
 
+[[package]]
+name = "dlmalloc"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "332570860c2edf2d57914987bf9e24835425f75825086b6ba7d1e6a3e4f1f254"
+dependencies = [
+ "libc 0.2.99",
+]
+
 [[package]]
 name = "dyld"
 version = "0.0.0"
@@ -143,7 +228,6 @@ version = "0.0.0"
 name = "eh"
 version = "0.0.0"
 dependencies = [
- "compiler_builtins",
  "cslice",
  "libc 0.1.0",
  "unwind",
@@ -166,12 +250,82 @@ dependencies = [
  "synstructure",
 ]
 
+[[package]]
+name = "fallible-iterator"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4443176a9f2c162692bd3d352d745ef9413eec5782a80d8fd6f8a1ac692a07f7"
+
+[[package]]
+name = "flate2"
+version = "1.0.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5f54427cfd1c7829e2a139fcefea601bf088ebca651d2bf53ebc600eac295dae"
+dependencies = [
+ "crc32fast",
+ "miniz_oxide 0.7.2",
+]
+
+[[package]]
+name = "fortanix-sgx-abi"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c56c422ef86062869b2d57ae87270608dc5929969dd130a6e248979cf4fb6ca6"
+
 [[package]]
 name = "fringe"
 version = "1.2.1"
-source = "git+https://git.m-labs.hk/M-Labs/libfringe.git?rev=3ecbe5#3ecbe53f7644b18ee46ebd5b2ca12c9cbceec43a"
+source = "git+https://git.m-labs.hk/M-Labs/libfringe.git?rev=53a964#53a964a63d2d384b22ae1949a471a732003a30b9"
 dependencies = [
- "libc 0.2.101",
+ "libc 0.2.99",
+]
+
+[[package]]
+name = "getopts"
+version = "0.2.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "14dbbfd5c71d70241ecf9e6f13737f7b5ce823821063188d7e46c41d371eebd5"
+dependencies = [
+ "unicode-width",
+]
+
+[[package]]
+name = "getrandom"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ee8025cf36f917e6a52cce185b7c7177689b838b7ec138364e50cc2277a56cf4"
+dependencies = [
+ "cfg-if 0.1.10",
+ "libc 0.2.99",
+ "wasi",
+]
+
+[[package]]
+name = "gimli"
+version = "0.25.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f0a01e0497841a3b2db4f8afa483cce65f7e96a3498bd6c541734792aeac8fe7"
+dependencies = [
+ "fallible-iterator",
+ "stable_deref_trait",
+]
+
+[[package]]
+name = "hashbrown"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "362385356d610bd1e5a408ddf8d022041774b683f345a1d2cfcb4f60f8ae2db5"
+dependencies = [
+ "ahash",
+]
+
+[[package]]
+name = "hermit-abi"
+version = "0.1.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "62b467343b94ba476dcb2500d242dadbb39557df889310ac77c5d99100aaac33"
+dependencies = [
+ "libc 0.2.99",
 ]
 
 [[package]]
@@ -212,9 +366,9 @@ version = "0.1.0"
 
 [[package]]
 name = "libc"
-version = "0.2.101"
+version = "0.2.99"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3cb00336871be5ed2c8ed44b60ae9959dc5b9f08539422ed43f09e34ecaeba21"
+checksum = "a7f823d141fe0a24df1e23b4af4e3c7ba9e5966ec514ea068c93024aa7deb765"
 
 [[package]]
 name = "log"
@@ -258,6 +412,40 @@ version = "2.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "308cc39be01b73d0d18f82a0e7b2a3df85245f84af96fdddc5d202d27e47b86a"
 
+[[package]]
+name = "miniz_oxide"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "be0f75932c1f6cfae3c04000e40114adf955636e19040f9c0a2c380702aa1c7f"
+dependencies = [
+ "adler 0.2.3",
+]
+
+[[package]]
+name = "miniz_oxide"
+version = "0.7.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9d811f3e15f28568be3407c8e7fdb6514c1cda3cb30683f15b6a1a1dc4ea14a7"
+dependencies = [
+ "adler 1.0.2",
+]
+
+[[package]]
+name = "object"
+version = "0.26.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "39f37e50073ccad23b6d09bcb5b263f4e76d3bb6038e4a3c08e52162ffa8abc2"
+dependencies = [
+ "flate2",
+ "memchr",
+]
+
+[[package]]
+name = "once_cell"
+version = "1.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "692fcb63b64b1758029e0a96ee63e049ce8c5948587f2f7208df04625e5f6b56"
+
 [[package]]
 name = "proto_artiq"
 version = "0.0.0"
@@ -280,9 +468,9 @@ checksum = "7a6e920b65c65f10b2ae65c831a81a073a89edd28c7cce89475bff467ab4167a"
 
 [[package]]
 name = "regex"
-version = "1.5.4"
+version = "1.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d07a8629359eb56f1e2fb1652bb04212c072a87ba68546a04065d525673ac461"
+checksum = "8b1f693b24f6ac912f4893ef08244d70b6067480d2f1a46e950c9691e6749d1d"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -291,9 +479,9 @@ dependencies = [
 
 [[package]]
 name = "regex-syntax"
-version = "0.6.25"
+version = "0.6.29"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f497285884f3fcff424ffc933e56d7cbca511def0c9831a7f9b5f6153e3cc89b"
+checksum = "f162c6dd7b008981e4d40210aca20b4bd0f9b60ca9271061b07f78537722f2e1"
 
 [[package]]
 name = "riscv"
@@ -342,6 +530,12 @@ dependencies = [
  "unwind_backtrace",
 ]
 
+[[package]]
+name = "rustc-demangle"
+version = "0.1.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7ef03e0a2b150c7a90d01faf6254c9c48a41e95fb2a8c2ac1c6f0d2b9aefc342"
+
 [[package]]
 name = "rustc_version"
 version = "0.2.3"
@@ -382,6 +576,12 @@ version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
 
+[[package]]
+name = "smallvec"
+version = "1.13.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3c5e1a9a646d36c3599cd173a41282daf47c44583ad367b8e6837255952e5c67"
+
 [[package]]
 name = "smoltcp"
 version = "0.8.2"
@@ -393,6 +593,12 @@ dependencies = [
  "managed 0.8.0",
 ]
 
+[[package]]
+name = "stable_deref_trait"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a8f112729512f8e442d81f95a8a7ddf2b7c6b8a1a6f509a95864142b30cab2d3"
+
 [[package]]
 name = "syn"
 version = "0.11.11"
@@ -433,6 +639,12 @@ dependencies = [
  "log",
 ]
 
+[[package]]
+name = "unicode-width"
+version = "0.1.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9337591893a19b88d8d87f2cec1e73fad5cdfd10e5a6f349f498ad6ea2ffb1e3"
+
 [[package]]
 name = "unicode-xid"
 version = "0.0.4"
@@ -454,3 +666,15 @@ dependencies = [
  "libc 0.1.0",
  "unwind",
 ]
+
+[[package]]
+name = "version_check"
+version = "0.9.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5fecdca9a5291cc2b8dcf7dc02453fee791a280f3743cb0905f8822ae463b3fe"
+
+[[package]]
+name = "wasi"
+version = "0.9.0+wasi-snapshot-preview1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"

artiq/firmware/bootloader/Cargo.toml

@@ -13,8 +13,30 @@ path = "main.rs"
 build_misoc = { path = "../libbuild_misoc" }
 
 [dependencies]
-byteorder = { version = "1.0", default-features = false }
+byteorder = { version = "=1.4.3", default-features = false }
 crc = { version = "1.7", default-features = false }
 board_misoc = { path = "../libboard_misoc", features = ["uart_console", "smoltcp"] }
 smoltcp = { version = "0.8.2", default-features = false, features = ["medium-ethernet", "proto-ipv4", "proto-ipv6", "socket-tcp"] }
 riscv = { version = "0.6.0", features = ["inline-asm"] }
+
+# insanity required by using cargo build-std over xbuild with nix
+# cargo update does not work thanks to ahash 0.7 problems
+[dev-dependencies]
+getopts = "=0.2.21"
+libc = "=0.2.99"
+unicode-width = "=0.1.8"
+addr2line = "=0.16.0"
+hashbrown = "=0.11.0" # must be injected into lockfile manually
+ahash = "=0.7.0" # must be injected into lockfile manually
+miniz_oxide = "=0.4.0"
+rustc-demangle = "=0.1.21"
+hermit-abi = "=0.1.19"
+dlmalloc = "=0.2.1"
+fortanix-sgx-abi = "=0.3.3"
+cc = "=1.0.69"
+compiler_builtins = "=0.1.49"
+version_check = "=0.9.3"
+once_cell = "=1.8.0"
+wasi = "=0.9.0"
+getrandom = "=0.2.0"
+object = "=0.26.2"

artiq/firmware/bootloader/Makefile

@@ -3,8 +3,6 @@ include $(MISOC_DIRECTORY)/software/common.mak
 
 RUSTFLAGS += -Cpanic=abort
 
-export XBUILD_SYSROOT_PATH=$(BUILDINC_DIRECTORY)/../sysroot
-
 all:: bootloader.bin
 
 .PHONY: $(RUSTOUT)/libbootloader.a

artiq/firmware/bootloader/main.rs

@@ -500,7 +500,7 @@ pub extern fn main() -> i32 {
     println!(r"|_|  |_|_|____/ \___/ \____|");
     println!("");
     println!("MiSoC Bootloader");
-    println!("Copyright (c) 2017-2023 M-Labs Limited");
+    println!("Copyright (c) 2017-2024 M-Labs Limited");
     println!("");
 
     #[cfg(has_ethmac)]

artiq/firmware/ksupport/Makefile

@@ -14,8 +14,6 @@ LDFLAGS += --eh-frame-hdr \
 
 RUSTFLAGS += -Cpanic=unwind
 
-export XBUILD_SYSROOT_PATH=$(BUILDINC_DIRECTORY)/../sysroot
-
 all:: ksupport.elf
 
 .PHONY: $(RUSTOUT)/libksupport.a

artiq/firmware/ksupport/api.rs

@@ -105,6 +105,7 @@ static mut API: &'static [(&'static str, *const ())] = &[
     api!(nextafter),
     api!(pow),
     api!(round),
+    api!(rint),
     api!(sin),
     api!(sinh),
     api!(sqrt),

artiq/firmware/ksupport/eh_artiq.rs

@@ -55,12 +55,14 @@ struct ExceptionBuffer {
     exception_count: usize,
 }
 
+const EXCEPTION: uw::_Unwind_Exception = uw::_Unwind_Exception {
+    exception_class:   EXCEPTION_CLASS,
+    exception_cleanup: cleanup,
+    private:           [0; uw::unwinder_private_data_size],
+};
+
 static mut EXCEPTION_BUFFER: ExceptionBuffer = ExceptionBuffer {
-    uw_exceptions: [uw::_Unwind_Exception {
-        exception_class:   EXCEPTION_CLASS,
-        exception_cleanup: cleanup,
-        private:           [0; uw::unwinder_private_data_size],
-    }; MAX_INFLIGHT_EXCEPTIONS],
+    uw_exceptions: [EXCEPTION; MAX_INFLIGHT_EXCEPTIONS],
     exceptions: [None; MAX_INFLIGHT_EXCEPTIONS + 1],
     exception_stack: [-1; MAX_INFLIGHT_EXCEPTIONS + 1],
     backtrace: [(0, 0); MAX_BACKTRACE_SIZE],
@@ -74,11 +76,7 @@ static mut EXCEPTION_BUFFER: ExceptionBuffer = ExceptionBuffer {
 };
 
 pub unsafe extern fn reset_exception_buffer(payload_addr: usize) {
-    EXCEPTION_BUFFER.uw_exceptions = [uw::_Unwind_Exception {
-        exception_class:   EXCEPTION_CLASS,
-        exception_cleanup: cleanup,
-        private:           [0; uw::unwinder_private_data_size],
-    }; MAX_INFLIGHT_EXCEPTIONS];
+    EXCEPTION_BUFFER.uw_exceptions = [EXCEPTION; MAX_INFLIGHT_EXCEPTIONS];
     EXCEPTION_BUFFER.exceptions = [None; MAX_INFLIGHT_EXCEPTIONS + 1];
     EXCEPTION_BUFFER.exception_stack = [-1; MAX_INFLIGHT_EXCEPTIONS + 1];
     EXCEPTION_BUFFER.backtrace_size = 0;
@@ -151,8 +149,7 @@ pub extern fn personality(version: c_int,
 }
 
 #[export_name="__artiq_raise"]
-#[unwind(allowed)]
-pub unsafe extern fn raise(exception: *const Exception) -> ! {
+pub unsafe extern "C-unwind" fn raise(exception: *const Exception) -> ! {
     let count = EXCEPTION_BUFFER.exception_count;
     let stack = &mut EXCEPTION_BUFFER.exception_stack;
     let diff = exception as isize - EXCEPTION_BUFFER.exceptions.as_ptr() as isize;
@@ -222,8 +219,7 @@ pub unsafe extern fn raise(exception: *const Exception) -> ! {
 
 
 #[export_name="__artiq_resume"]
-#[unwind(allowed)]
-pub unsafe extern fn resume() -> ! {
+pub unsafe extern "C-unwind" fn resume() -> ! {
     assert!(EXCEPTION_BUFFER.exception_count != 0);
     let i = EXCEPTION_BUFFER.exception_stack[EXCEPTION_BUFFER.exception_count - 1];
     assert!(i != -1);
@@ -233,8 +229,7 @@ pub unsafe extern fn resume() -> ! {
 }
 
 #[export_name="__artiq_end_catch"]
-#[unwind(allowed)]
-pub unsafe extern fn end_catch() {
+pub unsafe extern "C-unwind" fn end_catch() {
     let mut count = EXCEPTION_BUFFER.exception_count;
     assert!(count != 0);
     // we remove all exceptions with SP <= current exception SP

artiq/firmware/ksupport/lib.rs

@@ -1,5 +1,5 @@
-#![feature(lang_items, llvm_asm, panic_unwind, libc, unwind_attributes,
-           panic_info_message, nll, const_in_array_repeat_expressions)]
+#![feature(lang_items, asm, panic_unwind, libc,
+           panic_info_message, nll, c_unwind)]
 #![no_std]
 
 extern crate libc;
@@ -30,8 +30,9 @@ fn send(request: &Message) {
 }
 
 fn recv<R, F: FnOnce(&Message) -> R>(f: F) -> R {
-    while mailbox::receive() == 0 {}
-    let result = f(unsafe { &*(mailbox::receive() as *const Message) });
+    let mut msg_ptr = 0;
+    while msg_ptr == 0 { msg_ptr = mailbox::receive(); }
+    let result = f(unsafe { &*(msg_ptr as *const Message) });
     mailbox::acknowledge();
     result
 }
@@ -121,7 +122,6 @@ pub extern fn send_to_rtio_log(text: CSlice<u8>) {
     rtio::log(text.as_ref())
 }
 
-#[unwind(aborts)]
 extern fn rpc_send(service: u32, tag: &CSlice<u8>, data: *const *const ()) {
     while !rpc_queue::empty() {}
     send(&RpcSend {
@@ -132,7 +132,6 @@ extern fn rpc_send(service: u32, tag: &CSlice<u8>, data: *const *const ()) {
     })
 }
 
-#[unwind(aborts)]
 extern fn rpc_send_async(service: u32, tag: &CSlice<u8>, data: *const *const ()) {
     while rpc_queue::full() {}
     rpc_queue::enqueue(|mut slice| {
@@ -170,8 +169,7 @@ extern fn rpc_send_async(service: u32, tag: &CSlice<u8>, data: *const *const ())
 /// to the maximum required for any of the possible types according to the target ABI).
 ///
 /// If the RPC call resulted in an exception, it is reconstructed and raised.
-#[unwind(allowed)]
-extern fn rpc_recv(slot: *mut ()) -> usize {
+extern "C-unwind" fn rpc_recv(slot: *mut ()) -> usize {
     send(&RpcRecvRequest(slot));
     recv!(&RpcRecvReply(ref result) => {
         match result {
@@ -203,7 +201,6 @@ fn terminate(exceptions: &'static [Option<eh_artiq::Exception<'static>>],
     loop {}
 }
 
