Merge remote-tracking branch 'origin/master' into new-py2llvm

.travis.yml

@@ -7,37 +7,37 @@ branches:
 sudo: false
 env:
   global:
-    - MSCDIR=$TRAVIS_BUILD_DIR/misoc
-    - PATH=$HOME/miniconda/bin:/usr/local/llvm-or1k/bin:$PATH
     - BUILD_SOC=1
     - secure: "DUk/Ihg8KbbzEgPF0qrHqlxU8e8eET9i/BtzNvFddIGX4HP/P2qz0nk3cVkmjuWhqJXSbC22RdKME9qqPzw6fJwJ6dpJ3OR6dDmSd7rewavq+niwxu52PVa+yK8mL4yf1terM7QQ5tIRf+yUL9qGKrZ2xyvEuRit6d4cFep43Ws="
 before_install:
   - mkdir -p $HOME/.mlabs
   - if [ $TRAVIS_PULL_REQUEST != false ]; then BUILD_SOC=0; fi
-  - . ./.travis/get-toolchain.sh
   - if [ $BUILD_SOC -ne 0 ]; then ./.travis/get-xilinx.sh; fi
-  - ./.travis/get-anaconda.sh
+  - . ./.travis/get-toolchain.sh
+  - . ./.travis/get-anaconda.sh
   - source $HOME/miniconda/bin/activate py34
-  - conda install pip coverage binstar migen cython
+  - conda install -q pip coverage binstar migen cython
   - pip install coveralls
 install:
   - conda build conda/artiq
-  - conda install $HOME/miniconda/conda-bld/linux-64/artiq-*.tar.bz2
+  - conda install -q artiq --use-local
 script:
   - coverage run --source=artiq setup.py test
   - make -C doc/manual html
 after_success:
-  - binstar login --hostname $(hostname) --username $binstar_login --password $binstar_password
-  - binstar upload --user $binstar_login --channel dev --force $HOME/miniconda/conda-bld/linux-64/artiq-*.tar.bz2
+  - binstar -q login --hostname $(hostname) --username $binstar_login --password $binstar_password
+  - binstar -q upload --user $binstar_login --channel dev --force $HOME/miniconda/conda-bld/linux-64/artiq-*.tar.bz2
+  - binstar -q logout
   - coveralls
 notifications:
-  email: false
+  email:
+    recipients:
+      - rjordens@nist.gov
+    on_success: always
+    on_failure: never
   irc:
     channels:
       - chat.freenode.net#m-labs
     template:
       - "%{repository}#%{build_number} (%{branch} - %{commit} : %{author}): %{message}"
       - "Build details : %{build_url}"
-  webhooks:
-    urls:
-      - https://webhooks.gitter.im/e/d26782523952bfa53814

.travis/get-anaconda.sh

@@ -1,6 +1,7 @@
 #!/bin/sh
 
-wget http://repo.continuum.io/miniconda/Miniconda3-3.7.3-Linux-x86_64.sh -O miniconda.sh
+export PATH=$HOME/miniconda/bin:$PATH
+wget http://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh -O miniconda.sh
 bash miniconda.sh -b -p $HOME/miniconda
 hash -r
 conda config --set always_yes yes --set changeps1 no
@@ -9,4 +10,4 @@ conda info -a
 conda install conda-build jinja2
 conda create -q -n py34 python=$TRAVIS_PYTHON_VERSION
 conda config --add channels fallen
-conda config --add channels https://conda.binstar.org/fallen/channel/dev
+conda config --add channels https://conda.anaconda.org/fallen/channel/dev

.travis/get-xilinx.sh

@@ -24,12 +24,13 @@ echo "$secret" | gpg --passphrase-fd 0 Xilinx.lic.gpg
 mkdir -p ~/.Xilinx
 mv Xilinx.lic ~/.Xilinx/Xilinx.lic
 
-# Tell mibuild where Vivado is installed
-echo "MISOC_EXTRA_VIVADO_CMDLINE=\"-Ob vivado_path $HOME/Xilinx/Vivado\"" >> $HOME/.mlabs/build_settings.sh
-echo "MISOC_EXTRA_ISE_CMDLINE=\"-Ob ise_path $HOME/opt/Xilinx/\"" >> $HOME/.mlabs/build_settings.sh
-
-# Lie to Vivado by hooking the ioctl used to retrieve mac address for license verification
 git clone https://github.com/fallen/impersonate_macaddress
 make -C impersonate_macaddress
-echo "export MACADDR=$macaddress" >> $HOME/.mlabs/build_settings.sh
-echo "export LD_PRELOAD=$PWD/impersonate_macaddress/impersonate_macaddress.so" >> $HOME/.mlabs/build_settings.sh
+# Tell mibuild where Xilinx toolchains are installed
+# and feed it the mac address corresponding to the license
+cat > $HOME/.mlabs/build_settings.sh << EOF
+MISOC_EXTRA_VIVADO_CMDLINE="-Ob vivado_path $HOME/Xilinx/Vivado"
+MISOC_EXTRA_ISE_CMDLINE="-Ob ise_path $HOME/opt/Xilinx/"
+export MACADDR=$macaddress
+export LD_PRELOAD=$PWD/impersonate_macaddress/impersonate_macaddress.so
+EOF

artiq/__init__.py

@@ -1,6 +1,5 @@
-from artiq.language.core import *
-from artiq.language.experiment import Experiment
-from artiq.language.db import *
-from artiq.language.units import check_unit
-from artiq.language.units import ps, ns, us, ms, s
-from artiq.language.units import Hz, kHz, MHz, GHz
+from artiq import language
+from artiq.language import *
+
+__all__ = []
+__all__.extend(language.__all__)

artiq/coredevice/comm_dummy.py

@@ -1,21 +1,9 @@
 from operator import itemgetter
 
-from artiq.language.db import AutoDB
-from artiq.language.units import ms
-from artiq.coredevice.runtime import LinkInterface
 
-
-class _RuntimeEnvironment(LinkInterface):
-    def __init__(self):
-        self.warmup_time = 1*ms
-
-    def emit_object(self):
-        return str(self.llvm_module)
-
-
-class Comm(AutoDB):
-    def get_runtime_env(self):
-        return _RuntimeEnvironment()
+class Comm:
+    def __init__(self, dmgr):
+        pass
 
     def switch_clock(self, external):
         pass

artiq/coredevice/comm_generic.py

@@ -21,6 +21,11 @@ class _H2DMsgType(Enum):
 
     RPC_REPLY = 6
 
+    FLASH_READ_REQUEST = 7
+    FLASH_WRITE_REQUEST = 8
+    FLASH_ERASE_REQUEST = 9
+    FLASH_REMOVE_REQUEST = 10
+
 
 class _D2HMsgType(Enum):
     LOG_REPLY = 1
@@ -37,6 +42,10 @@ class _D2HMsgType(Enum):
 
     RPC_REQUEST = 10
 
+    FLASH_READ_REPLY = 11
+    FLASH_OK_REPLY = 12
+    FLASH_ERROR_REPLY = 13
+
 
 class UnsupportedDevice(Exception):
     pass
@@ -86,7 +95,12 @@ class CommGeneric:
     def _write_header(self, length, ty):
         self.open()
         logger.debug("sending message: type=%r length=%d", ty, length)
-        self.write(struct.pack(">llB", 0x5a5a5a5a, length, ty.value))
+        self.write(struct.pack(">ll", 0x5a5a5a5a, length))
+        if ty is not None:
+            self.write(struct.pack("B", ty.value))
+
+    def reset_session(self):
+        self._write_header(0, None)
 
     def check_ident(self):
         self._write_header(9, _H2DMsgType.IDENT_REQUEST)
@@ -116,12 +130,46 @@ class CommGeneric:
         if ty != _D2HMsgType.LOAD_COMPLETED:
             raise IOError("Incorrect reply from device: "+str(ty))
 
-    def run(self, kname, reset_now):
-        self._write_header(len(kname) + 10, _H2DMsgType.RUN_KERNEL)
-        self.write(struct.pack("B", reset_now))
+    def run(self, kname):
+        self._write_header(len(kname) + 9, _H2DMsgType.RUN_KERNEL)
         self.write(bytes(kname, "ascii"))
         logger.debug("running kernel: %s", kname)
 
+    def flash_storage_read(self, key):
+        self._write_header(9+len(key), _H2DMsgType.FLASH_READ_REQUEST)
+        self.write(key)
+        length, ty = self._read_header()
+        if ty != _D2HMsgType.FLASH_READ_REPLY:
+            raise IOError("Incorrect reply from device: {}".format(ty))
+        value = self.read(length - 9)
+        return value
+
+    def flash_storage_write(self, key, value):
+        self._write_header(9+len(key)+1+len(value),
+                           _H2DMsgType.FLASH_WRITE_REQUEST)
+        self.write(key)
+        self.write(b"\x00")
+        self.write(value)
+        _, ty = self._read_header()
+        if ty != _D2HMsgType.FLASH_OK_REPLY:
+            if ty == _D2HMsgType.FLASH_ERROR_REPLY:
+                raise IOError("Flash storage is full")
+            else:
+                raise IOError("Incorrect reply from device: {}".format(ty))
+
+    def flash_storage_erase(self):
+        self._write_header(9, _H2DMsgType.FLASH_ERASE_REQUEST)
+        _, ty = self._read_header()
+        if ty != _D2HMsgType.FLASH_OK_REPLY:
+            raise IOError("Incorrect reply from device: {}".format(ty))
+
+    def flash_storage_remove(self, key):
+        self._write_header(9+len(key), _H2DMsgType.FLASH_REMOVE_REQUEST)
+        self.write(key)
+        _, ty = self._read_header()
+        if ty != _D2HMsgType.FLASH_OK_REPLY:
+            raise IOError("Incorrect reply from device: {}".format(ty))
+
     def _receive_rpc_value(self, type_tag):
         if type_tag == "n":
             return None

artiq/coredevice/comm_serial.py

@@ -3,22 +3,22 @@ import serial
 import struct
 
 from artiq.coredevice.comm_generic import CommGeneric
-from artiq.language.db import *
 
 
 logger = logging.getLogger(__name__)
 
 
-class Comm(CommGeneric, AutoDB):
-    class DBKeys:
-        serial_dev = Argument()
-        baud_rate = Argument(115200)
+class Comm(CommGeneric):
+    def __init__(self, dmgr, serial_dev, baud_rate=115200):
+        self.serial_dev = serial_dev
+        self.baud_rate = baud_rate
 
     def open(self):
         if hasattr(self, "port"):
             return
         self.port = serial.serial_for_url(self.serial_dev,
                                           baudrate=self.baud_rate)
+        self.reset_session()
 
     def close(self):
         if not hasattr(self, "port"):

artiq/coredevice/comm_tcp.py

@@ -2,16 +2,15 @@ import logging
 import socket
 
 from artiq.coredevice.comm_generic import CommGeneric
-from artiq.language.db import *
 
 
 logger = logging.getLogger(__name__)
 
 
-class Comm(CommGeneric, AutoDB):
-    class DBKeys:
-        host = Argument()
-        port = Argument(1381)
+class Comm(CommGeneric):
+    def __init__(self, dmgr, host, port=1381):
+        self.host = host
+        self.port = port
 
     def open(self):
         if hasattr(self, "socket"):

artiq/coredevice/core.py

@@ -1,11 +1,9 @@
 import os
 
 from artiq.language.core import *
-from artiq.language.db import *
 from artiq.language.units import ns
 
 from artiq.transforms.inline import inline
-from artiq.transforms.lower_units import lower_units
 from artiq.transforms.quantize_time import quantize_time
 from artiq.transforms.remove_inter_assigns import remove_inter_assigns
 from artiq.transforms.fold_constants import fold_constants
@@ -15,7 +13,7 @@ from artiq.transforms.interleave import interleave
 from artiq.transforms.lower_time import lower_time
 from artiq.transforms.unparse import unparse
 
-from artiq.coredevice.runtime import Environment
+from artiq.coredevice.runtime import Runtime
 
 from artiq.py2llvm import get_runtime_binary
 
@@ -47,27 +45,23 @@ def _no_debug_unparse(label, node):
     pass
 
 
-class Core(AutoDB):
-    class DBKeys:
-        comm = Device()
-        ref_period = Argument(8*ns)
-        external_clock = Argument(False)
+class Core:
+    def __init__(self, dmgr, ref_period=8*ns, external_clock=False):
+        self.comm = dmgr.get("comm")
+        self.ref_period = ref_period
+        self.external_clock = external_clock
 
-    def build(self):
         self.first_run = True
         self.core = self
         self.comm.core = self
-        self.runtime_env = Environment()
+        self.runtime = Runtime()
 
     def transform_stack(self, func_def, rpc_map, exception_map,
                         debug_unparse=_no_debug_unparse):
-        lower_units(func_def, rpc_map)
-        debug_unparse("lower_units", func_def)
-
         remove_inter_assigns(func_def)
         debug_unparse("remove_inter_assigns_1", func_def)
 
-        quantize_time(func_def, self.ref_period.amount)
+        quantize_time(func_def, self.ref_period)
         debug_unparse("quantize_time", func_def)
 
         fold_constants(func_def)
@@ -108,7 +102,7 @@ class Core(AutoDB):
         debug_unparse("inline", func_def)
         self.transform_stack(func_def, rpc_map, exception_map, debug_unparse)
 
-        binary = get_runtime_binary(self.runtime_env, func_def)
+        binary = get_runtime_binary(self.runtime, func_def)
 
         return binary, rpc_map, exception_map
 
@@ -120,15 +114,14 @@ class Core(AutoDB):
         binary, rpc_map, exception_map = self.compile(
             k_function, k_args, k_kwargs)
         self.comm.load(binary)
-        self.comm.run(k_function.__name__, self.first_run)
+        self.comm.run(k_function.__name__)
         self.comm.serve(rpc_map, exception_map)
         self.first_run = False
 
     @kernel
-    def get_rtio_time(self):
-        return cycles_to_time(syscall("rtio_get_counter"))
+    def get_rtio_counter_mu(self):
+        return syscall("rtio_get_counter")
 
     @kernel
     def break_realtime(self):
-        t = syscall("rtio_get_counter") + 125000
-        at(cycles_to_time(t))
+        at_mu(syscall("rtio_get_counter") + 125000)

artiq/coredevice/dds.py

@@ -1,9 +1,8 @@
 from artiq.language.core import *
-from artiq.language.db import *
 from artiq.language.units import *
 
 
-PHASE_MODE_DEFAULT = -1
+_PHASE_MODE_DEFAULT = -1
 # keep in sync with dds.h
 PHASE_MODE_CONTINUOUS = 0
 PHASE_MODE_ABSOLUTE = 1
@@ -23,21 +22,19 @@ class _BatchContextManager:
         self.dds_bus.batch_exit()
 
 
-class DDSBus(AutoDB):
+class DDSBus:
     """Core device Direct Digital Synthesis (DDS) bus batching driver.
 
     Manages batching of DDS commands on a DDS shared bus."""
-    class DBKeys:
-        core = Device()
-
-    def build(self):
+    def __init__(self, dmgr):
+        self.core = dmgr.get("core")
         self.batch = _BatchContextManager(self)
 
     @kernel
     def batch_enter(self):
         """Starts a DDS command batch. All DDS commands are buffered
         after this call, until ``batch_exit`` is called."""
-        syscall("dds_batch_enter", time_to_cycles(now()))
+        syscall("dds_batch_enter", now_mu())
 
     @kernel
     def batch_exit(self):
@@ -46,21 +43,21 @@ class DDSBus(AutoDB):
         syscall("dds_batch_exit")
 
 
-class DDS(AutoDB):
+class _DDSGeneric:
     """Core device Direct Digital Synthesis (DDS) driver.
 
     Controls one DDS channel managed directly by the core device's runtime.
 
-    :param dds_sysclk: DDS system frequency, used for computing the frequency
-        tuning words.
+    This class should not be used directly, instead, use the chip-specific
+    drivers such as ``AD9858`` and ``AD9914``.
+
+    :param sysclk: DDS system frequency.
     :param channel: channel number of the DDS device to control.
     """
-    class DBKeys:
-        core = Device()
-        dds_sysclk = Argument(1*GHz)
-        channel = Argument()
-
-    def build(self):
+    def __init__(self, dmgr, sysclk, channel):
+        self.core = dmgr.get("core")
+        self.sysclk = sysclk
+        self.channel = channel
         self.phase_mode = PHASE_MODE_CONTINUOUS
 
     @portable
@@ -68,21 +65,33 @@ class DDS(AutoDB):
         """Returns the frequency tuning word corresponding to the given
         frequency.
         """
-        return round(2**32*frequency/self.dds_sysclk)
+        return round(2**32*frequency/self.sysclk)
 
     @portable
     def ftw_to_frequency(self, ftw):
         """Returns the frequency corresponding to the given frequency tuning
         word.
         """
-        return ftw*self.dds_sysclk/2**32
+        return ftw*self.sysclk/2**32
+
+    @portable
+    def turns_to_pow(self, turns):
+        """Returns the phase offset word corresponding to the given phase
+        in turns."""
+        return round(turns*2**self.pow_width)
+
+    @portable
+    def pow_to_turns(self, pow):
+        """Returns the phase in turns corresponding to the given phase offset
+        word."""
+        return pow/2**self.pow_width
 
     @kernel
     def init(self):
         """Resets and initializes the DDS channel.
 
         The runtime does this for all channels upon core device startup."""
-        syscall("dds_init", time_to_cycles(now()), self.channel)
+        syscall("dds_init", now_mu(), self.channel)
 
     @kernel
     def set_phase_mode(self, phase_mode):
@@ -105,17 +114,37 @@ class DDS(AutoDB):
         self.phase_mode = phase_mode
 
     @kernel
-    def set(self, frequency, phase_mode=PHASE_MODE_DEFAULT, phase_offset=0):
+    def set_mu(self, frequency, phase=0, phase_mode=_PHASE_MODE_DEFAULT):
         """Sets the DDS channel to the specified frequency and phase.
 
+        This uses machine units (FTW and POW). The frequency tuning word width
+        is 32, whereas the phase offset word width depends on the type of DDS
+        chip and can be retrieved via the ``pow_width`` attribute.
+
         :param frequency: frequency to generate.
+        :param phase: adds an offset, in turns, to the phase.
         :param phase_mode: if specified, overrides the default phase mode set
             by ``set_phase_mode`` for this call.
-        :param phase_offset: adds an offset, in turns, to the phase.
         """
-        if phase_mode == PHASE_MODE_DEFAULT:
+        if phase_mode == _PHASE_MODE_DEFAULT:
             phase_mode = self.phase_mode
+        syscall("dds_set", now_mu(), self.channel,
+           frequency, round(phase*2**self.pow_width), phase_mode)
 
-        syscall("dds_set", time_to_cycles(now()), self.channel,
-           self.frequency_to_ftw(frequency), round(phase_offset*2**14),
-           self.phase_mode)
+    @kernel
+    def set(self, frequency, phase=0, phase_mode=_PHASE_MODE_DEFAULT):
+        """Like ``set_mu``, but uses Hz and turns."""
+        self.set_mu(self.frequency_to_ftw(frequency),
+                    self.turns_to_pow(phase), phase_mode)
+
+
+class AD9858(_DDSGeneric):
+    """Driver for AD9858 DDS chips. See ``_DDSGeneric`` for a description
+    of the functionality."""
+    pow_width = 14
+
+
+class AD9914(_DDSGeneric):
+    """Driver for AD9914 DDS chips. See ``_DDSGeneric`` for a description
+    of the functionality."""
+    pow_width = 16

artiq/coredevice/runtime.py

@@ -1,7 +1,7 @@
 import os
 
-import llvmlite.ir as ll
-import llvmlite.binding as llvm
+import llvmlite_or1k.ir as ll
+import llvmlite_or1k.binding as llvm
 
 from artiq.py2llvm import base_types, fractions, lists
 from artiq.language import units
@@ -21,6 +21,7 @@ _syscalls = {
     "ttl_set_oe": "Iib:n",
     "ttl_set_sensitivity": "Iii:n",
     "ttl_get": "iI:I",
+    "ttl_clock_set": "Iii:n",
     "dds_init": "Ii:n",
     "dds_batch_enter": "I:n",
     "dds_batch_exit": "n:n",
@@ -195,7 +196,7 @@ def _debug_dump_obj(obj):
     raise IOError
 
 
-class Environment(LinkInterface):
+class Runtime(LinkInterface):
     def __init__(self):
         self.cpu_type = "or1k"
         # allow 1ms for all initial DDS programming
@@ -208,4 +209,4 @@ class Environment(LinkInterface):
         return obj
 
     def __repr__(self):
-        return "<Environment {}>".format(self.cpu_type)
+        return "<Runtime {}>".format(self.cpu_type)

artiq/coredevice/ttl.py

@@ -1,49 +1,7 @@
 from artiq.language.core import *
-from artiq.language.db import *
 
 
-class LLTTLOut(AutoDB):
-    """Low-level RTIO TTL output driver.
-
-    Allows setting RTIO TTL outputs at arbitrary times, without time
-    unit conversion.
-
-    This is meant to be used mostly in drivers; consider using
-    ``TTLOut`` instead.
-
-    This should be used with output-only channels.
-    """
-    class DBKeys:
-        core = Device()
-        channel = Argument()
-
-    @kernel
-    def set_o(self, t, value):
-        """Sets the output value of the RTIO channel.
-
-        :param t: timestamp in RTIO cycles (64-bit integer).
-        :param value: value to set at the output.
-        """
-        syscall("ttl_set_o", t, self.channel, value)
-
-    @kernel
-    def on(self, t):
-        """Turns the RTIO channel on.
-
-        :param t: timestamp in RTIO cycles (64-bit integer).
-        """
-        self.set_o(t, True)
-
-    @kernel
-    def off(self, t):
-        """Turns the RTIO channel off.
-
-        :param t: timestamp in RTIO cycles (64-bit integer).
-        """
-        self.set_o(t, False)
-
-
-class TTLOut(AutoDB):
+class TTLOut:
     """RTIO TTL output driver.
 
     This should be used with output-only channels.
@@ -51,45 +9,53 @@ class TTLOut(AutoDB):
     :param core: core device
     :param channel: channel number
     """
-    class DBKeys:
-        core = Device()
-        channel = Argument()
+    def __init__(self, dmgr, channel):
+        self.core = dmgr.get("core")
+        self.channel = channel
 
-
-    def build(self):
         # in RTIO cycles
         self.o_previous_timestamp = int64(0)
 
     @kernel
-    def _set_o(self, o):
-        syscall("ttl_set_o", time_to_cycles(now()), self.channel, o)
-        self.o_previous_timestamp = time_to_cycles(now())
+    def set_o(self, o):
+        syscall("ttl_set_o", now_mu(), self.channel, o)
+        self.o_previous_timestamp = now_mu()
 
     @kernel
     def sync(self):
-        """Busy-waits until all programmed level switches have been effected."""
+        """Busy-wait until all programmed level switches have been
+        effected."""
         while syscall("rtio_get_counter") < self.o_previous_timestamp:
             pass
 
     @kernel
     def on(self):
         """Sets the output to a logic high state."""
-        self._set_o(True)
+        self.set_o(True)
 
     @kernel
     def off(self):
-        """Sets the output to a logic low state."""
-        self._set_o(False)
+        """Set the output to a logic low state."""
+        self.set_o(False)
+
+    @kernel
+    def pulse_mu(self, duration):
+        """Pulse the output high for the specified duration
+        (in machine units)."""
+        self.on()
+        delay_mu(duration)
+        self.off()
 
     @kernel
     def pulse(self, duration):
-        """Pulses the output high for the specified duration."""
+        """Pulse the output high for the specified duration
+        (in seconds)."""
         self.on()
         delay(duration)
         self.off()
 
 
-class TTLInOut(AutoDB):
+class TTLInOut:
     """RTIO TTL input/output driver.
 
     In output mode, provides functions to set the logic level on the signal.
@@ -107,78 +73,113 @@ class TTLInOut(AutoDB):
     :param core: core device
     :param channel: channel number
     """
-    class DBKeys:
-        core = Device()
-        channel = Argument()
+    def __init__(self, dmgr, channel):
+        self.core = dmgr.get("core")
+        self.channel = channel
 
-    def build(self):
         # in RTIO cycles
         self.o_previous_timestamp = int64(0)
         self.i_previous_timestamp = int64(0)
 
     @kernel
-    def _set_oe(self, oe):
-        syscall("ttl_set_oe", time_to_cycles(now()), self.channel, oe)
+    def set_oe(self, oe):
+        syscall("ttl_set_oe", now_mu(), self.channel, oe)
 
     @kernel
     def output(self):
-        self._set_oe(True)
+        self.set_oe(True)
 
     @kernel
     def input(self):
-        self._set_oe(False)
+        self.set_oe(False)
 
     @kernel
-    def _set_o(self, o):
-        syscall("ttl_set_o", time_to_cycles(now()), self.channel, o)
-        self.o_previous_timestamp = time_to_cycles(now())
+    def set_o(self, o):
+        syscall("ttl_set_o", now_mu(), self.channel, o)
+        self.o_previous_timestamp = now_mu()
 
     @kernel
     def sync(self):
-        """Busy-waits until all programmed level switches have been effected."""
+        """Busy-wait until all programmed level switches have been
+        effected."""
         while syscall("rtio_get_counter") < self.o_previous_timestamp:
             pass
 
     @kernel
     def on(self):
-        """Sets the output to a logic high state."""
-        self._set_o(True)
+        """Set the output to a logic high state."""
+        self.set_o(True)
 
     @kernel
     def off(self):
-        """Sets the output to a logic low state."""
-        self._set_o(False)
+        """Set the output to a logic low state."""
+        self.set_o(False)
+
+    @kernel
+    def pulse_mu(self, duration):
+        """Pulses the output high for the specified duration
+        (in machine units)."""
+        self.on()
+        delay_mu(duration)
+        self.off()
 
     @kernel
     def pulse(self, duration):
-        """Pulses the output high for the specified duration."""
+        """Pulses the output high for the specified duration
+        (in seconds)."""
         self.on()
         delay(duration)
         self.off()
 
     @kernel
     def _set_sensitivity(self, value):
-        syscall("ttl_set_sensitivity", time_to_cycles(now()), self.channel, value)
-        self.i_previous_timestamp = time_to_cycles(now())
+        syscall("ttl_set_sensitivity", now_mu(), self.channel, value)
+        self.i_previous_timestamp = now_mu()
+
+    @kernel
+    def gate_rising_mu(self, duration):
+        """Register rising edge events for the specified duration
+        (in machine units)."""
+        self._set_sensitivity(1)
+        delay_mu(duration)
+        self._set_sensitivity(0)
+
+    @kernel
+    def gate_falling_mu(self, duration):
+        """Register falling edge events for the specified duration
+        (in machine units)."""
+        self._set_sensitivity(2)
+        delay_mu(duration)
+        self._set_sensitivity(0)
+
+    @kernel
+    def gate_both_mu(self, duration):
+        """Register both rising and falling edge events for the specified
+        duration (in machine units)."""
+        self._set_sensitivity(3)
+        delay_mu(duration)
+        self._set_sensitivity(0)
 
     @kernel
     def gate_rising(self, duration):
-        """Register rising edge events for the specified duration."""
+        """Register rising edge events for the specified duration
+        (in seconds)."""
         self._set_sensitivity(1)
         delay(duration)
         self._set_sensitivity(0)
 
     @kernel
     def gate_falling(self, duration):
-        """Register falling edge events for the specified duration."""
+        """Register falling edge events for the specified duration
+        (in seconds)."""
         self._set_sensitivity(2)
         delay(duration)
         self._set_sensitivity(0)
 
     @kernel
-    def gate_both(self, duration):
+    def gate_both_mu(self, duration):
         """Register both rising and falling edge events for the specified
-        duration."""
+        duration (in seconds)."""
         self._set_sensitivity(3)
         delay(duration)
         self._set_sensitivity(0)
@@ -194,11 +195,81 @@ class TTLInOut(AutoDB):
         return count
 
     @kernel
-    def timestamp(self):
+    def timestamp_mu(self):
         """Poll the RTIO input and returns an event timestamp, according to
         the gating.
 
         If the gate is permanently closed, returns a negative value.
         """
-        return cycles_to_time(syscall("ttl_get", self.channel,
-                                      self.i_previous_timestamp))
+        return syscall("ttl_get", self.channel, self.i_previous_timestamp)
+
+
+class TTLClockGen:
+    """RTIO TTL clock generator driver.
+
+    This should be used with TTL channels that have a clock generator
+    built into the gateware (not compatible with regular TTL channels).
+
+    :param core: core device
+    :param channel: channel number
+    """
+    def __init__(self, dmgr, channel):
+        self.core = dmgr.get("core")
+        self.channel = channel
+
+    def build(self):
+        # in RTIO cycles
+        self.previous_timestamp = int64(0)
+        self.acc_width = 24
+
+    @portable
+    def frequency_to_ftw(self, frequency):
+        """Returns the frequency tuning word corresponding to the given
+        frequency.
+        """
+        return round(2**self.acc_width*frequency*self.core.ref_period)
+
+    @portable
+    def ftw_to_frequency(self, ftw):
+        """Returns the frequency corresponding to the given frequency tuning
+        word.
+        """
+        return ftw/self.core.ref_period/2**self.acc_width
+
+    @kernel
+    def set_mu(self, frequency):
+        """Set the frequency of the clock, in machine units.
+
+        This also sets the phase, as the time of the first generated rising
+        edge corresponds to the time of the call.
+
+        The clock generator contains a 24-bit phase accumulator operating on
+        the RTIO clock. At each RTIO clock tick, the frequency tuning word is
+        added to the phase accumulator. The most significant bit of the phase
+        accumulator is connected to the TTL line. Setting the frequency tuning
+        word has the additional effect of setting the phase accumulator to
+        0x800000.
+
+        Due to the way the clock generator operates, frequency tuning words
+        that are not powers of two cause jitter of one RTIO clock cycle at the
+        output.
+        """
+        syscall("ttl_clock_set", now_mu(), self.channel, frequency)
+        self.previous_timestamp = now_mu()
+
+    @kernel
+    def set(self, frequency):
+        """Like ``set_mu``, but using Hz."""
+        self.set_mu(self.frequency_to_ftw(frequency))
+
+    @kernel
+    def stop(self):
+        """Stop the toggling of the clock and set the output level to 0."""
+        self.set_mu(0)
+
+    @kernel
+    def sync(self):
+        """Busy-wait until all programmed frequency switches and stops have
+        been effected."""
+        while syscall("rtio_get_counter") < self.o_previous_timestamp:
+            pass

artiq/devices/lda/driver.py

@@ -2,7 +2,7 @@ import logging
 import ctypes
 import struct
 
-from artiq.language.units import dB, check_unit, Quantity
+from artiq.language.units import dB
 
 
 logger = logging.getLogger("lda")
@@ -47,14 +47,7 @@ class Ldasim:
         """
 
         step = self.get_att_step_size()
-
-        if isinstance(attenuation, Quantity):
-            check_unit(attenuation, "dB")
-            att = attenuation
-        else:
-            att = attenuation*dB
-
-        att = round(att/step)*step
+        att = round(attenuation/step)*step
 
         if att > self.get_att_max():
             raise ValueError("Cannot set attenuation {} > {}"
@@ -62,7 +55,7 @@ class Ldasim:
         elif att < 0*dB:
             raise ValueError("Cannot set attenuation {} < 0".format(att))
         else:
-            att = round(att.amount*4)/4. * dB
+            att = round(att*4)/4. * dB
             self._attenuation = att
 
     def ping(self):
@@ -117,7 +110,7 @@ class Lda:
                                          self._product_ids[self.product],
                                          self.serial)
         if not self._dev:
-            raise IOError
+            raise IOError("Device not found")
 
     def close(self):
         """Close the device."""
@@ -218,14 +211,7 @@ class Lda:
         """
 
         step = self.get_att_step_size()
-
-        if isinstance(attenuation, Quantity):
-            check_unit(attenuation, "dB")
-            att = attenuation
-        else:
-            att = attenuation*dB
-
-        att = round(att/step)*step
+        att = round(attenuation/step)*step
 
         if att > self.get_att_max():
             raise ValueError("Cannot set attenuation {} > {}"
@@ -233,7 +219,7 @@ class Lda:
         elif att < 0*dB:
             raise ValueError("Cannot set attenuation {} < 0".format(att))
         else:
-            self.set(0x8d, bytes([int(round(att.amount*4))]))
+            self.set(0x8d, bytes([int(round(att*4))]))
 
     def ping(self):
         try:

artiq/devices/novatech409b/driver.py

@@ -15,10 +15,26 @@ class UnexpectedResponse(Exception):
 
 
 class Novatech409B:
-    """Driver for Novatech 409B 4-channel DDS"""
+    """Driver for Novatech 409B 4-channel DDS.
 
-    # maximum frequency of Novatech 409B when using PLL and external reference
-    max_freq_with_pll = 171.1276031
+    All output channels are in range [0, 1, 2, 3].
+    All frequencies are in Hz.
+    All phases are in turns.
+    All amplitudes are in volts.
+    """
+
+    error_codes = {
+        "?0": "Unrecognized Command",
+        "?1": "Bad Frequency",
+        "?2": "Bad AM Command",
+        "?3": "Input line too long",
+        "?4": "Bad Phase",
+        "?5": "Bad Time",
+        "?6": "Bad Mode",
+        "?7": "Bad Amp",
+        "?8": "Bad Constant",
+        "?f": "Bad Byte"
+    }
 
     def __init__(self, serial_dev):
         if serial_dev is None:
@@ -32,68 +48,67 @@ class Novatech409B:
                 parity="N",
                 stopbits=1,
                 xonxoff=0,
-                timeout=0.2)
+                timeout=1.0)
         self.setup()
 
     def close(self):
-        """Close the serial port"""
+        """Close the serial port."""
         if not self.simulation:
             self.port.close()
 
     def _ser_send(self, cmd, get_response=True):
-        """send a string to the serial port
+        """Send a string to the serial port."""
 
-        Routine for sending serial commands to device. It sends strings
-        and listens for a response terminated by a carriage return.
+        # Low-level routine for sending serial commands to device. It sends
+        # strings and listens for a response terminated by a carriage return.
+        # example:
+        # ser_send("F0 1.0") # sets the freq of channel 0 to 1.0 MHz
 
-        example:
-        ser_send("F0 1.0") # sets the freq of channel 0 to 1.0 MHz
-
-        :param cmd: a character string to send to device
-        :returns: None
-        """
         if self.simulation:
             print(cmd)
         else:
-            self.port.flush()
+            self.port.flushInput()
             self.port.write((cmd + "\r\n").encode())
-            if get_response:
             result = self.port.readline().rstrip().decode()
-                if result != "OK":
-                    raise UnexpectedResponse(result)
+            if get_response:
+                logger.debug("got response from device: %s", result)
+                if result == "OK":
+                    pass
+                elif result == "":
+                    raise UnexpectedResponse("Response from device timed out")
+                else:
+                    try:
+                        errstr = self.error_codes[result]
+                    except KeyError:
+                        errstr = "Unrecognized reply: '{}'".format(result)
+                    s = "Error Code = {ec}, {ecs}".format(ec=result, ecs=errstr)
+                    raise UnexpectedResponse(s)
+            else:
+                pass
 
     def reset(self):
-        """command hardware reset of 409B
-
-        returns: None
-        """
+        """Hardware reset of 409B."""
         self._ser_send("R", get_response=False)
         time.sleep(1)
         self.setup()
 
     def setup(self):
-        """initial setup of 409B
+        """Initial setup of 409B."""
 
-        Setup the Novatech 409B with the following defaults.
-        * command echo off ("E d")
-        * external clock ("") 10 MHz sinusoid -1 to +7 dBm
+        # Setup the Novatech 409B with the following defaults:
+        # * command echo off ("E d")
+        # * external clock ("") 10 MHz sinusoid -1 to +7 dBm
 
-        :returns: None
-        """
-        # disable command echo
         self._ser_send("E d", get_response=False)
         self.set_phase_continuous(True)
         self.set_simultaneous_update(False)
 
     def save_state_to_eeprom(self):
-        """save current state to EEPROM
-
-        Saves current state into EEPROM and sets valid flag.
-        State used as default upon next power up or reset. """
+        """Save current state to EEPROM."""
         self._ser_send("S")
 
     def set_phase_continuous(self, is_continuous):
-        """toggle phase continuous mode
+        """Toggle phase continuous mode.
 
         Sends the "M n" command. This turns off the automatic
         clearing of the phase register. In this mode, the phase
@@ -109,7 +124,9 @@ class Novatech409B:
             self._ser_send("M a")
 
     def set_simultaneous_update(self, simultaneous):
-        """Sends the "I m" command. In this mode an update
+        """Set simultaneous update mode.
+
+        Sends the "I m" command. In this mode an update
         pulse will not be sent to the DDS chip until
         an "I p" command is sent. This is useful when it is
         important to change all the outputs to new values
@@ -121,140 +138,75 @@ class Novatech409B:
             self._ser_send("I a")
 
     def set_freq(self, ch_no, freq):
-        """set_freq(ch_no,freq):
-        Set ch_no to frequency freq MHz"""
-        if ch_no < 0 or ch_no > 3:
-            raise ValueError("Incorrect channel number {}".format(ch_no))
-        if freq < 0.0 or freq > self.max_freq_with_pll:
-            raise ValueError("Incorrect frequency {}".format(freq))
-        # do this immediately, disable SimultaneousUpdate mode
+        """Set frequency of one channel."""
         self.set_simultaneous_update(False)
-        self._ser_send("F{:d} {:f}".format(ch_no, freq))
+        # Novatech expects MHz
+        self._ser_send("F{:d} {:f}".format(ch_no, freq/1e6)) 
 
     def set_phase(self, ch_no, phase):
-        """set DDS phase
-
-        :param ch_no: 0 to 3
-        :param phase: phase angle in cycles [0, 1]
-        :returns: None
-        """
-        if ch_no < 0 or ch_no > 3:
-            raise ValueError("Incorrect channel number {}".format(ch_no))
-        if phase < 0 or phase > 1:
-            raise ValueError("Incorrect phase {}".format(phase))
+        """Set phase of one channel."""
         # do this immediately, disable SimultaneousUpdate mode
         self.set_simultaneous_update(False)
         # phase word is required by device
         # N is an integer from 0 to 16383. Phase is set to
         # N*360/16384 deg; in ARTIQ represent phase in cycles [0, 1]
-        phase_word = round(phase*16384)
-        if phase_word >= 16384:
-            phase_word -= 16384
+        phase_word = round(phase*16383)
         cmd = "P{:d} {:d}".format(ch_no, phase_word)
         self._ser_send(cmd)
 
     def set_freq_all_phase_continuous(self, freq):
-        """set frequency of all channels simultaneously
+        """Set frequency of all channels simultaneously.
 
         Set frequency of all channels simultaneously.
         1) all DDSs are set to phase continuous mode
         2) all DDSs are simultaneously set to new frequency
         Together 1 and 2 ensure phase continuous frequency switching.
-
-        :param freq: frequency in MHz
-        :returns: None
         """
         self.set_simultaneous_update(True)
         self.set_phase_continuous(True)
-        for channel_num in range(4):
-            self.set_freq(channel_num, freq)
+        for i in range(4):
+            self.set_freq(i, freq)
         # send command necessary to update all channels at the same time
         self._ser_send("I p")
 
     def set_phase_all(self, phase):
-        """set phase of all DDS channels simultaneously
+        """Set phase of all channels simultaneously."""
 
-        Set phase of all DDS channels at the same time. For example,::
-            set_phase_all([0, .25, 0.5, 0.75])
-
-        :param phase: vector of four phases (in cycles [0, 1])
-        :returns: None
-        """
         self.set_simultaneous_update(True)
         # Note that this only works if the continuous
         # phase switching is turned off.
         self.set_phase_continuous(False)
-        for ch_no in range(4):
-            self.set_phase(ch_no, phase[ch_no])
+        for i in range(4):
+            self.set_phase(i, phase)
         # send command necessary to update all channels at the same time
         self._ser_send("I p")
 
-    def freq_sweep_all_phase_continuous(self, f0, f1, t):
-        """ sweep phase of all DDSs, phase continuous
+    def set_gain(self, ch_no, volts):
+        """Set amplitude of one channel."""
 
-        Sweep frequency in a phase continuous fashion.
+        # due to error in Novatech it doesn't generate an error for
+        # dac_value>1024, so need to trap.
+        dac_value = int(math.floor(volts/0.51*1024))
+        if dac_value < 0 or dac_value > 1023:
+            s = "Amplitude out of range {v}".format(v=volts)
+            raise ValueError(s)
 
-        :param f0: starting frequency (MHz)
-        :param f1: ending frequency (MHz)
-        :param t: sweep duration (seconds)
-        :returns: None
-        """
-        # TODO: consider using artiq.language.units
-        if f0 == f1:
-            return
-        # get sign of sweep
-        if f1 > f0:
-            df_sign = 1
-        else:
-            df_sign = -1
-
-        self.set_phase_continuous(True)
-        self.set_simultaneous_update(True)
-        # calculate delay
-        # note that a single call to self.set_freq_all_phase_continuous()
-        # takes time t_for_one_freq_set; fix duration empirically
-        t_for_one_freq_set = 0.264
-        dt = t_for_one_freq_set
-        n_steps = int(math.ceil(t/dt))
-        df = abs(f0-f1)/n_steps
-        for n in range(n_steps):
-            fnow = f0+n*df_sign*df
-            self.set_freq_all_phase_continuous(fnow)
-        self.set_freq_all_phase_continuous(f1)
-
-    def output_scale(self, ch_no, frac):
-        """changes amplitude of a DDS
-
-        :param ch_no: DDS channel 0, 1, 2 or 3
-        :param frac: 0 to 1 (full attenuation to no attenuation)
-        :returns: None
-        """
         self.set_simultaneous_update(False)
-        dac_ch_no = int(math.floor(frac*1024))
-        s = "V{:d} {:d}".format(ch_no, dac_ch_no)
+        s = "V{:d} {:d}".format(ch_no, dac_value)
         self._ser_send(s)
 
-    def output_scale_all(self, frac):
-        """changes amplitude of all DDSs
-
-        :param frac: 0 to 1 (full attenuation to no attenuation)
-        """
-        for ch_no in range(4):
-            self.output_scale(ch_no, frac)
-
-    def output_on_off(self, ch_no, on):
-        """turns on or off the DDS
-
-        :param ch_no: DDS channel 0, 1, 2 or 3
-        """
-        if on:
-            self.output_scale(ch_no, 1.0)
+    def get_status(self):
+        if self.simulation:
+            return ["00989680 2000 01F5 0000 00000000 00000000 000301",
+                "00989680 2000 01F5 0000 00000000 00000000 000301",
+                "00989680 2000 01F5 0000 00000000 00000000 000301",
+                "00989680 2000 01F5 0000 00000000 00000000 000301",
+                "80 BC0000 0000 0102 21"]
         else:
-            self.output_scale(ch_no, 0.0)
-
-    def output_on_off_all(self, on):
-        """turns on or off the all the DDSs"""
-        if on:
-            self.output_scale_all(1.0)
-        else:
-            self.output_scale_all(0.0)
+            # status message is multi-line
+            self.port.flushInput()
+            self.port.write(("QUE" + "\r\n").encode())
+            result = self.port.readlines()
+            result = [r.rstrip().decode() for r in result]
+            logger.debug("got device status: %s", result)
+            return result

artiq/devices/pdq2/mediator.py

@@ -1,7 +1,5 @@
 from artiq.language.core import *
-from artiq.language.db import *
 from artiq.language.units import *
-from artiq.coredevice import ttl
 
 
 frame_setup = 20*ns
@@ -76,7 +74,7 @@ class _Frame:
         self.pdq = pdq
         self.frame_number = frame_number
         self.segments = []
-        self.segment_count = 0
+        self.segment_count = 0  # == len(self.segments), used in kernel
 
         self.invalidated = False
 
@@ -99,7 +97,7 @@ class _Frame:
 
     def _arm(self):
         self.segment_delays = [
-            time_to_cycles(s.get_duration()*delay_margin_factor, self.core)
+            seconds_to_mu(s.get_duration()*delay_margin_factor, self.core)
             for s in self.segments]
 
     def _invalidate(self):
@@ -125,7 +123,8 @@ class _Frame:
         if not self.pdq.armed:
             raise ArmError
 
-        t = time_to_cycles(now()) - time_to_cycles(trigger_duration/2)
+        call_t = now_mu()
+        trigger_start_t = call_t - seconds_to_mu(trigger_duration/2)
 
         if self.pdq.current_frame >= 0:
             # PDQ is in the middle of a frame. Check it is us.
@@ -136,15 +135,16 @@ class _Frame:
             # to play our first segment.
             self.pdq.current_frame = self.frame_number
             self.pdq.next_segment = 0
-            t2 = t - time_to_cycles(frame_setup)
-            self.pdq.frame0.set_value(t2, self.frame_number & 1)
-            self.pdq.frame1.set_value(t2, (self.frame_number & 2) >> 1)
-            self.pdq.frame2.set_value(t2, (self.frame_number & 4) >> 2)
+            at_mu(trigger_start_t - seconds_to_mu(frame_setup))
+            self.pdq.frame0.set_o(bool(self.frame_number & 1))
+            self.pdq.frame1.set_o(bool((self.frame_number & 2) >> 1))
+            self.pdq.frame2.set_o(bool((self.frame_number & 4) >> 2))
 
-        self.pdq.trigger.on(t)
-        self.pdq.trigger.off(t + time_to_cycles(trigger_duration))
+        at_mu(trigger_start_t)
+        self.pdq.trigger.pulse(trigger_duration)
 
-        delay(cycles_to_time(self.segment_delays[self.pdq.next_segment]))
+        at_mu(call_t)
+        delay_mu(self.segment_delays[self.pdq.next_segment])
         self.pdq.next_segment += 1
 
         # test for end of frame
@@ -153,23 +153,14 @@ class _Frame:
             self.pdq.next_segment = -1
 
 
-class CompoundPDQ2(AutoDB):
-    class DBKeys:
-        core = Device()
-        pdq2_devices = Argument()
-        rtio_trigger = Argument()
-        rtio_frame = Argument()
-
-    def build(self):
-        self.pdq2s = [self.dbh.get_device(d) for d in self.pdq2_devices]
-        self.trigger = ttl.LLTTLOut(
-            core=self.core, channel=self.rtio_trigger)
-        self.frame0 = ttl.LLTTLOut(
-            core=self.core, channel=self.rtio_frame[0])
-        self.frame1 = ttl.LLTTLOut(
-            core=self.core, channel=self.rtio_frame[1])
-        self.frame2 = ttl.LLTTLOut(
-            core=self.core, channel=self.rtio_frame[2])
+class CompoundPDQ2:
+    def __init__(self, dmgr, pdq2_devices, trigger_device, frame_devices):
+        self.core = dmgr.get("core")
+        self.pdq2s = [dmgr.get(d) for d in self.pdq2_devices]
+        self.trigger = dmgr.get(trigger_device)
+        self.frame0 = dmgr.get(frame_devices[0])
+        self.frame1 = dmgr.get(frame_devices[1])
+        self.frame2 = dmgr.get(frame_devices[2])
 
         self.frames = []
         self.current_frame = -1
@@ -187,6 +178,7 @@ class CompoundPDQ2(AutoDB):
             raise ArmError
         for frame in self.frames:
             frame._arm()
+        self.armed = True
 
         full_program = [f._get_program() for f in self.frames]
         for n, pdq2 in enumerate(self.pdq2s):

artiq/devices/pxi6733/driver.py

@@ -1,9 +1,14 @@
 # Yann Sionneau <ys@m-labs.hk>, 2015
 
-from ctypes import byref
+from ctypes import byref, c_ulong
+import logging
+
 import numpy as np
 
 
+logger = logging.getLogger(__name__)
+
+
 class DAQmxSim:
     def load_sample_values(self, values):
         pass
@@ -11,61 +16,124 @@ class DAQmxSim:
     def close(self):
         pass
 
+    def ping(self):
+        return True
+
 
 class DAQmx:
     """NI PXI6733 DAQ interface."""
 
-    def __init__(self, device, analog_output, clock):
-        import PyDAQmx as daq
+    def __init__(self, channels, clock):
+        """
+        :param channels: List of channels as a string, following
+            the physical channels lists and ranges NI-DAQmx syntax.
 
-        self.device = device
-        self.analog_output = analog_output
-        self.clock = clock
-        self.tasks = []
-        self.daq = daq
+            Example: Dev1/ao0, Dev1/ao1:ao3
+        :param clock: Clock source terminal as a string, following
+            NI-DAQmx terminal names syntax.
 
-    def done_callback_py(self, taskhandle, status, callback_data):
-        self.daq.DAQmxClearTask(taskhandle)
-        self.tasks.remove(taskhandle)
-
-    def load_sample_values(self, values):
-        """Load sample values into PXI 6733 device.
-
-        This loads sample values into the PXI 6733 device and then
-        configures a task to output those samples at each clock rising
-        edge.
-
-        A callback is registered to clear the task (deallocate resources)
-        when the task has completed.
-
-        :param values: A numpy array of sample values to load in the device.
+            Example: PFI5
         """
 
+        import PyDAQmx as daq
+
+        self.channels = channels.encode()
+        self.clock = clock.encode()
+        self.task = None
+        self.daq = daq
+
+    def _done_callback(self, taskhandle, status, callback_data):
+        if taskhandle != self.task:
+            logger.warning("done callback called with unexpected task")
+        else:
+            self.clear_pending_task()
+
+    def ping(self):
+        try:
+            data = (c_ulong*1)()
+            self.daq.DAQmxGetDevSerialNum(self.device, data)
+        except:
+            return False
+        return True
+
+    def load_sample_values(self, sampling_freq, values):
+        """Load sample values into PXI 6733 device.
+
+        This loads sample values into the PXI 6733 device.
+        The device will output samples at each clock rising edge.
+        The device waits for a clock rising edge to output the first sample.
+
+        When using several channels simultaneously, you can either concatenate
+        the values for the different channels in a 1-dimensional ``values``
+        numpy ndarray.
+
+        Example:
+
+        >>> values = np.array([ch0_samp0, ch0_samp1, ch1_samp0, ch1_samp1],
+                              dtype=float)
+
+        In this example the first two samples will be output via the first
+        channel and the two following samples will be output via the second
+        channel.
+
+        Or you can use a 2-dimensional numpy ndarray like this:
+
+        >>> values = np.array([[ch0_samp0, ch0_samp1],[ch1_samp0, ch1_samp1]],
+                              dtype=float)
+
+        Any call to this method will cancel any previous task even if it has
+        not yet completed.
+
+        :param sampling_freq: The sampling frequency in samples per second.
+        :param values: A numpy ndarray of sample values (in volts) to load in
+            the device.
+        """
+
+        self.clear_pending_task()
+        values = values.flatten()
         t = self.daq.Task()
-        t.CreateAOVoltageChan(self.device+b"/"+self.analog_output, b"",
+        t.CreateAOVoltageChan(self.channels, b"",
                               min(values), max(values),
                               self.daq.DAQmx_Val_Volts, None)
-        t.CfgSampClkTiming(self.clock, 1000.0, self.daq.DAQmx_Val_Rising,
-                           self.daq.DAQmx_Val_FiniteSamps, len(values))
+
+        channel_number = (c_ulong*1)()
+        t.GetTaskNumChans(channel_number)
+        nb_values = len(values)
+        if nb_values % channel_number[0]:
+            self.daq.DAQmxClearTask(t.taskHandle)
+            raise ValueError("The size of the values array must be a multiple "
+                             "of the number of channels ({})"
+                             .format(channel_number[0]))
+        samps_per_channel = nb_values // channel_number[0]
+
+        t.CfgSampClkTiming(self.clock, sampling_freq,
+                           self.daq.DAQmx_Val_Rising,
+                           self.daq.DAQmx_Val_FiniteSamps, samps_per_channel)
         num_samps_written = self.daq.int32()
         values = np.require(values, dtype=float,
                             requirements=["C_CONTIGUOUS", "WRITEABLE"])
-        ret = t.WriteAnalogF64(len(values), False, 0,
+        ret = t.WriteAnalogF64(samps_per_channel, False, 0,
                                self.daq.DAQmx_Val_GroupByChannel, values,
                                byref(num_samps_written), None)
-        if num_samps_written.value != len(values):
+        if num_samps_written.value != nb_values:
             raise IOError("Error: only {} sample values were written"
                           .format(num_samps_written.value))
         if ret:
             raise IOError("Error while writing samples to the channel buffer")
 
-        done_cb = self.daq.DAQmxDoneEventCallbackPtr(self.done_callback_py)
-        self.tasks.append(t.taskHandle)
+        done_cb = self.daq.DAQmxDoneEventCallbackPtr(self._done_callback)
+        self.task = t.taskHandle
         self.daq.DAQmxRegisterDoneEvent(t.taskHandle, 0, done_cb, None)
         t.StartTask()
 
-    def close(self):
-        """Clear all pending tasks."""
+    def clear_pending_task(self):
+        """Clear any pending task."""
 
-        for t in self.tasks:
-            self.daq.DAQmxClearTask(t)
+        if self.task is not None:
+            self.daq.DAQmxClearTask(self.task)
+            self.task = None
+
+    def close(self):
+        """Free any allocated resources."""
+
+        self.clear_pending_task()

artiq/devices/pxi6733/mediator.py

@@ -0,0 +1,177 @@
+import numpy as np
+
+from artiq.language.core import *
+from artiq.language.units import *
+from artiq.wavesynth.compute_samples import Synthesizer
+
+
+class SegmentSequenceError(Exception):
+    """Raised when attempting to play back a named segment which is not the
+    next in the sequence."""
+    pass
+
+
+class InvalidatedError(Exception):
+    """Raised when attemting to use a frame or segment that has been
+    invalidated (due to disarming the DAQmx)."""
+    pass
+
+
+class ArmError(Exception):
+    """Raised when attempting to arm an already armed DAQmx, to modify the
+    program of an armed DAQmx, or to play a segment on a disarmed DAQmx."""
+    pass
+
+
+def _ceil_div(a, b):
+    return (a + b - 1)//b
+
+
+def _compute_duration_mu(nsamples, ftw, acc_width):
+    # This returns the precise duration so that the clock can be stopped
+    # exactly at the next rising edge (RTLink commands take precedence over
+    # toggling from the accumulator).
+    # If segments are played continuously, replacement of the stop command
+    # will keep the clock running. If the FTW is not a power of two, note that
+    # the accumulator is reset at that time, which causes jitter and frequency
+    # inaccuracy.
+    # Formally:
+    #    duration     *ftw >= nsamples*2**acc_width
+    #   (duration - 1)*ftw <  nsamples*2**acc_width 
+    return _ceil_div(nsamples*2**acc_width, ftw)
+
+
+class _Segment:
+    def __init__(self, frame, segment_number):
+        self.frame = frame
+        self.segment_number = segment_number
+
+        self.lines = []
+
+        # for @kernel
+        self.core = frame.daqmx.core
+
+    def add_line(self, duration, channel_data):
+        if self.frame.invalidated:
+            raise InvalidatedError
+        if self.frame.daqmx.armed:
+            raise ArmError
+        self.lines.append((duration, channel_data))
+
+    @kernel
+    def advance(self):
+        if self.frame.invalidated:
+            raise InvalidatedError
+        if not self.frame.daqmx.armed:
+            raise ArmError
+        # If the frame is currently being played, check that we are next.
+        if (self.frame.daqmx.next_segment >= 0
+                and self.frame.daqmx.next_segment != self.segment_number):
+            raise SegmentSequenceError
+        self.frame.advance()
+
+
+class _Frame:
+    def __init__(self, daqmx):
+        self.daqmx = daqmx
+        self.segments = []
+        self.segment_count = 0  # == len(self.segments), used in kernel
+
+        self.invalidated = False
+
+        # for @kernel
+        self.core = self.daqmx.core
+
+    def create_segment(self, name=None):
+        if self.invalidated:
+            raise InvalidatedError
+        if self.daqmx.armed:
+            raise ArmError
+        segment = _Segment(self, self.segment_count)
+        if name is not None:
+            if hasattr(self, name):
+                raise NameError("Segment name already exists")
+            setattr(self, name, segment)
+        self.segments.append(segment)
+        self.segment_count += 1
+        return segment
+
+    def _arm(self):
+        self.segment_delays = [
+            _compute_duration_mu(s.get_sample_count(),
+                                 self.daqmx.sample_rate,
+                                 self.daqmx.clock.acc_width)
+            for s in self.segments]
+
+    def _invalidate(self):
+        self.invalidated = True
+
+    def _get_samples(self):
+        program = [
+            {
+                "dac_divider": 1,
+                "duration": duration,
+                "channel_data": channel_data,
+            } for duration, channel_data in segment.lines 
+                for segment in self.segments]
+        synth = Synthesizer(self.daqmx.channel_count, program)
+        synth.select(0)
+        # not setting any trigger flag in the program causes the whole
+        # waveform to be computed here for all segments.
+        # slicing the segments is done by stopping the clock.
+        return synth.trigger()
+
+    @kernel
+    def advance(self):
+        if self.invalidated:
+            raise InvalidatedError
+        if not self.daqmx.armed:
+            raise ArmError
+
+        self.daqmx.clock.set(self.daqmx.sample_rate)
+        delay_mu(self.segment_delays[self.daqmx.next_segment])
+        self.daqmx.next_segment += 1
+        self.daqmx.clock.stop()
+
+        # test for end of frame
+        if self.daqmx.next_segment == self.segment_count:
+            self.daqmx.next_segment = -1
+
+
+class CompoundDAQmx:
+    def __init__(self, dmgr, daqmx_device, clock_device, channel_count,
+                 sample_rate, sample_rate_in_mu=False):
+        self.core = dmgr.get("core")
+        self.daqmx = dmgr.get(daqmx_device)
+        self.clock = dmgr.get(clock_device)
+        self.channel_count = channel_count
+        if self.sample_rate_in_mu:
+            self.sample_rate = sample_rate
+        else:
+            self.sample_rate = self.clock.frequency_to_ftw(sample_rate)
+
+        self.frame = None
+        self.next_segment = -1
+        self.armed = False
+
+    def disarm(self):
+        if self.frame is not None:
+            self.frame._invalidate()
+        self.frame = None
+        self.armed = False
+
+    def arm(self):
+        if self.armed:
+            raise ArmError
+        if self.frame is not None:
+            self.frame._arm()
+            self.daqmx.load_sample_values(
+                self.clock.ftw_to_frequency(self.sample_rate),
+                np.array(self.frame._get_samples()))
+        self.armed = True
+
+    def create_frame(self):
+        if self.armed:
+            raise ArmError
+        self.frame = _Frame(self)
+        return self.frame

artiq/devices/thorlabs_tcube/driver.py

@@ -4,7 +4,7 @@ import struct as st
 
 import serial
 
-from artiq.language.units import V, strip_unit
+from artiq.language.units import V
 
 
 logger = logging.getLogger(__name__)
@@ -221,10 +221,10 @@ class Tcube:
     def handle_message(self, msg):
         pass
 