-#[unwind(aborts)]
 extern fn cache_get<'a>(key: &CSlice<u8>) -> *const CSlice<'a, i32> {
     send(&CacheGetRequest {
         key:   str::from_utf8(key.as_ref()).unwrap()
@@ -213,8 +210,7 @@ extern fn cache_get<'a>(key: &CSlice<u8>) -> *const CSlice<'a, i32> {
     })
 }
 
-#[unwind(allowed)]
-extern fn cache_put(key: &CSlice<u8>, list: &CSlice<i32>) {
+extern "C-unwind" fn cache_put(key: &CSlice<u8>, list: &CSlice<i32>) {
     send(&CachePutRequest {
         key:   str::from_utf8(key.as_ref()).unwrap(),
         value: list.as_ref()
@@ -247,8 +243,7 @@ fn dma_record_flush() {
     }
 }
 
-#[unwind(allowed)]
-extern fn dma_record_start(name: &CSlice<u8>) {
+extern "C-unwind" fn dma_record_start(name: &CSlice<u8>) {
     let name = str::from_utf8(name.as_ref()).unwrap();
 
     unsafe {
@@ -267,8 +262,7 @@ extern fn dma_record_start(name: &CSlice<u8>) {
     }
 }
 
-#[unwind(allowed)]
-extern fn dma_record_stop(duration: i64, enable_ddma: bool) {
+extern "C-unwind" fn dma_record_stop(duration: i64, enable_ddma: bool) {
     unsafe {
         dma_record_flush();
 
@@ -290,7 +284,6 @@ extern fn dma_record_stop(duration: i64, enable_ddma: bool) {
     }
 }
 
-#[unwind(aborts)]
 #[inline(always)]
 unsafe fn dma_record_output_prepare(timestamp: i64, target: i32,
                                     words: usize) -> &'static mut [u8] {
@@ -327,7 +320,6 @@ unsafe fn dma_record_output_prepare(timestamp: i64, target: i32,
     data
 }
 
-#[unwind(aborts)]
 extern fn dma_record_output(target: i32, word: i32) {
     unsafe {
         let timestamp = ((csr::rtio::now_hi_read() as i64) << 32) | (csr::rtio::now_lo_read() as i64);
@@ -341,7 +333,6 @@ extern fn dma_record_output(target: i32, word: i32) {
     }
 }
 
-#[unwind(aborts)]
 extern fn dma_record_output_wide(target: i32, words: &CSlice<i32>) {
     assert!(words.len() <= 16); // enforce the hardware limit
 
@@ -360,7 +351,6 @@ extern fn dma_record_output_wide(target: i32, words: &CSlice<i32>) {
     }
 }
 
-#[unwind(aborts)]
 extern fn dma_erase(name: &CSlice<u8>) {
     let name = str::from_utf8(name.as_ref()).unwrap();
 
@@ -374,8 +364,7 @@ struct DmaTrace {
     uses_ddma: bool,
 }
 
-#[unwind(allowed)]
-extern fn dma_retrieve(name: &CSlice<u8>) -> DmaTrace {
+extern "C-unwind" fn dma_retrieve(name: &CSlice<u8>) -> DmaTrace {
     let name = str::from_utf8(name.as_ref()).unwrap();
 
     send(&DmaRetrieveRequest { name: name });
@@ -396,8 +385,7 @@ extern fn dma_retrieve(name: &CSlice<u8>) -> DmaTrace {
 }
 
 #[cfg(kernel_has_rtio_dma)]
-#[unwind(allowed)]
-extern fn dma_playback(timestamp: i64, ptr: i32, _uses_ddma: bool) {
+extern "C-unwind" fn dma_playback(timestamp: i64, ptr: i32, _uses_ddma: bool) {
     assert!(ptr % 64 == 0);
 
     unsafe {
@@ -453,15 +441,39 @@ extern fn dma_playback(timestamp: i64, ptr: i32, _uses_ddma: bool) {
     }
 }
 
-#[cfg(not(kernel_has_rtio_dma))]
-#[unwind(allowed)]
-extern fn dma_playback(_timestamp: i64, _ptr: i32, _uses_ddma: bool) {
+#[cfg(all(not(kernel_has_rtio_dma), not(has_rtio_dma)))]
+extern "C-unwind" fn dma_playback(_timestamp: i64, _ptr: i32, _uses_ddma: bool) {
     unimplemented!("not(kernel_has_rtio_dma)")
 }
 
-#[unwind(allowed)]
-extern fn subkernel_load_run(id: u32, run: bool) {
-    send(&SubkernelLoadRunRequest { id: id, run: run });
+// for satellite (has_rtio_dma but not in kernel)
+#[cfg(all(not(kernel_has_rtio_dma), has_rtio_dma))]
+extern "C-unwind" fn dma_playback(timestamp: i64, ptr: i32, _uses_ddma: bool) {
+    // DDMA is always used on satellites, so the `uses_ddma` setting is ignored
+    // StartRemoteRequest reused as "normal" start request
+    send(&DmaStartRemoteRequest { id: ptr as i32, timestamp: timestamp });
+    // skip awaitremoterequest - it's a given
+    recv!(&DmaAwaitRemoteReply { timeout, error, channel, timestamp } => {
+        if timeout {
+            raise!("DMAError",
+                "Error running DMA on satellite device, timed out waiting for results");
+        }
+        if error & 1 != 0 {
+            raise!("RTIOUnderflow",
+                "RTIO underflow at channel {rtio_channel_info:0}, {1} mu",
+                channel as i64, timestamp as i64, 0);
+        }
+        if error & 2 != 0 {
+            raise!("RTIODestinationUnreachable",
+                "RTIO destination unreachable, output, at channel {rtio_channel_info:0}, {1} mu",
+                channel as i64, timestamp as i64, 0);
+        }
+    });
+}
+
+
+extern "C-unwind" fn subkernel_load_run(id: u32, destination: u8, run: bool) {
+    send(&SubkernelLoadRunRequest { id: id, destination: destination, run: run });
     recv!(&SubkernelLoadRunReply { succeeded } => {
         if !succeeded {
             raise!("SubkernelError",
@@ -470,54 +482,64 @@ extern fn subkernel_load_run(id: u32, run: bool) {
     });
 }
 
-#[unwind(allowed)]
-extern fn subkernel_await_finish(id: u32, timeout: u64) {
+extern "C-unwind" fn subkernel_await_finish(id: u32, timeout: i64) {
     send(&SubkernelAwaitFinishRequest { id: id, timeout: timeout });
-    recv!(SubkernelAwaitFinishReply { status } => {
-        match status {
-            SubkernelStatus::NoError => (),
-            SubkernelStatus::IncorrectState => raise!("SubkernelError",
-                "Subkernel not running"),
-            SubkernelStatus::Timeout => raise!("SubkernelError",
-                "Subkernel timed out"),
-            SubkernelStatus::CommLost => raise!("SubkernelError",
-                "Lost communication with satellite"),
-            SubkernelStatus::OtherError => raise!("SubkernelError",
-                "An error occurred during subkernel operation")
+    recv(move |request| {
+        if let SubkernelAwaitFinishReply = request { }
+        else if let SubkernelError(status) = request {
+            match status {
+                SubkernelStatus::IncorrectState => raise!("SubkernelError",
+                    "Subkernel not running"),
+                SubkernelStatus::Timeout => raise!("SubkernelError",
+                    "Subkernel timed out"),
+                SubkernelStatus::CommLost => raise!("SubkernelError",
+                    "Lost communication with satellite"),
+                SubkernelStatus::OtherError => raise!("SubkernelError",
+                    "An error occurred during subkernel operation"),
+                SubkernelStatus::Exception(e) => unsafe { crate::eh_artiq::raise(e) },
+            }
+        } else {
+            send(&Log(format_args!("unexpected reply: {:?}\n", request)));
+            loop {}
         }
     })
 }
 
-#[unwind(aborts)]
-extern fn subkernel_send_message(id: u32, count: u8, tag: &CSlice<u8>, data: *const *const ()) {
+extern fn subkernel_send_message(id: u32, is_return: bool, destination: u8, 
+    count: u8, tag: &CSlice<u8>, data: *const *const ()) {
     send(&SubkernelMsgSend { 
         id: id,
+        destination: if is_return { None } else { Some(destination) },
         count: count,
         tag: tag.as_ref(),
         data: data 
     });
 }
 
-#[unwind(allowed)]
-extern fn subkernel_await_message(id: u32, timeout: u64, tags: &CSlice<u8>, min: u8, max: u8) -> u8 {
+extern "C-unwind" fn subkernel_await_message(id: i32, timeout: i64, tags: &CSlice<u8>, min: u8, max: u8) -> u8 {
     send(&SubkernelMsgRecvRequest { id: id, timeout: timeout, tags: tags.as_ref() });
-    recv!(SubkernelMsgRecvReply { status, count } => {
-        match status {
-            SubkernelStatus::NoError => {
-                if count < &min || count > &max {
-                    raise!("SubkernelError",
-                        "Received less or more arguments than expected");
-                }
-                *count
+    recv(move |request| {
+        if let SubkernelMsgRecvReply { count } = request {
+            if count < &min || count > &max {
+                raise!("SubkernelError",
+                    "Received less or more arguments than expected");
             }
-            SubkernelStatus::IncorrectState => raise!("SubkernelError",
-                "Subkernel not running"),
-            SubkernelStatus::Timeout => raise!("SubkernelError",
-                "Subkernel timed out"),
-            SubkernelStatus::CommLost => raise!("SubkernelError",
-                "Lost communication with satellite"),
-            SubkernelStatus::OtherError => raise!("SubkernelError",
-                "An error occurred during subkernel operation")
+            *count
+        } else if let SubkernelError(status) = request {
+            match status {
+                SubkernelStatus::IncorrectState => raise!("SubkernelError",
+                    "Subkernel not running"),
+                SubkernelStatus::Timeout => raise!("SubkernelError",
+                    "Subkernel timed out"),
+                SubkernelStatus::CommLost => raise!("SubkernelError",
+                    "Lost communication with satellite"),
+                SubkernelStatus::OtherError => raise!("SubkernelError",
+                    "An error occurred during subkernel operation"),
+                SubkernelStatus::Exception(e) => unsafe { crate::eh_artiq::raise(e) },
+            }
+        } else {
+            send(&Log(format_args!("unexpected reply: {:?}\n", request)));
+            loop {}
         }
     })
     // RpcRecvRequest should be called `count` times after this to receive message data
@@ -624,8 +646,7 @@ pub unsafe fn main() {
 }
 
 #[no_mangle]
-#[unwind(allowed)]
-pub unsafe extern fn exception(_regs: *const u32) {
+pub unsafe extern "C-unwind" fn exception(_regs: *const u32) {
     let pc = mepc::read();
     let cause = mcause::read().cause();
     let mtval = mtval::read();
@@ -643,7 +664,6 @@ pub unsafe extern fn exception(_regs: *const u32) {
 }
 
 #[no_mangle]
-#[unwind(allowed)]
-pub extern fn abort() {
+pub extern "C-unwind" fn abort() {
     panic!("aborted")
 }

artiq/firmware/libboard_artiq/Cargo.toml

@@ -25,3 +25,4 @@ proto_artiq = { path = "../libproto_artiq" }
 [features]
 uart_console = []
 alloc = []
+calibrate_wrpll_skew = []

artiq/firmware/libboard_artiq/drtioaux.rs

@@ -69,9 +69,9 @@ fn receive<F, T>(linkno: u8, f: F) -> Result<Option<T>, Error<!>>
     let linkidx = linkno as usize;
     unsafe {
         if (DRTIOAUX[linkidx].aux_rx_present_read)() == 1 {
-            let ptr = DRTIOAUX_MEM[linkidx].base + DRTIOAUX_MEM[linkidx].size / 2;
-            let len = (DRTIOAUX[linkidx].aux_rx_length_read)();
-            let result = f(slice::from_raw_parts(ptr as *mut u8, len as usize));
+            let read_ptr = (DRTIOAUX[linkidx].aux_read_pointer_read)() as usize;
+            let ptr = DRTIOAUX_MEM[linkidx].base + (DRTIOAUX_MEM[linkidx].size / 2) + (read_ptr * 0x400);
+            let result = f(slice::from_raw_parts(ptr as *mut u8, 0x400 as usize));
             (DRTIOAUX[linkidx].aux_rx_present_write)(1);
             Ok(Some(result?))
         } else {
@@ -86,21 +86,17 @@ pub fn recv(linkno: u8) -> Result<Option<Packet>, Error<!>> {
     }
 
     receive(linkno, |buffer| {
-        if buffer.len() < 8 {
-            return Err(IoError::UnexpectedEnd.into())
-        }
-
         let mut reader = Cursor::new(buffer);
 
-        let checksum_at = buffer.len() - 4;
+        let packet = Packet::read_from(&mut reader)?;
+        let padding = (12 - (reader.position() % 8)) % 8;
+        let checksum_at = reader.position() + padding;
         let checksum = crc::crc32::checksum_ieee(&reader.get_ref()[0..checksum_at]);
         reader.set_position(checksum_at);
         if reader.read_u32()? != checksum {
             return Err(Error::CorruptedPacket)
         }
-        reader.set_position(0);
-
-        Ok(Packet::read_from(&mut reader)?)
+        Ok(packet)
     })
 }
 

artiq/firmware/libboard_artiq/lib.rs

@@ -1,4 +1,4 @@
-#![feature(lang_items, never_type)]
+#![feature(asm, lang_items, never_type)]
 #![no_std]
 
 extern crate failure;
@@ -24,6 +24,8 @@ pub mod rpc_queue;
 
 #[cfg(has_si5324)]
 pub mod si5324;
+#[cfg(has_si549)]
+pub mod si549;
 