-    def send_request(self, msgreq_id, msgget_id, param1=0, param2=0):
-        Message(msgreq_id, param1, param2).send(self.port)
+    def send_request(self, msgreq_id, wait_for_msgs, param1=0, param2=0, data=None):
+        Message(msgreq_id, param1, param2, data=data).send(self.port)
         msg = msg_id = None
-        while msg is None or msg_id != msgget_id:
+        while msg is None or msg_id not in wait_for_msgs:
             msg = Message.recv(self.port)
             self.handle_message(msg)
             msg_id = msg.id
@@ -247,7 +247,7 @@ class Tcube:
 
     def get_channel_enable_state(self):
         get_msg = self.send_request(MGMSG.MOD_REQ_CHANENABLESTATE,
-                                    MGMSG.MOD_GET_CHANENABLESTATE, 1)
+                                    [MGMSG.MOD_GET_CHANENABLESTATE], 1)
         self.chan_enabled = get_msg.param2
         if self.chan_enabled == 1:
             self.chan_enabled = True
@@ -286,7 +286,7 @@ class Tcube:
 
     def hardware_request_information(self):
         return self.send_request(MGMSG.HW_REQ_INFO,
-                                 MGMSG.HW_GET_INFO)
+                                 [MGMSG.HW_GET_INFO])
 
     def is_channel_enabled(self):
         return self.chan_enabled
@@ -302,7 +302,7 @@ class Tcube:
 class Tpz(Tcube):
     def __init__(self, serial_dev):
         Tcube.__init__(self, serial_dev)
-        self.voltage_limit = self.get_tpz_io_settings()[0].amount
+        self.voltage_limit = self.get_tpz_io_settings()[0]
 
     def handle_message(self, msg):
         msg_id = msg.id
@@ -355,7 +355,7 @@ class Tpz(Tcube):
         """
 
         get_msg = self.send_request(MGMSG.PZ_REQ_POSCONTROLMODE,
-                                    MGMSG.PZ_GET_POSCONTROLMODE, 1)
+                                    [MGMSG.PZ_GET_POSCONTROLMODE], 1)
         return get_msg.param2
 
     def set_output_volts(self, voltage):
@@ -372,8 +372,6 @@ class Tpz(Tcube):
             between the three values 75 V, 100 V and 150 V.
         """
 
-        voltage = strip_unit(voltage, "V")
-
         if voltage < 0 or voltage > self.voltage_limit:
             raise ValueError("Voltage must be in range [0;{}]"
                              .format(self.voltage_limit))
@@ -389,8 +387,8 @@ class Tpz(Tcube):
         """
 
         get_msg = self.send_request(MGMSG.PZ_REQ_OUTPUTVOLTS,
-                                    MGMSG.PZ_GET_OUTPUTVOLTS, 1)
-        return st.unpack("<H", get_msg.data[2:])[0]*self.voltage_limit*V/32767
+                                    [MGMSG.PZ_GET_OUTPUTVOLTS], 1)
+        return st.unpack("<H", get_msg.data[2:])[0]*self.voltage_limit/32767
 
     def set_output_position(self, position_sw):
         """Set output position of the piezo actuator.
@@ -417,7 +415,7 @@ class Tpz(Tcube):
         """
 
         get_msg = self.send_request(MGMSG.PZ_REQ_OUTPUTPOS,
-                                    MGMSG.PZ_GET_OUTPUTPOS, 1)
+                                    [MGMSG.PZ_GET_OUTPUTPOS], 1)
         return st.unpack("<H", get_msg.data[2:])[0]
 
     def set_input_volts_source(self, volt_src):
@@ -459,7 +457,7 @@ class Tpz(Tcube):
         """
 
         get_msg = self.send_request(MGMSG.PZ_REQ_INPUTVOLTSSRC,
-                                    MGMSG.PZ_GET_INPUTVOLTSSRC, 1)
+                                    [MGMSG.PZ_GET_INPUTVOLTSSRC], 1)
         return st.unpack("<H", get_msg.data[2:])[0]
 
     def set_pi_constants(self, prop_const, int_const):
@@ -488,7 +486,7 @@ class Tpz(Tcube):
         """
 
         get_msg = self.send_request(MGMSG.PZ_REQ_PICONSTS,
-                                    MGMSG.PZ_GET_PICONSTS, 1)
+                                    [MGMSG.PZ_GET_PICONSTS], 1)
         return st.unpack("<HH", get_msg.data[2:])
 
     def set_output_lut(self, lut_index, output):
@@ -532,7 +530,6 @@ class Tpz(Tcube):
             <artiq.devices.thorlabs.driver.Tpz.set_tpz_io_settings>` method.
         """
 
-        output = strip_unit(output, "V")
         volt = round(output*32767/self.voltage_limit)
         payload = st.pack("<HHH", 1, lut_index, volt)
         self.send(Message(MGMSG.PZ_SET_OUTPUTLUT, data=payload))
@@ -546,9 +543,9 @@ class Tpz(Tcube):
         """
 
         get_msg = self.send_request(MGMSG.PZ_REQ_OUTPUTLUT,
-                                    MGMSG.PZ_GET_OUTPUTLUT, 1)
+                                    [MGMSG.PZ_GET_OUTPUTLUT], 1)
         (index, output) = st.unpack("<Hh", get_msg.data[2:])
-        return index, output*self.voltage_limit*V/32767
+        return index, output*self.voltage_limit/32767
 
     def set_output_lut_parameters(self, mode, cycle_length, num_cycles,
                                   delay_time, precycle_rest, postcycle_rest):
@@ -626,7 +623,7 @@ class Tpz(Tcube):
         """
 
         get_msg = self.send_request(MGMSG.PZ_REQ_OUTPUTLUTPARAMS,
-                                    MGMSG.PZ_GET_OUTPUTLUTPARAMS, 1)
+                                    [MGMSG.PZ_GET_OUTPUTLUTPARAMS], 1)
         return st.unpack("<HHLLLL", get_msg.data[2:22])
 
     def start_lut_output(self):
@@ -669,7 +666,7 @@ class Tpz(Tcube):
         """
 
         get_msg = self.send_request(MGMSG.PZ_REQ_TPZ_DISPSETTINGS,
-                                    MGMSG.PZ_GET_TPZ_DISPSETTINGS, 1)
+                                    [MGMSG.PZ_GET_TPZ_DISPSETTINGS], 1)
         return st.unpack("<H", get_msg.data)[0]
 
     def set_tpz_io_settings(self, voltage_limit, hub_analog_input):
@@ -684,9 +681,6 @@ class Tpz(Tcube):
             100 V limit.
 
             150 V limit.
-
-            You can either provide this parameter as an integer or as a
-            :class:`artiq.language.units` Volt quantity (e.g. 75*V).
         :param hub_analog_input: When the T-Cube piezo driver unit is used in
             conjunction with the T-Cube Strain Gauge Reader (TSG001) on the
             T-Cube Controller Hub (TCH001), a feedback signal can be passed
@@ -706,7 +700,7 @@ class Tpz(Tcube):
             connectors.
         """
 
-        self.voltage_limit = strip_unit(voltage_limit, "V")
+        self.voltage_limit = voltage_limit
 
         if self.voltage_limit == 75:
             voltage_limit = 1
@@ -727,21 +721,21 @@ class Tpz(Tcube):
             Hub analog input. Refer to :py:meth:`set_tpz_io_settings()
             <artiq.devices.thorlabs.driver.Tpz.set_tpz_io_settings>` for the
             meaning of those parameters.
-        :rtype: a 2 elements tuple (Quantity, int)
+        :rtype: a 2 elements tuple (int, int)
         """
 
         get_msg = self.send_request(MGMSG.PZ_REQ_TPZ_IOSETTINGS,
-                                    MGMSG.PZ_GET_TPZ_IOSETTINGS, 1)
+                                    [MGMSG.PZ_GET_TPZ_IOSETTINGS], 1)
         voltage_limit, hub_analog_input = st.unpack("<HH", get_msg.data[2:6])
         if voltage_limit == 1:
-            voltage_limit = 75*V
+            voltage_limit = 75
         elif voltage_limit == 2:
-            voltage_limit = 100*V
+            voltage_limit = 100
         elif voltage_limit == 3:
-            voltage_limit = 150*V
+            voltage_limit = 150
         else:
             raise ValueError("Voltage limit should be in range [1; 3]")
-        self.voltage_limit = voltage_limit.amount
+        self.voltage_limit = voltage_limit
         return voltage_limit, hub_analog_input
 
 
@@ -763,8 +757,6 @@ class Tdc(Tcube):
             raise MsgError("Hardware error {}: {}"
                            .format(code,
                                    data[4:].decode(encoding="ascii")))
-        elif msg_id == MGMSG.MOT_MOVE_HOMED:
-            pass
         elif (msg_id == MGMSG.MOT_MOVE_COMPLETED or
               msg_id == MGMSG.MOT_MOVE_STOPPED or
               msg_id == MGMSG.MOT_GET_DCSTATUSUPDATE):
@@ -777,6 +769,10 @@ class Tdc(Tcube):
             (self.position, self.velocity, r, self.status) = st.unpack(
                 "<LHHL", data[2:])
 
+    def is_moving(self):
+        status_bits = self.get_status_bits()
+        return (status_bits & 0x2F0) != 0
+
     def set_pot_parameters(self, zero_wnd, vel1, wnd1, vel2, wnd2, vel3,
                            wnd3, vel4):
         """Set pot parameters.
@@ -811,12 +807,12 @@ class Tdc(Tcube):
         """
 
         get_msg = self.send_request(MGMSG.MOT_REQ_POTPARAMS,
-                                    MGMSG.MOT_GET_POTPARAMS, 1)
+                                    [MGMSG.MOT_GET_POTPARAMS], 1)
         return st.unpack("<HLHLHLHL", get_msg.data[2:])
 
     def hub_get_bay_used(self):
         get_msg = self.send_request(MGMSG.HUB_REQ_BAYUSED,
-                                    MGMSG.HUB_GET_BAYUSED)
+                                    [MGMSG.HUB_GET_BAYUSED])
         return get_msg.param1
 
     def set_position_counter(self, position):
@@ -841,7 +837,7 @@ class Tdc(Tcube):
         """
 
         get_msg = self.send_request(MGMSG.MOT_REQ_POSCOUNTER,
-                                    MGMSG.MOT_GET_POSCOUNTER, 1)
+                                    [MGMSG.MOT_GET_POSCOUNTER], 1)
         return st.unpack("<l", get_msg.data[2:])[0]
 
     def set_encoder_counter(self, encoder_count):
@@ -865,7 +861,7 @@ class Tdc(Tcube):
         """
 
         get_msg = self.send_request(MGMSG.MOT_REQ_ENCCOUNTER,
-                                    MGMSG.MOT_GET_ENCCOUNTER, 1)
+                                    [MGMSG.MOT_GET_ENCCOUNTER], 1)
         return st.unpack("<l", get_msg.data[2:])[0]
 
     def set_velocity_parameters(self, acceleration, max_velocity):
@@ -886,7 +882,7 @@ class Tdc(Tcube):
         """
 
         get_msg = self.send_request(MGMSG.MOT_REQ_VELPARAMS,
-                                    MGMSG.MOT_GET_VELPARAMS, 1)
+                                    [MGMSG.MOT_GET_VELPARAMS], 1)
         return st.unpack("<LL", get_msg.data[6:])
 
     def set_jog_parameters(self, mode, step_size, acceleration,
@@ -915,7 +911,7 @@ class Tdc(Tcube):
         """
 
         get_msg = self.send_request(MGMSG.MOT_REQ_JOGPARAMS,
-                                    MGMSG.MOT_GET_JOGPARAMS, 1)
+                                    [MGMSG.MOT_GET_JOGPARAMS], 1)
         (jog_mode, step_size, _, acceleration, max_velocity,
          stop_mode) = st.unpack("<HLLLLH", get_msg.data[2:])
         return jog_mode, step_size, acceleration, max_velocity, stop_mode
@@ -938,7 +934,7 @@ class Tdc(Tcube):
         """
 
         get_msg = self.send_request(MGMSG.MOT_REQ_GENMOVEPARAMS,
-                                    MGMSG.MOT_GET_GENMOVEPARAMS, 1)
+                                    [MGMSG.MOT_GET_GENMOVEPARAMS], 1)
         return st.unpack("<l", get_msg.data[2:])[0]
 
     def set_move_relative_parameters(self, relative_distance):
@@ -960,7 +956,7 @@ class Tdc(Tcube):
         """
 
         get_msg = self.send_request(MGMSG.MOT_REQ_MOVERELPARAMS,
-                                    MGMSG.MOT_GET_MOVERELPARAMS, 1)
+                                    [MGMSG.MOT_GET_MOVERELPARAMS], 1)
         return st.unpack("<l", get_msg.data[2:])[0]
 
     def set_move_absolute_parameters(self, absolute_position):
@@ -982,7 +978,7 @@ class Tdc(Tcube):
         """
 
         get_msg = self.send_request(MGMSG.MOT_REQ_MOVEABSPARAMS,
-                                    MGMSG.MOT_GET_MOVEABSPARAMS, 1)
+                                    [MGMSG.MOT_GET_MOVEABSPARAMS], 1)
         return st.unpack("<l", get_msg.data[2:])[0]
 
     def set_home_parameters(self, home_velocity):
@@ -1002,17 +998,17 @@ class Tdc(Tcube):
         """
 
         get_msg = self.send_request(MGMSG.MOT_REQ_HOMEPARAMS,
-                                    MGMSG.MOT_GET_HOMEPARAMS, 1)
+                                    [MGMSG.MOT_GET_HOMEPARAMS], 1)
         return st.unpack("<L", get_msg.data[6:10])[0]
 
     def move_home(self):
         """Start a home move sequence.
 
-        This call is blocking until device is homed.
+        This call is blocking until device is homed or move is stopped.
         """
 
         self.send_request(MGMSG.MOT_MOVE_HOME,
-                          MGMSG.MOT_MOVE_HOMED, 1)
+                          [MGMSG.MOT_MOVE_HOMED, MGMSG.MOT_MOVE_STOPPED], 1)
 
     def set_limit_switch_parameters(self, cw_hw_limit, ccw_hw_limit):
         """Set the limit switch parameters.
@@ -1057,7 +1053,7 @@ class Tdc(Tcube):
         """
 
         get_msg = self.send_request(MGMSG.MOT_REQ_LIMSWITCHPARAMS,
-                                    MGMSG.MOT_GET_LIMSWITCHPARAMS, 1)
+                                    [MGMSG.MOT_GET_LIMSWITCHPARAMS], 1)
         return st.unpack("<HH", get_msg.data[2:6])
 
     def move_relative_memory(self):
@@ -1069,7 +1065,8 @@ class Tdc(Tcube):
         command.
         """
 
-        self.send(Message(MGMSG.MOT_MOVE_RELATIVE, param1=1))
+        self.send_request(MGMSG.MOT_MOVE_RELATIVE,
+                          [MGMSG.MOT_MOVE_COMPLETED, MGMSG.MOT_MOVE_STOPPED], 1)
 
     def move_relative(self, relative_distance):
         """Start a relative move
@@ -1079,7 +1076,9 @@ class Tdc(Tcube):
         """
 
         payload = st.pack("<Hl", 1, relative_distance)
-        self.send(Message(MGMSG.MOT_MOVE_RELATIVE, data=payload))
+        self.send_request(MGMSG.MOT_MOVE_RELATIVE,
+                          [MGMSG.MOT_MOVE_COMPLETED, MGMSG.MOT_MOVE_STOPPED],
+                          data=payload)
 
     def move_absolute_memory(self):
         """Start an absolute move of distance in the controller's memory.
@@ -1090,7 +1089,9 @@ class Tdc(Tcube):
         command.
         """
 
-        self.send(Message(MGMSG.MOT_MOVE_ABSOLUTE, param1=1))
+        self.send_request(MGMSG.MOT_MOVE_ABSOLUTE,
+                          [MGMSG.MOT_MOVE_COMPLETED, MGMSG.MOT_MOVE_STOPPED],
+                          param1=1)
 
     def move_absolute(self, absolute_distance):
         """Start an absolute move.
@@ -1101,21 +1102,19 @@ class Tdc(Tcube):
         """
 
         payload = st.pack("<Hl", 1, absolute_distance)
-        self.send(Message(MGMSG.MOT_MOVE_ABSOLUTE, data=payload))
+        self.send_request(MGMSG.MOT_MOVE_ABSOLUTE,
+                          [MGMSG.MOT_MOVE_COMPLETED, MGMSG.MOT_MOVE_STOPPED],
+                          data=payload)
 
-    def move_jog(self, direction, async=False):
+    def move_jog(self, direction):
         """Start a job move.
 
         :param direction: The direction to jog. 1 is forward, 2 is backward.
-        :param async: If True then the command does not wait for the move to
-            finish. If False the command only returns when move is finished.
         """
 
-        if async:
         self.send_request(MGMSG.MOT_MOVE_JOG,
-                              MGMSG.MOT_MOVE_COMPLETED, 1, direction)
-        else:
-            self.send(Message(MGMSG.MOT_MOVE_JOG, param1=1, param2=direction))
+                          [MGMSG.MOT_MOVE_COMPLETED, MGMSG.MOT_MOVE_STOPPED],
+                          param1=1, param2=direction)
 
     def move_velocity(self, direction):
         """Start a move.
@@ -1134,7 +1133,7 @@ class Tdc(Tcube):
 
         self.send(Message(MGMSG.MOT_MOVE_VELOCITY, param1=1, param2=direction))
 
-    def move_stop(self, stop_mode, async=False):
+    def move_stop(self, stop_mode):
         """Stop any type of motor move.
 
         Stops any of those motor move: relative, absolute, homing or move at
@@ -1143,15 +1142,13 @@ class Tdc(Tcube):
         :param stop_mode: The stop mode defines either an immediate (abrupt)
             or profiled stop. Set this byte to 1 to stop immediately, or to 2
             to stop in a controlled (profiled) manner.
-        :param async: If set to False, this method will block until motor
-            is really stopped. Returns immediately if set to True.
         """
 
-        if async:
-            self.send(Message(MGMSG.MOT_MOVE_STOP, param1=1, param2=stop_mode))
-        else:
+        if self.is_moving():
             self.send_request(MGMSG.MOT_MOVE_STOP,
-                              MGMSG.MOT_MOVE_STOPPED, 1, stop_mode)
+                              [MGMSG.MOT_MOVE_STOPPED,
+                               MGMSG.MOT_MOVE_COMPLETED],
+                              1, stop_mode)
 
     def set_dc_pid_parameters(self, proportional, integral, differential,
                               integral_limit, filter_control=0x0F):
@@ -1185,7 +1182,7 @@ class Tdc(Tcube):
         """
 
         get_msg = self.send_request(MGMSG.MOT_REQ_DCPIDPARAMS,
-                                    MGMSG.MOT_GET_DCPIDPARAMS, 1)
+                                    [MGMSG.MOT_GET_DCPIDPARAMS], 1)
         return st.unpack("<LLLLH", get_msg.data[2:])
 
     def set_av_modes(self, mode_bits):
@@ -1212,7 +1209,7 @@ class Tdc(Tcube):
         """
 
         get_msg = self.send_request(MGMSG.MOT_REQ_AVMODES,
-                                    MGMSG.MOT_GET_AVMODES, 1)
+                                    [MGMSG.MOT_GET_AVMODES], 1)
         return st.unpack("<H", get_msg.data[2:])[0]
 
     def set_button_parameters(self, mode, position1, position2):
@@ -1250,7 +1247,7 @@ class Tdc(Tcube):
         """
 
         get_msg = self.send_request(MGMSG.MOT_REQ_BUTTONPARAMS,
-                                    MGMSG.MOT_GET_BUTTONPARAMS, 1)
+                                    [MGMSG.MOT_GET_BUTTONPARAMS], 1)
         return st.unpack("<Hll", get_msg.data[2:12])
 
     def set_eeprom_parameters(self, msg_id):
@@ -1274,7 +1271,7 @@ class Tdc(Tcube):
         """
 
         get_msg = self.send_request(MGMSG.MOT_REQ_DCSTATUSUPDATE,
-                                    MGMSG.MOT_GET_DCSTATUSUPDATE, 1)
+                                    [MGMSG.MOT_GET_DCSTATUSUPDATE], 1)
         pos, vel, _, stat = st.unpack("<LHHL", get_msg.data[2:])
         return pos, vel, stat
 
@@ -1286,7 +1283,7 @@ class Tdc(Tcube):
         """
 
         get_msg = self.send_request(MGMSG.MOT_REQ_STATUSBITS,
-                                    MGMSG.MOT_GET_STATUSBITS, 1)
+                                    [MGMSG.MOT_GET_STATUSBITS], 1)
         return st.unpack("<L", get_msg.data[2:])[0]
 
     def suspend_end_of_move_messages(self):
@@ -1320,6 +1317,9 @@ class TpzSim:
         self.voltage_limit = 150
         self.hub_analog_input = 1
 
+    def close(self):
+        pass
+
     def module_identify(self):
         pass
 
@@ -1392,17 +1392,19 @@ class TpzSim:
         return self.intensity
 
     def set_tpz_io_settings(self, voltage_limit, hub_analog_input):
-        self.voltage_limit = strip_unit(voltage_limit, "V")
-
-        if self.voltage_limit not in [75, 100, 150]:
+        if voltage_limit not in [75, 100, 150]:
             raise ValueError("voltage_limit must be 75 V, 100 V or 150 V")
+        self.voltage_limit = voltage_limit
         self.hub_analog_input = hub_analog_input
 
     def get_tpz_io_settings(self):
-        return self.voltage_limit*V, self.hub_analog_input
+        return self.voltage_limit, self.hub_analog_input
 
 
 class TdcSim:
+    def close(self):
+        pass
+
     def module_identify(self):
         pass
 

artiq/frontend/artiq_client.py

@@ -12,7 +12,6 @@ from prettytable import PrettyTable
 from artiq.protocols.pc_rpc import Client
 from artiq.protocols.sync_struct import Subscriber
 from artiq.protocols import pyon
-from artiq.tools import format_arguments
 
 
 def clear_screen():
@@ -32,16 +31,19 @@ def get_argparser():
     subparsers.required = True
 
     parser_add = subparsers.add_parser("submit", help="submit an experiment")
-    parser_add.add_argument("-t", "--timed", default=None, type=str,
-                            help="set a due date for the experiment")
     parser_add.add_argument("-p", "--pipeline", default="main", type=str,
                             help="pipeline to run the experiment in "
                                  "(default: %(default)s)")
     parser_add.add_argument("-P", "--priority", default=0, type=int,
                             help="priority (higher value means sooner "
                                  "scheduling, default: %(default)s)")
-    parser_add.add_argument("-e", "--experiment", default=None,
-                            help="experiment to run")
+    parser_add.add_argument("-t", "--timed", default=None, type=str,
+                            help="set a due date for the experiment")
+    parser_add.add_argument("-f", "--flush", default=False, action="store_true",
+                            help="flush the pipeline before preparing "
+                            "the experiment")
+    parser_add.add_argument("-c", "--class-name", default=None,
+                            help="name of the class to run")
     parser_add.add_argument("file",
                             help="file containing the experiment to run")
     parser_add.add_argument("arguments", nargs="*",
@@ -79,6 +81,9 @@ def get_argparser():
         "what",
         help="select object to show: schedule/devices/parameters")
 
+    parser_scan_repository = subparsers.add_parser(
+        "scan-repository", help="rescan repository")
+
     return parser
 
 
@@ -99,14 +104,15 @@ def _action_submit(remote, args):
 
     expid = {
         "file": args.file,
-        "experiment": args.experiment,
+        "class_name": args.class_name,
         "arguments": arguments,
     }
     if args.timed is None:
         due_date = None
     else:
         due_date = time.mktime(parse_date(args.timed).timetuple())
-    rid = remote.submit(args.pipeline, expid, args.priority, due_date)
+    rid = remote.submit(args.pipeline, expid,
+                        args.priority, due_date, args.flush)
     print("RID: {}".format(rid))
 
 
@@ -130,15 +136,19 @@ def _action_del_parameter(remote, args):
     remote.delete(args.name)
 
 
+def _action_scan_repository(remote, args):
+    remote.scan_async()
+
+
 def _show_schedule(schedule):
     clear_screen()
     if schedule:
         l = sorted(schedule.items(),
-                   key=lambda x: (x[1]["due_date"] or 0,
-                                  -x[1]["priority"],
+                   key=lambda x: (-x[1]["priority"],
+                                  x[1]["due_date"] or 0,
                                   x[0]))
         table = PrettyTable(["RID", "Pipeline", "    Status    ", "Prio",
-                             "Due date", "File", "Experiment", "Arguments"])
+                             "Due date", "File", "Class name"])
         for rid, v in l:
             row = [rid, v["pipeline"], v["status"], v["priority"]]
             if v["due_date"] is None:
@@ -147,11 +157,10 @@ def _show_schedule(schedule):
                 row.append(time.strftime("%m/%d %H:%M:%S",
                            time.localtime(v["due_date"])))
             row.append(v["expid"]["file"])
-            if v["expid"]["experiment"] is None:
+            if v["expid"]["class_name"] is None:
                 row.append("")
             else:
-                row.append(v["expid"]["experiment"])
-            row.append(format_arguments(v["expid"]["arguments"]))
+                row.append(v["expid"]["class_name"])
             table.add_row(row)
         print(table)
     else:
@@ -224,6 +233,7 @@ def main():
             "del_device": "master_ddb",
             "set_parameter": "master_pdb",
             "del_parameter": "master_pdb",
+            "scan_repository": "master_repository"
         }[action]
         remote = Client(args.server, port, target_name)
         try:

artiq/frontend/artiq_compile.py

@@ -4,7 +4,7 @@ import logging
 import argparse
 
 from artiq.protocols.file_db import FlatFileDB
-from artiq.master.worker_db import DBHub
+from artiq.master.worker_db import DeviceManager
 from artiq.tools import *
 
 
@@ -36,15 +36,14 @@ def main():
     args = get_argparser().parse_args()
     init_logger(args)
 
-    ddb = FlatFileDB(args.ddb)
+    dmgr = DeviceManager(FlatFileDB(args.ddb))
     pdb = FlatFileDB(args.pdb)
-    dbh = DBHub(ddb, pdb, rdb=None, read_only=True)
 
     try:
         module = file_import(args.file)
         exp = get_experiment(module, args.experiment)
         arguments = parse_arguments(args.arguments)
-        exp_inst = exp(dbh, **arguments)
+        exp_inst = exp(dmgr, pdb, **arguments)
 
         if (not hasattr(exp.run, "k_function_info")
                 or not exp.run.k_function_info):
@@ -56,7 +55,7 @@ def main():
                                           [exp_inst], {},
                                           with_attr_writeback=False)
     finally:
-        dbh.close_devices()
+        dmgr.close_devices()
 
     if rpc_map:
         raise ValueError("Experiment must not use RPC")

artiq/frontend/artiq_coreconfig.py

@@ -0,0 +1,72 @@
+#!/usr/bin/env python3
+
+import argparse
+
+from artiq.master.worker_db import DeviceManager
+from artiq.protocols.file_db import FlatFileDB
+
+
+def to_bytes(string):
+    return bytes(string, encoding="ascii")
+
+
+def get_argparser():
+    parser = argparse.ArgumentParser(description="ARTIQ core device config "
+                                                 "remote access")
+    subparsers = parser.add_subparsers(dest="action")
+    subparsers.required = True
+    p_read = subparsers.add_parser("read",
+                                   help="read key from core device config")
+    p_read.add_argument("key", type=to_bytes,
+                        help="key to be read from core device config")
+    p_write = subparsers.add_parser("write",
+                                    help="write key-value records to core "
+                                         "device config")
+    p_write.add_argument("-s", "--string", nargs=2, action="append",
+                         default=[], metavar=("KEY", "STRING"), type=to_bytes,
+                         help="key-value records to be written to core device "
+                              "config")
+    p_write.add_argument("-f", "--file", nargs=2, action="append",
+                         type=to_bytes, default=[],
+                         metavar=("KEY", "FILENAME"),
+                         help="key and file whose content to be written to "
+                              "core device config")
+    subparsers.add_parser("erase", help="erase core device config")
+    p_delete = subparsers.add_parser("delete",
+                                     help="delete key from core device config")
+    p_delete.add_argument("key", nargs=argparse.REMAINDER,
+                          default=[], type=to_bytes,
+                          help="key to be deleted from core device config")
+    parser.add_argument("--ddb", default="ddb.pyon",
+                        help="device database file")
+    return parser
+
+
+def main():
+    args = get_argparser().parse_args()
+    dmgr = DeviceManager(FlatFileDB(args.ddb))
+    try:
+        comm = dmgr.get("comm")
+
+        if args.action == "read":
+            value = comm.flash_storage_read(args.key)
+            if not value:
+                print("Key {} does not exist".format(args.key))
+            else:
+                print(value)
+        elif args.action == "erase":
+                comm.flash_storage_erase()
+        elif args.action == "delete":
+            for key in args.key:
+                comm.flash_storage_remove(key)
+        elif args.action == "write":
+            for key, value in args.string:
+                comm.flash_storage_write(key, value)
+            for key, filename in args.file:
+                with open(filename, "rb") as fi:
+                    comm.flash_storage_write(key, fi.read())
+    finally:
+        dmgr.close_devices()
+
+if __name__ == "__main__":
+    main()

artiq/frontend/artiq_flash.sh

@@ -1,13 +1,16 @@
 #!/bin/bash
 
+# exit on error
 set -e
+# print commands
+#set -x
 
 ARTIQ_PREFIX=$(python3 -c "import artiq; print(artiq.__path__[0])")
 