 #[cfg(has_grabber)]
 pub mod grabber;

artiq/firmware/libboard_artiq/mailbox.rs

@@ -6,7 +6,11 @@ static mut LAST: usize = 0;
 
 pub unsafe fn send(data: usize) {
     LAST = data;
-    write_volatile(MAILBOX, data)
+    // after Rust toolchain update to LLVM12, this empty asm! block is required
+    // to ensure that the compiler doesn't take any shortcuts
+    // otherwise, the comm CPU will read garbage data and crash
+    asm!("", options(preserves_flags, readonly, nostack));
+    write_volatile(MAILBOX, data);
 }
 
 pub fn acknowledged() -> bool {

artiq/firmware/libboard_artiq/si549.rs

@@ -0,0 +1,862 @@
+use board_misoc::{clock, csr};
+use log::info;
+
+const ADDRESS: u8 = 0x67;
+
+const ADPLL_MAX: i32 = (950.0 / 0.0001164) as i32;
+
+pub struct DividerConfig {
+    pub hsdiv: u16,
+    pub lsdiv: u8,
+    pub fbdiv: u64,
+}
+
+pub struct FrequencySetting {
+    pub main: DividerConfig,
+    pub helper: DividerConfig,
+}
+
+mod i2c {
+    use super::*;
+
+    #[derive(Clone, Copy)]
+    pub enum DCXO {
+        Main,
+        Helper,
+    }
+
+    fn half_period() {
+        clock::spin_us(1)
+    }
+
+    fn sda_i(dcxo: DCXO) -> bool {
+        match dcxo {
+            DCXO::Main => unsafe { csr::wrpll::main_dcxo_sda_in_read() == 1 },
+            DCXO::Helper => unsafe { csr::wrpll::helper_dcxo_sda_in_read() == 1 },
+        }
+    }
+
+    fn sda_oe(dcxo: DCXO, oe: bool) {
+        let val = if oe { 1 } else { 0 };
+        match dcxo {
+            DCXO::Main => unsafe { csr::wrpll::main_dcxo_sda_oe_write(val) },
+            DCXO::Helper => unsafe { csr::wrpll::helper_dcxo_sda_oe_write(val) },
+        };
+    }
+
+    fn sda_o(dcxo: DCXO, o: bool) {
+        let val = if o { 1 } else { 0 };
+        match dcxo {
+            DCXO::Main => unsafe { csr::wrpll::main_dcxo_sda_out_write(val) },
+            DCXO::Helper => unsafe { csr::wrpll::helper_dcxo_sda_out_write(val) },
+        };
+    }
+
+    fn scl_oe(dcxo: DCXO, oe: bool) {
+        let val = if oe { 1 } else { 0 };
+        match dcxo {
+            DCXO::Main => unsafe { csr::wrpll::main_dcxo_scl_oe_write(val) },
+            DCXO::Helper => unsafe { csr::wrpll::helper_dcxo_scl_oe_write(val) },
+        };
+    }
+
+    fn scl_o(dcxo: DCXO, o: bool) {
+        let val = if o { 1 } else { 0 };
+        match dcxo {
+            DCXO::Main => unsafe { csr::wrpll::main_dcxo_scl_out_write(val) },
+            DCXO::Helper => unsafe { csr::wrpll::helper_dcxo_scl_out_write(val) },
+        };
+    }
+
+    pub fn init(dcxo: DCXO) -> Result<(), &'static str> {
+        // Set SCL as output, and high level
+        scl_o(dcxo, true);
+        scl_oe(dcxo, true);
+        // Prepare a zero level on SDA so that sda_oe pulls it down
+        sda_o(dcxo, false);
+        // Release SDA
+        sda_oe(dcxo, false);
+
+        // Check the I2C bus is ready
+        half_period();
+        half_period();
+        if !sda_i(dcxo) {
+            // Try toggling SCL a few times
+            for _bit in 0..8 {
+                scl_o(dcxo, false);
+                half_period();
+                scl_o(dcxo, true);
+                half_period();
+            }
+        }
+
+        if !sda_i(dcxo) {
+            return Err("SDA is stuck low and doesn't get unstuck");
+        }
+        Ok(())
+    }
+
+    pub fn start(dcxo: DCXO) {
+        // Set SCL high then SDA low
+        scl_o(dcxo, true);
+        half_period();
+        sda_oe(dcxo, true);
+        half_period();
+    }
+
+    pub fn stop(dcxo: DCXO) {
+        // First, make sure SCL is low, so that the target releases the SDA line
+        scl_o(dcxo, false);
+        half_period();
+        // Set SCL high then SDA high
+        sda_oe(dcxo, true);
+        scl_o(dcxo, true);
+        half_period();
+        sda_oe(dcxo, false);
+        half_period();
+    }
+
+    pub fn write(dcxo: DCXO, data: u8) -> bool {
+        // MSB first
+        for bit in (0..8).rev() {
+            // Set SCL low and set our bit on SDA
+            scl_o(dcxo, false);
+            sda_oe(dcxo, data & (1 << bit) == 0);
+            half_period();
+            // Set SCL high ; data is shifted on the rising edge of SCL
+            scl_o(dcxo, true);
+            half_period();
+        }
+        // Check ack
+        // Set SCL low, then release SDA so that the I2C target can respond
+        scl_o(dcxo, false);
+        half_period();
+        sda_oe(dcxo, false);
+        // Set SCL high and check for ack
+        scl_o(dcxo, true);
+        half_period();
+        // returns true if acked (I2C target pulled SDA low)
+        !sda_i(dcxo)
+    }
+
+    pub fn read(dcxo: DCXO, ack: bool) -> u8 {
+        // Set SCL low first, otherwise setting SDA as input may cause a transition
+        // on SDA with SCL high which will be interpreted as START/STOP condition.
+        scl_o(dcxo, false);
+        half_period(); // make sure SCL has settled low
+        sda_oe(dcxo, false);
+
+        let mut data: u8 = 0;
+
+        // MSB first
+        for bit in (0..8).rev() {
+            scl_o(dcxo, false);
+            half_period();
+            // Set SCL high and shift data
+            scl_o(dcxo, true);
+            half_period();
+            if sda_i(dcxo) {
+                data |= 1 << bit
+            }
+        }
+        // Send ack
+        // Set SCL low and pull SDA low when acking
+        scl_o(dcxo, false);
+        if ack {
+            sda_oe(dcxo, true)
+        }
+        half_period();
+        // then set SCL high
+        scl_o(dcxo, true);
+        half_period();
+
+        data
+    }
+}
+
+fn write(dcxo: i2c::DCXO, reg: u8, val: u8) -> Result<(), &'static str> {
+    i2c::start(dcxo);
+    if !i2c::write(dcxo, ADDRESS << 1) {
+        return Err("Si549 failed to ack write address");
+    }
+    if !i2c::write(dcxo, reg) {
+        return Err("Si549 failed to ack register");
+    }
+    if !i2c::write(dcxo, val) {
+        return Err("Si549 failed to ack value");
+    }
+    i2c::stop(dcxo);
+    Ok(())
+}
+
+fn read(dcxo: i2c::DCXO, reg: u8) -> Result<u8, &'static str> {
+    i2c::start(dcxo);
+    if !i2c::write(dcxo, ADDRESS << 1) {
+        return Err("Si549 failed to ack write address");
+    }
+    if !i2c::write(dcxo, reg) {
+        return Err("Si549 failed to ack register");
+    }
+    i2c::stop(dcxo);
+
+    i2c::start(dcxo);
+    if !i2c::write(dcxo, (ADDRESS << 1) | 1) {
+        return Err("Si549 failed to ack read address");
+    }
+    let val = i2c::read(dcxo, false);
+    i2c::stop(dcxo);
+    Ok(val)
+}
+
+fn setup(dcxo: i2c::DCXO, config: &DividerConfig) -> Result<(), &'static str> {
+    i2c::init(dcxo)?;
+
+    write(dcxo, 255, 0x00)?; // PAGE
+    write(dcxo, 69, 0x00)?; // Disable FCAL override.
+    write(dcxo, 17, 0x00)?; // Synchronously disable output
+
+    // The Si549 has no ID register, so we check that it responds correctly
+    // by writing values to a RAM-like register and reading them back.
+    for test_value in 0..255 {
+        write(dcxo, 23, test_value)?;
+        let readback = read(dcxo, 23)?;
+        if readback != test_value {
+            return Err("Si549 detection failed");
+        }
+    }
+
+    write(dcxo, 23, config.hsdiv as u8)?;
+    write(dcxo, 24, (config.hsdiv >> 8) as u8 | (config.lsdiv << 4))?;
+    write(dcxo, 26, config.fbdiv as u8)?;
+    write(dcxo, 27, (config.fbdiv >> 8) as u8)?;
+    write(dcxo, 28, (config.fbdiv >> 16) as u8)?;
+    write(dcxo, 29, (config.fbdiv >> 24) as u8)?;
+    write(dcxo, 30, (config.fbdiv >> 32) as u8)?;
+    write(dcxo, 31, (config.fbdiv >> 40) as u8)?;
+
+    write(dcxo, 7, 0x08)?; // Start FCAL
+    clock::spin_us(30_000); // Internal FCAL VCO calibration
+    write(dcxo, 17, 0x01)?; // Synchronously enable output
+
+    Ok(())
+}
+
+pub fn main_setup(settings: &FrequencySetting) -> Result<(), &'static str> {
+    unsafe {
+        csr::wrpll::main_dcxo_bitbang_enable_write(1);
+        csr::wrpll::main_dcxo_i2c_address_write(ADDRESS);
+    }
+
+    setup(i2c::DCXO::Main, &settings.main)?;
+
+    // Si549 maximum settling time for large frequency change.
+    clock::spin_us(40_000);
+
+    unsafe {
+        csr::wrpll::main_dcxo_bitbang_enable_write(0);
+    }
+
+    info!("Main Si549 started");
+    Ok(())
+}
+
+pub fn helper_setup(settings: &FrequencySetting) -> Result<(), &'static str> {
+    unsafe {
+        csr::wrpll::helper_reset_write(1);
+        csr::wrpll::helper_dcxo_bitbang_enable_write(1);
+        csr::wrpll::helper_dcxo_i2c_address_write(ADDRESS);
+    }
+
+    setup(i2c::DCXO::Helper, &settings.helper)?;
+
+    // Si549 maximum settling time for large frequency change.
+    clock::spin_us(40_000);
+
+    unsafe {
+        csr::wrpll::helper_reset_write(0);
+        csr::wrpll::helper_dcxo_bitbang_enable_write(0);
+    }
+    info!("Helper Si549 started");
+    Ok(())
+}
+
+fn set_adpll(dcxo: i2c::DCXO, adpll: i32) -> Result<(), &'static str> {
+    if adpll.abs() > ADPLL_MAX {
+        return Err("adpll is too large");
+    }
+
+    match dcxo {
+        i2c::DCXO::Main => unsafe {
+            if csr::wrpll::main_dcxo_bitbang_enable_read() == 1 {
+                return Err("Main si549 bitbang mode is active when using gateware i2c");
+            }
+
+            while csr::wrpll::main_dcxo_adpll_busy_read() == 1 {}
+            if csr::wrpll::main_dcxo_nack_read() == 1 {
+                return Err("Main si549 failed to ack adpll write");
+            }
+
+            csr::wrpll::main_dcxo_i2c_address_write(ADDRESS);
+            csr::wrpll::main_dcxo_adpll_write(adpll as u32);
+
+            csr::wrpll::main_dcxo_adpll_stb_write(1);
+        },
+        i2c::DCXO::Helper => unsafe {
+            if csr::wrpll::helper_dcxo_bitbang_enable_read() == 1 {
+                return Err("Helper si549 bitbang mode is active when using gateware i2c");
+            }
+
+            while csr::wrpll::helper_dcxo_adpll_busy_read() == 1 {}
+            if csr::wrpll::helper_dcxo_nack_read() == 1 {
+                return Err("Helper si549 failed to ack adpll write");
+            }
+
+            csr::wrpll::helper_dcxo_i2c_address_write(ADDRESS);
+            csr::wrpll::helper_dcxo_adpll_write(adpll as u32);
+
+            csr::wrpll::helper_dcxo_adpll_stb_write(1);
+        },
+    };
+
+    Ok(())
+}
+
+#[cfg(has_wrpll)]
+pub mod wrpll {
+
+    use super::*;
+
+    const BEATING_PERIOD: i32 = 0x8000;
+    const BEATING_HALFPERIOD: i32 = 0x4000;
+    const COUNTER_WIDTH: u32 = 24;
+    const DIV_WIDTH: u32 = 2;
+
+    // y[n] = b0*x[n] + b1*x[n-1] + b2*x[n-2] - a1*y[n-1] - a2*y[n-2]
+    struct FilterParameters {
+        pub b0: i64,
+        pub b1: i64,
+        pub b2: i64,
+        pub a1: i64,
+        pub a2: i64,
+    }
+
+    #[cfg(rtio_frequency = "100.0")]
+    const LPF: FilterParameters = FilterParameters {
+        b0: 10905723400,   // 0.03967479060647884 * 1 << 38
+        b1: 21811446800,   // 0.07934958121295768 * 1 << 38
+        b2: 10905723400,   // 0.03967479060647884 * 1 << 38
+        a1: -381134538612, // -1.3865593741228928 * 1 << 38
+        a2: 149879525269,  // 0.5452585365488082  * 1 << 38
+    };
+
+    #[cfg(rtio_frequency = "125.0")]
+    const LPF: FilterParameters = FilterParameters {
+        b0: 19816511911,   // 0.07209205036273991  * 1 << 38
+        b1: 39633023822,   // 0.14418410072547982  * 1 << 38
+        b2: 19816511911,   // 0.07209205036273991  * 1 << 38
+        a1: -168062510414, // -0.6114078511562919  * 1 << 38
+        a2: -27549348884,  // -0.10022394739274834 * 1 << 38
+    };
+
+    static mut H_ADPLL1: i32 = 0;
+    static mut H_ADPLL2: i32 = 0;
+    static mut PERIOD_ERR1: i32 = 0;
+    static mut PERIOD_ERR2: i32 = 0;
+
+    static mut M_ADPLL1: i32 = 0;
+    static mut M_ADPLL2: i32 = 0;
+    static mut PHASE_ERR1: i32 = 0;
+    static mut PHASE_ERR2: i32 = 0;
+
+    static mut BASE_ADPLL: i32 = 0;
+
+    #[derive(Clone, Copy)]
+    pub enum ISR {
+        RefTag,
+        MainTag,
+    }
+
+    mod tag_collector {
+        use super::*;
+
+        #[cfg(wrpll_ref_clk = "GT_CDR")]
+        static mut TAG_OFFSET: u32 = 23890;
+        #[cfg(wrpll_ref_clk = "SMA_CLKIN")]
+        static mut TAG_OFFSET: u32 = 0;
+        static mut REF_TAG: u32 = 0;
+        static mut REF_TAG_READY: bool = false;
+        static mut MAIN_TAG: u32 = 0;
+        static mut MAIN_TAG_READY: bool = false;
+
+        pub fn reset() {
+            clear_phase_diff_ready();
+            unsafe {
+                REF_TAG = 0;
+                MAIN_TAG = 0;
+            }
+        }
+
+        pub fn clear_phase_diff_ready() {
+            unsafe {
+                REF_TAG_READY = false;
+                MAIN_TAG_READY = false;
+            }
+        }
+
+        pub fn collect_tags(interrupt: ISR) {
+            match interrupt {
+                ISR::RefTag => unsafe {
+                    REF_TAG = csr::wrpll::ref_tag_read();
+                    REF_TAG_READY = true;
+                },
+                ISR::MainTag => unsafe {
+                    MAIN_TAG = csr::wrpll::main_tag_read();
+                    MAIN_TAG_READY = true;
+                },
+            }
+        }
+
+        pub fn phase_diff_ready() -> bool {
+            unsafe { REF_TAG_READY && MAIN_TAG_READY }
+        }
+
+        #[cfg(feature = "calibrate_wrpll_skew")]
+        pub fn set_tag_offset(offset: u32) {
+            unsafe {
+                TAG_OFFSET = offset;
+            }
+        }
+
+        #[cfg(feature = "calibrate_wrpll_skew")]
+        pub fn get_tag_offset() -> u32 {
+            unsafe { TAG_OFFSET }
+        }
+
+        pub fn get_period_error() -> i32 {
+            // n * BEATING_PERIOD - REF_TAG(n) mod BEATING_PERIOD
+            let mut period_error = unsafe {
+                REF_TAG
+                    .overflowing_neg()
+                    .0
+                    .rem_euclid(BEATING_PERIOD as u32) as i32
+            };
+            // mapping tags from [0, 2π] -> [-π, π]
+            if period_error > BEATING_HALFPERIOD {
+                period_error -= BEATING_PERIOD
+            }
+            period_error
+        }
+
+        pub fn get_phase_error() -> i32 {
+            // MAIN_TAG(n) - REF_TAG(n) - TAG_OFFSET mod BEATING_PERIOD
+            let mut phase_error = unsafe {
+                MAIN_TAG
+                    .overflowing_sub(REF_TAG + TAG_OFFSET)
+                    .0
+                    .rem_euclid(BEATING_PERIOD as u32) as i32
+            };
+
+            // mapping tags from [0, 2π] -> [-π, π]
+            if phase_error > BEATING_HALFPERIOD {
+                phase_error -= BEATING_PERIOD
+            }
+            phase_error
+        }
+    }
+
+    fn set_isr(en: bool) {
+        let val = if en { 1 } else { 0 };
+        unsafe {
+            csr::wrpll::ref_tag_ev_enable_write(val);
+            csr::wrpll::main_tag_ev_enable_write(val);
+        }
+    }
+
+    fn set_base_adpll() -> Result<(), &'static str> {
+        let count2adpll = |error: i32| {
+            ((error as f64 * 1e6) / (0.0001164 * (1 << (COUNTER_WIDTH - DIV_WIDTH)) as f64)) as i32
+        };
+
+        let (ref_count, main_count) = get_freq_counts();
+        unsafe {
+            BASE_ADPLL = count2adpll(ref_count as i32 - main_count as i32);
+            set_adpll(i2c::DCXO::Main, BASE_ADPLL)?;
+            set_adpll(i2c::DCXO::Helper, BASE_ADPLL)?;
+        }
+        Ok(())
+    }
+
+    fn get_freq_counts() -> (u32, u32) {
+        unsafe {
+            csr::wrpll::frequency_counter_update_write(1);
+            while csr::wrpll::frequency_counter_busy_read() == 1 {}
+            #[cfg(wrpll_ref_clk = "GT_CDR")]
+            let ref_count = csr::wrpll::frequency_counter_counter_rtio_rx0_read();
+            #[cfg(wrpll_ref_clk = "SMA_CLKIN")]
+            let ref_count = csr::wrpll::frequency_counter_counter_ref_read();
+            let main_count = csr::wrpll::frequency_counter_counter_sys_read();
+
+            (ref_count, main_count)
+        }
+    }
+
+    fn reset_plls() -> Result<(), &'static str> {
+        unsafe {
+            H_ADPLL1 = 0;
+            H_ADPLL2 = 0;
+            PERIOD_ERR1 = 0;
+            PERIOD_ERR2 = 0;
+            M_ADPLL1 = 0;
+            M_ADPLL2 = 0;
+            PHASE_ERR1 = 0;
+            PHASE_ERR2 = 0;
+        }
+        set_adpll(i2c::DCXO::Main, 0)?;
+        set_adpll(i2c::DCXO::Helper, 0)?;
+        // wait for adpll to transfer and DCXO to settle
+        clock::spin_us(200);
+        Ok(())
+    }
+
+    fn clear_pending(interrupt: ISR) {
+        match interrupt {
+            ISR::RefTag => unsafe { csr::wrpll::ref_tag_ev_pending_write(1) },
+            ISR::MainTag => unsafe { csr::wrpll::main_tag_ev_pending_write(1) },
+        };
+    }
+
+    fn is_pending(interrupt: ISR) -> bool {
+        match interrupt {
+            ISR::RefTag => unsafe { csr::wrpll::ref_tag_ev_pending_read() == 1 },
+            ISR::MainTag => unsafe { csr::wrpll::main_tag_ev_pending_read() == 1 },
+        }
+    }
+
+    pub fn interrupt_handler() {
+        if is_pending(ISR::RefTag) {
+            tag_collector::collect_tags(ISR::RefTag);
+            clear_pending(ISR::RefTag);
+            helper_pll().expect("failed to run helper DCXO PLL");
+        }
+
+        if is_pending(ISR::MainTag) {
+            tag_collector::collect_tags(ISR::MainTag);
+            clear_pending(ISR::MainTag);
+        }
+
+        if tag_collector::phase_diff_ready() {
+            main_pll().expect("failed to run main DCXO PLL");
+            tag_collector::clear_phase_diff_ready();
+        }
+    }
+
+    fn helper_pll() -> Result<(), &'static str> {
+        let period_err = tag_collector::get_period_error();
+        unsafe {
+            let adpll = (((LPF.b0 * period_err as i64)
+                + (LPF.b1 * PERIOD_ERR1 as i64)
+                + (LPF.b2 * PERIOD_ERR2 as i64)
+                - (LPF.a1 * H_ADPLL1 as i64)
+                - (LPF.a2 * H_ADPLL2 as i64))
+                >> 38) as i32;
+            set_adpll(i2c::DCXO::Helper, BASE_ADPLL + adpll)?;
+            H_ADPLL2 = H_ADPLL1;
+            PERIOD_ERR2 = PERIOD_ERR1;
+            H_ADPLL1 = adpll;
+            PERIOD_ERR1 = period_err;
+        };
+        Ok(())
+    }
+
+    fn main_pll() -> Result<(), &'static str> {
+        let phase_err = tag_collector::get_phase_error();
+        unsafe {
+            let adpll = (((LPF.b0 * phase_err as i64)
+                + (LPF.b1 * PHASE_ERR1 as i64)
+                + (LPF.b2 * PHASE_ERR2 as i64)
+                - (LPF.a1 * M_ADPLL1 as i64)
+                - (LPF.a2 * M_ADPLL2 as i64))
+                >> 38) as i32;
+            set_adpll(i2c::DCXO::Main, BASE_ADPLL + adpll)?;
+            M_ADPLL2 = M_ADPLL1;
+            PHASE_ERR2 = PHASE_ERR1;
+            M_ADPLL1 = adpll;
+            PHASE_ERR1 = phase_err;
+        };
+        Ok(())
+    }
+
+    #[cfg(wrpll_ref_clk = "GT_CDR")]
+    fn test_skew() -> Result<(), &'static str> {
+        // wait for PLL to stabilize
+        clock::spin_us(20_000);
+
+        info!("testing the skew of SYS CLK...");
+        if has_timing_error() {
+            return Err("the skew cannot satisfy setup/hold time constraint of RX synchronizer");
+        }
+        info!("the skew of SYS CLK met the timing constraint");
+        Ok(())
+    }
+
+    #[cfg(wrpll_ref_clk = "GT_CDR")]
+    fn has_timing_error() -> bool {
+        unsafe {
+            csr::wrpll_skewtester::error_write(1);
+        }
+        clock::spin_us(5_000);
+        unsafe { csr::wrpll_skewtester::error_read() == 1 }
+    }
+
+    #[cfg(feature = "calibrate_wrpll_skew")]
+    fn find_edge(target: bool) -> Result<u32, &'static str> {
+        const STEP: u32 = 8;
+        const STABLE_THRESHOLD: u32 = 10;
+
+        enum FSM {
+            Init,
+            WaitEdge,
+            GotEdge,
+        }
+
+        let mut state: FSM = FSM::Init;
+        let mut offset: u32 = tag_collector::get_tag_offset();
+        let mut median_edge: u32 = 0;
+        let mut stable_counter: u32 = 0;
+
+        for _ in 0..(BEATING_PERIOD as u32 / STEP) as usize {
+            tag_collector::set_tag_offset(offset);
+            offset += STEP;
+            // wait for PLL to stabilize
+            clock::spin_us(20_000);
+
+            let error = has_timing_error();
+            // A median edge deglitcher
+            match state {
+                FSM::Init => {
+                    if error != target {
+                        stable_counter += 1;
+                    } else {
+                        stable_counter = 0;
+                    }
+
+                    if stable_counter >= STABLE_THRESHOLD {
+                        state = FSM::WaitEdge;
+                        stable_counter = 0;
+                    }
+                }
+                FSM::WaitEdge => {
+                    if error == target {
+                        state = FSM::GotEdge;
+                        median_edge = offset;
+                    }
+                }
+                FSM::GotEdge => {
+                    if error != target {
+                        median_edge += STEP;
+                        stable_counter = 0;
+                    } else {
+                        stable_counter += 1;
+                    }
+
+                    if stable_counter >= STABLE_THRESHOLD {
+                        return Ok(median_edge);
+                    }
+                }
+            }
+        }
+        return Err("failed to find timing error edge");
+    }
+
+    #[cfg(feature = "calibrate_wrpll_skew")]
+    fn calibrate_skew() -> Result<(), &'static str> {
+        info!("calibrating skew to meet timing constraint...");
+
+        // clear calibrated value
+        tag_collector::set_tag_offset(0);
+        let rising = find_edge(true)? as i32;
+        let falling = find_edge(false)? as i32;
+
+        let width = BEATING_PERIOD - (falling - rising);
+        let result = falling + width / 2;
+        tag_collector::set_tag_offset(result as u32);
+
+        info!(
+            "calibration successful, error zone: {} -> {}, width: {} ({}deg), middle of working region: {}",
+            rising,
+            falling,
+            width,
+            360 * width / BEATING_PERIOD,
+            result,
+        );
+
+        Ok(())
+    }
+
+    pub fn select_recovered_clock(rc: bool) {
+        set_isr(false);
+
+        if rc {
+            tag_collector::reset();
+            reset_plls().expect("failed to reset main and helper PLL");
+
+            // get within capture range
+            set_base_adpll().expect("failed to set base adpll");
+
+            // clear gateware pending flag
+            clear_pending(ISR::RefTag);
+            clear_pending(ISR::MainTag);
+
+            // use nFIQ to avoid IRQ being disabled by mutex lock and mess up PLL
+            set_isr(true);
+            info!("WRPLL interrupt enabled");
+
+            #[cfg(feature = "calibrate_wrpll_skew")]
+            calibrate_skew().expect("failed to set the correct skew");
+
+            #[cfg(wrpll_ref_clk = "GT_CDR")]
+            test_skew().expect("skew test failed");
+        }
+    }
+}
+
+#[cfg(has_wrpll_refclk)]
+pub mod wrpll_refclk {
+    use super::*;
+
+    pub struct MmcmSetting {
+        pub clkout0_reg1: u16,  //0x08
+        pub clkout0_reg2: u16,  //0x09
+        pub clkfbout_reg1: u16, //0x14
+        pub clkfbout_reg2: u16, //0x15
+        pub div_reg: u16,       //0x16
+        pub lock_reg1: u16,     //0x18
+        pub lock_reg2: u16,     //0x19
+        pub lock_reg3: u16,     //0x1A
+        pub power_reg: u16,     //0x28
+        pub filt_reg1: u16,     //0x4E
+        pub filt_reg2: u16,     //0x4F
+    }
+
+    fn one_clock_cycle() {
+        unsafe {
+            csr::wrpll_refclk::mmcm_dclk_write(1);
+            csr::wrpll_refclk::mmcm_dclk_write(0);
+        }
+    }
+
+    fn set_addr(address: u8) {
+        unsafe {
+            csr::wrpll_refclk::mmcm_daddr_write(address);
+        }
+    }
+
+    fn set_data(value: u16) {
+        unsafe {
+            csr::wrpll_refclk::mmcm_din_write(value);
+        }
+    }
+
+    fn set_enable(en: bool) {
+        let val = if en { 1 } else { 0 };
+        unsafe {
+            csr::wrpll_refclk::mmcm_den_write(val);
+        }
+    }
+
+    fn set_write_enable(en: bool) {
+        let val = if en { 1 } else { 0 };
+        unsafe {
+            csr::wrpll_refclk::mmcm_dwen_write(val);
+        }
+    }
+
+    fn get_data() -> u16 {
+        unsafe { csr::wrpll_refclk::mmcm_dout_read() }
+    }
+
+    fn drp_ready() -> bool {
+        unsafe { csr::wrpll_refclk::mmcm_dready_read() == 1 }
+    }
+
+    #[allow(dead_code)]
+    fn read(address: u8) -> u16 {
+        set_addr(address);
+        set_enable(true);
+        // Set DADDR on the mmcm and assert DEN for one clock cycle
+        one_clock_cycle();
+
+        set_enable(false);
+        while !drp_ready() {
+            // keep the clock signal until data is ready
+            one_clock_cycle();
+        }
+        get_data()
+    }
+
+    fn write(address: u8, value: u16) {
+        set_addr(address);
+        set_data(value);
+        set_write_enable(true);
+        set_enable(true);
+        // Set DADDR, DI on the mmcm and assert DWE, DEN for one clock cycle
+        one_clock_cycle();
+
+        set_write_enable(false);
+        set_enable(false);
+        while !drp_ready() {
+            // keep the clock signal until write is finished
+            one_clock_cycle();
+        }
+    }
+
+    fn reset(rst: bool) {
+        let val = if rst { 1 } else { 0 };
+        unsafe {
+            csr::wrpll_refclk::mmcm_reset_write(val)
+        }
+    }
+
+    pub fn setup(settings: MmcmSetting, mmcm_bypass: bool) -> Result<(), &'static str> {
+        unsafe {
+            csr::wrpll_refclk::refclk_reset_write(1);
+        }
+
+        if mmcm_bypass {
+            info!("Bypassing mmcm");
+            unsafe {
+                csr::wrpll_refclk::mmcm_bypass_write(1);
+            }
+        } else {
+            // Based on "DRP State Machine" from XAPP888
+            // hold reset HIGH during mmcm config
+            reset(true);
+            write(0x08, settings.clkout0_reg1);
+            write(0x09, settings.clkout0_reg2);
+            write(0x14, settings.clkfbout_reg1);
+            write(0x15, settings.clkfbout_reg2);
+            write(0x16, settings.div_reg);
+            write(0x18, settings.lock_reg1);
+            write(0x19, settings.lock_reg2);
+            write(0x1A, settings.lock_reg3);
+            write(0x28, settings.power_reg);
+            write(0x4E, settings.filt_reg1);
+            write(0x4F, settings.filt_reg2);
+            reset(false);
+
+            // wait for the mmcm to lock
+            clock::spin_us(100);
+
+            let locked = unsafe { csr::wrpll_refclk::mmcm_locked_read() == 1 };
+            if !locked {
+                return Err("mmcm failed to generate 125MHz ref clock from SMA CLKIN");
+            }
+        }
+
+        unsafe {
+            csr::wrpll_refclk::refclk_reset_write(0);
+        }
+
+        Ok(())
+    }
+}

artiq/firmware/libboard_misoc/io_expander.rs

@@ -27,6 +27,26 @@ impl IoExpander {
         const VIRTUAL_LED_MAPPING0: [(u8, u8, u8); 2] = [(0, 0, 6), (1, 1, 6)];
         const VIRTUAL_LED_MAPPING1: [(u8, u8, u8); 2] = [(2, 0, 6), (3, 1, 6)];
 
+        #[cfg(has_si549)]
+        const IODIR_CLK_SEL: u8 = 0x80; // out
+        #[cfg(has_si5324)]
+        const IODIR_CLK_SEL: u8 = 0x00; // in
+        
+        #[cfg(has_si549)]
+        const CLK_SEL_OUT: u8 = 1 << 7;
+        #[cfg(has_si5324)]
+        const CLK_SEL_OUT: u8 = 0;
+        
+        const IODIR0 : [u8; 2] = [
+            0xFF,
+            0xFF & !IODIR_CLK_SEL
+        ];
+        
+        const OUT_TAR0 : [u8; 2] = [
+            0,
+            CLK_SEL_OUT
+        ];        
+
         // Both expanders on SHARED I2C bus
         let mut io_expander = match index {
             0 => IoExpander {
@@ -34,9 +54,9 @@ impl IoExpander {
                 port: 11,
                 address: 0x40,
                 virtual_led_mapping: &VIRTUAL_LED_MAPPING0,
-                iodir: [0xff; 2],
+                iodir: IODIR0,
                 out_current: [0; 2],
-                out_target: [0; 2],
+                out_target: OUT_TAR0,
                 registers: Registers {
                     iodira: 0x00,
                     iodirb: 0x01,
@@ -153,10 +173,10 @@ impl IoExpander {
         }
         self.update_iodir()?;
 