 # Default is kc705
 BOARD=kc705
 
-while getopts "bBrht:d:" opt
+while getopts "bBrht:d:f:" opt
 do
 	case $opt in
 		b)
@@ -19,6 +22,15 @@ do
 		r)
 			FLASH_RUNTIME=1
 			;;
+		f)
+			if [ -f $OPTARG ]
+			then
+				FILENAME=$OPTARG
+			else
+				echo "You specified a non-existing file to flash: $OPTARG"
+				exit 1
+			fi
+			;;
 		t)
 			if [ "$OPTARG" == "kc705" ]
 			then
@@ -52,6 +64,7 @@ do
 			echo "-r  Flash ARTIQ runtime"
 			echo "-h  Show this help message"
 			echo "-t  Target (kc705, pipistrello, default is: kc705)"
+			echo "-f  Flash storage image generated with artiq_mkfs"
 			echo "-d  Directory containing the binaries to be flashed"
 			exit 1
 			;;
@@ -95,22 +108,24 @@ then
 	PROXY=bscan_spi_kc705.bit
 	BIOS_ADDR=0xaf0000
 	RUNTIME_ADDR=0xb00000
+	FS_ADDR=0xb40000
 	if [ -z "$BIN_PREFIX" ]; then BIN_PREFIX=$ARTIQ_PREFIX/binaries/kc705; fi
 	search_for_proxy $PROXY
 elif [ "$BOARD" == "pipistrello" ]
 then
 	UDEV_RULES=99-papilio.rules
-	BITSTREAM=artiq_pipistrello-nist_qc1-pipistrello.bin
+	BITSTREAM=artiq_pipistrello-nist_qc1-pipistrello.bit
 	CABLE=papilio
 	PROXY=bscan_spi_lx45_csg324.bit
 	BIOS_ADDR=0x170000
 	RUNTIME_ADDR=0x180000
+	FS_ADDR=0x1c0000
 	if [ -z "$BIN_PREFIX" ]; then BIN_PREFIX=$ARTIQ_PREFIX/binaries/pipistrello; fi
 	search_for_proxy $PROXY
 fi
 
 # Check if neither of -b|-B|-r have been used
-if [ -z "$FLASH_RUNTIME" -a -z "$FLASH_BIOS" -a -z "$FLASH_BITSTREAM" ]
+if [ -z "$FLASH_RUNTIME" -a -z "$FLASH_BIOS" -a -z "$FLASH_BITSTREAM" -a -z "$FILENAME" ]
 then
 	FLASH_RUNTIME=1
 	FLASH_BIOS=1
@@ -132,10 +147,16 @@ then
 fi
 set -e
 
+if [ ! -z "$FILENAME" ]
+then
+	echo "Flashing file $FILENAME at address $FS_ADDR"
+	xc3sprog -v -c $CABLE -I$PROXY_PATH/$PROXY $FILENAME:w:$FS_ADDR:BIN
+fi
+
 if [ "${FLASH_BITSTREAM}" == "1" ]
 then
 	echo "Flashing FPGA bitstream..."
-	xc3sprog -v -c $CABLE -I$PROXY_PATH/$PROXY $BIN_PREFIX/$BITSTREAM:w:0x0:BIN
+	xc3sprog -v -c $CABLE -I$PROXY_PATH/$PROXY $BIN_PREFIX/$BITSTREAM:w:0x0:BIT
 fi
 
 if [ "${FLASH_BIOS}" == "1" ]

artiq/frontend/artiq_gui.py

@@ -3,6 +3,7 @@
 import argparse
 import asyncio
 import atexit
+import os
 
 # Quamash must be imported first so that pyqtgraph picks up the Qt binding
 # it has chosen.
@@ -12,9 +13,15 @@ from pyqtgraph import dockarea
 from artiq.protocols.file_db import FlatFileDB
 from artiq.protocols.pc_rpc import AsyncioClient
 from artiq.gui.explorer import ExplorerDock
+from artiq.gui.moninj import MonInj
+from artiq.gui.results import ResultsDock
 from artiq.gui.parameters import ParametersDock
-from artiq.gui.log import LogDock
 from artiq.gui.schedule import ScheduleDock
+from artiq.gui.log import LogDock
+
+
+data_dir = os.path.join(os.path.abspath(os.path.dirname(__file__)),
+                        "..", "gui")
 
 
 def get_argparser():
@@ -34,6 +41,17 @@ def get_argparser():
     return parser
 
 
+class _MainWindow(QtGui.QMainWindow):
+    def __init__(self, app):
+        QtGui.QMainWindow.__init__(self)
+        self.setWindowIcon(QtGui.QIcon(os.path.join(data_dir, "icon.png")))
+        self.resize(1400, 800)
+        self.setWindowTitle("ARTIQ")
+        self.exit_request = asyncio.Event()
+
+    def closeEvent(self, *args):
+        self.exit_request.set()
+
 def main():
     args = get_argparser().parse_args()
 
@@ -49,38 +67,53 @@ def main():
         args.server, args.port_control, "master_schedule"))
     atexit.register(lambda: schedule_ctl.close_rpc())
 
-    win = QtGui.QMainWindow()
+    win = _MainWindow(app)
     area = dockarea.DockArea()
     win.setCentralWidget(area)
     status_bar = QtGui.QStatusBar()
     status_bar.showMessage("Connected to {}".format(args.server))
     win.setStatusBar(status_bar)
-    win.resize(1400, 800)
-    win.setWindowTitle("ARTIQ")
 
-    d_explorer = ExplorerDock(status_bar, schedule_ctl)
-    area.addDock(d_explorer, "top")
+    d_explorer = ExplorerDock(win, status_bar, schedule_ctl)
     loop.run_until_complete(d_explorer.sub_connect(
         args.server, args.port_notify))
     atexit.register(lambda: loop.run_until_complete(d_explorer.sub_close()))
 
+    d_results = ResultsDock(win, area)
+    loop.run_until_complete(d_results.sub_connect(
+        args.server, args.port_notify))
+    atexit.register(lambda: loop.run_until_complete(d_results.sub_close()))
+
+    d_ttl_dds = MonInj()
+    loop.run_until_complete(d_ttl_dds.start(args.server, args.port_notify))
+    atexit.register(lambda: loop.run_until_complete(d_ttl_dds.stop()))
+
     d_params = ParametersDock()
-    area.addDock(d_params, "right", d_explorer)
     loop.run_until_complete(d_params.sub_connect(
         args.server, args.port_notify))
     atexit.register(lambda: loop.run_until_complete(d_params.sub_close()))
 
-    d_log = LogDock()
-    area.addDock(d_log, "bottom")
+    area.addDock(d_ttl_dds.dds_dock, "top")
+    area.addDock(d_ttl_dds.ttl_dock, "above", d_ttl_dds.dds_dock)
+    area.addDock(d_results, "above", d_ttl_dds.ttl_dock)
+    area.addDock(d_params, "above", d_results)
+    area.addDock(d_explorer, "above", d_params)
 
     d_schedule = ScheduleDock(schedule_ctl)
-    area.addDock(d_schedule, "above", d_log)
     loop.run_until_complete(d_schedule.sub_connect(
         args.server, args.port_notify))
     atexit.register(lambda: loop.run_until_complete(d_schedule.sub_close()))
 
+    d_log = LogDock()
+    loop.run_until_complete(d_log.sub_connect(
+        args.server, args.port_notify))
+    atexit.register(lambda: loop.run_until_complete(d_log.sub_close()))
+
+    area.addDock(d_log, "bottom")
+    area.addDock(d_schedule, "above", d_log)
+
     win.show()
-    loop.run_forever()
+    loop.run_until_complete(win.exit_request.wait())
 
 if __name__ == "__main__":
     main()

artiq/frontend/artiq_master.py

@@ -6,10 +6,10 @@ import atexit
 import os
 
 from artiq.protocols.pc_rpc import Server
-from artiq.protocols.sync_struct import Publisher
-from artiq.protocols.file_db import FlatFileDB, SimpleHistory
+from artiq.protocols.sync_struct import Notifier, Publisher, process_mod
+from artiq.protocols.file_db import FlatFileDB
 from artiq.master.scheduler import Scheduler
-from artiq.master.results import RTResults, get_last_rid
+from artiq.master.worker_db import get_last_rid
 from artiq.master.repository import Repository
 from artiq.tools import verbosity_args, init_logger
 
@@ -30,17 +30,21 @@ def get_argparser():
     return parser
 
 
+class Log:
+    def __init__(self, depth):
+        self.depth = depth
+        self.data = Notifier([])
+
+    def log(self, rid, message):
+        if len(self.data.read) >= self.depth:
+            del self.data[0]
+        self.data.append((rid, message))
+    log.worker_pass_rid = True
+
+
 def main():
     args = get_argparser().parse_args()
-
     init_logger(args)
-    ddb = FlatFileDB("ddb.pyon")
-    pdb = FlatFileDB("pdb.pyon")
-    simplephist = SimpleHistory(30)
-    pdb.hooks.append(simplephist)
-    rtr = RTResults()
-    repository = Repository()
-
     if os.name == "nt":
         loop = asyncio.ProactorEventLoop()
         asyncio.set_event_loop(loop)
@@ -48,23 +52,31 @@ def main():
         loop = asyncio.get_event_loop()
     atexit.register(lambda: loop.close())
 
+    ddb = FlatFileDB("ddb.pyon")
+    pdb = FlatFileDB("pdb.pyon")
+    rtr = Notifier(dict())
+    log = Log(1000)
+
     worker_handlers = {
-        "req_device": ddb.request,
-        "req_parameter": pdb.request,
+        "get_device": ddb.get,
+        "get_parameter": pdb.get,
         "set_parameter": pdb.set,
-        "init_rt_results": rtr.init,
-        "update_rt_results": rtr.update,
+        "update_rt_results": lambda mod: process_mod(rtr, mod),
+        "log": log.log
     }
     scheduler = Scheduler(get_last_rid() + 1, worker_handlers)
     worker_handlers["scheduler_submit"] = scheduler.submit
     scheduler.start()
     atexit.register(lambda: loop.run_until_complete(scheduler.stop()))
 
+    repository = Repository(log.log)
+    repository.scan_async()
+
     server_control = Server({
         "master_ddb": ddb,
         "master_pdb": pdb,
         "master_schedule": scheduler,
-        "master_repository": repository,
+        "master_repository": repository
     })
     loop.run_until_complete(server_control.start(
         args.bind, args.port_control))
@@ -74,9 +86,9 @@ def main():
         "schedule": scheduler.notifier,
         "devices": ddb.data,
         "parameters": pdb.data,
-        "parameters_simplehist": simplephist.history,
-        "rt_results": rtr.groups,
-        "explist": repository.explist
+        "rt_results": rtr,
+        "explist": repository.explist,
+        "log": log.data
     })
     loop.run_until_complete(server_notify.start(
         args.bind, args.port_notify))

artiq/frontend/artiq_mkfs.py

@@ -20,16 +20,13 @@ def get_argparser():
 
 
 def write_record(f, key, value):
+    key_size = len(key) + 1
+    value_size = len(value)
+    record_size = key_size + value_size + 4
+    f.write(struct.pack(">l", record_size))
     f.write(key.encode())
     f.write(b"\x00")
-    key_size = len(key) + 1
-    if key_size % 4:
-        f.write(bytes(4 - (key_size % 4)))
-    f.write(struct.pack(">l", len(value)))
     f.write(value)
-    value_size = len(value)
-    if value_size % 4:
-        f.write(bytes(4 - (value_size % 4)))
 
 
 def write_end_marker(f):

artiq/frontend/artiq_rpctool.py

@@ -36,8 +36,11 @@ def list_targets(target_names, id_parameters):
 
 
 def list_methods(remote):
-    methods = remote.get_rpc_method_list()
-    for name, (argspec, docstring) in sorted(methods.items()):
+    doc = remote.get_rpc_method_list()
+    if doc["docstring"] is not None:
+        print(doc["docstring"])
+        print()
+    for name, (argspec, docstring) in sorted(doc["methods"].items()):
         args = ""
         for arg in argspec["args"]:
             args += arg

artiq/frontend/artiq_run.py

@@ -9,20 +9,19 @@ import logging
 
 import h5py
 
-from artiq.language.db import *
-from artiq.language.experiment import Experiment
+from artiq.language.environment import EnvExperiment
 from artiq.protocols.file_db import FlatFileDB
-from artiq.master.worker_db import DBHub, ResultDB
+from artiq.master.worker_db import DeviceManager, ResultDB
 from artiq.tools import *
 
 
 logger = logging.getLogger(__name__)
 
 
-class ELFRunner(Experiment, AutoDB):
-    class DBKeys:
-        core = Device()
-        file = Argument()
+class ELFRunner(EnvExperiment):
+    def build(self):
+        self.attr_device("core")
+        self.attr_argument("file")
 
     def run(self):
         with open(self.file, "rb") as f:
@@ -36,42 +35,21 @@ class SimpleParamLogger:
         logger.info("Parameter change: {} = {}".format(name, value))
 
 
-class DummyWatchdog:
-    def __init__(self, t):
-        pass
-
-    def __enter__(self):
-        pass
-
-    def __exit__(self, type, value, traceback):
-        pass
-
-
 class DummyScheduler:
     def __init__(self):
         self.next_rid = 0
-        self.next_trid = 0
+        self.pipeline_name = "main"
+        self.priority = 0
+        self.expid = None
 
-    def run_queued(self, run_params):
+    def submit(self, pipeline_name, expid, priority, due_date, flush):
         rid = self.next_rid
         self.next_rid += 1
-        logger.info("Queuing: %s, RID=%s", run_params, rid)
+        logger.info("Submitting: %s, RID=%s", expid, rid)
         return rid
 
-    def cancel_queued(self, rid):
-        logger.info("Cancelling RID %s", rid)
-
-    def run_timed(self, run_params, next_run):
-        trid = self.next_trid
-        self.next_trid += 1
-        next_run_s = time.strftime("%m/%d %H:%M:%S", time.localtime(next_run))
-        logger.info("Timing: %s at %s, TRID=%s", run_params, next_run_s, trid)
-        return trid
-
-    def cancel_timed(self, trid):
-        logger.info("Cancelling TRID %s", trid)
-
-    watchdog = DummyWatchdog
+    def delete(self, rid):
+        logger.info("Deleting RID %s", rid)
 
 
 def get_argparser(with_file=True):
@@ -98,7 +76,7 @@ def get_argparser(with_file=True):
     return parser
 
 
-def _build_experiment(dbh, args):
+def _build_experiment(dmgr, pdb, rdb, args):
     if hasattr(args, "file"):
         if args.file.endswith(".elf"):
             if args.arguments:
@@ -106,7 +84,7 @@ def _build_experiment(dbh, args):
             if args.experiment:
                 raise ValueError("experiment-by-name not supported "
                                  "for ELF kernels")
-            return ELFRunner(dbh, file=args.file)
+            return ELFRunner(dmgr, pdb, rdb, file=args.file)
         else:
             module = file_import(args.file)
         file = args.file
@@ -115,37 +93,38 @@ def _build_experiment(dbh, args):
         file = getattr(module, "__file__")
     exp = get_experiment(module, args.experiment)
     arguments = parse_arguments(args.arguments)
-    return exp(dbh,
-               scheduler=DummyScheduler(),
-               run_params=dict(file=file,
-                               experiment=args.experiment,
-                               arguments=arguments),
-               **arguments)
+    expid = {
+        "file": file,
+        "experiment": args.experiment,
+        "arguments": arguments
+    }
+    dmgr.virtual_devices["scheduler"].expid = expid
+    return exp(dmgr, pdb, rdb, **arguments)
 
 
 def run(with_file=False):
     args = get_argparser(with_file).parse_args()
     init_logger(args)
 
-    ddb = FlatFileDB(args.ddb)
+    dmgr = DeviceManager(FlatFileDB(args.ddb),
+                         virtual_devices={"scheduler": DummyScheduler()})
     pdb = FlatFileDB(args.pdb)
     pdb.hooks.append(SimpleParamLogger())
-    rdb = ResultDB(lambda description: None, lambda mod: None)
-    dbh = DBHub(ddb, pdb, rdb)
+    rdb = ResultDB()
 
     try:
-        exp_inst = _build_experiment(dbh, args)
-        rdb.build()
+        exp_inst = _build_experiment(dmgr, pdb, rdb, args)
+        exp_inst.prepare()
         exp_inst.run()
         exp_inst.analyze()
     finally:
-        dbh.close_devices()
+        dmgr.close_devices()
 
     if args.hdf5 is not None:
         with h5py.File(args.hdf5, "w") as f:
             rdb.write_hdf5(f)
-    elif rdb.data.read or rdb.realtime_data.read:
-        r = chain(rdb.realtime_data.read.items(), rdb.data.read.items())
+    elif rdb.rt.read or rdb.nrt:
+        r = chain(rdb.rt.read.items(), rdb.nrt.items())
         for k, v in sorted(r, key=itemgetter(0)):
             print("{}: {}".format(k, v))
 

artiq/frontend/lda_controller.py

@@ -16,7 +16,13 @@ def get_argparser():
     simple_network_args(parser, 3253)
     parser.add_argument("-d", "--device", default=None,
                         help="USB serial number of the device. "
-                             " Omit for simulation mode.")
+                             "The serial number is written on a sticker under "
+                             "the device, you should write for example "
+                             "-d \"SN:03461\". You must prepend enough 0s for "
+                             "it to be 5 digits. If omitted, the first "
+                             "available device will be used.")
+    parser.add_argument("--simulation", action="store_true",
+                        help="Put the driver in simulation mode.")
     verbosity_args(parser)
     return parser
 
@@ -24,7 +30,7 @@ def get_argparser():
 def main():
     args = get_argparser().parse_args()
     init_logger(args)
-    if args.device is None:
+    if args.simulation:
         lda = Ldasim()
     else:
         lda = Lda(args.device, args.product)

artiq/frontend/novatech409b_controller.py

@@ -4,6 +4,7 @@
 
 import argparse
 import logging
+import sys
 
 from artiq.devices.novatech409b.driver import Novatech409B
 from artiq.protocols.pc_rpc import simple_server_loop
@@ -19,7 +20,10 @@ def get_argparser():
     simple_network_args(parser, 3254)
     parser.add_argument(
         "-d", "--device", default=None,
-        help="serial port. Omit for simulation mode.")
+        help="serial port.")
+    parser.add_argument(
+        "--simulation", action="store_true",
+        help="Put the driver in simulation mode, even if --device is used.")
     verbosity_args(parser)
     return parser
 
@@ -28,7 +32,12 @@ def main():
     args = get_argparser().parse_args()
     init_logger(args)
 
-    dev = Novatech409B(args.device)
+    if not args.simulation and args.device is None:
+        print("You need to specify either --simulation or -d/--device "
+              "argument. Use --help for more information.")
+        sys.exit(1)
+
+    dev = Novatech409B(args.device if not args.simulation else None)
     try:
         simple_server_loop(
             {"novatech409b": dev}, args.bind, args.port)

artiq/frontend/pdq2_controller.py

@@ -1,6 +1,7 @@
 #!/usr/bin/env python3
 
 import argparse
+import sys
 
 from artiq.devices.pdq2.driver import Pdq2
 from artiq.protocols.pc_rpc import simple_server_loop
@@ -12,7 +13,10 @@ def get_argparser():
     simple_network_args(parser, 3252)
     parser.add_argument(
         "-d", "--device", default=None,
-        help="serial port. Omit for simulation mode.")
+        help="serial port.")
+    parser.add_argument(
+        "--simulation", action="store_true",
+        help="Put the driver in simulation mode, even if --device is used.")
     parser.add_argument(
         "--dump", default="pdq2_dump.bin",
         help="file to dump pdq2 data into, for later simulation")
@@ -24,7 +28,13 @@ def main():
     args = get_argparser().parse_args()
     init_logger(args)
     port = None
-    if args.device is None:
+
+    if not args.simulation and args.device is None:
+        print("You need to specify either --simulation or -d/--device "
+              "argument. Use --help for more information.")
+        sys.exit(1)
+
+    if args.simulation:
         port = open(args.dump, "wb")
     dev = Pdq2(url=args.device, dev=port)
     try:

artiq/frontend/pxi6733_controller.py

@@ -2,6 +2,7 @@
 # Yann Sionneau <ys@m-labs.hk>, 2015
 
 import argparse
+import sys
 
 from artiq.protocols.pc_rpc import simple_server_loop
 from artiq.devices.pxi6733.driver import DAQmx, DAQmxSim
@@ -11,13 +12,13 @@ from artiq.tools import verbosity_args, init_logger, simple_network_args
 def get_argparser():
     parser = argparse.ArgumentParser(description="NI PXI 6733 controller")
     simple_network_args(parser, 3256)
-    parser.add_argument("-d", "--device", default=None,
-                        help="Device name (e.g. Dev1)."
-                        " Omit for simulation mode.")
+    parser.add_argument("-C", "--channels", default=None,
+                        help="List of channels (e.g. Dev1/ao0, Dev1/ao1:3).")
     parser.add_argument("-c", "--clock", default="PFI5",
                         help="Input clock pin name (default: PFI5)")
-    parser.add_argument("-a", "--analog-output", default="ao0",
-                        help="Analog output pin name (default: ao0)")
+    parser.add_argument("--simulation", action='store_true',
+                        help="Put the driver in simulation mode, even if "
+                             "--channels is used.")
     verbosity_args(parser)
     return parser
 
@@ -26,12 +27,16 @@ def main():
     args = get_argparser().parse_args()
     init_logger(args)
 
-    if args.device is None:
+    if not args.simulation and args.channels is None:
+        print("You need to specify either --simulation or -C/--channels "
+              "argument. Use --help for more information.")
+        sys.exit(1)
+
+    if args.simulation:
         daq = DAQmxSim()
     else:
-        daq = DAQmx(bytes(args.device, "ascii"),
-                    bytes(args.analog_output, "ascii"),
-                    bytes(args.clock, "ascii"))
+        daq = DAQmx(args.channels,
+                    args.clock)
 
     try:
         simple_server_loop({"pxi6733": daq},

artiq/frontend/thorlabs_tcube_controller.py

@@ -1,6 +1,7 @@
 #!/usr/bin/env python3
 
 import argparse
+import sys
 
 from artiq.devices.thorlabs_tcube.driver import Tdc, Tpz, TdcSim, TpzSim
 from artiq.protocols.pc_rpc import simple_server_loop
@@ -13,7 +14,11 @@ def get_argparser():
                         help="type of the Thorlabs T-Cube device to control",
                         choices=["TDC001", "TPZ001"])
     parser.add_argument("-d", "--device", default=None,
-                        help="serial port. Omit for simulation mode.")
+                        help="serial device. See documentation for how to "
+                             "specify a USB Serial Number.")
+    parser.add_argument("--simulation", action="store_true",
+                        help="Put the driver in simulation mode, even if "
+                             "--device is used.")
     simple_network_args(parser, 3255)
     verbosity_args(parser)
     return parser
@@ -23,7 +28,12 @@ def main():
     args = get_argparser().parse_args()
     init_logger(args)
 
-    if args.device is None:
+    if not args.simulation and args.device is None:
+        print("You need to specify either --simulation or -d/--device "
+              "argument. Use --help for more information.")
+        sys.exit(1)
+
+    if args.simulation:
         if args.product == "TDC001":
             dev = TdcSim()
         elif args.product == "TPZ001":

artiq/gateware/ad9xxx.py

@@ -6,15 +6,14 @@ from migen.bus.transactions import *
 from migen.sim.generic import run_simulation
 
 
-class AD9858(Module):
-    """Wishbone interface to the AD9858 DDS chip.
+class AD9xxx(Module):
+    """Wishbone interface to the AD9858 and AD9914 DDS chips.
 
-    Addresses 0-63 map the AD9858 registers.
-    Data is zero-padded.
+    Addresses 0-2**flen(pads.a)-1 map the AD9xxx registers.
 
-    Write to address 64 to pulse the FUD signal.
-    Address 65 is a GPIO register that controls the sel, p and reset signals.
-    sel is mapped to the lower bits, followed by p and reset.
+    Write to address 2**flen(pads.a) to pulse the FUD signal.
+    Address 2**flen(pads.a)+1 is a GPIO register that controls the
+    sel and reset signals. rst is mapped to bit 0, followed by sel.
 
     Write timing:
     Address is set one cycle before assertion of we_n.
@@ -28,6 +27,7 @@ class AD9858(Module):
     Design:
     All IO pads are registered.
 