-        self.out_current[0] = 0x00;
-        self.write(self.registers.gpioa, 0x00)?;
-        self.out_current[1] = 0x00;
-        self.write(self.registers.gpiob, 0x00)?;
+        self.write(self.registers.gpioa, self.out_target[0])?;
+        self.out_current[0] = self.out_target[0];
+        self.write(self.registers.gpiob, self.out_target[1])?;
+        self.out_current[1] = self.out_target[1];
         Ok(())
     }
 

artiq/firmware/libboard_misoc/lib.rs

@@ -1,5 +1,5 @@
 #![no_std]
-#![feature(llvm_asm)]
+#![feature(asm)]
 
 extern crate byteorder;
 #[cfg(feature = "log")]

artiq/firmware/libboard_misoc/riscv32/boot.rs

@@ -2,29 +2,26 @@ use super::{cache, pmp};
 use riscv::register::*;
 
 pub unsafe fn reset() -> ! {
-    llvm_asm!(r#"
-        j          _reset_handler
-         nop
-    "# : : : : "volatile");
-    loop {}
+    asm!("j          _reset_handler",
+         "nop",
+         options(nomem, nostack, noreturn)
+    );
 }
 
 pub unsafe fn jump(addr: usize) -> ! {
     cache::flush_cpu_icache();
-    llvm_asm!(r#"
-        jalr       x0, 0($0)
-         nop
-    "# : : "r"(addr) : : "volatile");
-    loop {}
+    asm!("jalr       x0, 0({0})",
+         "nop",
+         in(reg) addr,
+         options(nomem, nostack, noreturn)
+    );
 }
 
 pub unsafe fn start_user(addr: usize) -> ! {
     pmp::enable_user_memory();
     mstatus::set_mpp(mstatus::MPP::User);
     mepc::write(addr);
-    llvm_asm!(
-        "mret"
-        : : : : "volatile"
+    asm!("mret",
+        options(nomem, nostack, noreturn)
     );
-    unreachable!()
 }

artiq/firmware/libboard_misoc/riscv32/cache.rs

@@ -7,20 +7,24 @@ use mem;
 
 pub fn flush_cpu_icache() {
     unsafe {
-        llvm_asm!(r#"
-            fence.i
-            nop
-            nop
-            nop
-            nop
-            nop
-        "# : : : : "volatile");
+        asm!(
+            "fence.i",
+            "nop",
+            "nop",
+            "nop",
+            "nop",
+            "nop",
+            options(preserves_flags, nostack)
+        );
     }
 }
 
 pub fn flush_cpu_dcache() {
     unsafe {
-        llvm_asm!(".word(0x500F)" : : : : "volatile");
+        asm!(
+            ".word(0x500F)",
+            options(preserves_flags)
+        );
     }
 }
 

artiq/firmware/libboard_misoc/riscv32/irq.rs

@@ -0,0 +1,49 @@
+use riscv::register::{mie, mstatus};
+
+fn vmim_write(val: usize) {
+    unsafe {
+        asm!("csrw {csr}, {rs}", rs = in(reg) val, csr = const 0xBC0);
+    }
+}
+
+fn vmim_read() -> usize {
+    let r: usize;
+    unsafe {
+        asm!("csrr {rd}, {csr}", rd = out(reg) r, csr = const 0xBC0);
+    }
+    r
+}
+
+fn vmip_read() -> usize {
+    let r: usize;
+    unsafe {
+        asm!("csrr {rd}, {csr}", rd = out(reg) r, csr = const 0xFC0);
+    }
+    r
+}
+
+pub fn enable_interrupts() {
+    unsafe {
+        mstatus::set_mie();
+        mie::set_mext();
+    }
+}
+
+pub fn disable_interrupts() {
+    unsafe {
+        mstatus::clear_mie();
+        mie::clear_mext();
+    }
+}
+
+pub fn enable(id: u32) {
+    vmim_write(vmim_read() | (1 << id));
+}
+
+pub fn disable(id: u32) {
+    vmim_write(vmim_read() & !(1 << id));
+}
+
+pub fn is_pending(id: u32) -> bool {
+    (vmip_read() >> id) & 1 == 1
+}

artiq/firmware/libboard_misoc/riscv32/mod.rs

@@ -1,3 +1,4 @@
 pub mod cache;
 pub mod boot;
+pub mod irq;
 pub mod pmp;

artiq/firmware/libeh/Cargo.toml

@@ -10,5 +10,4 @@ path = "lib.rs"
 [dependencies]
 cslice = { version = "0.3" }
 libc = { path = "../libc" }
-unwind = { path = "../libunwind" }
-compiler_builtins = "=0.1.39"    # A dependency of alloc, libeh doesn't need it
+unwind = { path = "../libunwind" }

artiq/firmware/libeh/lib.rs

@@ -1,4 +1,4 @@
-#![feature(lang_items, panic_unwind, libc, unwind_attributes, int_bits_const)]
+#![feature(lang_items, panic_unwind, libc)]
 #![no_std]
 
 extern crate cslice;

artiq/firmware/libproto_artiq/drtioaux_proto.rs

@@ -16,9 +16,9 @@ impl<T> From<IoError<T>> for Error<T> {
 
 // maximum size of arbitrary payloads
 // used by satellite -> master analyzer, subkernel exceptions
-pub const SAT_PAYLOAD_MAX_SIZE: usize  = /*max size*/512 - /*CRC*/4 - /*packet ID*/1 - /*last*/1 - /*length*/2;
+pub const SAT_PAYLOAD_MAX_SIZE: usize  = /*max size*/1024 - /*CRC*/4 - /*packet ID*/1 - /*last*/1 - /*length*/2;
 // used by DDMA, subkernel program data (need to provide extra ID and destination)
-pub const MASTER_PAYLOAD_MAX_SIZE: usize = SAT_PAYLOAD_MAX_SIZE - /*destination*/1 - /*ID*/4;
+pub const MASTER_PAYLOAD_MAX_SIZE: usize = SAT_PAYLOAD_MAX_SIZE - /*source*/1 - /*destination*/1 - /*ID*/4;
 
 #[derive(PartialEq, Clone, Copy, Debug)]
 #[repr(u8)]
@@ -106,22 +106,26 @@ pub enum Packet {
     AnalyzerDataRequest { destination: u8 },
     AnalyzerData { last: bool, length: u16, data: [u8; SAT_PAYLOAD_MAX_SIZE]},
 
-    DmaAddTraceRequest { destination: u8, id: u32, status: PayloadStatus, length: u16, trace: [u8; MASTER_PAYLOAD_MAX_SIZE] },
-    DmaAddTraceReply { succeeded: bool },
-    DmaRemoveTraceRequest { destination: u8, id: u32 },
-    DmaRemoveTraceReply { succeeded: bool },
-    DmaPlaybackRequest { destination: u8, id: u32, timestamp: u64 },
-    DmaPlaybackReply { succeeded: bool },
-    DmaPlaybackStatus { destination: u8, id: u32, error: u8, channel: u32, timestamp: u64 },
+    DmaAddTraceRequest { 
+        source: u8, destination: u8, 
+        id: u32, status: PayloadStatus, 
+        length: u16, trace: [u8; MASTER_PAYLOAD_MAX_SIZE] 
+    },
+    DmaAddTraceReply { source: u8, destination: u8, id: u32, succeeded: bool },
+    DmaRemoveTraceRequest { source: u8, destination: u8, id: u32 },
+    DmaRemoveTraceReply { destination: u8, succeeded: bool },
+    DmaPlaybackRequest { source: u8, destination: u8, id: u32, timestamp: u64 },
+    DmaPlaybackReply { destination: u8, succeeded: bool },
+    DmaPlaybackStatus { source: u8, destination: u8, id: u32, error: u8, channel: u32, timestamp: u64 },
 
     SubkernelAddDataRequest { destination: u8, id: u32, status: PayloadStatus, length: u16, data: [u8; MASTER_PAYLOAD_MAX_SIZE] },
     SubkernelAddDataReply { succeeded: bool },
-    SubkernelLoadRunRequest { destination: u8, id: u32, run: bool },
-    SubkernelLoadRunReply { succeeded: bool },
-    SubkernelFinished { id: u32, with_exception: bool },
-    SubkernelExceptionRequest { destination: u8 },
-    SubkernelException { last: bool, length: u16, data: [u8; SAT_PAYLOAD_MAX_SIZE] },
-    SubkernelMessage { destination: u8, id: u32, status: PayloadStatus, length: u16, data: [u8; MASTER_PAYLOAD_MAX_SIZE] },
+    SubkernelLoadRunRequest { source: u8, destination: u8, id: u32, run: bool },
+    SubkernelLoadRunReply { destination: u8, succeeded: bool },
+    SubkernelFinished { destination: u8, id: u32, with_exception: bool, exception_src: u8 },
+    SubkernelExceptionRequest { source: u8, destination: u8 },
+    SubkernelException { destination: u8, last: bool, length: u16, data: [u8; MASTER_PAYLOAD_MAX_SIZE] },
+    SubkernelMessage { source: u8, destination: u8, id: u32, status: PayloadStatus, length: u16, data: [u8; MASTER_PAYLOAD_MAX_SIZE] },
     SubkernelMessageAck { destination: u8 },
 }
 
@@ -277,7 +281,8 @@ impl Packet {
                 }
             },
 
-            0xb0 => { 
+            0xb0 => {
+                let source = reader.read_u8()?;
                 let destination = reader.read_u8()?;
                 let id = reader.read_u32()?;
                 let status = reader.read_u8()?;
@@ -285,6 +290,7 @@ impl Packet {
                 let mut trace: [u8; MASTER_PAYLOAD_MAX_SIZE] = [0; MASTER_PAYLOAD_MAX_SIZE];
                 reader.read_exact(&mut trace[0..length as usize])?;
                 Packet::DmaAddTraceRequest {
+                    source: source,
                     destination: destination,
                     id: id,
                     status: PayloadStatus::from(status),
@@ -293,24 +299,32 @@ impl Packet {
                 }
             },
             0xb1 => Packet::DmaAddTraceReply {
+                source: reader.read_u8()?,
+                destination: reader.read_u8()?,
+                id: reader.read_u32()?,
                 succeeded: reader.read_bool()?
             },
             0xb2 => Packet::DmaRemoveTraceRequest {
+                source: reader.read_u8()?,
                 destination: reader.read_u8()?,
                 id: reader.read_u32()?
             },
             0xb3 => Packet::DmaRemoveTraceReply {
+                destination: reader.read_u8()?,
                 succeeded: reader.read_bool()?
             },
             0xb4 => Packet::DmaPlaybackRequest {
+                source: reader.read_u8()?,
                 destination: reader.read_u8()?,
                 id: reader.read_u32()?,
                 timestamp: reader.read_u64()?
             },
             0xb5 => Packet::DmaPlaybackReply {
+                destination: reader.read_u8()?,
                 succeeded: reader.read_bool()?
             },
             0xb6 => Packet::DmaPlaybackStatus {
+                source: reader.read_u8()?,
                 destination: reader.read_u8()?,
                 id: reader.read_u32()?,
                 error: reader.read_u8()?,
@@ -337,32 +351,40 @@ impl Packet {
                 succeeded: reader.read_bool()?
             },
             0xc4 => Packet::SubkernelLoadRunRequest {
+                source: reader.read_u8()?,
                 destination: reader.read_u8()?,
                 id: reader.read_u32()?,
                 run: reader.read_bool()?
             },
             0xc5 => Packet::SubkernelLoadRunReply {
+                destination: reader.read_u8()?,
                 succeeded: reader.read_bool()?
             },
             0xc8 => Packet::SubkernelFinished {
+                destination: reader.read_u8()?,
                 id: reader.read_u32()?,
                 with_exception: reader.read_bool()?,
+                exception_src: reader.read_u8()?
             },
             0xc9 => Packet::SubkernelExceptionRequest {
+                source: reader.read_u8()?,
                 destination: reader.read_u8()?
             },
             0xca => {
+                let destination = reader.read_u8()?;
                 let last = reader.read_bool()?;
                 let length = reader.read_u16()?;
-                let mut data: [u8; SAT_PAYLOAD_MAX_SIZE] = [0; SAT_PAYLOAD_MAX_SIZE];
+                let mut data: [u8; MASTER_PAYLOAD_MAX_SIZE] = [0; MASTER_PAYLOAD_MAX_SIZE];
                 reader.read_exact(&mut data[0..length as usize])?;
                 Packet::SubkernelException {
+                    destination: destination,
                     last: last,
                     length: length,
                     data: data
                 }
             },
             0xcb => {
+                let source = reader.read_u8()?;
                 let destination = reader.read_u8()?;
                 let id = reader.read_u32()?;
                 let status = reader.read_u8()?;
@@ -370,6 +392,7 @@ impl Packet {
                 let mut data: [u8; MASTER_PAYLOAD_MAX_SIZE] = [0; MASTER_PAYLOAD_MAX_SIZE];
                 reader.read_exact(&mut data[0..length as usize])?;
                 Packet::SubkernelMessage {
+                    source: source,
                     destination: destination,
                     id: id,
                     status: PayloadStatus::from(status),
@@ -561,8 +584,9 @@ impl Packet {
                 writer.write_all(&data[0..length as usize])?;
             },
 
-            Packet::DmaAddTraceRequest { destination, id, status, trace, length } => {
+            Packet::DmaAddTraceRequest { source, destination, id, status, trace, length } => {
                 writer.write_u8(0xb0)?;
+                writer.write_u8(source)?;
                 writer.write_u8(destination)?;
                 writer.write_u32(id)?;
                 writer.write_u8(status as u8)?;
@@ -571,31 +595,39 @@ impl Packet {
                 writer.write_u16(length)?;
                 writer.write_all(&trace[0..length as usize])?;
             },
-            Packet::DmaAddTraceReply { succeeded } => {
+            Packet::DmaAddTraceReply { source, destination, id, succeeded } => {
                 writer.write_u8(0xb1)?;
+                writer.write_u8(source)?;
+                writer.write_u8(destination)?;
+                writer.write_u32(id)?;
                 writer.write_bool(succeeded)?;
             },
-            Packet::DmaRemoveTraceRequest { destination, id } => {
+            Packet::DmaRemoveTraceRequest { source, destination, id } => {
                 writer.write_u8(0xb2)?;
+                writer.write_u8(source)?;
                 writer.write_u8(destination)?;
                 writer.write_u32(id)?;
             },
-            Packet::DmaRemoveTraceReply { succeeded } => {
+            Packet::DmaRemoveTraceReply { destination, succeeded } => {
                 writer.write_u8(0xb3)?;
+                writer.write_u8(destination)?;
                 writer.write_bool(succeeded)?;
             },
-            Packet::DmaPlaybackRequest { destination, id, timestamp } => {
+            Packet::DmaPlaybackRequest { source, destination, id, timestamp } => {
                 writer.write_u8(0xb4)?;
+                writer.write_u8(source)?;
                 writer.write_u8(destination)?;
                 writer.write_u32(id)?;
                 writer.write_u64(timestamp)?;
             },
-            Packet::DmaPlaybackReply { succeeded } => {
+            Packet::DmaPlaybackReply { destination, succeeded } => {
                 writer.write_u8(0xb5)?;
+                writer.write_u8(destination)?;
                 writer.write_bool(succeeded)?;
             },
-            Packet::DmaPlaybackStatus { destination, id, error, channel, timestamp } => {
+            Packet::DmaPlaybackStatus { source, destination, id, error, channel, timestamp } => {
                 writer.write_u8(0xb6)?;
+                writer.write_u8(source)?;
                 writer.write_u8(destination)?;
                 writer.write_u32(id)?;
                 writer.write_u8(error)?;
@@ -615,33 +647,40 @@ impl Packet {
                 writer.write_u8(0xc1)?;
                 writer.write_bool(succeeded)?;
             },
-            Packet::SubkernelLoadRunRequest { destination, id, run } => {
+            Packet::SubkernelLoadRunRequest { source, destination, id, run } => {
                 writer.write_u8(0xc4)?;
+                writer.write_u8(source)?;
                 writer.write_u8(destination)?;
                 writer.write_u32(id)?;
                 writer.write_bool(run)?;
             },
-            Packet::SubkernelLoadRunReply { succeeded } => {
+            Packet::SubkernelLoadRunReply { destination, succeeded } => {
                 writer.write_u8(0xc5)?;
+                writer.write_u8(destination)?;
                 writer.write_bool(succeeded)?;
             },
-            Packet::SubkernelFinished { id, with_exception } => {
+            Packet::SubkernelFinished { destination, id, with_exception, exception_src } => {
                 writer.write_u8(0xc8)?;
+                writer.write_u8(destination)?;
                 writer.write_u32(id)?;
                 writer.write_bool(with_exception)?;
+                writer.write_u8(exception_src)?;
             },
-            Packet::SubkernelExceptionRequest { destination } => {
+            Packet::SubkernelExceptionRequest { source, destination } => {
                 writer.write_u8(0xc9)?;
+                writer.write_u8(source)?;
                 writer.write_u8(destination)?;
             },
-            Packet::SubkernelException { last, length, data } => {
+            Packet::SubkernelException { destination, last, length, data } => {
                 writer.write_u8(0xca)?;
+                writer.write_u8(destination)?;
                 writer.write_bool(last)?;
                 writer.write_u16(length)?;
                 writer.write_all(&data[0..length as usize])?;
             },
-            Packet::SubkernelMessage { destination, id, status, data, length } => {
+            Packet::SubkernelMessage { source, destination, id, status, data, length } => {
                 writer.write_u8(0xcb)?;
+                writer.write_u8(source)?;
                 writer.write_u8(destination)?;
                 writer.write_u32(id)?;
                 writer.write_u8(status as u8)?;
@@ -655,4 +694,38 @@ impl Packet {
         }
         Ok(())
     }
+
+    pub fn routable_destination(&self) -> Option<u8> {
+        // only for packets that could be re-routed, not only forwarded
+        match self {
+            Packet::DmaAddTraceRequest        { destination, .. } => Some(*destination),
+            Packet::DmaAddTraceReply          { destination, .. } => Some(*destination),
+            Packet::DmaRemoveTraceRequest     { destination, .. } => Some(*destination),
+            Packet::DmaRemoveTraceReply       { destination, .. } => Some(*destination),
+            Packet::DmaPlaybackRequest        { destination, .. } => Some(*destination),
+            Packet::DmaPlaybackReply          { destination, .. } => Some(*destination),
+            Packet::SubkernelLoadRunRequest   { destination, .. } => Some(*destination),
+            Packet::SubkernelLoadRunReply     { destination, .. } => Some(*destination),
+            Packet::SubkernelMessage          { destination, .. } => Some(*destination),
+            Packet::SubkernelMessageAck       { destination, .. } => Some(*destination),
+            Packet::SubkernelExceptionRequest { destination, .. } => Some(*destination),
+            Packet::SubkernelException        { destination, .. } => Some(*destination),
+            Packet::DmaPlaybackStatus         { destination, .. } => Some(*destination),
+            Packet::SubkernelFinished         { destination, .. } => Some(*destination),
+            _ => None
+        }
+    }
+
+    pub fn expects_response(&self) -> bool {
+        // returns true if the routable packet should elicit a response
+        // e.g. reply, ACK packets end a conversation,
+        // and firmware should not wait for response
+        match self {
+            Packet::DmaAddTraceReply { .. } | Packet::DmaRemoveTraceReply { .. } |
+                Packet::DmaPlaybackReply { .. } | Packet::SubkernelLoadRunReply { .. } |
+                Packet::SubkernelMessageAck { .. } | Packet::DmaPlaybackStatus { .. } |
+                Packet::SubkernelFinished { .. } => false,
+            _ => true
+        }
+    }
 }

artiq/firmware/libproto_artiq/kernel_proto.rs

@@ -11,12 +11,12 @@ pub const KERNELCPU_LAST_ADDRESS:    usize = 0x4fffffff;
 pub const KSUPPORT_HEADER_SIZE: usize = 0x74;
 
 #[derive(Debug)]
-pub enum SubkernelStatus {
-    NoError,
+pub enum SubkernelStatus<'a> {
     Timeout,
     IncorrectState,
     CommLost,
-    OtherError
+    Exception(eh::eh_artiq::Exception<'a>),
+    OtherError,
 }
 
 #[derive(Debug)]
@@ -103,13 +103,14 @@ pub enum Message<'a> {
     SpiReadReply { succeeded: bool, data: u32 },
     SpiBasicReply { succeeded: bool },
 
-    SubkernelLoadRunRequest { id: u32, run: bool },
+    SubkernelLoadRunRequest { id: u32, destination: u8, run: bool },
     SubkernelLoadRunReply { succeeded: bool },
-    SubkernelAwaitFinishRequest { id: u32, timeout: u64 },
-    SubkernelAwaitFinishReply { status: SubkernelStatus },
-    SubkernelMsgSend { id: u32, count: u8, tag: &'a [u8], data: *const *const () },
-    SubkernelMsgRecvRequest { id: u32, timeout: u64, tags: &'a [u8] },
-    SubkernelMsgRecvReply { status: SubkernelStatus, count: u8 },
+    SubkernelAwaitFinishRequest { id: u32, timeout: i64 },
+    SubkernelAwaitFinishReply,
+    SubkernelMsgSend { id: u32, destination: Option<u8>, count: u8, tag: &'a [u8], data: *const *const () },
+    SubkernelMsgRecvRequest { id: i32, timeout: i64, tags: &'a [u8] },
+    SubkernelMsgRecvReply { count: u8 },
+    SubkernelError(SubkernelStatus<'a>),
 
     Log(fmt::Arguments<'a>),
     LogSlice(&'a str)

artiq/firmware/libunwind/src/lib.rs

@@ -3,8 +3,8 @@
 #![feature(link_cfg)]
 #![feature(nll)]
 #![feature(staged_api)]
-#![feature(unwind_attributes)]
 #![feature(static_nobundle)]
+#![feature(c_unwind)]
 #![cfg_attr(not(target_env = "msvc"), feature(libc))]
 
 mod libunwind;

artiq/firmware/libunwind/src/libunwind.rs

@@ -81,9 +81,14 @@ pub type _Unwind_Exception_Cleanup_Fn =
     all(feature = "llvm-libunwind", any(target_os = "fuchsia", target_os = "linux")),
     link(name = "unwind", kind = "static")
 )]
-extern "C" {
-    #[unwind(allowed)]
+extern "C-unwind" {
     pub fn _Unwind_Resume(exception: *mut _Unwind_Exception) -> !;
+}
+#[cfg_attr(
+    all(feature = "llvm-libunwind", any(target_os = "fuchsia", target_os = "linux")),
+    link(name = "unwind", kind = "static")
+)]
+extern "C" {
     pub fn _Unwind_DeleteException(exception: *mut _Unwind_Exception);
     pub fn _Unwind_GetLanguageSpecificData(ctx: *mut _Unwind_Context) -> *mut c_void;
     pub fn _Unwind_GetRegionStart(ctx: *mut _Unwind_Context) -> _Unwind_Ptr;
@@ -230,9 +235,13 @@ if #[cfg(not(all(target_os = "ios", target_arch = "arm")))] {
     #[cfg_attr(all(feature = "llvm-libunwind",
                    any(target_os = "fuchsia", target_os = "linux")),
                link(name = "unwind", kind = "static"))]
-    extern "C" {
-        #[unwind(allowed)]
+    extern "C-unwind" {
         pub fn _Unwind_RaiseException(exception: *mut _Unwind_Exception) -> _Unwind_Reason_Code;
+    }
+    #[cfg_attr(all(feature = "llvm-libunwind",
+                   any(target_os = "fuchsia", target_os = "linux")),
+               link(name = "unwind", kind = "static"))]
+    extern "C" {
         pub fn _Unwind_Backtrace(trace: _Unwind_Trace_Fn,
                                  trace_argument: *mut c_void)
                                  -> _Unwind_Reason_Code;
@@ -242,8 +251,7 @@ if #[cfg(not(all(target_os = "ios", target_arch = "arm")))] {
     #[cfg_attr(all(feature = "llvm-libunwind",
                    any(target_os = "fuchsia", target_os = "linux")),
                link(name = "unwind", kind = "static"))]
-    extern "C" {
-        #[unwind(allowed)]
+    extern "C-unwind" {
         pub fn _Unwind_SjLj_RaiseException(e: *mut _Unwind_Exception) -> _Unwind_Reason_Code;
     }
 

artiq/firmware/riscv32g-unknown-none-elf.json

@@ -21,20 +21,6 @@
   },
   "relro-level": "full",
   "target-family": "unix",
-  "target-pointer-width": "32",
-  "unsupported-abis": [
-    "cdecl",
-    "stdcall",
-    "fastcall",
-    "vectorcall",
-    "thiscall",
-    "aapcs",
-    "win64",
-    "sysv64",
-    "ptx-kernel",
-    "msp430-interrupt",
-    "x86-interrupt",
-    "amdgpu-kernel"
-  ]
+  "target-pointer-width": "32"
 }
   

artiq/firmware/riscv32ima-unknown-none-elf.json

@@ -13,19 +13,5 @@
   "max-atomic-width": 32,
   "panic-strategy": "unwind",
   "relocation-model": "static",
-  "target-pointer-width": "32",
-  "unsupported-abis": [
-    "cdecl",
-    "stdcall",
-    "fastcall",
-    "vectorcall",
-    "thiscall",
-    "aapcs",
-    "win64",
-    "sysv64",
-    "ptx-kernel",
-    "msp430-interrupt",
-    "x86-interrupt",
-    "amdgpu-kernel"
-  ]
+  "target-pointer-width": "32"
 }

artiq/firmware/runtime/Cargo.toml

@@ -17,7 +17,7 @@ failure = { version = "0.1", default-features = false }
 failure_derive = { version = "0.1", default-features = false }
 byteorder = { version = "1.0", default-features = false }
 cslice = { version = "0.3" }
-log = { version = "0.4", default-features = false }
+log = { version = "=0.4.14", default-features = false }
 managed = { version = "^0.7.1", default-features = false, features = ["alloc", "map"] }
 dyld = { path = "../libdyld" }
 eh = { path = "../libeh" }
@@ -37,7 +37,7 @@ features = ["alloc", "medium-ethernet", "proto-ipv4", "proto-ipv6", "socket-tcp"
 
 [dependencies.fringe]
 git = "https://git.m-labs.hk/M-Labs/libfringe.git"
-rev = "3ecbe5"
+rev = "53a964"
 default-features = false
 features = ["alloc"]
 

artiq/firmware/runtime/Makefile

@@ -10,8 +10,6 @@ LDFLAGS += \
 
 RUSTFLAGS += -Cpanic=unwind
 
-export XBUILD_SYSROOT_PATH=$(BUILDINC_DIRECTORY)/../sysroot
-
 all:: runtime.bin runtime.fbi
 
 .PHONY: $(RUSTOUT)/libruntime.a

artiq/firmware/runtime/analyzer.rs

@@ -52,7 +52,7 @@ pub mod remote_analyzer {
         pub data: Vec<u8>
     }
 
-    pub fn get_data(io: &Io, aux_mutex: &Mutex, routing_table: &drtio_routing::RoutingTable,
+    pub fn get_data(io: &Io, aux_mutex: &Mutex, ddma_mutex: &Mutex, subkernel_mutex: &Mutex, routing_table: &drtio_routing::RoutingTable,
         up_destinations: &Urc<RefCell<[bool; drtio_routing::DEST_COUNT]>>
     ) -> Result<RemoteBuffer, drtio::Error> {
             // gets data from satellites and returns consolidated data
@@ -62,7 +62,7 @@ pub mod remote_analyzer {
             let mut remote_total_bytes = 0;
 
             let data_vec = drtio::analyzer_query(
-                io, aux_mutex, routing_table, up_destinations
+                io, aux_mutex, ddma_mutex, subkernel_mutex, routing_table, up_destinations
             )?;
             for data in data_vec {
                 remote_total_bytes += data.total_byte_count;
@@ -82,7 +82,8 @@ pub mod remote_analyzer {
 
 
 
-fn worker(stream: &mut TcpStream, _io: &Io, _aux_mutex: &Mutex, 
+fn worker(stream: &mut TcpStream, _io: &Io, _aux_mutex: &Mutex,
+    _ddma_mutex: &Mutex, _subkernel_mutex: &Mutex,
     _routing_table: &drtio_routing::RoutingTable,
     _up_destinations: &Urc<RefCell<[bool; drtio_routing::DEST_COUNT]>>
 ) -> Result<(), IoError<SchedError>> {
@@ -96,7 +97,7 @@ fn worker(stream: &mut TcpStream, _io: &Io, _aux_mutex: &Mutex,
 
     #[cfg(has_drtio)]
     let remote = remote_analyzer::get_data(
-        _io, _aux_mutex, _routing_table, _up_destinations);
+        _io, _aux_mutex, _ddma_mutex, _subkernel_mutex, _routing_table, _up_destinations);
     #[cfg(has_drtio)]
     let (header, remote_data) = match remote {
         Ok(remote) => (Header {
@@ -143,7 +144,7 @@ fn worker(stream: &mut TcpStream, _io: &Io, _aux_mutex: &Mutex,
     Ok(())
 }
 
-pub fn thread(io: Io, aux_mutex: &Mutex,
+pub fn thread(io: Io, aux_mutex: &Mutex, ddma_mutex: &Mutex, subkernel_mutex: &Mutex,
     routing_table: &Urc<RefCell<drtio_routing::RoutingTable>>,
     up_destinations: &Urc<RefCell<[bool; drtio_routing::DEST_COUNT]>>) {
     let listener = TcpListener::new(&io, 65535);
@@ -158,7 +159,7 @@ pub fn thread(io: Io, aux_mutex: &Mutex,
         disarm();
 
         let routing_table = routing_table.borrow();
-        match worker(&mut stream, &io, aux_mutex, &routing_table, up_destinations) {
+        match worker(&mut stream, &io, aux_mutex, ddma_mutex, subkernel_mutex, &routing_table, up_destinations) {
             Ok(())   => (),
             Err(err) => error!("analyzer aborted: {}", err)
         }

artiq/firmware/runtime/kern_hwreq.rs

@@ -11,13 +11,15 @@ use board_artiq::spi as local_spi;
 #[cfg(has_drtio)]
 mod remote_i2c {
     use drtioaux;
+    use drtio_routing;
     use rtio_mgt::drtio;
     use sched::{Io, Mutex};
 
-    pub fn start(io: &Io, aux_mutex: &Mutex,
+    pub fn start(io: &Io, aux_mutex: &Mutex, ddma_mutex: &Mutex, subkernel_mutex: &Mutex,
+        routing_table: &drtio_routing::RoutingTable,
         linkno: u8, destination: u8, busno: u8
     ) -> Result<(), &'static str> {
-        let reply = drtio::aux_transact(io, aux_mutex, linkno, 
+        let reply = drtio::aux_transact(io, aux_mutex, ddma_mutex, subkernel_mutex, routing_table, linkno, 
             &drtioaux::Packet::I2cStartRequest {
                 destination: destination,
                 busno: busno
@@ -37,10 +39,11 @@ mod remote_i2c {
         }
     }
 
-    pub fn restart(io: &Io, aux_mutex: &Mutex, 
+    pub fn restart(io: &Io, aux_mutex: &Mutex, ddma_mutex: &Mutex, subkernel_mutex: &Mutex,
+        routing_table: &drtio_routing::RoutingTable,
         linkno: u8, destination: u8, busno: u8
     ) -> Result<(), &'static str> {
-        let reply = drtio::aux_transact(io, aux_mutex, linkno, 
+        let reply = drtio::aux_transact(io, aux_mutex, ddma_mutex, subkernel_mutex, routing_table, linkno, 
             &drtioaux::Packet::I2cRestartRequest {
                 destination: destination,
                 busno: busno
@@ -60,10 +63,11 @@ mod remote_i2c {
         }
     }
 
-    pub fn stop(io: &Io, aux_mutex: &Mutex,
+    pub fn stop(io: &Io, aux_mutex: &Mutex, ddma_mutex: &Mutex, subkernel_mutex: &Mutex,
+        routing_table: &drtio_routing::RoutingTable,
         linkno: u8, destination: u8, busno: u8
     ) -> Result<(), &'static str> {
-        let reply = drtio::aux_transact(io, aux_mutex, linkno,
+        let reply = drtio::aux_transact(io, aux_mutex, ddma_mutex, subkernel_mutex, routing_table, linkno,
             &drtioaux::Packet::I2cStopRequest  {
                 destination: destination,
                 busno: busno
@@ -83,10 +87,11 @@ mod remote_i2c {
         }
     }
 
-    pub fn write(io: &Io, aux_mutex: &Mutex,
+    pub fn write(io: &Io, aux_mutex: &Mutex, ddma_mutex: &Mutex, subkernel_mutex: &Mutex,
+        routing_table: &drtio_routing::RoutingTable,
         linkno: u8, destination: u8, busno: u8, data: u8
     ) -> Result<bool, &'static str> {
-        let reply = drtio::aux_transact(io, aux_mutex, linkno, 
+        let reply = drtio::aux_transact(io, aux_mutex, ddma_mutex, subkernel_mutex, routing_table, linkno, 
             &drtioaux::Packet::I2cWriteRequest {
                 destination: destination,
                 busno: busno,
@@ -107,10 +112,11 @@ mod remote_i2c {
         }
     }
 