+    With QC1 adapter:
     LVDS driver/receiver propagation delays are 3.6+4.5 ns max
     LVDS state transition delays are 20, 15 ns max
     Schmitt trigger delays are 6.4ns max
@@ -38,15 +38,15 @@ class AD9858(Module):
                  read_wait_cycles=10, hiz_wait_cycles=3,
                  bus=None):
         if bus is None:
-            bus = wishbone.Interface()
+            bus = wishbone.Interface(data_width=flen(pads.d))
         self.bus = bus
 
         # # #
 
-        dts = TSTriple(8)
+        dts = TSTriple(flen(pads.d))
         self.specials += dts.get_tristate(pads.d)
         hold_address = Signal()
-        dr = Signal(8)
+        dr = Signal(flen(pads.d))
         rx = Signal()
         self.sync += [
             If(~hold_address, pads.a.eq(bus.adr)),
@@ -55,13 +55,14 @@ class AD9858(Module):
             dts.oe.eq(~rx)
         ]
 
-        gpio = Signal(flen(pads.sel) + flen(pads.p) + 1)
+        gpio = Signal(flen(pads.sel) + 1)
         gpio_load = Signal()
         self.sync += If(gpio_load, gpio.eq(bus.dat_w))
-        self.comb += [
-            Cat(pads.sel, pads.p).eq(gpio),
-            pads.rst_n.eq(~gpio[-1]),
-        ]
+        if hasattr(pads, "rst"):
+            self.comb += pads.rst.eq(gpio[0])
+        else:
+            self.comb += pads.rst_n.eq(~gpio[0])
+        self.comb += pads.sel.eq(gpio[1:])
 
         bus_r_gpio = Signal()
         self.comb += If(bus_r_gpio,
@@ -71,6 +72,9 @@ class AD9858(Module):
             )
 
         fud = Signal()
+        if hasattr(pads, "fud"):
+            self.sync += pads.fud.eq(fud)
+        else:
             self.sync += pads.fud_n.eq(~fud)
 
         pads.wr_n.reset = 1
@@ -87,7 +91,7 @@ class AD9858(Module):
 
         fsm.act("IDLE",
             If(bus.cyc & bus.stb,
-                If(bus.adr[6],
+                If(bus.adr[flen(pads.a)],
                     If(bus.adr[0],
                         NextState("GPIO")
                     ).Else(
@@ -168,7 +172,6 @@ class _TestPads:
         self.a = Signal(6)
         self.d = Signal(8)
         self.sel = Signal(5)
-        self.p = Signal(2)
         self.fud_n = Signal()
         self.wr_n = Signal()
         self.rd_n = Signal()
@@ -178,11 +181,11 @@ class _TestPads:
 class _TB(Module):
     def __init__(self):
         pads = _TestPads()
-        self.submodules.dut = AD9858(pads, drive_fud=True)
+        self.submodules.dut = AD9xxx(pads, drive_fud=True)
         self.submodules.initiator = wishbone.Initiator(_test_gen())
         self.submodules.interconnect = wishbone.InterconnectPointToPoint(
             self.initiator.bus, self.dut.bus)
 
 
 if __name__ == "__main__":
-    run_simulation(_TB(), vcd_name="ad9858.vcd")
+    run_simulation(_TB(), vcd_name="ad9xxx.vcd")

artiq/gateware/amp/kernel_cpu.py

@@ -3,12 +3,11 @@ from migen.bank.description import *
 from migen.bus import wishbone
 
 from misoclib.cpu import mor1kx
-from misoclib.mem.sdram.frontend.wishbone2lasmi import WB2LASMI
 from misoclib.soc import mem_decoder
 
 
 class KernelCPU(Module):
-    def __init__(self, platform, lasmim,
+    def __init__(self, platform,
                  exec_address=0x40400000,
                  main_mem_origin=0x40000000,
                  l2_size=8192):
@@ -29,16 +28,8 @@ class KernelCPU(Module):
             "sys_kernel")
 
         # DRAM access
-        # XXX Vivado 2014.X workaround
-        from mibuild.xilinx.vivado import XilinxVivadoToolchain
-        if isinstance(platform.toolchain, XilinxVivadoToolchain):
-            from migen.fhdl.simplify import FullMemoryWE
-            self.submodules.wishbone2lasmi = FullMemoryWE()(
-                WB2LASMI(l2_size//4, lasmim))
-        else:
-            self.submodules.wishbone2lasmi = WB2LASMI(l2_size//4, lasmim)
-        self.add_wb_slave(mem_decoder(main_mem_origin),
-                          self.wishbone2lasmi.wishbone)
+        self.wb_sdram = wishbone.Interface()
+        self.add_wb_slave(mem_decoder(main_mem_origin), self.wb_sdram)
 
     def get_csrs(self):
         return [self._reset]

artiq/gateware/nist_qc1.py

@@ -4,10 +4,22 @@ from mibuild.generic_platform import *
 papilio_adapter_io = [
     ("ext_led", 0, Pins("B:7"), IOStandard("LVTTL")),
 
+    # to feed the 125 MHz clock (preferrably from DDS SYNC_CLK)
+    # to the FPGA, use the xtrig pair.
+    #
+    # on papiliopro-adapter, xtrig (C:12) is connected to a GCLK
+    #
+    # on pipistrello, C:15 is the only GCLK in proximity, used as a button
+    # input, BTN2/PMT2 in papiliopro-adapter
+    # either improve the DDS box to feed 125MHz into the PMT2 pair, or:
+    #
+    # * disconnect C:15 from its periphery on the adapter board
+    # * bridge C:15 to the xtrig output of the transciever
+    # * optionally, disconnect C:12 from its periphery
+    ("xtrig", 0, Pins("C:12"), IOStandard("LVTTL")),
     ("pmt", 0, Pins("C:13"), IOStandard("LVTTL")),
     ("pmt", 1, Pins("C:14"), IOStandard("LVTTL")),
-    ("xtrig", 0, Pins("C:12"), IOStandard("LVTTL")),
-    ("dds_clock", 0, Pins("C:15"), IOStandard("LVTTL")),  # PMT2
+    ("pmt", 2, Pins("C:15"), IOStandard("LVTTL")),  # rarely equipped
 
     ("ttl", 0, Pins("C:11"), IOStandard("LVTTL")),
     ("ttl", 1, Pins("C:10"), IOStandard("LVTTL")),

artiq/gateware/nist_qc2.py

@@ -0,0 +1,78 @@
+from mibuild.generic_platform import *
+
+
+fmc_adapter_io = [
+    ("ttl", 0, Pins("LPC:LA00_CC_P"), IOStandard("LVTTL")),
+    ("ttl", 1, Pins("LPC:LA02_P"), IOStandard("LVTTL")),
+    ("ttl", 2, Pins("LPC:LA00_CC_N"), IOStandard("LVTTL")),
+    ("ttl", 3, Pins("LPC:LA02_N"), IOStandard("LVTTL")),
+    ("ttl", 4, Pins("LPC:LA01_CC_P"), IOStandard("LVTTL")),
+    ("ttl", 5, Pins("LPC:LA01_CC_N"), IOStandard("LVTTL")),
+    ("ttl", 6, Pins("LPC:LA06_P"), IOStandard("LVTTL")),
+    ("ttl", 7, Pins("LPC:LA06_N"), IOStandard("LVTTL")),
+    ("ttl", 8, Pins("LPC:LA05_P"), IOStandard("LVTTL")),
+    ("ttl", 9, Pins("LPC:LA05_N"), IOStandard("LVTTL")),
+    ("ttl", 10, Pins("LPC:LA10_P"), IOStandard("LVTTL")),
+    ("ttl", 11, Pins("LPC:LA09_P"), IOStandard("LVTTL")),
+    ("ttl", 12, Pins("LPC:LA10_N"), IOStandard("LVTTL")),
+    ("ttl", 13, Pins("LPC:LA09_N"), IOStandard("LVTTL")),
+    ("ttl", 14, Pins("LPC:LA13_P"), IOStandard("LVTTL")),
+    ("ttl", 15, Pins("LPC:LA14_P"), IOStandard("LVTTL")),
+
+    ("dds", 0,
+        Subsignal("a", Pins("LPC:LA22_N LPC:LA21_P LPC:LA22_P LPC:LA19_N "
+                            "LPC:LA20_N LPC:LA19_P LPC:LA20_P")),
+        Subsignal("d", Pins("LPC:LA15_N LPC:LA16_N LPC:LA15_P LPC:LA16_P "
+                            "LPC:LA11_N LPC:LA12_N LPC:LA11_P LPC:LA12_P "
+                            "LPC:LA07_N LPC:LA08_N LPC:LA07_P LPC:LA08_P "
+                            "LPC:LA04_N LPC:LA03_N LPC:LA04_P LPC:LA03_P")),
+        Subsignal("sel", Pins("LPC:LA24_N LPC:LA29_P LPC:LA28_P LPC:LA29_N "
+                              "LPC:LA28_N LPC:LA31_P LPC:LA30_P LPC:LA31_N "
+                              "LPC:LA30_N LPC:LA33_P LPC:LA33_N")),
+        Subsignal("fud", Pins("LPC:LA21_N")),
+        Subsignal("wr_n", Pins("LPC:LA24_P")),
+        Subsignal("rd_n", Pins("LPC:LA25_N")),
+        Subsignal("rst", Pins("LPC:LA25_P")),
+        IOStandard("LVTTL")),
+
+    ("i2c", 0,
+        Subsignal("scl", Pins("LPC:IIC_SLC")),
+        Subsignal("sda", Pins("LPC:IIC_SDA")),
+        IOStandard("LVCMOS25")),
+
+    ("clk_m2c", 0,
+        Subsignal("p", Pins("LPC:CLK0_M2C_P")),
+        Subsignal("n", Pins("LPC:CLK0_M2C_N")),
+        IOStandard("LVDS")),
+
+    ("clk_m2c", 1,
+        Subsignal("p", Pins("LPC:CLK1_M2C_P")),
+        Subsignal("n", Pins("LPC:CLK1_M2C_N")),
+        IOStandard("LVDS")),
+
+    ("la32", 0,
+        Subsignal("p", Pins("LPC:LA32_P")),
+        Subsignal("n", Pins("LPC:LA32_N")),
+        IOStandard("LVDS")),
+
+    ("spi", 0,
+        Subsignal("clk", Pins("LPC:LA13_N")),
+        Subsignal("ce", Pins("LPC:LA14_N")),
+        Subsignal("mosi", Pins("LPC:LA17_CC_P")),
+        Subsignal("miso", Pins("LPC:LA17_CC_N")),
+        IOStandard("LVTTL")),
+
+    ("spi", 1,
+        Subsignal("clk", Pins("LPC:LA18_CC_P")),
+        Subsignal("ce", Pins("LPC:LA18_CC_N")),
+        Subsignal("mosi", Pins("LPC:LA23_P")),
+        Subsignal("miso", Pins("LPC:LA23_N")),
+        IOStandard("LVTTL")),
+
+    ("spi", 2,
+        Subsignal("clk", Pins("LPC:LA27_P")),
+        Subsignal("ce", Pins("LPC:LA26_P")),
+        Subsignal("mosi", Pins("LPC:LA27_N")),
+        Subsignal("miso", Pins("LPC:LA26_N")),
+        IOStandard("LVTTL")),
+]

artiq/gateware/rtio/__init__.py

@@ -1 +1,2 @@
 from artiq.gateware.rtio.core import Channel, RTIO
+from artiq.gateware.rtio.moninj import MonInj

artiq/gateware/rtio/core.py

@@ -44,7 +44,8 @@ class _RTIOCounter(Module):
 
         # # #
 
-        self.sync.rio += self.value_rio.eq(self.value_rio + 1),
+        # note: counter is in rtio domain and never affected by the reset CSRs
+        self.sync.rtio += self.value_rio.eq(self.value_rio + 1)
         gt = _GrayCodeTransfer(width)
         self.submodules += gt
         self.comb += gt.i.eq(self.value_rio), self.value_sys.eq(gt.o)
@@ -121,12 +122,20 @@ class _OutputManager(Module):
             sequence_error.eq(self.ev.timestamp < buf.timestamp[fine_ts_width:])
         ]
         if interface.suppress_nop:
-            self.sync.rsys += nop.eq(
+            # disable NOP at reset: do not suppress a first write with all 0s
+            nop_en = Signal(reset=0)
+            self.sync.rsys += [
+                nop.eq(nop_en &
                     optree("&",
                            [getattr(self.ev, a) == getattr(buf, a)
                             for a in ("data", "address")
                             if hasattr(self.ev, a)],
-                       default=0))
+                           default=0)),
+                # buf now contains valid data. enable NOP.
+                If(self.we & ~sequence_error, nop_en.eq(1)),
+                # underflows cancel the write. allow it to be retried.
+                If(self.underflow, nop_en.eq(0))
+            ]
         self.comb += self.sequence_error.eq(self.we & sequence_error)
 
         # Buffer read and FIFO write
@@ -247,11 +256,20 @@ class _InputManager(Module):
 
 
 class Channel:
-    def __init__(self, interface, ofifo_depth=64, ififo_depth=64):
+    def __init__(self, interface, probes=[], overrides=[],
+                 ofifo_depth=64, ififo_depth=64):
         self.interface = interface
+        self.probes = probes
+        self.overrides = overrides
         self.ofifo_depth = ofifo_depth
         self.ififo_depth = ififo_depth
 
+    @classmethod
+    def from_phy(cls, phy, **kwargs):
+        probes = getattr(phy, "probes", [])
+        overrides = getattr(phy, "overrides", [])
+        return cls(phy.rtlink, probes, overrides, **kwargs)
+
 
 class _KernelCSRs(AutoCSR):
     def __init__(self, chan_sel_width,

artiq/gateware/rtio/moninj.py

@@ -0,0 +1,68 @@
+from migen.fhdl.std import *
+from migen.bank.description import *
+from migen.genlib.cdc import BusSynchronizer, MultiReg
+
+
+class Monitor(Module, AutoCSR):
+    def __init__(self, channels):
+        chan_probes = [c.probes for c in channels]
+
+        max_chan_probes = max(len(cp) for cp in chan_probes)
+        max_probe_len = max(flen(p) for cp in chan_probes for p in cp)
+        self.chan_sel = CSRStorage(bits_for(len(chan_probes)-1))
+        self.probe_sel = CSRStorage(bits_for(max_chan_probes-1))
+        self.value_update = CSR()
+        self.value = CSRStatus(max_probe_len)
+
+        # # #
+
+        chan_probes_sys = []
+        for cp in chan_probes:
+            cp_sys = []
+            for p in cp:
+                vs = BusSynchronizer(flen(p), "rio", "rsys")
+                self.submodules += vs
+                self.comb += vs.i.eq(p)
+                cp_sys.append(vs.o)
+            cp_sys += [0]*(max_chan_probes-len(cp))
+            chan_probes_sys.append(Array(cp_sys)[self.probe_sel.storage])
+        self.sync += If(self.value_update.re,
+            self.value.status.eq(
+                Array(chan_probes_sys)[self.chan_sel.storage]))
+
+
+class Injector(Module, AutoCSR):
+    def __init__(self, channels):
+        chan_overrides = [c.overrides for c in channels]
+
+        max_chan_overrides = max(len(co) for co in chan_overrides)
+        max_override_len = max(flen(o) for co in chan_overrides for o in co)
+        self.chan_sel = CSRStorage(bits_for(len(chan_overrides)-1))
+        self.override_sel = CSRStorage(bits_for(max_chan_overrides-1))
+        self.value = CSR(max_override_len)
+
+        # # #
+
+        chan_overrides_sys = []
+        for n_channel, co in enumerate(chan_overrides):
+            co_sys = []
+            for n_override, o in enumerate(co):
+                # We do the clock domain transfer with a simple double-latch.
+                # Software has to ensure proper timing of any strobe signal etc.
+                # to avoid problematic glitches.
+                o_sys = Signal.like(o)
+                self.specials += MultiReg(o_sys, o, "rio")
+                self.sync += If(self.value.re & (self.chan_sel.storage == n_channel)
+                                & (self.override_sel.storage == n_override),
+                                    o_sys.eq(self.value.r))
+                co_sys.append(o_sys)
+            co_sys += [0]*(max_chan_overrides-len(co))
+            chan_overrides_sys.append(Array(co_sys)[self.override_sel.storage])
+        self.comb += self.value.w.eq(
+            Array(chan_overrides_sys)[self.chan_sel.storage])
+
+
+class MonInj(Module, AutoCSR):
+    def __init__(self, channels):
+        self.submodules.mon = Monitor(channels)
+        self.submodules.inj = Injector(channels)

artiq/gateware/rtio/phy/dds.py

@@ -0,0 +1,60 @@
+from migen.fhdl.std import *
+
+from artiq.gateware import ad9xxx
+from artiq.gateware.rtio.phy.wishbone import RT2WB
+
+
+class _AD9xxx(Module):
+    def __init__(self, ftw_base, pads, nchannels, **kwargs):
+        self.submodules._ll = RenameClockDomains(
+            ad9xxx.AD9xxx(pads, **kwargs), "rio")
+        self.submodules._rt2wb = RT2WB(flen(pads.a)+1, self._ll.bus)
+        self.rtlink = self._rt2wb.rtlink
+        self.probes = [Signal(32) for i in range(nchannels)]
+
+        # # #
+
+        # buffer the current address/data on the rtlink output
+        current_address = Signal.like(self.rtlink.o.address)
+        current_data = Signal.like(self.rtlink.o.data)
+        self.sync.rio += If(self.rtlink.o.stb,
+                            current_address.eq(self.rtlink.o.address),
+                            current_data.eq(self.rtlink.o.data))
+
+        # keep track of the currently selected channel
+        current_channel = Signal(max=nchannels)
+        self.sync.rio += If(current_address == 2**flen(pads.a) + 1,
+                            current_channel.eq(current_data))
+
+        # keep track of frequency tuning words, before they are FUDed
+        ftws = [Signal(32) for i in range(nchannels)]
+        for c, ftw in enumerate(ftws):
+            if flen(pads.d) == 8:
+                self.sync.rio += \
+                    If(current_channel == c, [
+                        If(current_address == ftw_base+i,
+                           ftw[i*8:(i+1)*8].eq(current_data))
+                        for i in range(4)])
+            elif flen(pads.d) == 16:
+                self.sync.rio += \
+                    If(current_channel == c, [
+                        If(current_address == ftw_base+2*i,
+                           ftw[i*16:(i+1)*16].eq(current_data))
+                        for i in range(2)])
+            else:
+                raise NotImplementedError
+
+        # FTW to probe on FUD
+        self.sync.rio += If(current_address == 2**flen(pads.a), [
+            If(current_channel == c, probe.eq(ftw))
+            for c, (probe, ftw) in enumerate(zip(self.probes, ftws))])
+
+
+class AD9858(_AD9xxx):
+    def __init__(self, pads, nchannels, **kwargs):
+        _AD9xxx.__init__(self, 0x0a, pads, nchannels, **kwargs)
+
+
+class AD9914(_AD9xxx):
+    def __init__(self, pads, nchannels, **kwargs):
+        _AD9xxx.__init__(self, 0x2d, pads, nchannels, **kwargs)

artiq/gateware/rtio/phy/ttl_simple.py

@@ -7,10 +7,24 @@ from artiq.gateware.rtio import rtlink
 class Output(Module):
     def __init__(self, pad):
         self.rtlink = rtlink.Interface(rtlink.OInterface(1))
+        self.probes = [pad]
+        override_en = Signal()
+        override_o = Signal()
+        self.overrides = [override_en, override_o]
 
         # # #
 
-        self.sync.rio_phy += If(self.rtlink.o.stb, pad.eq(self.rtlink.o.data))
+        pad_k = Signal()
+        self.sync.rio_phy += [
+            If(self.rtlink.o.stb,
+                pad_k.eq(self.rtlink.o.data)
+            ),
+            If(override_en,
+                pad.eq(override_o)
+            ).Else(
+                pad.eq(pad_k)
+            )
+        ]
 
 
 class Inout(Module):
@@ -18,6 +32,11 @@ class Inout(Module):
         self.rtlink = rtlink.Interface(
             rtlink.OInterface(2, 2),
             rtlink.IInterface(1))
+        override_en = Signal()
+        override_o = Signal()
+        override_oe = Signal()
+        self.overrides = [override_en, override_o, override_oe]
+        self.probes = []
 
         # # #
         
@@ -25,10 +44,21 @@ class Inout(Module):
         self.specials += ts.get_tristate(pad)
         sensitivity = Signal(2)
 
-        self.sync.rio_phy += If(self.rtlink.o.stb,
-                If(self.rtlink.o.address == 0, ts.o.eq(self.rtlink.o.data[0])),
-                If(self.rtlink.o.address == 1, ts.oe.eq(self.rtlink.o.data[0])),
+        o_k = Signal()
+        oe_k = Signal()
+        self.sync.rio_phy += [
+            If(self.rtlink.o.stb,
+                If(self.rtlink.o.address == 0, o_k.eq(self.rtlink.o.data[0])),
+                If(self.rtlink.o.address == 1, oe_k.eq(self.rtlink.o.data[0])),
+            ),
+            If(override_en,
+                ts.o.eq(override_o),
+                ts.oe.eq(override_oe)
+            ).Else(
+                ts.o.eq(o_k),
+                ts.oe.eq(oe_k)
             )
+        ]
         self.sync.rio += If(self.rtlink.o.stb & (self.rtlink.o.address == 2),
             sensitivity.eq(self.rtlink.o.data))
         
@@ -43,3 +73,31 @@ class Inout(Module):
             ),
             self.rtlink.i.data.eq(i)
         ]
+
+        self.probes += [i, ts.oe]
+
+
+class ClockGen(Module):
+    def __init__(self, pad, ftw_width=24):
+        self.rtlink = rtlink.Interface(
+            rtlink.OInterface(ftw_width, suppress_nop=False))
+
+        # # #
+
+        ftw = Signal(ftw_width)
+        acc = Signal(ftw_width)
+        self.sync.rio += If(self.rtlink.o.stb, ftw.eq(self.rtlink.o.data))
+        self.sync.rio_phy += [
+            acc.eq(acc + ftw),
+            # rtlink takes precedence over regular acc increments
+            If(self.rtlink.o.stb,
+                If(self.rtlink.o.data != 0,
+                    # known phase on frequency write: at rising edge
+                    acc.eq(2**(ftw_width - 1))
+                ).Else(
+                    # set output to 0 on stop
+                    acc.eq(0)
+                )
+            ),
+            pad.eq(acc[-1])
+        ]

artiq/gateware/soc.py

@@ -19,8 +19,9 @@ class AMPSoC:
 
         self.submodules.timer0 = timer.Timer(width=64)
 
-        self.submodules.kernel_cpu = amp.KernelCPU(
-            self.platform, self.sdram.crossbar.get_master())
+        self.submodules.kernel_cpu = amp.KernelCPU(self.platform)
+        self.add_wb_sdram_if(self.kernel_cpu.wb_sdram)
+
         self.submodules.mailbox = amp.Mailbox()
         self.add_wb_slave(mem_decoder(self.mem_map["mailbox"]),
                           self.mailbox.i1)

artiq/gui/displays.py

@@ -0,0 +1,130 @@
+from collections import OrderedDict
+
+from quamash import QtGui
+import pyqtgraph as pg
+from pyqtgraph import dockarea
+
+
+class _SimpleSettings(QtGui.QDialog):
+    def __init__(self, parent, prev_name, prev_settings,
+                 result_list, create_cb):
+        QtGui.QDialog.__init__(self, parent=parent)
+        self.setWindowTitle(self._window_title)
+
+        grid = QtGui.QGridLayout()
+        self.setLayout(grid)
+
+        grid.addWidget(QtGui.QLabel("Name:"), 0, 0)
+        self.name = name = QtGui.QLineEdit()
+        grid.addWidget(name, 0, 1)
+        if prev_name is not None:
+            name.insert(prev_name)
+
+        grid.addWidget(QtGui.QLabel("Result:"))
+        self.result = result = QtGui.QComboBox()
+        grid.addWidget(result, 1, 1)
+        result.addItems(result_list)
+        result.setEditable(True)
+        if "result" in prev_settings:
+            result.setEditText(prev_settings["result"])
+
+        buttons = QtGui.QDialogButtonBox(
+            QtGui.QDialogButtonBox.Ok | QtGui.QDialogButtonBox.Cancel)
+        grid.addWidget(buttons, 2, 0, 1, 2)
+        buttons.accepted.connect(self.accept)
+        buttons.rejected.connect(self.reject)
+
+        def on_accept():
+            create_cb(name.text(), {"result": result.currentText()})
+        self.accepted.connect(on_accept)
+
+    def accept(self):
+        if self.name.text() and self.result.currentText():
+            QtGui.QDialog.accept(self)
+
+
+class NumberDisplaySettings(_SimpleSettings):
+    _window_title = "Number display"
+
+
+class NumberDisplay(dockarea.Dock):
+    def __init__(self, name, settings):
+        dockarea.Dock.__init__(self, "Display: " + name, size=(250, 250),
+                               closable=True)
+        self.settings = settings
+        self.number = QtGui.QLCDNumber()
+        self.number.setDigitCount(10)
+        self.addWidget(self.number)
+
+    def data_sources(self):
+        return {self.settings["result"]}
+
+    def update_data(self, data):
+        result = self.settings["result"]
+        try:
+            n = float(data[result])
+        except:
+            n = "---"
+        self.number.display(n)
+
+
+class XYDisplaySettings(_SimpleSettings):
+    _window_title = "XY plot"
+
+
+class XYDisplay(dockarea.Dock):
+    def __init__(self, name, settings):
+        dockarea.Dock.__init__(self, "XY: " + name, size=(640, 480),
+                               closable=True)
+        self.settings = settings
+        self.plot = pg.PlotWidget()
+        self.addWidget(self.plot)
+
+    def data_sources(self):
+        return {self.settings["result"]}
+
+    def update_data(self, data):
+        result = self.settings["result"]
+        try:
+            y = data[result]
+        except KeyError:
+            return
+        self.plot.clear()
+        if not y:
+            return
+        self.plot.plot(y)
+
+
+class HistogramDisplaySettings(_SimpleSettings):
+    _window_title = "Histogram"
+
+
+class HistogramDisplay(dockarea.Dock):
+    def __init__(self, name, settings):
+        dockarea.Dock.__init__(self, "Histogram: " + name, size=(640, 480),
+                               closable=True)
+        self.settings = settings
+        self.plot = pg.PlotWidget()
+        self.addWidget(self.plot)
+
+    def data_sources(self):
+        return {self.settings["result"]}
+
+    def update_data(self, data):
+        result = self.settings["result"]
+        try:
+            y = data[result]
+        except KeyError:
+            return
+        x = list(range(len(y)+1))
+        self.plot.clear()
+        if not y:
+            return
+        self.plot.plot(x, y, stepMode=True, fillLevel=0, brush=(0, 0, 255, 150))
+
+
+display_types = OrderedDict([
+    ("Number", (NumberDisplaySettings, NumberDisplay)),
+    ("XY", (XYDisplaySettings, XYDisplay)),
+    ("Histogram", (HistogramDisplaySettings, HistogramDisplay))
+])

artiq/gui/explorer.py

@@ -1,11 +1,14 @@
 import asyncio
+import traceback
 
 from quamash import QtGui, QtCore
 from pyqtgraph import dockarea
 from pyqtgraph import LayoutWidget
 
 from artiq.protocols.sync_struct import Subscriber
+from artiq.protocols import pyon
 from artiq.gui.tools import DictSyncModel
+from artiq.gui.scan import ScanController
 
 
 class _ExplistModel(DictSyncModel):
@@ -21,46 +24,175 @@ class _ExplistModel(DictSyncModel):
         return k
 
 
-class ExplorerDock(dockarea.Dock):
-    def __init__(self, status_bar, schedule_ctl):
-        dockarea.Dock.__init__(self, "Explorer", size=(1100, 400))
+class _FreeValueEntry(QtGui.QLineEdit):
+    def __init__(self, procdesc):
+        QtGui.QLineEdit.__init__(self)
+        if "default" in procdesc:
+            self.insert(pyon.encode(procdesc["default"]))
 
+    def get_argument_value(self):
+        return pyon.decode(self.text())
+
+
+class _BooleanEntry(QtGui.QCheckBox):
+    def __init__(self, procdesc):
+        QtGui.QCheckBox.__init__(self)
+        if "default" in procdesc:
+            self.setChecked(procdesc["default"])
+
+    def get_argument_value(self):
+        return self.isChecked()
+
+
+class _EnumerationEntry(QtGui.QComboBox):
+    def __init__(self, procdesc):
+        QtGui.QComboBox.__init__(self)
+        self.choices = procdesc["choices"]
+        self.addItems(self.choices)
+        if "default" in procdesc:
+            try:
+                idx = self.choices.index(procdesc["default"])
+            except:
+                pass
+            else:
+                self.setCurrentIndex(idx)
+
+    def get_argument_value(self):
+        return self.choices[self.currentIndex()]
+
+
+class _NumberEntry(QtGui.QDoubleSpinBox):
+    def __init__(self, procdesc):
+        QtGui.QDoubleSpinBox.__init__(self)
+        if procdesc["step"] is not None:
+            self.setSingleStep(procdesc["step"])
+        if procdesc["min"] is not None:
+            self.setMinimum(procdesc["min"])
+        if procdesc["max"] is not None:
+            self.setMinimum(procdesc["max"])
+        if procdesc["unit"]:
+            self.setSuffix(" " + procdesc["unit"])
+        if "default" in procdesc:
+            self.setValue(procdesc["default"])
+
+    def get_argument_value(self):
+        return self.value()
+
+
+class _StringEntry(QtGui.QLineEdit):
+    def __init__(self, procdesc):
+        QtGui.QLineEdit.__init__(self)
+        if "default" in procdesc:
+            self.insert(procdesc["default"])
+
+    def get_argument_value(self):
+        return self.text()
+
+
+_procty_to_entry = {
+    "FreeValue": _FreeValueEntry,
+    "BooleanValue": _BooleanEntry,
+    "EnumerationValue": _EnumerationEntry,
+    "NumberValue": _NumberEntry,
+    "StringValue": _StringEntry,
+    "Scannable": ScanController
+}
+
+
+class _ArgumentSetter(LayoutWidget):
+    def __init__(self, dialog_parent, arguments):
+        LayoutWidget.__init__(self)
+        self.dialog_parent = dialog_parent
+
+        if not arguments:
+            self.addWidget(QtGui.QLabel("No arguments"), 0, 0)
+
+        self._args_to_entries = dict()
+        for n, (name, procdesc) in enumerate(arguments):
+            self.addWidget(QtGui.QLabel(name), n, 0)
+            entry = _procty_to_entry[procdesc["ty"]](procdesc)
+            self.addWidget(entry, n, 1)
+            self._args_to_entries[name] = entry
+
+    def get_argument_values(self):
+        r = dict()
+        for arg, entry in self._args_to_entries.items():
+            try:
+                r[arg] = entry.get_argument_value()
+            except:
+                msgbox = QtGui.QMessageBox(self.dialog_parent)
+                msgbox.setWindowTitle("Error")
+                msgbox.setText("Failed to obtain value for argument '{}'.\n{}"
+                               .format(arg, traceback.format_exc()))
+                msgbox.setStandardButtons(QtGui.QMessageBox.Ok)
+                msgbox.show()
+                return None
+        return r
+
+
+class ExplorerDock(dockarea.Dock):
+    def __init__(self, dialog_parent, status_bar, schedule_ctl):
+        dockarea.Dock.__init__(self, "Explorer", size=(1500, 500))
+
+        self.dialog_parent = dialog_parent
         self.status_bar = status_bar
         self.schedule_ctl = schedule_ctl
 
-        splitter = QtGui.QSplitter(QtCore.Qt.Horizontal)
-        self.addWidget(splitter)
+        self.splitter = QtGui.QSplitter(QtCore.Qt.Horizontal)
+        self.addWidget(self.splitter)
 
         grid = LayoutWidget()
-        splitter.addWidget(grid)
+        self.splitter.addWidget(grid)
 
         self.el = QtGui.QListView()
+        self.el.selectionChanged = self.update_argsetter
         grid.addWidget(self.el, 0, 0, colspan=4)
 
         self.datetime = QtGui.QDateTimeEdit()
         self.datetime.setDisplayFormat("MMM d yyyy hh:mm:ss")
         self.datetime.setCalendarPopup(True)
         self.datetime.setDate(QtCore.QDate.currentDate())
-        self.datetime_en = QtGui.QCheckBox("Set due date:")
+        self.datetime.dateTimeChanged.connect(self.enable_duedate)
+        self.datetime_en = QtGui.QCheckBox("Due date:")
         grid.addWidget(self.datetime_en, 1, 0)
-        grid.addWidget(self.datetime, 1, 1, colspan=3)
-
-        self.pipeline = QtGui.QLineEdit()
-        self.pipeline.insert("main")
-        grid.addLabel("Pipeline:", 2, 0)
-        grid.addWidget(self.pipeline, 2, 1)
+        grid.addWidget(self.datetime, 1, 1)
 
         self.priority = QtGui.QSpinBox()
         self.priority.setRange(-99, 99)
-        grid.addLabel("Priority:", 2, 2)
-        grid.addWidget(self.priority, 2, 3)
+        grid.addWidget(QtGui.QLabel("Priority:"), 1, 2)
+        grid.addWidget(self.priority, 1, 3)
+
+        self.pipeline = QtGui.QLineEdit()
+        self.pipeline.insert("main")
+        grid.addWidget(QtGui.QLabel("Pipeline:"), 2, 0)
+        grid.addWidget(self.pipeline, 2, 1)
+
+        self.flush = QtGui.QCheckBox("Flush")
+        grid.addWidget(self.flush, 2, 2, colspan=2)
 
         submit = QtGui.QPushButton("Submit")
         grid.addWidget(submit, 3, 0, colspan=4)
         submit.clicked.connect(self.submit_clicked)
 