-    pub fn read(io: &Io, aux_mutex: &Mutex,
+    pub fn read(io: &Io, aux_mutex: &Mutex, ddma_mutex: &Mutex, subkernel_mutex: &Mutex,
+        routing_table: &drtio_routing::RoutingTable,
         linkno: u8, destination: u8, busno: u8, ack: bool
     ) -> Result<u8, &'static str> {
-        let reply = drtio::aux_transact(io, aux_mutex, linkno, 
+        let reply = drtio::aux_transact(io, aux_mutex, ddma_mutex, subkernel_mutex, routing_table, linkno, 
             &drtioaux::Packet::I2cReadRequest {
                 destination: destination,
                 busno: busno,
@@ -131,10 +137,11 @@ mod remote_i2c {
         }
     }
 
-    pub fn switch_select(io: &Io, aux_mutex: &Mutex,
+    pub fn switch_select(io: &Io, aux_mutex: &Mutex, ddma_mutex: &Mutex, subkernel_mutex: &Mutex,
+        routing_table: &drtio_routing::RoutingTable,
         linkno: u8, destination: u8, busno: u8, address: u8, mask: u8
     ) -> Result<(), &'static str> {
-        let reply = drtio::aux_transact(io, aux_mutex, linkno, 
+        let reply = drtio::aux_transact(io, aux_mutex, ddma_mutex, subkernel_mutex, routing_table, linkno, 
             &drtioaux::Packet::I2cSwitchSelectRequest {
                 destination: destination,
                 busno: busno,
@@ -160,13 +167,15 @@ mod remote_i2c {
 #[cfg(has_drtio)]
 mod remote_spi {
     use drtioaux;
+    use drtio_routing;
     use rtio_mgt::drtio;
     use sched::{Io, Mutex};
 
-    pub fn set_config(io: &Io, aux_mutex: &Mutex,
+    pub fn set_config(io: &Io, aux_mutex: &Mutex, ddma_mutex: &Mutex, subkernel_mutex: &Mutex,
+        routing_table: &drtio_routing::RoutingTable,
         linkno: u8, destination: u8, busno: u8, flags: u8, length: u8, div: u8, cs: u8
     ) -> Result<(), ()> {
-        let reply = drtio::aux_transact(io, aux_mutex, linkno, &drtioaux::Packet::SpiSetConfigRequest {
+        let reply = drtio::aux_transact(io, aux_mutex, ddma_mutex, subkernel_mutex, routing_table, linkno, &drtioaux::Packet::SpiSetConfigRequest {
             destination: destination,
             busno: busno,
             flags: flags,
@@ -189,10 +198,11 @@ mod remote_spi {
         }
     }
 
-    pub fn write(io: &Io, aux_mutex: &Mutex,
+    pub fn write(io: &Io, aux_mutex: &Mutex, ddma_mutex: &Mutex, subkernel_mutex: &Mutex,
+        routing_table: &drtio_routing::RoutingTable,
         linkno: u8, destination: u8, busno: u8, data: u32
     ) -> Result<(), ()> {
-        let reply = drtio::aux_transact(io, aux_mutex, linkno, &drtioaux::Packet::SpiWriteRequest {
+        let reply = drtio::aux_transact(io, aux_mutex, ddma_mutex, subkernel_mutex, routing_table, linkno, &drtioaux::Packet::SpiWriteRequest {
             destination: destination,
             busno: busno,
             data: data
@@ -212,9 +222,10 @@ mod remote_spi {
         }
     }
 
-    pub fn read(io: &Io, aux_mutex: &Mutex, linkno: u8, destination: u8, busno: u8
+    pub fn read(io: &Io, aux_mutex: &Mutex, ddma_mutex: &Mutex, subkernel_mutex: &Mutex,
+        routing_table: &drtio_routing::RoutingTable, linkno: u8, destination: u8, busno: u8
     ) -> Result<u32, ()> {
-        let reply = drtio::aux_transact(io, aux_mutex, linkno, 
+        let reply = drtio::aux_transact(io, aux_mutex, ddma_mutex, subkernel_mutex, routing_table, linkno, 
             &drtioaux::Packet::SpiReadRequest {
                 destination: destination,
                 busno: busno
@@ -238,7 +249,7 @@ mod remote_spi {
 
 #[cfg(has_drtio)]
 macro_rules! dispatch {
-    ($io:ident, $aux_mutex:ident, $mod_local:ident, $mod_remote:ident, $routing_table:ident, $busno:expr, $func:ident $(, $param:expr)*) => {{
+    ($io:ident, $aux_mutex:ident, $ddma_mutex:ident, $subkernel_mutex:ident, $mod_local:ident, $mod_remote:ident, $routing_table:ident, $busno:expr, $func:ident $(, $param:expr)*) => {{
         let destination = ($busno >> 16) as u8;
         let busno = $busno as u8;
         let hop = $routing_table.0[destination as usize][0];
@@ -246,27 +257,27 @@ macro_rules! dispatch {
             $mod_local::$func(busno, $($param, )*)
         } else {
             let linkno = hop - 1;
-            $mod_remote::$func($io, $aux_mutex, linkno, destination, busno, $($param, )*)
+            $mod_remote::$func($io, $aux_mutex, $ddma_mutex, $subkernel_mutex, $routing_table, linkno, destination, busno, $($param, )*)
         }
     }}
 }
 
 #[cfg(not(has_drtio))]
 macro_rules! dispatch {
-    ($io:ident, $aux_mutex:ident, $mod_local:ident, $mod_remote:ident, $routing_table:ident, $busno:expr, $func:ident $(, $param:expr)*) => {{
+    ($io:ident, $aux_mutex:ident, $ddma_mutex:ident, $subkernel_mutex:ident, $mod_local:ident, $mod_remote:ident, $routing_table:ident, $busno:expr, $func:ident $(, $param:expr)*) => {{
         let busno = $busno as u8;
         $mod_local::$func(busno, $($param, )*)
     }}
 }
 
-pub fn process_kern_hwreq(io: &Io, aux_mutex: &Mutex,
-        _routing_table: &drtio_routing::RoutingTable,
+pub fn process_kern_hwreq(io: &Io, aux_mutex: &Mutex, ddma_mutex: &Mutex, subkernel_mutex: &Mutex,
+        routing_table: &drtio_routing::RoutingTable,
         _up_destinations: &Urc<RefCell<[bool; drtio_routing::DEST_COUNT]>>,
         request: &kern::Message) -> Result<bool, Error<SchedError>> {
     match request {
         &kern::RtioInitRequest => {
             info!("resetting RTIO");
-            rtio_mgt::reset(io, aux_mutex);
+            rtio_mgt::reset(io, aux_mutex, ddma_mutex, subkernel_mutex, routing_table);
             kern_acknowledge()
         }
 
@@ -282,47 +293,47 @@ pub fn process_kern_hwreq(io: &Io, aux_mutex: &Mutex,
         }
 
         &kern::I2cStartRequest { busno } => {
-            let succeeded = dispatch!(io, aux_mutex, local_i2c, remote_i2c, _routing_table, busno, start).is_ok();
+            let succeeded = dispatch!(io, aux_mutex, ddma_mutex, subkernel_mutex, local_i2c, remote_i2c, routing_table, busno, start).is_ok();
             kern_send(io, &kern::I2cBasicReply { succeeded: succeeded })
         }
         &kern::I2cRestartRequest { busno } => {
-            let succeeded = dispatch!(io, aux_mutex, local_i2c, remote_i2c, _routing_table, busno, restart).is_ok();
+            let succeeded = dispatch!(io, aux_mutex, ddma_mutex, subkernel_mutex, local_i2c, remote_i2c, routing_table, busno, restart).is_ok();
             kern_send(io, &kern::I2cBasicReply { succeeded: succeeded })
         }
         &kern::I2cStopRequest { busno } => {
-            let succeeded = dispatch!(io, aux_mutex, local_i2c, remote_i2c, _routing_table, busno, stop).is_ok();
+            let succeeded = dispatch!(io, aux_mutex, ddma_mutex, subkernel_mutex, local_i2c, remote_i2c, routing_table, busno, stop).is_ok();
             kern_send(io, &kern::I2cBasicReply { succeeded: succeeded })
         }
         &kern::I2cWriteRequest { busno, data } => {
-            match dispatch!(io, aux_mutex, local_i2c, remote_i2c, _routing_table, busno, write, data) {
+            match dispatch!(io, aux_mutex, ddma_mutex, subkernel_mutex, local_i2c, remote_i2c, routing_table, busno, write, data) {
                 Ok(ack) => kern_send(io, &kern::I2cWriteReply { succeeded: true, ack: ack }),
                 Err(_) => kern_send(io, &kern::I2cWriteReply { succeeded: false, ack: false })
             }
         }
         &kern::I2cReadRequest { busno, ack } => {
-            match dispatch!(io, aux_mutex, local_i2c, remote_i2c, _routing_table, busno, read, ack) {
+            match dispatch!(io, aux_mutex, ddma_mutex, subkernel_mutex, local_i2c, remote_i2c, routing_table, busno, read, ack) {
                 Ok(data) => kern_send(io, &kern::I2cReadReply { succeeded: true, data: data }),
                 Err(_) => kern_send(io, &kern::I2cReadReply { succeeded: false, data: 0xff })
             }
         }
         &kern::I2cSwitchSelectRequest { busno, address, mask } => {
-            let succeeded = dispatch!(io, aux_mutex, local_i2c, remote_i2c, _routing_table, busno,
+            let succeeded = dispatch!(io, aux_mutex, ddma_mutex, subkernel_mutex, local_i2c, remote_i2c, routing_table, busno,
                 switch_select, address, mask).is_ok();
             kern_send(io, &kern::I2cBasicReply { succeeded: succeeded })
         }
 
         &kern::SpiSetConfigRequest { busno, flags, length, div, cs } => {
-            let succeeded = dispatch!(io, aux_mutex, local_spi, remote_spi, _routing_table, busno,
+            let succeeded = dispatch!(io, aux_mutex, ddma_mutex, subkernel_mutex, local_spi, remote_spi, routing_table, busno,
                 set_config, flags, length, div, cs).is_ok();
             kern_send(io, &kern::SpiBasicReply { succeeded: succeeded })
         },
         &kern::SpiWriteRequest { busno, data } => {
-            let succeeded = dispatch!(io, aux_mutex, local_spi, remote_spi, _routing_table, busno,
+            let succeeded = dispatch!(io, aux_mutex, ddma_mutex, subkernel_mutex, local_spi, remote_spi, routing_table, busno,
                 write, data).is_ok();
             kern_send(io, &kern::SpiBasicReply { succeeded: succeeded })
         }
         &kern::SpiReadRequest { busno } => {
-            match dispatch!(io, aux_mutex, local_spi, remote_spi, _routing_table, busno, read) {
+            match dispatch!(io, aux_mutex, ddma_mutex, subkernel_mutex, local_spi, remote_spi, routing_table, busno, read) {
                 Ok(data) => kern_send(io, &kern::SpiReadReply { succeeded: true, data: data }),
                 Err(_) => kern_send(io, &kern::SpiReadReply { succeeded: false, data: 0 })
             }

artiq/firmware/runtime/kernel.rs

@@ -95,7 +95,9 @@ pub mod subkernel {
     use board_artiq::drtio_routing::RoutingTable;
     use board_misoc::clock;
     use proto_artiq::{drtioaux_proto::{PayloadStatus, MASTER_PAYLOAD_MAX_SIZE}, rpc_proto as rpc};
-    use io::Cursor;
+    use io::{Cursor, ProtoRead};
+    use eh::eh_artiq::Exception;
+    use cslice::CSlice;
     use rtio_mgt::drtio;
     use sched::{Io, Mutex, Error as SchedError};
 
@@ -103,7 +105,7 @@ pub mod subkernel {
     pub enum FinishStatus {
         Ok,
         CommLost,
-        Exception
+        Exception(u8) // exception source
     }
 
     #[derive(Debug, PartialEq, Clone, Copy)]
@@ -181,17 +183,17 @@ pub mod subkernel {
         Ok(())
     }
 
-    pub fn upload(io: &Io, aux_mutex: &Mutex, subkernel_mutex: &Mutex, 
+    pub fn upload(io: &Io, aux_mutex: &Mutex, ddma_mutex: &Mutex, subkernel_mutex: &Mutex, 
              routing_table: &RoutingTable, id: u32) -> Result<(), Error> {
         let _lock = subkernel_mutex.lock(io)?;
         let subkernel = unsafe { SUBKERNELS.get_mut(&id).unwrap() };
-        drtio::subkernel_upload(io, aux_mutex, routing_table, id, 
+        drtio::subkernel_upload(io, aux_mutex, ddma_mutex, subkernel_mutex, routing_table, id, 
             subkernel.destination, &subkernel.data)?;
         subkernel.state = SubkernelState::Uploaded; 
         Ok(()) 
     }
 
-    pub fn load(io: &Io, aux_mutex: &Mutex, subkernel_mutex: &Mutex, routing_table: &RoutingTable,
+    pub fn load(io: &Io, aux_mutex: &Mutex, ddma_mutex: &Mutex, subkernel_mutex: &Mutex, routing_table: &RoutingTable,
             id: u32, run: bool) -> Result<(), Error> {
         let _lock = subkernel_mutex.lock(io)?;
         let subkernel = unsafe { SUBKERNELS.get_mut(&id).unwrap() };
@@ -199,7 +201,7 @@ pub mod subkernel {
             error!("for id: {} expected Uploaded, got: {:?}", id, subkernel.state);
             return Err(Error::IncorrectState);
         }
-        drtio::subkernel_load(io, aux_mutex, routing_table, id, subkernel.destination, run)?;
+        drtio::subkernel_load(io, aux_mutex, ddma_mutex, subkernel_mutex, routing_table, id, subkernel.destination, run)?;
         if run {
             subkernel.state = SubkernelState::Running;
         }
@@ -216,7 +218,7 @@ pub mod subkernel {
         Ok(())
     }
 
-    pub fn subkernel_finished(io: &Io, subkernel_mutex: &Mutex, id: u32, with_exception: bool) {
+    pub fn subkernel_finished(io: &Io, subkernel_mutex: &Mutex, id: u32, with_exception: bool, exception_src: u8) {
         // called upon receiving DRTIO SubkernelRunDone
         let _lock = subkernel_mutex.lock(io).unwrap();
         let subkernel = unsafe { SUBKERNELS.get_mut(&id) };
@@ -226,22 +228,22 @@ pub mod subkernel {
             if subkernel.state == SubkernelState::Running {
                 subkernel.state = SubkernelState::Finished {
                     status: match with_exception {
-                    true => FinishStatus::Exception,
-                    false => FinishStatus::Ok,
+                        true => FinishStatus::Exception(exception_src),
+                        false => FinishStatus::Ok,
                     }
                 }
             }
         }
     }
 
-    pub fn destination_changed(io: &Io, aux_mutex: &Mutex, subkernel_mutex: &Mutex,
+    pub fn destination_changed(io: &Io, aux_mutex: &Mutex, ddma_mutex: &Mutex, subkernel_mutex: &Mutex,
              routing_table: &RoutingTable, destination: u8, up: bool) {
         let _lock = subkernel_mutex.lock(io).unwrap();
         let subkernels_iter = unsafe { SUBKERNELS.iter_mut() };
         for (id, subkernel) in subkernels_iter {
             if subkernel.destination == destination {
                 if up {
-                    match drtio::subkernel_upload(io, aux_mutex, routing_table, *id, destination, &subkernel.data)
+                    match drtio::subkernel_upload(io, aux_mutex, ddma_mutex, subkernel_mutex, routing_table, *id, destination, &subkernel.data)
                     {
                         Ok(_) => subkernel.state = SubkernelState::Uploaded,
                         Err(e) => error!("Error adding subkernel on destination {}: {}", destination, e)
@@ -256,7 +258,50 @@ pub mod subkernel {
         }
     }
 