-        placeholder = QtGui.QWidget()
-        splitter.addWidget(placeholder)
+        self.argsetter = _ArgumentSetter(self.dialog_parent, [])
+        self.splitter.addWidget(self.argsetter)
+        self.splitter.setSizes([grid.minimumSizeHint().width(), 1000])
+
+    def update_argsetter(self, selected, deselected):
+        selected = selected.indexes()
+        if selected:
+            row = selected[0].row()
+            key = self.explist_model.row_to_key[row]
+            expinfo = self.explist_model.backing_store[key]
+            arguments = expinfo["arguments"]
+            sizes = self.splitter.sizes()
+            self.argsetter.deleteLater()
+            self.argsetter = _ArgumentSetter(self.dialog_parent, arguments)
+            self.splitter.insertWidget(1, self.argsetter)
+            self.splitter.setSizes(sizes)
+
+    def enable_duedate(self):
+        self.datetime_en.setChecked(True)
 
     @asyncio.coroutine
     def sub_connect(self, host, port):
@@ -78,15 +210,15 @@ class ExplorerDock(dockarea.Dock):
         return self.explist_model
 
     @asyncio.coroutine
-    def submit(self, pipeline_name, file, experiment, arguments,
-               priority, due_date):
+    def submit(self, pipeline_name, file, class_name, arguments,
+               priority, due_date, flush):
         expid = {
             "file": file,
-            "experiment": experiment,
+            "class_name": class_name,
             "arguments": arguments,
         }
         rid = yield from self.schedule_ctl.submit(pipeline_name, expid,
-                                                  priority, due_date)
+                                                  priority, due_date, flush)
         self.status_bar.showMessage("Submitted RID {}".format(rid))
 
     def submit_clicked(self):
@@ -94,11 +226,15 @@ class ExplorerDock(dockarea.Dock):
         if idx:
             row = idx[0].row()
             key = self.explist_model.row_to_key[row]
-            expinfo = self.explist_model.data[key]
+            expinfo = self.explist_model.backing_store[key]
             if self.datetime_en.isChecked():
                 due_date = self.datetime.dateTime().toMSecsSinceEpoch()/1000
             else:
                 due_date = None
+            arguments = self.argsetter.get_argument_values()
+            if arguments is None:
+                return
             asyncio.async(self.submit(self.pipeline.text(),
-                                      expinfo["file"], expinfo["experiment"],
-                                      dict(), self.priority.value(), due_date))
+                                      expinfo["file"], expinfo["class_name"],
+                                      arguments, self.priority.value(),
+                                      due_date, self.flush.isChecked()))

artiq/gui/log.py

@@ -1,7 +1,57 @@
-from quamash import QtGui
+import asyncio
+
+from quamash import QtGui, QtCore
 from pyqtgraph import dockarea
 
+from artiq.protocols.sync_struct import Subscriber
+from artiq.gui.tools import ListSyncModel
+
+
+class _LogModel(ListSyncModel):
+    def __init__(self, parent, init):
+        ListSyncModel.__init__(self,
+            ["RID", "Message"],
+            parent, init)
+
+    def convert(self, v, column):
+        return v[column]
+
 
 class LogDock(dockarea.Dock):
     def __init__(self):
         dockarea.Dock.__init__(self, "Log", size=(1000, 300))
+
+        self.log = QtGui.QTableView()
+        self.log.setSelectionMode(QtGui.QAbstractItemView.NoSelection)
+        self.log.horizontalHeader().setResizeMode(
+            QtGui.QHeaderView.ResizeToContents)
+        self.log.setHorizontalScrollMode(
+            QtGui.QAbstractItemView.ScrollPerPixel)
+        self.log.setShowGrid(False)
+        self.log.setTextElideMode(QtCore.Qt.ElideNone)
+        self.addWidget(self.log)
+        self.scroll_at_bottom = False
+
+    @asyncio.coroutine
+    def sub_connect(self, host, port):
+        self.subscriber = Subscriber("log", self.init_log_model)
+        yield from self.subscriber.connect(host, port)
+
+    @asyncio.coroutine
+    def sub_close(self):
+        yield from self.subscriber.close()
+
+    def rows_inserted_before(self):
+        scrollbar = self.log.verticalScrollBar()
+        self.scroll_at_bottom = scrollbar.value() == scrollbar.maximum()
+
+    def rows_inserted_after(self):
+        if self.scroll_at_bottom:
+            self.log.scrollToBottom()
+
+    def init_log_model(self, init):
+        table_model = _LogModel(self.log, init)
+        self.log.setModel(table_model)
+        table_model.rowsAboutToBeInserted.connect(self.rows_inserted_before)
+        table_model.rowsInserted.connect(self.rows_inserted_after)
+        return table_model

artiq/gui/moninj.py

@@ -0,0 +1,300 @@
+import asyncio
+import logging
+import socket
+import struct
+from operator import itemgetter
+
+from quamash import QtGui, QtCore
+from pyqtgraph import dockarea
+
+from artiq.tools import TaskObject
+from artiq.protocols.sync_struct import Subscriber
+
+
+logger = logging.getLogger(__name__)
+
+
+_mode_enc = {
+    "exp": 0,
+    "1": 1,
+    "0": 2,
+    "in": 3
+}
+
+
+class _TTLWidget(QtGui.QFrame):
+    def __init__(self, send_to_device, channel, force_out, name):
+        self.send_to_device = send_to_device
+        self.channel = channel
+        self.force_out = force_out
+
+        QtGui.QFrame.__init__(self)
+
+        self.setFrameShape(QtGui.QFrame.Panel)
+        self.setFrameShadow(QtGui.QFrame.Raised)
+
+        grid = QtGui.QGridLayout()
+        self.setLayout(grid)
+        label = QtGui.QLabel(name)
+        label.setAlignment(QtCore.Qt.AlignCenter)
+        grid.addWidget(label, 1, 1)
+
+        self._direction = QtGui.QLabel()
+        self._direction.setAlignment(QtCore.Qt.AlignCenter)
+        grid.addWidget(self._direction, 2, 1)
+        self._override = QtGui.QLabel()
+        self._override.setAlignment(QtCore.Qt.AlignCenter)
+        grid.addWidget(self._override, 3, 1)
+        self._value = QtGui.QLabel()
+        self._value.setAlignment(QtCore.Qt.AlignCenter)
+        grid.addWidget(self._value, 4, 1, 6, 1)
+
+        self._value.setContextMenuPolicy(QtCore.Qt.ActionsContextMenu)
+        menu = QtGui.QActionGroup(self._value)
+        menu.setExclusive(True)
+        self._expctl_action = QtGui.QAction("Experiment controlled", self._value)
+        self._expctl_action.setCheckable(True)
+        menu.addAction(self._expctl_action)
+        self._value.addAction(self._expctl_action)
+        self._expctl_action.triggered.connect(lambda: self.set_mode("exp"))
+        separator = QtGui.QAction(self._value)
+        separator.setSeparator(True)
+        self._value.addAction(separator)
+        self._force1_action = QtGui.QAction("Force 1", self._value)
+        self._force1_action.setCheckable(True)
+        menu.addAction(self._force1_action)
+        self._value.addAction(self._force1_action)
+        self._force1_action.triggered.connect(lambda: self.set_mode("1"))
+        self._force0_action = QtGui.QAction("Force 0", self._value)
+        self._force0_action.setCheckable(True)
+        menu.addAction(self._force0_action)
+        self._value.addAction(self._force0_action)
+        self._force0_action.triggered.connect(lambda: self.set_mode("0"))
+        self._forcein_action = QtGui.QAction("Force input", self._value)
+        self._forcein_action.setCheckable(True)
+        self._forcein_action.setEnabled(not force_out)
+        menu.addAction(self._forcein_action)
+        self._value.addAction(self._forcein_action)
+        self._forcein_action.triggered.connect(lambda: self.set_mode("in"))
+
+        self.set_value(0, False, False)
+
+    def set_mode(self, mode):
+        data = struct.pack("bbb",
+                           2,  # MONINJ_REQ_TTLSET
+                           self.channel, _mode_enc[mode])
+        self.send_to_device(data)
+
+    def set_value(self, value, oe, override):
+        value_s = "1" if value else "0"
+        if override:
+            value_s = "<b>" + value_s + "</b>"
+            color = " color=\"red\""
+            self._override.setText("<font size=\"1\" color=\"red\">OVERRIDE</font>")
+        else:
+            color = ""
+            self._override.setText("")
+        self._value.setText("<font size=\"9\"{}>{}</font>".format(
+                            color, value_s))
+        oe = oe or self.force_out
+        direction = "OUT" if oe else "IN"
+        self._direction.setText("<font size=\"1\">" + direction + "</font>")
+        if override:
+            if oe:
+                if value:
+                    self._force1_action.setChecked(True)
+                else:
+                    self._force0_action.setChecked(True)
+            else:
+                self._forcein_action.setChecked(True)
+        else:
+            self._expctl_action.setChecked(True)
+
+
+class _DDSWidget(QtGui.QFrame):
+    def __init__(self, send_to_device, channel, sysclk, name):
+        self.send_to_device = send_to_device
+        self.channel = channel
+        self.sysclk = sysclk
+        self.name = name
+
+        QtGui.QFrame.__init__(self)
+
+        self.setFrameShape(QtGui.QFrame.Panel)
+        self.setFrameShadow(QtGui.QFrame.Raised)
+
+        grid = QtGui.QGridLayout()
+        self.setLayout(grid)
+        label = QtGui.QLabel(name)
+        label.setAlignment(QtCore.Qt.AlignCenter)
+        grid.addWidget(label, 1, 1)
+
+        self._value = QtGui.QLabel()
+        self._value.setAlignment(QtCore.Qt.AlignCenter)
+        grid.addWidget(self._value, 2, 1, 6, 1)
+
+        self.set_value(0)
+
+    def set_value(self, ftw):
+        frequency = ftw*self.sysclk/2**32
+        self._value.setText("<font size=\"6\">{:.7f} MHz</font>"
+                            .format(float(frequency)/1e6))
+
+
+class _DeviceManager:
+    def __init__(self, send_to_device, init):
+        self.send_to_device = send_to_device
+        self.ddb = dict()
+        self.ttl_cb = lambda: None
+        self.ttl_widgets = dict()
+        self.dds_cb = lambda: None
+        self.dds_widgets = dict()
+        for k, v in init.items():
+            self[k] = v
+
+    def __setitem__(self, k, v):
+        self.ddb[k] = v
+        if k in self.ttl_widgets:
+            del self[k]
+        if not isinstance(v, dict):
+            return
+        try:
+            if v["type"] == "local":
+                if v["module"] == "artiq.coredevice.ttl":
+                    channel = v["arguments"]["channel"]
+                    force_out = v["class"] == "TTLOut"
+                    self.ttl_widgets[channel] = _TTLWidget(
+                        self.send_to_device, channel, force_out, k)
+                    self.ttl_cb()
+                if (v["module"] == "artiq.coredevice.dds"
+                        and v["class"] in {"AD9858", "AD9914"}):
+                    channel = v["arguments"]["channel"]
+                    sysclk = v["arguments"]["sysclk"]
+                    self.dds_widgets[channel] = _DDSWidget(
+                        self.send_to_device, channel, sysclk, k)
+                    self.dds_cb()
+        except KeyError:
+            pass
+
+    def __delitem__(self, k):
+        del self.ddb[k]
+        if k in self.ttl_widgets:
+            del self.ttl_widgets[k]
+            self.ttl_cb()
+
+    def get_core_addr(self):
+        try:
+            comm = self.ddb["comm"]
+            while isinstance(comm, str):
+                comm = self.ddb[comm]
+            return comm["arguments"]["host"]
+        except KeyError:
+            return None
+
+
+class _MonInjDock(dockarea.Dock):
+    def __init__(self, name):
+        dockarea.Dock.__init__(self, name, size=(1500, 500))
+
+        self.grid = QtGui.QGridLayout()
+        gridw = QtGui.QWidget()
+        gridw.setLayout(self.grid)
+        self.addWidget(gridw)
+
+    def layout_widgets(self, widgets):
+        w = self.grid.itemAt(0)
+        while w is not None:
+            self.grid.removeItem(w)
+            w = self.grid.itemAt(0)
+        for i, (_, w) in enumerate(sorted(widgets, key=itemgetter(0))):
+            self.grid.addWidget(w, i // 4, i % 4)
+
+
+class MonInj(TaskObject):
+    def __init__(self):
+        self.ttl_dock = _MonInjDock("TTL")
+        self.dds_dock = _MonInjDock("DDS")
+
+        self.subscriber = Subscriber("devices", self.init_devices)
+        self.dm = _DeviceManager(self.send_to_device, dict())
+        self.transport = None
+
+    @asyncio.coroutine
+    def start(self, server, port):
+        loop = asyncio.get_event_loop()
+        yield from loop.create_datagram_endpoint(lambda: self,
+                                                 family=socket.AF_INET)
+        try:
+            yield from self.subscriber.connect(server, port)
+            try:
+                TaskObject.start(self)
+            except:
+                yield from self.subscriber.close()
+                raise
+        except:
+            self.transport.close()
+            raise
+
+    @asyncio.coroutine
+    def stop(self):
+        yield from TaskObject.stop(self)
+        yield from self.subscriber.close()
+        if self.transport is not None:
+            self.transport.close()
+            self.transport = None
+
+    def connection_made(self, transport):
+        self.transport = transport
+
+    def datagram_received(self, data, addr):
+        try:
+            ttl_levels, ttl_oes, ttl_overrides = \
+                struct.unpack(">QQQ", data[:8*3])
+            for channel, w in self.dm.ttl_widgets.items():
+                w.set_value(ttl_levels & (1 << channel),
+                            ttl_oes & (1 << channel),
+                            ttl_overrides & (1 << channel))
+            dds_data = data[8*3:]
+            ndds = len(dds_data)//4
+            ftws = struct.unpack(">" + "I"*ndds, dds_data)
+            for channel, w in self.dm.dds_widgets.items():
+                try:
+                    ftw = ftws[channel]
+                except KeyError:
+                    pass
+                else:
+                    w.set_value(ftw)
+        except:
+            logger.warning("failed to process datagram", exc_info=True)
+
+    def error_received(self, exc):
+        logger.warning("datagram endpoint error")
+
+    def connection_lost(self, exc):
+        self.transport = None
+
+    def send_to_device(self, data):
+        ca = self.dm.get_core_addr()
+        if ca is None:
+            logger.warning("could not find core device address")
+        elif self.transport is None:
+            logger.warning("datagram endpoint not available")
+        else:
+            self.transport.sendto(data, (ca, 3250))
+
+    @asyncio.coroutine
+    def _do(self):
+        while True:
+            yield from asyncio.sleep(0.2)
+            # MONINJ_REQ_MONITOR
+            self.send_to_device(b"\x01")
+
+    def init_devices(self, d):
+        self.dm = _DeviceManager(self.send_to_device, d)
+        self.dm.ttl_cb = lambda: self.ttl_dock.layout_widgets(
+                            self.dm.ttl_widgets.items())
+        self.dm.dds_cb = lambda: self.dds_dock.layout_widgets(
+                            self.dm.dds_widgets.items())
+        self.dm.ttl_cb()
+        self.dm.dds_cb()
+        return self.dm

artiq/gui/parameters.py

@@ -1,10 +1,11 @@
 import asyncio
 
-from quamash import QtGui
+from quamash import QtGui, QtCore
 from pyqtgraph import dockarea
+from pyqtgraph import LayoutWidget
 
 from artiq.protocols.sync_struct import Subscriber
-from artiq.gui.tools import DictSyncModel
+from artiq.gui.tools import DictSyncModel, short_format
 
 
 class ParametersModel(DictSyncModel):
@@ -19,18 +20,41 @@ class ParametersModel(DictSyncModel):
         if column == 0:
             return k
         elif column == 1:
-            return str(v)
+            return short_format(v)
         else:
            raise ValueError
 
 
 class ParametersDock(dockarea.Dock):
     def __init__(self):
-        dockarea.Dock.__init__(self, "Parameters", size=(500, 300))
+        dockarea.Dock.__init__(self, "Parameters", size=(400, 300))
+
+        grid = LayoutWidget()
+        self.addWidget(grid)
+
+        self.search = QtGui.QLineEdit()
+        self.search.setPlaceholderText("search...")
+        self.search.editingFinished.connect(self.search_parameters)
+        grid.addWidget(self.search, 0, 0)
 
         self.table = QtGui.QTableView()
         self.table.setSelectionBehavior(QtGui.QAbstractItemView.SelectRows)
-        self.addWidget(self.table)
+        self.table.horizontalHeader().setResizeMode(
+            QtGui.QHeaderView.ResizeToContents)
+        grid.addWidget(self.table, 1, 0)
+
+    def search_parameters(self):
+        model = self.table.model()
+        parentIndex = model.index(0, 0)
+        numRows = model.rowCount(parentIndex)
+
+        for row in range(numRows):
+            index = model.index(row, 0)
+            parameter = model.data(index, QtCore.Qt.DisplayRole)
+            if parameter.startswith(self.search.displayText()):
+                self.table.showRow(row)
+            else:
+                self.table.hideRow(row)
 
     @asyncio.coroutine
     def sub_connect(self, host, port):

artiq/gui/results.py

@@ -0,0 +1,109 @@
+import asyncio
+from collections import OrderedDict
+from functools import partial
+
+from quamash import QtGui, QtCore
+from pyqtgraph import dockarea
+from pyqtgraph import LayoutWidget
+
+from artiq.protocols.sync_struct import Subscriber
+from artiq.gui.tools import DictSyncModel, short_format
+from artiq.gui.displays import *
+
+
+class ResultsModel(DictSyncModel):
+    def __init__(self, parent, init):
+        DictSyncModel.__init__(self, ["Result", "Value"],
+                               parent, init)
+
+    def sort_key(self, k, v):
+        return k
+
+    def convert(self, k, v, column):
+        if column == 0:
+            return k
+        elif column == 1:
+            return short_format(v)
+        else:
+           raise ValueError
+
+
+class ResultsDock(dockarea.Dock):
+    def __init__(self, dialog_parent, dock_area):
+        dockarea.Dock.__init__(self, "Results", size=(1500, 500))
+        self.dialog_parent = dialog_parent
+        self.dock_area = dock_area
+
+        grid = LayoutWidget()
+        self.addWidget(grid)
+
+        self.table = QtGui.QTableView()
+        self.table.setSelectionMode(QtGui.QAbstractItemView.NoSelection)
+        self.table.horizontalHeader().setResizeMode(
+            QtGui.QHeaderView.ResizeToContents)
+        grid.addWidget(self.table, 0, 0)
+
+        add_display_box = QtGui.QGroupBox("Add display")
+        grid.addWidget(add_display_box, 0, 1)
+        display_grid = QtGui.QGridLayout()
+        add_display_box.setLayout(display_grid)
+
+        for n, name in enumerate(display_types.keys()):
+            btn = QtGui.QPushButton(name)
+            display_grid.addWidget(btn, n, 0)
+            btn.clicked.connect(partial(self.create_dialog, name))
+
+        self.displays = dict()
+
+    @asyncio.coroutine
+    def sub_connect(self, host, port):
+        self.subscriber = Subscriber("rt_results", self.init_results_model,
+                                     self.on_mod)
+        yield from self.subscriber.connect(host, port)
+
+    @asyncio.coroutine
+    def sub_close(self):
+        yield from self.subscriber.close()
+
+    def init_results_model(self, init):
+        self.table_model = ResultsModel(self.table, init)
+        self.table.setModel(self.table_model)
+        return self.table_model
+
+    def on_mod(self, mod):
+        if mod["action"] == "init":
+            for display in self.displays.values():
+                display.update_data(self.table_model.backing_store)
+            return
+
+        if mod["action"] == "setitem":
+            source = mod["key"]
+        elif mod["path"]:
+            source = mod["path"][0]
+        else:
+            return
+
+        for display in self.displays.values():
+            if source in display.data_sources():
+                display.update_data(self.table_model.backing_store)
+
+    def create_dialog(self, ty):
+        dlg_class = display_types[ty][0]
+        dlg = dlg_class(self.dialog_parent, None, dict(),
+            sorted(self.table_model.backing_store.keys()),
+            partial(self.create_display, ty, None))
+        dlg.open()
+
+    def create_display(self, ty, prev_name, name, settings):
+        if prev_name is not None and prev_name in self.displays:
+            raise NotImplementedError
+        dsp_class = display_types[ty][1]
+        dsp = dsp_class(name, settings)
+        self.displays[name] = dsp
+        dsp.update_data(self.table_model.backing_store)
+
+        def on_close():
+            del self.displays[name]
+        dsp.sigClosed.connect(on_close)
+        self.dock_area.addDock(dsp)
+        self.dock_area.floatDock(dsp)

artiq/gui/scan.py

@@ -0,0 +1,137 @@
+from quamash import QtGui
+from pyqtgraph import LayoutWidget
+
+
+class _Range(LayoutWidget):
+    def __init__(self, global_min, global_max, global_step, unit):
+        LayoutWidget.__init__(self)
+
+        def apply_properties(spinbox):
+            if global_min is not None:
+                spinbox.setMinimum(global_min)
+            if global_max is not None:
+                spinbox.setMaximum(global_max)
+            if global_step is not None:
+                spinbox.setSingleStep(global_step)
+            if unit:
+                spinbox.setSuffix(" " + unit)
+
+        self.addWidget(QtGui.QLabel("Min:"), 0, 0)
+        self.min = QtGui.QDoubleSpinBox()
+        apply_properties(self.min)
+        self.addWidget(self.min, 0, 1)
+
+        self.addWidget(QtGui.QLabel("Max:"), 0, 2)
+        self.max = QtGui.QDoubleSpinBox()
+        apply_properties(self.max)
+        self.addWidget(self.max, 0, 3)
+
+        self.addWidget(QtGui.QLabel("#Points:"), 0, 4)
+        self.npoints = QtGui.QSpinBox()
+        self.npoints.setMinimum(2)
+        self.npoints.setValue(10)
+        self.addWidget(self.npoints, 0, 5)
+
+    def set_values(self, min, max, npoints):
+        self.min.setValue(min)
+        self.max.setValue(max)
+        self.npoints.setValue(npoints)
+
+    def get_values(self):
+        return {
+            "min": self.min.value(),
+            "max": self.max.value(),
+            "npoints": self.npoints.value()
+        }
+
+
+class ScanController(LayoutWidget):
+    def __init__(self, procdesc):
+        LayoutWidget.__init__(self)
+
+        self.stack = QtGui.QStackedWidget()
+        self.addWidget(self.stack, 1, 0, colspan=4)
+
+        gmin, gmax = procdesc["global_min"], procdesc["global_max"]
+        gstep = procdesc["global_step"]
+        unit = procdesc["unit"]
+
+        self.v_noscan = QtGui.QDoubleSpinBox()
+        if gmin is not None:
+            self.v_noscan.setMinimum(gmin)
+        if gmax is not None:
+            self.v_noscan.setMaximum(gmax)
+        if gstep is not None:
+            self.v_noscan.setSingleStep(gstep)
+        if unit:
+            self.v_noscan.setSuffix(" " + unit)
+        self.v_noscan_gr = LayoutWidget()
+        self.v_noscan_gr.addWidget(QtGui.QLabel("Value:"), 0, 0)
+        self.v_noscan_gr.addWidget(self.v_noscan, 0, 1)
+        self.stack.addWidget(self.v_noscan_gr)
+
+        self.v_linear = _Range(gmin, gmax, gstep, unit)
+        self.stack.addWidget(self.v_linear)
+
+        self.v_random = _Range(gmin, gmax, gstep, unit)
+        self.stack.addWidget(self.v_random)
+
+        self.v_explicit = QtGui.QLineEdit()
+        self.v_explicit_gr = LayoutWidget()
+        self.v_explicit_gr.addWidget(QtGui.QLabel("Sequence:"), 0, 0)
+        self.v_explicit_gr.addWidget(self.v_explicit, 0, 1)
+        self.stack.addWidget(self.v_explicit_gr)
+
+        self.noscan = QtGui.QRadioButton("No scan")
+        self.linear = QtGui.QRadioButton("Linear")
+        self.random = QtGui.QRadioButton("Random")
+        self.explicit = QtGui.QRadioButton("Explicit")
+        radiobuttons = QtGui.QButtonGroup()
+        for n, b in enumerate([self.noscan, self.linear,
+                               self.random, self.explicit]):
+            self.addWidget(b, 0, n)
+            radiobuttons.addButton(b)
+            b.toggled.connect(self.select_page)
+
+        if "default" in procdesc:
+            d = procdesc["default"]
+            if d["ty"] == "NoScan":
+                self.noscan.setChecked(True)
+                self.v_noscan.setValue(d["value"])
+            elif d["ty"] == "LinearScan":
+                self.linear.setChecked(True)
+                self.v_linear.set_values(d["min"], d["max"], d["step"])
+            elif d["ty"] == "RandomScan":
+                self.random.setChecked(True)
+                self.v_random.set_values(d["min"], d["max"], d["step"])
+            elif d["ty"] == "ExplicitScan":
+                self.explicit.setChecked(True)
+                self.v_explicit.insert(" ".join(
+                    [str(x) for x in d["sequence"]]))
+        else:
+            self.noscan.setChecked(True)
+
+    def select_page(self):
+        if self.noscan.isChecked():
+            self.stack.setCurrentWidget(self.v_noscan_gr)
+        elif self.linear.isChecked():
+            self.stack.setCurrentWidget(self.v_linear)
+        elif self.random.isChecked():
+            self.stack.setCurrentWidget(self.v_random)
+        elif self.explicit.isChecked():
+            self.stack.setCurrentWidget(self.v_explicit_gr)
+
+    def get_argument_value(self):
+        if self.noscan.isChecked():
+            return {"ty": "NoScan", "value": self.v_noscan.value()}
+        elif self.linear.isChecked():
+            d = {"ty": "LinearScan"}
+            d.update(self.v_linear.get_values())
+            return d
+        elif self.random.isChecked():
+            d = {"ty": "RandomScan"}
+            d.update(self.v_random.get_values())
+            return d
+        elif self.explicit.isChecked():
+            sequence = [float(x) for x in self.v_explicit.text().split()]
+            return {"ty": "ExplicitScan", "sequence": sequence}

artiq/gui/schedule.py

@@ -6,19 +6,18 @@ from pyqtgraph import dockarea
 
 from artiq.protocols.sync_struct import Subscriber
 from artiq.gui.tools import DictSyncModel
-from artiq.tools import format_arguments
 
 
 class _ScheduleModel(DictSyncModel):
     def __init__(self, parent, init):
         DictSyncModel.__init__(self,
             ["RID", "Pipeline", "Status", "Prio", "Due date",
-             "File", "Experiment", "Arguments"],
+             "File", "Class name"],
             parent, init)
 
     def sort_key(self, k, v):
-        # order by due date, and then by priority and RID
-        return (v["due_date"] or 0, -v["priority"], k)
+        # order by priority, and then by due date and RID
+        return (-v["priority"], v["due_date"] or 0, k)
 
     def convert(self, k, v, column):
         if column == 0:
@@ -38,12 +37,10 @@ class _ScheduleModel(DictSyncModel):
         elif column == 5:
             return v["expid"]["file"]
         elif column == 6:
-            if v["expid"]["experiment"] is None:
+            if v["expid"]["class_name"] is None:
                 return ""
             else:
-                return v["expid"]["experiment"]
-        elif column == 7:
-            return format_arguments(v["expid"]["arguments"])
+                return v["expid"]["class_name"]
         else:
             raise ValueError
 
@@ -56,6 +53,9 @@ class ScheduleDock(dockarea.Dock):
 
         self.table = QtGui.QTableView()
         self.table.setSelectionBehavior(QtGui.QAbstractItemView.SelectRows)
+        self.table.setSelectionMode(QtGui.QAbstractItemView.SingleSelection)
+        self.table.horizontalHeader().setResizeMode(
+            QtGui.QHeaderView.ResizeToContents)
         self.addWidget(self.table)
 
         self.table.setContextMenuPolicy(QtCore.Qt.ActionsContextMenu)

artiq/gui/tools.py

@@ -1,29 +1,56 @@
 from quamash import QtCore
 
 
-class _DictSyncSubstruct:
+def short_format(v):
+    t = type(v)
+    if t is int or t is float:
+        return str(v)
+    else:
+        r = t.__name__
+        if t is list or t is dict or t is set:
+            r += " ({})".format(len(v))
+        return r
+
+
+class _SyncSubstruct:
     def __init__(self, update_cb, ref):
         self.update_cb = update_cb
         self.ref = ref
 
-    def __getitem__(self, key):
-        return _DictSyncSubstruct(self.update_cb, self.ref[key])
+    def append(self, x):
+        self.ref.append(x)
+        self.update_cb()
+
+    def insert(self, i, x):
+        self.ref.insert(i, x)
+        self.update_cb()
+
+    def pop(self, i=-1):
+        self.ref.pop(i)
+        self.update_cb()
 
     def __setitem__(self, key, value):
         self.ref[key] = value
         self.update_cb()
 
+    def __delitem__(self, key):
+        self.ref.__delitem__(key)
+        self.update_cb()
+
+    def __getitem__(self, key):
+        return _SyncSubstruct(self.update_cb, self.ref[key])
+
 
 class DictSyncModel(QtCore.QAbstractTableModel):
     def __init__(self, headers, parent, init):
         self.headers = headers
-        self.data = init
-        self.row_to_key = sorted(self.data.keys(),
-                                 key=lambda k: self.sort_key(k, self.data[k]))
+        self.backing_store = init
+        self.row_to_key = sorted(self.backing_store.keys(),
+                                 key=lambda k: self.sort_key(k, self.backing_store[k]))
         QtCore.QAbstractTableModel.__init__(self, parent)
 
     def rowCount(self, parent):
-        return len(self.data)
+        return len(self.backing_store)
 
     def columnCount(self, parent):
         return len(self.headers)
@@ -34,7 +61,7 @@ class DictSyncModel(QtCore.QAbstractTableModel):
         elif role != QtCore.Qt.DisplayRole:
             return None
         k = self.row_to_key[index.row()]
-        return self.convert(k, self.data[k], index.column())
+        return self.convert(k, self.backing_store[k], index.column())
 
     def headerData(self, col, orientation, role):
         if (orientation == QtCore.Qt.Horizontal
@@ -48,7 +75,7 @@ class DictSyncModel(QtCore.QAbstractTableModel):
         while lo < hi:
             mid = (lo + hi)//2
             if (self.sort_key(self.row_to_key[mid],
-                              self.data[self.row_to_key[mid]])
+                              self.backing_store[self.row_to_key[mid]])
                     < self.sort_key(k, v)):
                 lo = mid + 1
             else:
@@ -56,7 +83,7 @@ class DictSyncModel(QtCore.QAbstractTableModel):
         return lo
 
     def __setitem__(self, k, v):
-        if k in self.data:
+        if k in self.backing_store:
             old_row = self.row_to_key.index(k)
             new_row = self._find_row(k, v)
             if old_row == new_row:
@@ -65,7 +92,7 @@ class DictSyncModel(QtCore.QAbstractTableModel):
             else:
                 self.beginMoveRows(QtCore.QModelIndex(), old_row, old_row,
                                    QtCore.QModelIndex(), new_row)
-            self.data[k] = v
+            self.backing_store[k] = v
             self.row_to_key[old_row], self.row_to_key[new_row] = \
                 self.row_to_key[new_row], self.row_to_key[old_row]
             if old_row != new_row:
@@ -73,7 +100,7 @@ class DictSyncModel(QtCore.QAbstractTableModel):
         else:
             row = self._find_row(k, v)
             self.beginInsertRows(QtCore.QModelIndex(), row, row)
-            self.data[k] = v
+            self.backing_store[k] = v
             self.row_to_key.insert(row, k)
             self.endInsertRows()
 
@@ -81,16 +108,66 @@ class DictSyncModel(QtCore.QAbstractTableModel):
         row = self.row_to_key.index(k)
         self.beginRemoveRows(QtCore.QModelIndex(), row, row)
         del self.row_to_key[row]
-        del self.data[k]
+        del self.backing_store[k]
         self.endRemoveRows()
 
-    def __getitem__(self, key):
+    def __getitem__(self, k):
         def update():
-            self[key] = self.data[key]
-        return _DictSyncSubstruct(update, self.data[key])
+            self[k] = self.backing_store[k]
+        return _SyncSubstruct(update, self.backing_store[k])
 
     def sort_key(self, k, v):
         raise NotImplementedError
 
     def convert(self, k, v, column):
         raise NotImplementedError
+
+
+class ListSyncModel(QtCore.QAbstractTableModel):
+    def __init__(self, headers, parent, init):
+        self.headers = headers
+        self.backing_store = init
+        QtCore.QAbstractTableModel.__init__(self, parent)
+
+    def rowCount(self, parent):
+        return len(self.backing_store)
+
+    def columnCount(self, parent):
+        return len(self.headers)
+
+    def data(self, index, role):
+        if not index.isValid():
+            return None
+        elif role != QtCore.Qt.DisplayRole:
+            return None
+        return self.convert(self.backing_store[index.row()], index.column())
+
+    def headerData(self, col, orientation, role):
+        if (orientation == QtCore.Qt.Horizontal
+                and role == QtCore.Qt.DisplayRole):
+            return self.headers[col]
+        return None
+
+    def __setitem__(self, k, v):
+        self.dataChanged.emit(self.index(k, 0),
+                              self.index(k, len(self.headers)))
+        self.backing_store[k] = v
+
+    def __delitem__(self, k):
+        self.beginRemoveRows(QtCore.QModelIndex(), k, k)
+        del self.backing_store[k]
+        self.endRemoveRows()
+
+    def __getitem__(self, k):
+        def update():
+            self[k] = self.backing_store[k]
+        return _SyncSubstruct(update, self.backing_store[k])
+
+    def append(self, v):
+        row = len(self.backing_store)
+        self.beginInsertRows(QtCore.QModelIndex(), row, row)
+        self.backing_store.append(v)
+        self.endInsertRows()
+
+    def convert(self, v, column):
+        raise NotImplementedError

artiq/language/__init__.py

@@ -0,0 +1,12 @@
+from artiq.language import core, environment, units, scan
+from artiq.language.core import *
+from artiq.language.environment import *
+from artiq.language.units import *
+from artiq.language.scan import *
+
+
+__all__ = []
+__all__.extend(core.__all__)
+__all__.extend(environment.__all__)
+__all__.extend(units.__all__)
+__all__.extend(scan.__all__)

artiq/language/core.py

@@ -2,8 +2,20 @@
 Core ARTIQ extensions to the Python language.
 """
 
-from collections import namedtuple as _namedtuple
-from functools import wraps as _wraps
+from collections import namedtuple
+from functools import wraps
+
+
+__all__ = ["int64", "round64", "kernel", "portable",
+           "set_time_manager", "set_syscall_manager", "set_watchdog_factory",
+           "RuntimeException", "EncodedException"]
+
+# global namespace for kernels
+kernel_globals = ("sequential", "parallel",
+    "delay_mu", "now_mu", "at_mu", "delay",
+    "seconds_to_mu", "mu_to_seconds",
+    "syscall", "watchdog")
+__all__.extend(kernel_globals)
 
 
 class int64(int):
@@ -28,7 +40,6 @@ class int64(int):
     True
     >>> a + b
     6
-
     """
     pass
 
@@ -62,12 +73,11 @@ def round64(x):
     This function is equivalent to ``int64(round(x))`` but, when targeting
     static compilation, prevents overflow when the rounded value is too large
     to fit in a 32-bit integer.
-
     """
     return int64(round(x))
 
 
-_KernelFunctionInfo = _namedtuple("_KernelFunctionInfo", "core_name k_function")
+_KernelFunctionInfo = namedtuple("_KernelFunctionInfo", "core_name k_function")
 
 
 def kernel(arg):
@@ -88,11 +98,10 @@ def kernel(arg):
 
     The decorator takes an optional parameter that defaults to ``core`` and
     specifies the name of the attribute to use as core device driver.
-
     """
     if isinstance(arg, str):
         def real_decorator(k_function):
-            @_wraps(k_function)
+            @wraps(k_function)
             def run_on_core(exp, *k_args, **k_kwargs):
                 return getattr(exp, arg).run(k_function,
                                              ((exp,) + k_args), k_kwargs)
@@ -101,7 +110,7 @@ def kernel(arg):
             return run_on_core
         return real_decorator
     else:
-        @_wraps(arg)
+        @wraps(arg)
         def run_on_core(exp, *k_args, **k_kwargs):
             return exp.core.run(arg, ((exp,) + k_args), k_kwargs)
         run_on_core.k_function_info = _KernelFunctionInfo(
@@ -117,7 +126,6 @@ def portable(f):
     host will be executed on the host (no compilation and execution on the
     core device). A decorated function called from a kernel will be executed
     on the core device (no RPC).
-
     """
     f.k_function_info = _KernelFunctionInfo(core_name="", k_function=f)
     return f
@@ -131,9 +139,10 @@ class _DummyTimeManager:
     enter_sequential = _not_implemented
     enter_parallel = _not_implemented
     exit = _not_implemented
+    take_time_mu = _not_implemented
+    get_time_mu = _not_implemented
+    set_time_mu = _not_implemented
     take_time = _not_implemented
-    get_time = _not_implemented
-    set_time = _not_implemented
 
 _time_manager = _DummyTimeManager()
 
@@ -143,7 +152,6 @@ def set_time_manager(time_manager):
     directly inside the Python interpreter. The time manager responds to the
     entering and leaving of parallel/sequential blocks, delays, etc. and
     provides a time-stamped logging facility for events.
-
     """
     global _time_manager
     _time_manager = time_manager
@@ -160,17 +168,10 @@ _syscall_manager = _DummySyscallManager()
 def set_syscall_manager(syscall_manager):
     """Set the system call manager used for simulating the core device's
     runtime in the Python interpreter.
-
     """
     global _syscall_manager
     _syscall_manager = syscall_manager
 
-# global namespace for kernels
-
-kernel_globals = ("sequential", "parallel",
-    "delay", "now", "at", "time_to_cycles", "cycles_to_time",
-    "syscall", "watchdog")
-
 
 class _Sequential:
     """In a sequential block, statements are executed one after another, with
@@ -190,7 +191,6 @@ class _Parallel:
     The execution time of a parallel block is the execution time of its longest
     statement. A parallel block may contain sequential blocks, which themselves
     may contain parallel blocks, etc.
-
     """
     def __enter__(self):
         _time_manager.enter_parallel()
@@ -200,50 +200,49 @@ class _Parallel:
 parallel = _Parallel()
 
 
-def delay(duration):
-    """Increases the RTIO time by the given amount.
+def delay_mu(duration):
+    """Increases the RTIO time by the given amount (in machine units)."""
+    _time_manager.take_time_mu(duration)
 
-    """
+
+def now_mu():
+    """Retrieves the current RTIO time, in machine units."""
+    return _time_manager.get_time_mu()
+
+
+def at_mu(time):
+    """Sets the RTIO time to the specified absolute value, in machine units."""
+    _time_manager.set_time_mu(time)
+
+
+def delay(duration):
+    """Increases the RTIO time by the given amount (in seconds)."""
     _time_manager.take_time(duration)
 
 
-def now():
-    """Retrieves the current RTIO time, in seconds.
+def seconds_to_mu(seconds, core=None):
+    """Converts seconds to the corresponding number of machine units
+    (RTIO cycles).
 
-    """
-    return _time_manager.get_time()
-
-
-def at(time):
-    """Sets the RTIO time to the specified absolute value.
-
-    """
-    _time_manager.set_time(time)
-
-
-def time_to_cycles(time, core=None):
-    """Converts time to the corresponding number of RTIO cycles.
-
-    :param time: Time (in seconds) to convert.
-    :param core: Core device for which to perform the conversion. Specify only
-        when running in the interpreter (not in kernel).
-
-    """
-    if core is None:
-        raise ValueError("Core device must be specified for time conversion")
-    return round64(time.amount//core.ref_period)
-
-
-def cycles_to_time(cycles, core=None):
-    """Converts RTIO cycles to the corresponding time.
-
-    :param time: Cycle count to convert.
-    :param core: Core device for which to perform the conversion. Specify only
+    :param seconds: time (in seconds) to convert.
+    :param core: core device for which to perform the conversion. Specify only
         when running in the interpreter (not in kernel).
     """
     if core is None:
         raise ValueError("Core device must be specified for time conversion")
-    return cycles*core.ref_period
+    return round64(seconds//core.ref_period)
+
+
+def mu_to_seconds(mu, core=None):
+    """Converts machine units (RTIO cycles) to seconds.
+
+    :param mu: cycle count to convert.
+    :param core: core device for which to perform the conversion. Specify only
+        when running in the interpreter (not in kernel).
+    """
+    if core is None:
+        raise ValueError("Core device must be specified for time conversion")
+    return mu*core.ref_period
 
 
 def syscall(*args):

artiq/language/db.py

@@ -1,130 +0,0 @@
-"""
-Connection to device, parameter and result database.
-"""
-
-class _AttributeKind:
-    pass
-
-
-class Device(_AttributeKind):
-    """Represents a device for ``AutoDB`` to process."""
-    pass
-
-
-class NoDefault:
-    """Represents the absence of a default value for ``Parameter``
-    and ``Argument``.
-    """
-    pass
-
-
-class Parameter(_AttributeKind):
-    """Represents a parameter (from the database) for ``AutoDB``
-    to process.
-
-    :param default: Default value of the parameter to be used if not found
-        in the database.
-    """
-    def __init__(self, default=NoDefault):
-        self.default = default
-
-
-class Argument(_AttributeKind):
-    """Represents an argument (specifiable at instance creation) for
-    ``AutoDB`` to process.
-
-    :param default: Default value of the argument to be used if not specified
-        at instance creation.
-    """
-    def __init__(self, default=NoDefault):
-        self.default = default
-
-
-class Result(_AttributeKind):
-    """Represents a result for ``AutoDB`` to process."""
-    pass
-
-
-class AutoDB:
-    """Base class to automate device, parameter and result database access.
-
-    Drivers and experiments should in most cases overload this class to
-    obtain the parameters and devices (including the core device) that they
-    need, report results, and modify parameters.
-
-    :param dbh: database hub to use. If ``None``, all devices and parameters
-        must be supplied as keyword arguments, and reporting results and
-        modifying parameters is not supported.
-    """
-    class DBKeys:
-        pass
-
-    realtime_results = dict()
-
-    def __init__(self, dbh=None, **kwargs):
-        self.dbh = dbh
-
-        for k, v in kwargs.items():
-            object.__setattr__(self, k, v)
-
-        for k in dir(self.DBKeys):
-            if k not in self.__dict__:
-                ak = getattr(self.DBKeys, k)
-                if isinstance(ak, Argument):
-                    if ak.default is NoDefault:
-                        raise AttributeError(
-                            "No value specified for argument '{}'".format(k))
-                    object.__setattr__(self, k, ak.default)
-                elif isinstance(ak, Device):
-                    try:
-                        dev = self.dbh.get_device(k)
-                    except KeyError:
-                        raise KeyError("Device '{}' not found".format(k))
-                    object.__setattr__(self, k, dev)
-        self.build()
-        if self.dbh is not None and self.realtime_results:
-            self.dbh.add_rt_results(self.realtime_results)
-
-    def __getattr__(self, name):
-        ak = getattr(self.DBKeys, name)
-        if isinstance(ak, Parameter):
-            try:
-                if self.dbh is None:
-                    raise KeyError
-                return self.dbh.get_parameter(name)
-            except KeyError:
-                if ak.default is not NoDefault:
-                    return ak.default
-                else:
-                    raise AttributeError("Parameter '{}' not in database"
-                                         " and without default value"
-                                         .format(name))
-        elif isinstance(ak, Result):
-            try:
-                return self.dbh.get_result(name)
-            except KeyError:
-                raise AttributeError("Result '{}' not found".format(name))
-        else:
-            raise ValueError
-
-    def __setattr__(self, name, value):
-        try:
-            ak = getattr(self.DBKeys, name)
-        except AttributeError:
-            object.__setattr__(self, name, value)
-        else:
-            if isinstance(ak, Parameter):
-                self.dbh.set_parameter(name, value)
-            elif isinstance(ak, Result):
-                self.dbh.set_result(name, value)
-            else:
-                raise ValueError
-
-    def build(self):
-        """This is called by ``__init__`` after the parameter initialization
-        is done.
-
-        The user may overload this method to complete the object's
-        initialization with all parameters available.
-        """
-        pass

artiq/language/environment.py

@@ -0,0 +1,298 @@
+from collections import OrderedDict
+from inspect import isclass
+
+
+__all__ = ["NoDefault",
+           "FreeValue", "BooleanValue", "EnumerationValue",
+           "NumberValue", "StringValue",
+           "HasEnvironment",
+           "Experiment", "EnvExperiment", "is_experiment"]
+
+
+class NoDefault:
+    """Represents the absence of a default value."""
+    pass
+
+
+class DefaultMissing(Exception):
+    """Raised by the ``default`` method of argument processors when no default
+    value is available."""
+    pass
+
+
+class _SimpleArgProcessor:
+    def __init__(self, default=NoDefault):
+        if default is not NoDefault:
+            self.default_value = default
+
+    def default(self):
+        if not hasattr(self, "default_value"):
+            raise DefaultMissing
+        return self.default_value
+
+    def process(self, x):
+        return x
+
+    def describe(self):
+        d = {"ty": self.__class__.__name__}
+        if hasattr(self, "default_value"):
+            d["default"] = self.default_value
+        return d
+
+
+class FreeValue(_SimpleArgProcessor):
+    """An argument that can be an arbitrary Python value."""
+    pass
+
+
+class BooleanValue(_SimpleArgProcessor):
+    """A boolean argument."""
+    pass
+
+
+class EnumerationValue(_SimpleArgProcessor):
+    """An argument that can take a string value among a predefined set of
+    values.
+
+    :param choices: A list of string representing the possible values of the
+        argument.
+    """
+    def __init__(self, choices, default=NoDefault):
+        _SimpleArgProcessor.__init__(self, default)
+        assert default is NoDefault or default in choices
+        self.choices = choices
+
+    def describe(self):
+        d = _SimpleArgProcessor.describe(self)
+        d["choices"] = self.choices
+        return d
+
+
+class NumberValue(_SimpleArgProcessor):
+    """An argument that can take a numerical value (typically floating point).
+
+    :param unit: A string representing the unit of the value, for user
+        interface (UI) purposes.
+    :param step: The step with with the value should be modified by up/down
+        buttons in a UI.
+    :param min: The minimum value of the argument.
+    :param max: The maximum value of the argument.
+    """
+    def __init__(self, default=NoDefault, unit="", step=None,
+                 min=None, max=None):
+        _SimpleArgProcessor.__init__(self, default)
+        self.unit = unit
+        self.step = step
+        self.min = min
+        self.max = max
+
+    def describe(self):
+        d = _SimpleArgProcessor.describe(self)
+        d["unit"] = self.unit
+        d["step"] = self.step
+        d["min"] = self.min
+        d["max"] = self.max
+        return d
+
+
+class StringValue(_SimpleArgProcessor):
+    """A string argument."""
+    pass
+
+
+class HasEnvironment:
+    """Provides methods to manage the environment of an experiment (devices,
+    parameters, results, arguments)."""
+    def __init__(self, dmgr=None, pdb=None, rdb=None, *,
+                 param_override=dict(), default_arg_none=False, **kwargs):
+        self.requested_args = OrderedDict()
+
+        self.__dmgr = dmgr
+        self.__pdb = pdb
+        self.__rdb = rdb
+        self.__param_override = param_override
+        self.__default_arg_none = default_arg_none
+
+        self.__kwargs = kwargs
+        self.__in_build = True
+        self.build()
+        self.__in_build = False
+        for key in self.__kwargs.keys():
+            if key not in self.requested_args:
+                raise TypeError("Got unexpected argument: " + key)
+        del self.__kwargs
+
+    def build(self):
+        """Must be implemented by the user to request arguments.
+
+        Other initialization steps such as requesting devices and parameters
+        or initializing real-time results may also be performed here.
+
+        When the repository is scanned, any requested devices and parameters
+        are set to ``None``."""
+        raise NotImplementedError
+
+    def dbs(self):
+        return self.__dmgr, self.__pdb, self.__rdb
+
+    def get_argument(self, key, processor=None):
+        """Retrieves and returns the value of an argument.
+
+        :param key: Name of the argument.
+        :param processor: A description of how to process the argument, such
+            as instances of ``BooleanValue`` and ``NumberValue``.
+        """
+        if not self.__in_build:
+            raise TypeError("get_argument() should only "
+                            "be called from build()")
+        if processor is None:
+            processor = FreeValue()
+        self.requested_args[key] = processor
+        try:
+            argval = self.__kwargs[key]
+        except KeyError:
+            try:
+                return processor.default()
+            except DefaultMissing:
+                if self.__default_arg_none:
+                    return None
+                else:
+                    raise
+        return processor.process(argval)
+
+    def attr_argument(self, key, processor=None):
+        """Sets an argument as attribute. The names of the argument and of the
+        attribute are the same."""
+        setattr(self, key, self.get_argument(key, processor))
+
+    def get_device(self, key):
+        """Creates and returns a device driver."""
+        if self.__dmgr is None:
+            raise ValueError("Device manager not present")
+        return self.__dmgr.get(key)
+
+    def attr_device(self, key):
+        """Sets a device driver as attribute. The names of the device driver
+         and of the attribute are the same."""
+        setattr(self, key, self.get_device(key))
+
+    def get_parameter(self, key, default=NoDefault):
+        """Retrieves and returns a parameter."""
+        if self.__pdb is None:
+            raise ValueError("Parameter database not present")
+        if key in self.__param_override:
+            return self.__param_override[key]
+        try:
+            return self.__pdb.get(key)
+        except KeyError:
+            if default is not NoDefault:
+                return default
+            else:
+                raise
+
+    def attr_parameter(self, key, default=NoDefault):
+        """Sets a parameter as attribute. The names of the argument and of the
+        parameter are the same."""
+        setattr(self, key, self.get_parameter(key, default))
+
+    def set_parameter(self, key, value):
+        """Writes the value of a parameter into the parameter database."""
+        if self.__pdb is None:
+            raise ValueError("Parameter database not present")
+        self.__pdb.set(key, value)
+
+    def set_result(self, key, value, realtime=False):
+        """Writes the value of a result.
+
+        :param realtime: Marks the result as real-time, making it immediately
+            available to clients such as the user interface. Returns a
+            ``Notifier`` instance that can be used to modify mutable results
+            (such as lists) and synchronize the modifications with the clients.
+        """
+        if self.__rdb is None:
+            raise ValueError("Result database not present")
+        if realtime:
+            if key in self.__rdb.nrt:
+                raise ValueError("Result is already non-realtime")
+            self.__rdb.rt[key] = value
+            notifier = self.__rdb.rt[key]
+            notifier.kernel_attr_init = False
+            return notifier
+        else:
+            if key in self.__rdb.rt.read:
+                raise ValueError("Result is already realtime")
+            self.__rdb.nrt[key] = value
+
+    def attr_rtresult(self, key, init_value):
+        """Writes the value of a real-time result and sets the corresponding
+        ``Notifier`` as attribute. The names of the result and of the
+        attribute are the same."""
+        setattr(self, key, set_result(key, init_value, True))
+
+    def get_result(self, key):
+        """Retrieves the value of a result.
+
+        There is no difference between real-time and non-real-time results
+        (this function does not return ``Notifier`` instances).
+        """
+        if self.__rdb is None:
+            raise ValueError("Result database not present")
+        return self.__rdb.get(key)
+
+
+class Experiment:
+    """Base class for experiments.
+
+    Deriving from this class enables automatic experiment discovery in
+    Python modules.
+    """
+    def prepare(self):
+        """Entry point for pre-computing data necessary for running the
+        experiment.
+
+        Doing such computations outside of ``run`` enables more efficient
+        scheduling of multiple experiments that need to access the shared
+        hardware during part of their execution.
+
+        This method must not interact with the hardware.
+        """
+        pass
+
+    def run(self):
+        """The main entry point of the experiment.
+
+        This method must be overloaded by the user to implement the main
+        control flow of the experiment.
+
+        This method may interact with the hardware.
+
+        The experiment may call the scheduler's ``pause`` method while in
+        ``run``.
+        """
+        raise NotImplementedError
+
+    def analyze(self):
+        """Entry point for analyzing the results of the experiment.
+
+        This method may be overloaded by the user to implement the analysis
+        phase of the experiment, for example fitting curves.
+
+        Splitting this phase from ``run`` enables tweaking the analysis
+        algorithm on pre-existing data, and CPU-bound analyses to be run
+        overlapped with the next experiment in a pipelined manner.
+
+        This method must not interact with the hardware.
+        """
+        pass
+
+
+class EnvExperiment(Experiment, HasEnvironment):
+    pass
+
+
+def is_experiment(o):
+    """Checks if a Python object is an instantiable user experiment."""
+    return (isclass(o)
+        and issubclass(o, Experiment)
+        and o is not Experiment
+        and o is not EnvExperiment)

artiq/language/experiment.py

@@ -1,40 +0,0 @@
-from inspect import isclass
-
-
-class Experiment:
-    """Base class for experiments.
-
-    Deriving from this class enables automatic experiment discovery in
-    Python modules.
-    """
-    def run(self):
-        """The main entry point of the experiment.
-
-        This method must be overloaded by the user to implement the main
-        control flow of the experiment.
-        """
-        raise NotImplementedError
-
-    def analyze(self):
-        """Entry point for analyzing the results of the experiment.
-
-        This method may be overloaded by the user to implement the analysis
-        phase of the experiment, for example fitting curves.
-
-        Splitting this phase from ``run`` enables tweaking the analysis
-        algorithm on pre-existing data, and CPU-bound analyses to be run
-        overlapped with the next experiment in a pipelined manner.
-
-        This method must not interact with the hardware.
-        """
-        pass
-
-
-def has_analyze(experiment):
-    """Checks if an experiment instance overloaded its ``analyze`` method."""
-    return experiment.analyze.__func__ is not Experiment.analyze
-
-
-def is_experiment(o):
-    """Checks if a Python object is an instantiable experiment."""
-    return isclass(o) and issubclass(o, Experiment) and o is not Experiment

artiq/language/scan.py

@@ -0,0 +1,114 @@
+from random import Random, shuffle
+import inspect
+
+from artiq.language.core import *
+from artiq.language.environment import NoDefault, DefaultMissing
+
+
+__all__ = ["NoScan", "LinearScan", "RandomScan", "ExplicitScan", "Scannable"]
+
+
+class NoScan:
+    def __init__(self, value):
+        self.value = value
+
+    @portable
+    def _gen(self):
+        yield self.value
+
+    @portable
+    def __iter__(self):
+        return self._gen()
+
+    def describe(self):
+        return {"ty": "NoScan", "value": self.value}
+
+
+class LinearScan:
+    def __init__(self, min, max, npoints):
+        self.min = min
+        self.max = max
+        self.npoints = npoints
+
+    @portable
+    def _gen(self):
+        r = self.max - self.min
+        d = self.npoints - 1
+        for i in range(self.npoints):
+            yield r*i/d + self.min
+
+    @portable
+    def __iter__(self):
+        return self._gen()
+
+    def describe(self):
+        return {"ty": "LinearScan",
+                "min": self.min, "max": self.max, "npoints": self.npoints}
+
+
+class RandomScan:
+    def __init__(self, min, max, npoints, seed=0):
+        self.sequence = list(LinearScan(min, max, npoints))
+        shuffle(self.sequence, Random(seed).random)
+
+    @portable
+    def __iter__(self):
+        return iter(self.sequence)
+
+    def describe(self):
+        return {"ty": "RandomScan",
+                "min": self.min, "max": self.max, "npoints": self.npoints}
+
+
+class ExplicitScan:
+    def __init__(self, sequence):
+        self.sequence = sequence
+
+    @portable
+    def __iter__(self):
+        return iter(self.sequence)
+
+    def describe(self):
+        return {"ty": "ExplicitScan", "sequence": self.sequence}
+
+
+_ty_to_scan = {
+    "NoScan": NoScan,
+    "LinearScan": LinearScan,
+    "RandomScan": RandomScan,
+    "ExplicitScan": ExplicitScan
+}
+
+
+class Scannable:
+    def __init__(self, global_min=None, global_max=None, global_step=None,
+                 unit="", default=NoDefault):
+        self.global_min = global_min
+        self.global_max = global_max
+        self.global_step = global_step
+        self.unit = unit
+        if default is not NoDefault:
+            self.default_value = default
+
+    def default(self):
+        if not hasattr(self, "default_value"):
+            raise DefaultMissing
+        return self.default_value
+
+    def process(self, x):
+        cls = _ty_to_scan[x["ty"]]
+        args = dict()
+        for arg in inspect.getargspec(cls).args[1:]:
+            if arg in x:
+                args[arg] = x[arg]
+        return cls(**args)
+
+    def describe(self):
+        d = {"ty": "Scannable"}
+        d["global_min"] = self.global_min
+        d["global_max"] = self.global_max
+        d["global_step"] = self.global_step
+        d["unit"] = self.unit
+        if hasattr(self, "default_value"):
+            d["default"] = self.default_value.describe()
+        return d

artiq/language/units.py

@@ -1,266 +1,20 @@
-"""
-Definition and management of physical units.
-
-"""
-
-from fractions import Fraction as _Fraction
-
-
-class DimensionError(Exception):
-    """Raised when attempting an operation with incompatible units.
-
-    When targeting the core device, all units are statically managed at
-    compilation time. Thus, when raised by functions in this module, this
-    exception cannot be caught in the kernel as it is raised by the compiler
-    instead.
-
-    """
-    pass
-
-
-def mul_dimension(l, r):
-    """Returns the unit obtained by multiplying unit ``l`` with unit ``r``.
-
-    Raises ``DimensionError`` if the resulting unit is not implemented.
-
-    """
-    if l is None:
-        return r
-    if r is None:
-        return l
-    if {l, r} == {"Hz", "s"}:
-        return None
-    raise DimensionError
-
-
-def _rmul_dimension(l, r):
-    return mul_dimension(r, l)
-
-
-def div_dimension(l, r):
-    """Returns the unit obtained by dividing unit ``l`` with unit ``r``.
-
-    Raises ``DimensionError`` if the resulting unit is not implemented.
-
-    """
-    if l == r:
-        return None
-    if r is None:
-        return l
-    if l is None:
-        if r == "s":
-            return "Hz"
-        if r == "Hz":
-            return "s"
-    raise DimensionError
-
-
-def _rdiv_dimension(l, r):
-    return div_dimension(r, l)
-
-
-def addsub_dimension(x, y):
-    """Returns the unit obtained by adding or subtracting unit ``l`` with
-    unit ``r``.
-
-    Raises ``DimensionError`` if ``l`` and ``r`` are different.
-
-    """
-    if x == y:
-        return x
-    else:
-        raise DimensionError
-
+__all__ = []
 