-    pub fn retrieve_finish_status(io: &Io, aux_mutex: &Mutex, subkernel_mutex: &Mutex,
+    fn read_exception_string<'a>(reader: &mut Cursor<&[u8]>) -> Result<CSlice<'a, u8>, Error> {
+        let len = reader.read_u32()? as usize;
+        if len == usize::MAX {
+            let data = reader.read_u32()?;
+            Ok(unsafe { CSlice::new(data as *const u8, len) })
+        } else {
+            let pos = reader.position();
+            let slice = unsafe {
+                let ptr = reader.get_ref().as_ptr().offset(pos as isize);
+                CSlice::new(ptr, len)
+            };
+            reader.set_position(pos + len);
+            Ok(slice)
+        }
+    }
+
+    pub fn read_exception(buffer: &[u8]) -> Result<Exception, Error>
+    {
+        let mut reader = Cursor::new(buffer);
+
+        let mut byte = reader.read_u8()?;
+        // to sync
+        while byte != 0x5a {
+            byte = reader.read_u8()?;
+        }
+        // skip sync bytes, 0x09 indicates exception
+        while byte != 0x09 {
+            byte = reader.read_u8()?;
+        }
+        let _len = reader.read_u32()?;
+        // ignore the remaining exceptions, stack traces etc. - unwinding from another device would be unwise anyway
+        Ok(Exception {
+            id:       reader.read_u32()?,
+            message:  read_exception_string(&mut reader)?,
+            param:    [reader.read_u64()? as i64, reader.read_u64()? as i64, reader.read_u64()? as i64],
+            file:     read_exception_string(&mut reader)?,
+            line:     reader.read_u32()?,
+            column:   reader.read_u32()?,
+            function: read_exception_string(&mut reader)?
+        })
+    }
+
+
+    pub fn retrieve_finish_status(io: &Io, aux_mutex: &Mutex, ddma_mutex: &Mutex, subkernel_mutex: &Mutex,
         routing_table: &RoutingTable, id: u32) -> Result<SubkernelFinished, Error> {
         let _lock = subkernel_mutex.lock(io)?;
         let mut subkernel = unsafe { SUBKERNELS.get_mut(&id).unwrap() };
@@ -266,9 +311,9 @@ pub mod subkernel {
                 Ok(SubkernelFinished {
                     id: id,
                     comm_lost: status == FinishStatus::CommLost,
-                    exception: if status == FinishStatus::Exception { 
-                        Some(drtio::subkernel_retrieve_exception(io, aux_mutex,
-                            routing_table, subkernel.destination)?) 
+                    exception: if let FinishStatus::Exception(dest) = status { 
+                        Some(drtio::subkernel_retrieve_exception(io, aux_mutex, ddma_mutex, subkernel_mutex,
+                            routing_table, dest)?) 
                     } else { None }
                 })
             },
@@ -278,8 +323,8 @@ pub mod subkernel {
         }
     }
 
-    pub fn await_finish(io: &Io, aux_mutex: &Mutex, subkernel_mutex: &Mutex,
-        routing_table: &RoutingTable, id: u32, timeout: u64) -> Result<SubkernelFinished, Error> {
+    pub fn await_finish(io: &Io, aux_mutex: &Mutex, ddma_mutex: &Mutex, subkernel_mutex: &Mutex,
+        routing_table: &RoutingTable, id: u32, timeout: i64) -> Result<SubkernelFinished, Error> {
         {
             let _lock = subkernel_mutex.lock(io)?;
             match unsafe { SUBKERNELS.get(&id).unwrap().state } {
@@ -291,7 +336,7 @@ pub mod subkernel {
         }
         let max_time = clock::get_ms() + timeout as u64;
         let _res = io.until(|| {
-            if clock::get_ms() > max_time {
+            if timeout > 0 && clock::get_ms() > max_time {
                 return true;
             }
             if subkernel_mutex.test_lock() {
@@ -305,11 +350,11 @@ pub mod subkernel {
                 _ => false
             }
         })?;
-        if clock::get_ms() > max_time {
+        if timeout > 0 && clock::get_ms() > max_time {
             error!("Remote subkernel finish await timed out");
             return Err(Error::Timeout);
         }
-        retrieve_finish_status(io, aux_mutex, subkernel_mutex, routing_table, id)
+        retrieve_finish_status(io, aux_mutex, ddma_mutex, subkernel_mutex, routing_table, id)
     }
 
     pub struct Message {
@@ -332,8 +377,9 @@ pub mod subkernel {
             Err(_) => return,
         };
         let subkernel = unsafe { SUBKERNELS.get(&id) };
-        if subkernel.is_none() || subkernel.unwrap().state != SubkernelState::Running {
-            // do not add messages for non-existing, non-running or deleted subkernels
+        if subkernel.is_some() && subkernel.unwrap().state != SubkernelState::Running {
+            warn!("received a message for a non-running subkernel #{}", id);
+            // do not add messages for non-running or deleted subkernels
             return
         }
         if status.is_first() {
@@ -359,19 +405,26 @@ pub mod subkernel {
         }
     }
 
-    pub fn message_await(io: &Io, subkernel_mutex: &Mutex, id: u32, timeout: u64
+    pub fn message_await(io: &Io, subkernel_mutex: &Mutex, id: u32, timeout: i64
     ) -> Result<Message, Error> {
-        {
+        let is_subkernel = {
             let _lock = subkernel_mutex.lock(io)?;
+            let is_subkernel = unsafe { SUBKERNELS.get(&id).is_some() };
+            if is_subkernel {
             match unsafe { SUBKERNELS.get(&id).unwrap().state } {
-                SubkernelState::Finished { .. } => return Err(Error::SubkernelFinished),
+                SubkernelState::Finished { status: FinishStatus::Ok } |
                 SubkernelState::Running => (),
+                SubkernelState::Finished {
+                    status: FinishStatus::CommLost,
+                    } => return Err(Error::SubkernelFinished),
                 _ => return Err(Error::IncorrectState)
             }
         }
+            is_subkernel
+        };
         let max_time = clock::get_ms() + timeout as u64;
         let message = io.until_ok(|| {
-            if clock::get_ms() > max_time {
+            if timeout > 0 && clock::get_ms() > max_time {
                 return Ok(None);
             }
             if subkernel_mutex.test_lock() {
@@ -384,9 +437,12 @@ pub mod subkernel {
                     return Ok(Some(unsafe { MESSAGE_QUEUE.remove(i) }));
                 }
             }
+            if is_subkernel {
             match unsafe { SUBKERNELS.get(&id).unwrap().state } {
-                SubkernelState::Finished { .. } => return Ok(None),
+                SubkernelState::Finished { status: FinishStatus::CommLost } | 
+                    SubkernelState::Finished { status: FinishStatus::Exception(_) }  => return Ok(None),
                 _ => ()
+                }
             }
             Err(())
         });
@@ -407,20 +463,22 @@ pub mod subkernel {
         }
     }
 
-    pub fn message_send<'a>(io: &Io, aux_mutex: &Mutex, subkernel_mutex: &Mutex,
-        routing_table: &RoutingTable, id: u32, count: u8, tag: &'a [u8], message: *const *const ()
+    pub fn message_send<'a>(io: &Io, aux_mutex: &Mutex, ddma_mutex: &Mutex, subkernel_mutex: &Mutex,
+        routing_table: &RoutingTable, id: u32, destination: Option<u8>, count: u8, tag: &'a [u8], message: *const *const ()
     ) -> Result<(), Error> {
         let mut writer = Cursor::new(Vec::new());
-        let _lock = subkernel_mutex.lock(io)?;
-        let destination = unsafe { SUBKERNELS.get(&id).unwrap().destination };
-
         // reuse rpc code for sending arbitrary data
         rpc::send_args(&mut writer, 0, tag, message, false)?;
         // skip service tag, but overwrite first byte with tag count
+        let destination = destination.unwrap_or_else(|| {
+                let _lock = subkernel_mutex.lock(io).unwrap();
+                unsafe { SUBKERNELS.get(&id).unwrap().destination }
+            }
+        );
         let data = &mut writer.into_inner()[3..];
         data[0] = count;
         Ok(drtio::subkernel_send_message(
-            io, aux_mutex, routing_table, id, destination, data
+            io, aux_mutex, ddma_mutex, subkernel_mutex, routing_table, id, destination, data
         )?)
     }
 }

artiq/firmware/runtime/main.rs

@@ -29,19 +29,24 @@ extern crate riscv;
 extern crate tar_no_std;
 
 use alloc::collections::BTreeMap;
-use core::cell::RefCell;
+use core::cell::{RefCell, Cell};
 use core::convert::TryFrom;
 use smoltcp::wire::HardwareAddress;
+use urc::Urc;
 
 use board_misoc::{csr, ident, clock, spiflash, config, net_settings, pmp, boot};
 #[cfg(has_ethmac)]
 use board_misoc::ethmac;
+#[cfg(soc_platform = "kasli")]
+use board_misoc::irq;
 use board_misoc::net_settings::{Ipv4AddrConfig};
 #[cfg(has_drtio)]
 use board_artiq::drtioaux;
 use board_artiq::drtio_routing;
 use board_artiq::{mailbox, rpc_queue};
 use proto_artiq::{mgmt_proto, moninj_proto, rpc_proto, session_proto, kernel_proto};
+#[cfg(has_wrpll)]
+use board_artiq::si549;
 #[cfg(has_drtio_eem)]
 use board_artiq::drtio_eem;
 #[cfg(has_rtio_analyzer)]
@@ -192,6 +197,7 @@ fn startup() {
 
     let ddma_mutex = sched::Mutex::new();
     let subkernel_mutex = sched::Mutex::new();
+    let restart_idle = Urc::new(Cell::new(false));
 
     let mut scheduler = sched::Scheduler::new(interface);
     let io = scheduler.io();
@@ -201,28 +207,35 @@ fn startup() {
     }
 
     rtio_mgt::startup(&io, &aux_mutex, &drtio_routing_table, &up_destinations, &ddma_mutex, &subkernel_mutex);
-
-    io.spawn(4096, mgmt::thread);
+    {
+        let restart_idle = restart_idle.clone();
+        io.spawn(4096, move |io| { mgmt::thread(io, &restart_idle) });
+    }
     {
         let aux_mutex = aux_mutex.clone();
         let drtio_routing_table = drtio_routing_table.clone();
         let up_destinations = up_destinations.clone();
         let ddma_mutex = ddma_mutex.clone();
         let subkernel_mutex = subkernel_mutex.clone();
-        io.spawn(32768, move |io| { session::thread(io, &aux_mutex, &drtio_routing_table, &up_destinations, &ddma_mutex, &subkernel_mutex) });
+        let restart_idle = restart_idle.clone();
+        io.spawn(32768, move |io| { session::thread(io, &aux_mutex, &drtio_routing_table, &up_destinations, &ddma_mutex, &subkernel_mutex, &restart_idle) });
     }
     #[cfg(any(has_rtio_moninj, has_drtio))]
     {
         let aux_mutex = aux_mutex.clone();
+        let ddma_mutex = ddma_mutex.clone();
+        let subkernel_mutex = subkernel_mutex.clone();
         let drtio_routing_table = drtio_routing_table.clone();
-        io.spawn(4096, move |io| { moninj::thread(io, &aux_mutex, &drtio_routing_table) });
+        io.spawn(4096, move |io| { moninj::thread(io, &aux_mutex, &ddma_mutex, &subkernel_mutex, &drtio_routing_table) });
     }
     #[cfg(has_rtio_analyzer)]
     {
         let aux_mutex = aux_mutex.clone();
+        let ddma_mutex = ddma_mutex.clone();
+        let subkernel_mutex = subkernel_mutex.clone();
         let drtio_routing_table = drtio_routing_table.clone();
         let up_destinations = up_destinations.clone();
-        io.spawn(8192, move |io| { analyzer::thread(io, &aux_mutex, &drtio_routing_table, &up_destinations) });
+        io.spawn(8192, move |io| { analyzer::thread(io, &aux_mutex, &ddma_mutex, &subkernel_mutex, &drtio_routing_table, &up_destinations) });
     }
 
     #[cfg(has_grabber)]
@@ -261,6 +274,11 @@ pub extern fn main() -> i32 {
 
         pmp::init_stack_guard(&_sstack_guard as *const u8 as usize);
 
+        #[cfg(soc_platform = "kasli")]
+        irq::enable_interrupts();
+        #[cfg(has_wrpll)]
+        irq::enable(csr::WRPLL_INTERRUPT);
+
         logger_artiq::BufferLogger::new(&mut LOG_BUFFER[..]).register(||
             boot::start_user(startup as usize)
         );
@@ -295,8 +313,11 @@ pub extern fn exception(regs: *const TrapFrame) {
     let pc = mepc::read();
     let cause = mcause::read().cause();
     match cause {
-        mcause::Trap::Interrupt(source) => {
-            info!("Called interrupt with {:?}", source);
+        mcause::Trap::Interrupt(_source) => {
+            #[cfg(has_wrpll)]
+            if irq::is_pending(csr::WRPLL_INTERRUPT) {
+                si549::wrpll::interrupt_handler();
+            }
         },
 
         mcause::Trap::Exception(mcause::Exception::UserEnvCall) => {

artiq/firmware/runtime/mgmt.rs

@@ -1,10 +1,12 @@
 use log::{self, LevelFilter};
+use core::cell::Cell;
 
 use io::{Write, ProtoWrite, Error as IoError};
 use board_misoc::{config, spiflash};
 use logger_artiq::BufferLogger;
 use mgmt_proto::*;
 use sched::{Io, TcpListener, TcpStream, Error as SchedError};
+use urc::Urc;
 
 impl From<SchedError> for Error<SchedError> {
     fn from(value: SchedError) -> Error<SchedError> {
@@ -12,7 +14,7 @@ impl From<SchedError> for Error<SchedError> {
     }
 }
 
-fn worker(io: &Io, stream: &mut TcpStream) -> Result<(), Error<SchedError>> {
+fn worker(io: &Io, stream: &mut TcpStream, restart_idle: &Urc<Cell<bool>>) -> Result<(), Error<SchedError>> {
     read_magic(stream)?;
     Write::write_all(stream, "e".as_bytes())?;
     info!("new connection from {}", stream.remote_endpoint());
@@ -84,7 +86,13 @@ fn worker(io: &Io, stream: &mut TcpStream) -> Result<(), Error<SchedError>> {
             }
             Request::ConfigWrite { ref key, ref value } => {
                 match config::write(key, value) {
-                    Ok(_)  => Reply::Success.write_to(stream),
+                    Ok(_)  => { 
+                        if key == "idle_kernel" {
+                            io.until(|| !restart_idle.get())?;
+                            restart_idle.set(true);
+                        }
+                        Reply::Success.write_to(stream)
+                    },
                     Err(_) => Reply::Error.write_to(stream)
                 }?;
             }
@@ -117,16 +125,17 @@ fn worker(io: &Io, stream: &mut TcpStream) -> Result<(), Error<SchedError>> {
     }
 }
 
-pub fn thread(io: Io) {
+pub fn thread(io: Io, restart_idle: &Urc<Cell<bool>>) {
     let listener = TcpListener::new(&io, 8192);
     listener.listen(1380).expect("mgmt: cannot listen");
     info!("management interface active");
 
     loop {
         let stream = listener.accept().expect("mgmt: cannot accept").into_handle();
+        let restart_idle = restart_idle.clone();
         io.spawn(4096, move |io| {
             let mut stream = TcpStream::from_handle(&io, stream);
-            match worker(&io, &mut stream) {
+            match worker(&io, &mut stream, &restart_idle) {
                 Ok(()) => (),
                 Err(Error::Io(IoError::UnexpectedEnd)) => (),
                 Err(err) => error!("aborted: {}", err)