 _prefixes_str = "pnum_kMG"
-_smallest_prefix = _Fraction(1, 10**12)
-
-
-def _format(amount, unit):
-    if amount is NotImplemented:
-        return NotImplemented
-    if unit is None:
-        return amount
-    else:
-        return Quantity(amount, unit)
-
-
-class Quantity:
-    """Represents an amount in a given fundamental unit (identified by a
-    string).
-
-    The amount can be of any Python numerical type (integer, float,
-    Fraction, ...).
-    Arithmetic operations and comparisons are directly delegated to the
-    underlying numerical types.
-
-    """
-    def __init__(self, amount, unit):
-        self.amount = amount
-        self.unit = unit
-
-    def __repr__(self):
-        r_amount = self.amount
-        if isinstance(r_amount, int) or isinstance(r_amount, _Fraction):
-            r_prefix = 0
-            r_amount = r_amount/_smallest_prefix
-            if r_amount:
-                numerator = r_amount.numerator
-                while numerator % 1000 == 0 and r_prefix < len(_prefixes_str):
-                    numerator /= 1000
-                    r_amount /= 1000
-                    r_prefix += 1
-            prefix_str = _prefixes_str[r_prefix]
-            if prefix_str == "_":
-                prefix_str = ""
-            return str(r_amount) + " " + prefix_str + self.unit
-        else:
-            return str(r_amount) + " " + self.unit
-
-    def __float__(self):
-        return float(self.amount)
-
-    # mul/div
-    def _binop(self, other, opf_name, dim_function):
-        opf = getattr(self.amount, opf_name)
-        if isinstance(other, Quantity):
-            amount = opf(other.amount)
-            unit = dim_function(self.unit, other.unit)
-        else:
-            amount = opf(other)
-            unit = dim_function(self.unit, None)
-        return _format(amount, unit)
-
-    def __mul__(self, other):
-        return self._binop(other, "__mul__", mul_dimension)
-
-    def __rmul__(self, other):
-        return self._binop(other, "__rmul__", _rmul_dimension)
-
-    def __truediv__(self, other):
-        return self._binop(other, "__truediv__", div_dimension)
-
-    def __rtruediv__(self, other):
-        return self._binop(other, "__rtruediv__", _rdiv_dimension)
-
-    def __floordiv__(self, other):
-        return self._binop(other, "__floordiv__", div_dimension)
-
-    def __rfloordiv__(self, other):
-        return self._binop(other, "__rfloordiv__", _rdiv_dimension)
-
-    # unary ops
-    def __neg__(self):
-        return Quantity(self.amount.__neg__(), self.unit)
-
-    def __pos__(self):
-        return Quantity(self.amount.__pos__(), self.unit)
-
-    def __abs__(self):
-        return Quantity(abs(self.amount), self.unit)
-
-    # add/sub
-    def __add__(self, other):
-        return self._binop(other, "__add__", addsub_dimension)
-
-    def __radd__(self, other):
-        return self._binop(other, "__radd__", addsub_dimension)
-
-    def __sub__(self, other):
-        return self._binop(other, "__sub__", addsub_dimension)
-
-    def __rsub__(self, other):
-        return self._binop(other, "__rsub__", addsub_dimension)
-
-    def __mod__(self, other):
-        return self._binop(other, "__mod__", addsub_dimension)
-
-    def __rmod__(self, other):
-        return self._binop(other, "__rmod__", addsub_dimension)
-
-    # comparisons
-    def _cmp(self, other, opf_name):
-        if not isinstance(other, Quantity) or other.unit != self.unit:
-            raise DimensionError
-        return getattr(self.amount, opf_name)(other.amount)
-
-    def __lt__(self, other):
-        return self._cmp(other, "__lt__")
-
-    def __le__(self, other):
-        return self._cmp(other, "__le__")
-
-    def __eq__(self, other):
-        return self._cmp(other, "__eq__")
-
-    def __ne__(self, other):
-        return self._cmp(other, "__ne__")
-
-    def __gt__(self, other):
-        return self._cmp(other, "__gt__")
-
-    def __ge__(self, other):
-        return self._cmp(other, "__ge__")
+_smallest_prefix_exp = -12
 
 
 def _register_unit(unit, prefixes):
-    amount = _smallest_prefix
+    exponent = _smallest_prefix_exp
     for prefix in _prefixes_str:
         if prefix in prefixes:
-            quantity = Quantity(amount, unit)
             full_name = prefix + unit if prefix != "_" else unit
-            globals()[full_name] = quantity
-        amount *= 1000
+            globals()[full_name] = 10.**exponent
+            __all__.append(full_name)
+        exponent += 3
+
 
 _register_unit("s", "pnum_")
 _register_unit("Hz", "_kMG")
 _register_unit("dB", "_")
 _register_unit("V", "um_k")
-
-
-def check_unit(value, unit):
-    """Checks that the value has the specified unit. Unit specification is
-    a string representing the unit without any prefix (e.g. ``s``, ``Hz``).
-    Checking for a dimensionless value (not a ``Quantity`` instance) is done
-    by setting ``unit`` to ``None``.
-
-    If the units do not match, ``DimensionError`` is raised.
-
-    This function can be used in kernels and is executed at compilation time.
-
-    There is already unit checking built into the arithmetic, so you typically
-    need to use this function only when using the ``amount`` property of
-    ``Quantity``.
-
-    """
-    if unit is None:
-        if isinstance(value, Quantity):
-            raise DimensionError
-    else:
-        if not isinstance(value, Quantity) or value.unit != unit:
-            raise DimensionError
-
-def strip_unit(value, unit):
-    """Check that the value has the specified unit and returns its amount.
-    Raises ``DimensionError`` if the units does not match.
-
-    If the passed value is not a ``Quantity``, it is assumed to be in the
-    specified unit and is returned unchanged.
-
-    If ``unit`` is ``None``, passing a ``Quantity`` as value raises
-    ``DimensionError``.
-
-    """
-    if unit is None:
-        if isinstance(value, Quantity):
-            raise DimensionError
-        else:
-            return value
-    else:
-        if isinstance(value, Quantity):
-            if value.unit != unit:
-                raise DimensionError
-            else:
-                return value.amount
-        else:
-            return value

artiq/master/repository.py

@@ -1,39 +1,70 @@
 import os
+import logging
+import asyncio
 
 from artiq.protocols.sync_struct import Notifier
-from artiq.tools import file_import
-from artiq.language.experiment import is_experiment
+from artiq.master.worker import Worker
 
 
-def scan_experiments():
+logger = logging.getLogger(__name__)
+
+
+@asyncio.coroutine
+def _scan_experiments(log):
     r = dict()
     for f in os.listdir("repository"):
         if f.endswith(".py"):
             try:
-                m = file_import(os.path.join("repository", f))
-            except:
-                continue
-            for k, v in m.__dict__.items():
-                if is_experiment(v):
-                    if v.__doc__ is None:
-                        name = k
-                    else:
-                        name = v.__doc__.splitlines()[0].strip()
-                        if name[-1] == ".":
-                            name = name[:-1]
+                full_name = os.path.join("repository", f)
+                worker = Worker({"log": lambda message: log("scan", message)})
+                try:
+                    description = yield from worker.examine(full_name)
+                finally:
+                    yield from worker.close()
+                for class_name, class_desc in description.items():
+                    name = class_desc["name"]
+                    arguments = class_desc["arguments"]
+                    if name in r:
+                        logger.warning("Duplicate experiment name: '%s'", name)
+                        basename = name
+                        i = 1
+                        while name in r:
+                            name = basename + str(i)
+                            i += 1
                     entry = {
-                        "file": os.path.join("repository", f),
-                        "experiment": k,
-                        "gui_file": getattr(v, "__artiq_gui_file__", None)
+                        "file": full_name,
+                        "class_name": class_name,
+                        "arguments": arguments
                     }
                     r[name] = entry
+            except:
+                logger.warning("Skipping file '%s'", f, exc_info=True)
     return r
 
 
-class Repository:
-    def __init__(self):
-        self.explist = Notifier(scan_experiments())
+def _sync_explist(target, source):
+    for k in list(target.read.keys()):
+        if k not in source:
+            del target[k]
+    for k in source.keys():
+        if k not in target.read or target.read[k] != source[k]:
+            target[k] = source[k]
 
-    def get_data(self, filename):
-        with open(os.path.join("repository", filename)) as f:
-            return f.read()
+
+class Repository:
+    def __init__(self, log_fn):
+        self.explist = Notifier(dict())
+        self._scanning = False
+        self.log_fn = log_fn
+
+    @asyncio.coroutine
+    def scan(self):
+        if self._scanning:
+            return
+        self._scanning = True
+        new_explist = yield from _scan_experiments(self.log_fn)
+        _sync_explist(self.explist, new_explist)
+        self._scanning = False
+
+    def scan_async(self):
+        asyncio.async(self.scan())

artiq/master/results.py

@@ -1,103 +0,0 @@
-import os
-import time
-import re
-
-import numpy
-import h5py
-
-from artiq.protocols.sync_struct import Notifier, process_mod
-
-
-def get_hdf5_output(start_time, rid, name):
-    dirname = os.path.join("results",
-                           time.strftime("%Y-%m-%d", start_time),
-                           time.strftime("%H-%M", start_time))
-    filename = "{:09}-{}.h5".format(rid, name)
-    os.makedirs(dirname, exist_ok=True)
-    return h5py.File(os.path.join(dirname, filename), "w")
-
-
-def get_last_rid():
-    r = -1
-    try:
-        day_folders = os.listdir("results")
-    except:
-        return r
-    day_folders = filter(lambda x: re.fullmatch('\d\d\d\d-\d\d-\d\d', x),
-                         day_folders)
-    for df in day_folders:
-        day_path = os.path.join("results", df)
-        try:
-            minute_folders = os.listdir(day_path)
-        except:
-            continue
-        minute_folders = filter(lambda x: re.fullmatch('\d\d-\d\d', x),
-                                          minute_folders)
-        for mf in minute_folders:
-            minute_path = os.path.join(day_path, mf)
-            try:
-                h5files = os.listdir(minute_path)
-            except:
-                continue
-            for x in h5files:
-                m = re.fullmatch('(\d\d\d\d\d\d\d\d\d)-.*\.h5', x)
-                rid = int(m.group(1))
-                if rid > r:
-                    r = rid
-    return r
-
-
-_type_to_hdf5 = {
-    int: h5py.h5t.STD_I64BE,
-    float: h5py.h5t.IEEE_F64BE
-}
-
-def result_dict_to_hdf5(f, rd):
-    for name, data in rd.items():
-        if isinstance(data, list):
-            el_ty = type(data[0])
-            for d in data:
-                if type(d) != el_ty:
-                    raise TypeError("All list elements must have the same"
-                                    " type for HDF5 output")
-            try:
-                el_ty_h5 = _type_to_hdf5[el_ty]
-            except KeyError:
-                raise TypeError("List element type {} is not supported for"
-                                " HDF5 output".format(el_ty))
-            dataset = f.create_dataset(name, (len(data), ), el_ty_h5)
-            dataset[:] = data
-        elif isinstance(data, numpy.ndarray):
-            f.create_dataset(name, data=data)
-        else:
-            ty = type(data)
-            try:
-                ty_h5 = _type_to_hdf5[ty]
-            except KeyError:
-                raise TypeError("Type {} is not supported for HDF5 output"
-                                .format(ty))
-            dataset = f.create_dataset(name, (), ty_h5)
-            dataset[()] = data
-
-
-class RTResults:
-    def __init__(self):
-        self.groups = Notifier(dict())
-        self.current_group = "default"
-
-    def init(self, description):
-        data = dict()
-        for rtr in description.keys():
-            if isinstance(rtr, tuple):
-                for e in rtr:
-                    data[e] = []
-            else:
-                data[rtr] = []
-        self.groups[self.current_group] = {
-            "description": description,
-            "data": data
-        }
-
-    def update(self, mod):
-        target = self.groups[self.current_group]["data"]
-        process_mod(target, mod)

artiq/master/scheduler.py

@@ -4,7 +4,8 @@ from enum import Enum
 from time import time
 
 from artiq.master.worker import Worker
-from artiq.tools import asyncio_wait_or_cancel, asyncio_queue_peek
+from artiq.tools import (asyncio_wait_or_cancel, asyncio_queue_peek,
+                         TaskObject, WaitSet)
 from artiq.protocols.sync_struct import Notifier
 
 
@@ -13,27 +14,28 @@ logger = logging.getLogger(__name__)
 
 class RunStatus(Enum):
     pending = 0
-    preparing = 1
-    prepare_done = 2
-    running = 3
-    run_done = 4
-    analyzing = 5
-    analyze_done = 6
-    paused = 7
+    flushing = 1
+    preparing = 2
+    prepare_done = 3
+    running = 4
+    run_done = 5
+    analyzing = 6
+    analyze_done = 7
+    paused = 8
 
 
 def _mk_worker_method(name):
     @asyncio.coroutine
     def worker_method(self, *args, **kwargs):
-        if self._terminated:
+        if self.worker.closed.is_set():
             return True
-        m = getattr(self._worker, name)
+        m = getattr(self.worker, name)
         try:
             return (yield from m(*args, **kwargs))
         except Exception as e:
             if isinstance(e, asyncio.CancelledError):
                 raise
-            if self._terminated:
+            if self.worker.closed.is_set():
                 logger.debug("suppressing worker exception of terminated run",
                              exc_info=True)
                 # Return completion on termination
@@ -45,7 +47,7 @@ def _mk_worker_method(name):
 
 class Run:
     def __init__(self, rid, pipeline_name,
-                 expid, priority, due_date,
+                 expid, priority, due_date, flush,
                  worker_handlers, notifier):
         # called through pool
         self.rid = rid
@@ -53,10 +55,11 @@ class Run:
         self.expid = expid
         self.priority = priority
         self.due_date = due_date
+        self.flush = flush
+
+        self.worker = Worker(worker_handlers)
 
         self._status = RunStatus.pending
-        self._terminated = False
-        self._worker = Worker(worker_handlers)
 
         self._notifier = notifier
         self._notifier[self.rid] = {
@@ -64,6 +67,7 @@ class Run:
             "expid": self.expid,
             "priority": self.priority,
             "due_date": self.due_date,
+            "flush": self.flush,
             "status": self._status.name
         }
 
@@ -74,33 +78,35 @@ class Run:
     @status.setter
     def status(self, value):
         self._status = value
-        if not self._terminated:
+        if not self.worker.closed.is_set():
             self._notifier[self.rid]["status"] = self._status.name
 
     # The run with the largest priority_key is to be scheduled first
-    def priority_key(self, now):
+    def priority_key(self, now=None):
         if self.due_date is None:
-            overdue = 0
             due_date_k = 0
         else:
-            overdue = int(now > self.due_date)
             due_date_k = -self.due_date
-        return (overdue, self.priority, due_date_k, -self.rid)
+        if now is not None and self.due_date is not None:
+            runnable = int(now > self.due_date)
+        else:
+            runnable = 1
+        return (runnable, self.priority, due_date_k, -self.rid)
 
     @asyncio.coroutine
     def close(self):
         # called through pool
-        self._terminated = True
-        yield from self._worker.close()
+        yield from self.worker.close()
         del self._notifier[self.rid]
 
-    _prepare = _mk_worker_method("prepare")
+    _build = _mk_worker_method("build")
 
     @asyncio.coroutine
-    def prepare(self):
-        yield from self._prepare(self.rid, self.pipeline_name, self.expid,
+    def build(self):
+        yield from self._build(self.rid, self.pipeline_name, self.expid,
                                self.priority)
 
+    prepare = _mk_worker_method("prepare")
     run = _mk_worker_method("run")
     resume = _mk_worker_method("resume")
     analyze = _mk_worker_method("analyze")
@@ -120,20 +126,20 @@ class RIDCounter:
 class RunPool:
     def __init__(self, ridc, worker_handlers, notifier):
         self.runs = dict()
-        self.submitted_callback = None
+        self.submitted_cb = None
 
         self._ridc = ridc
         self._worker_handlers = worker_handlers
         self._notifier = notifier
 
-    def submit(self, expid, priority, due_date, pipeline_name):
+    def submit(self, expid, priority, due_date, flush, pipeline_name):
         # called through scheduler
         rid = self._ridc.get()
-        run = Run(rid, pipeline_name, expid, priority, due_date,
+        run = Run(rid, pipeline_name, expid, priority, due_date, flush,
                   self._worker_handlers, self._notifier)
         self.runs[rid] = run
-        if self.submitted_callback is not None:
-            self.submitted_callback()
+        if self.submitted_cb is not None:
+            self.submitted_cb()
         return rid
 
     @asyncio.coroutine
@@ -145,29 +151,15 @@ class RunPool:
         del self.runs[rid]
 
 
-class TaskObject:
-    def start(self):
-        self.task = asyncio.async(self._do())
-
-    @asyncio.coroutine
-    def stop(self):
-        self.task.cancel()
-        yield from asyncio.wait([self.task])
-        del self.task
-
-    @asyncio.coroutine
-    def _do(self):
-        raise NotImplementedError
-
-
 class PrepareStage(TaskObject):
-    def __init__(self, deleter, pool, outq):
-        self.deleter = deleter
+    def __init__(self, flush_tracker, delete_cb, pool, outq):
+        self.flush_tracker = flush_tracker
+        self.delete_cb = delete_cb
         self.pool = pool
         self.outq = outq
 
         self.pool_submitted = asyncio.Event()
-        self.pool.submitted_callback = lambda: self.pool_submitted.set()
+        self.pool.submitted_cb = lambda: self.pool_submitted.set()
 
     @asyncio.coroutine
     def _push_runs(self):
@@ -186,14 +178,24 @@ class PrepareStage(TaskObject):
                 # pending_runs is an empty sequence
                 return None
             if run.due_date is None or run.due_date < now:
+                if run.flush:
+                    run.status = RunStatus.flushing
+                    yield from asyncio_wait_or_cancel(
+                        [self.flush_tracker.wait_empty(),
+                         run.worker.closed.wait()],
+                        return_when=asyncio.FIRST_COMPLETED)
+                    if run.worker.closed.is_set():
+                        continue
                 run.status = RunStatus.preparing
+                self.flush_tracker.add(run.rid)
                 try:
+                    yield from run.build()
                     yield from run.prepare()
                 except:
                     logger.warning("got worker exception in prepare stage, "
                                    "deleting RID %d",
                                    run.rid, exc_info=True)
-                    self.deleter.delete(run.rid)
+                    self.delete_cb(run.rid)
                 run.status = RunStatus.prepare_done
                 yield from self.outq.put(run)
             else:
@@ -214,8 +216,8 @@ class PrepareStage(TaskObject):
 
 
 class RunStage(TaskObject):
-    def __init__(self, deleter, inq, outq):
-        self.deleter = deleter
+    def __init__(self, delete_cb, inq, outq):
+        self.delete_cb = delete_cb
         self.inq = inq
         self.outq = outq
 
@@ -228,10 +230,9 @@ class RunStage(TaskObject):
                 next_irun = asyncio_queue_peek(self.inq)
             except asyncio.QueueEmpty:
                 next_irun = None
-            now = time()
             if not stack or (
                     next_irun is not None and
-                    next_irun.priority_key(now) > stack[-1].priority_key(now)):
+                    next_irun.priority_key() > stack[-1].priority_key()):
                 stack.append((yield from self.inq.get()))
 
             run = stack.pop()
@@ -246,7 +247,7 @@ class RunStage(TaskObject):
                 logger.warning("got worker exception in run stage, "
                                "deleting RID %d",
                                run.rid, exc_info=True)
-                self.deleter.delete(run.rid)
+                self.delete_cb(run.rid)
             else:
                 if completed:
                     run.status = RunStatus.run_done
@@ -257,8 +258,8 @@ class RunStage(TaskObject):
 
 
 class AnalyzeStage(TaskObject):
-    def __init__(self, deleter, inq):
-        self.deleter = deleter
+    def __init__(self, delete_cb, inq):
+        self.delete_cb = delete_cb
         self.inq = inq
 
     @asyncio.coroutine
@@ -273,17 +274,23 @@ class AnalyzeStage(TaskObject):
                 logger.warning("got worker exception in analyze stage, "
                                "deleting RID %d",
                                run.rid, exc_info=True)
-                self.deleter.delete(run.rid)
+                self.delete_cb(run.rid)
             run.status = RunStatus.analyze_done
-            self.deleter.delete(run.rid)
+            self.delete_cb(run.rid)
 
 
 class Pipeline:
     def __init__(self, ridc, deleter, worker_handlers, notifier):
+        flush_tracker = WaitSet()
+        def delete_cb(rid):
+            deleter.delete(rid)
+            flush_tracker.discard(rid)
         self.pool = RunPool(ridc, worker_handlers, notifier)
-        self._prepare = PrepareStage(deleter, self.pool, asyncio.Queue(maxsize=1))
-        self._run = RunStage(deleter, self._prepare.outq, asyncio.Queue(maxsize=1))
-        self._analyze = AnalyzeStage(deleter, self._run.outq)
+        self._prepare = PrepareStage(flush_tracker, delete_cb,
+                                     self.pool, asyncio.Queue(maxsize=1))
+        self._run = RunStage(delete_cb,
+                             self._prepare.outq, asyncio.Queue(maxsize=1))
+        self._analyze = AnalyzeStage(delete_cb, self._run.outq)
 
     def start(self):
         self._prepare.start()
@@ -366,7 +373,7 @@ class Scheduler:
         if self._pipelines:
             logger.warning("some pipelines were not garbage-collected")
 
-    def submit(self, pipeline_name, expid, priority, due_date):
+    def submit(self, pipeline_name, expid, priority, due_date, flush):
         if self._terminated:
             return
         try:
@@ -377,7 +384,7 @@ class Scheduler:
                                 self._worker_handlers, self.notifier)
             self._pipelines[pipeline_name] = pipeline
             pipeline.start()
-        return pipeline.pool.submit(expid, priority, due_date, pipeline_name)
+        return pipeline.pool.submit(expid, priority, due_date, flush, pipeline_name)
 
     def delete(self, rid):
         self._deleter.delete(rid)

artiq/master/worker.py

@@ -4,10 +4,11 @@ import logging
 import subprocess
 import traceback
 import time
+from functools import partial
 
 from artiq.protocols import pyon
-from artiq.language.units import strip_unit
-from artiq.tools import asyncio_process_wait_timeout, asyncio_wait_or_cancel
+from artiq.tools import (asyncio_process_wait_timeout, asyncio_process_wait,
+                         asyncio_wait_or_cancel)
 
 
 logger = logging.getLogger(__name__)
@@ -26,14 +27,9 @@ class WorkerError(Exception):
 
 
 class Worker:
-    def __init__(self, handlers,
-                 send_timeout=0.5, term_timeout=1.0,
-                 prepare_timeout=15.0, results_timeout=15.0):
+    def __init__(self, handlers=dict(), send_timeout=0.5):
         self.handlers = handlers
         self.send_timeout = send_timeout
-        self.term_timeout = term_timeout
-        self.prepare_timeout = prepare_timeout
-        self.results_timeout = results_timeout
 
         self.rid = None
         self.process = None
@@ -49,7 +45,7 @@ class Worker:
         avail = set(range(n_user_watchdogs + 1)) \
             - set(self.watchdogs.keys())
         wid = next(iter(avail))
-        self.watchdogs[wid] = time.monotonic() + strip_unit(t, "s")
+        self.watchdogs[wid] = time.monotonic() + t
         return wid
 
     def delete_watchdog(self, wid):
@@ -74,7 +70,12 @@ class Worker:
             self.io_lock.release()
 
     @asyncio.coroutine
-    def close(self):
+    def close(self, term_timeout=1.0):
+        """Interrupts any I/O with the worker process and terminates the
+        worker process.
+
+        This method should always be called by the user to clean up, even if
+        build() or examine() raises an exception."""
         self.closed.set()
         yield from self.io_lock.acquire()
         try:
@@ -83,33 +84,35 @@ class Worker:
                 logger.debug("worker was not created (RID %s)", self.rid)
                 return
             if self.process.returncode is not None:
-                logger.debug("worker already terminated (RID %d)", self.rid)
+                logger.debug("worker already terminated (RID %s)", self.rid)
                 if self.process.returncode != 0:
                     logger.warning("worker finished with status code %d"
-                                   " (RID %d)", self.process.returncode,
+                                   " (RID %s)", self.process.returncode,
                                    self.rid)
                 return
             obj = {"action": "terminate"}
             try:
-                yield from self._send(obj, self.send_timeout, cancellable=False)
+                yield from self._send(obj, cancellable=False)
             except:
                 logger.warning("failed to send terminate command to worker"
-                               " (RID %d), killing", self.rid, exc_info=True)
+                               " (RID %s), killing", self.rid, exc_info=True)
                 self.process.kill()
+                yield from asyncio_process_wait(self.process)
                 return
             try:
                 yield from asyncio_process_wait_timeout(self.process,
-                                                        self.term_timeout)
+                                                        term_timeout)
             except asyncio.TimeoutError:
-                logger.warning("worker did not exit (RID %d), killing", self.rid)
+                logger.warning("worker did not exit (RID %s), killing", self.rid)
                 self.process.kill()
+                yield from asyncio_process_wait(self.process)
             else:
-                logger.debug("worker exited gracefully (RID %d)", self.rid)
+                logger.debug("worker exited gracefully (RID %s)", self.rid)
         finally:
             self.io_lock.release()
 
     @asyncio.coroutine
-    def _send(self, obj, timeout, cancellable=True):
+    def _send(self, obj, cancellable=True):
         assert self.io_lock.locked()
         line = pyon.encode(obj)
         self.process.stdin.write(line.encode())
@@ -118,7 +121,7 @@ class Worker:
         if cancellable:
             ifs.append(self.closed.wait())
         fs = yield from asyncio_wait_or_cancel(
-            ifs, timeout=timeout,
+            ifs, timeout=self.send_timeout,
             return_when=asyncio.FIRST_COMPLETED)
         if all(f.cancelled() for f in fs):
             raise WorkerTimeout("Timeout sending data to worker")
@@ -135,7 +138,7 @@ class Worker:
             [self.process.stdout.readline(), self.closed.wait()],
             timeout=timeout, return_when=asyncio.FIRST_COMPLETED)
         if all(f.cancelled() for f in fs):
-            raise WorkerTimeout("Timeout sending data to worker")
+            raise WorkerTimeout("Timeout receiving data from worker")
         if self.closed.is_set():
             raise WorkerError("Data transmission to worker cancelled")
         line = fs[0].result()
@@ -168,8 +171,12 @@ class Worker:
                 func = self.create_watchdog
             elif action == "delete_watchdog":
                 func = self.delete_watchdog
+            elif action == "register_experiment":
+                func = self.register_experiment
             else:
                 func = self.handlers[action]
+            if getattr(func, "worker_pass_rid", False):
+                func = partial(func, self.rid)
             try:
                 data = func(**obj)
                 reply = {"status": "ok", "data": data}
@@ -178,7 +185,7 @@ class Worker:
                          "message": traceback.format_exc()}
             yield from self.io_lock.acquire()
             try:
-                yield from self._send(reply, self.send_timeout)
+                yield from self._send(reply)
             finally:
                 self.io_lock.release()
 
@@ -189,7 +196,7 @@ class Worker:
         try:
             yield from self.io_lock.acquire()
             try:
-                yield from self._send(obj, self.send_timeout)
+                yield from self._send(obj)
             finally:
                 self.io_lock.release()
             try:
@@ -202,16 +209,20 @@ class Worker:
         return completed
 
     @asyncio.coroutine
-    def prepare(self, rid, pipeline_name, expid, priority):
+    def build(self, rid, pipeline_name, expid, priority, timeout=15.0):
         self.rid = rid
         yield from self._create_process()
         yield from self._worker_action(
-            {"action": "prepare",
+            {"action": "build",
              "rid": rid,
              "pipeline_name": pipeline_name,
              "expid": expid,
              "priority": priority},
-            self.prepare_timeout)
+            timeout)
+
+    @asyncio.coroutine
+    def prepare(self):
+        yield from self._worker_action({"action": "prepare"})
 
     @asyncio.coroutine
     def run(self):
@@ -236,6 +247,18 @@ class Worker:
         yield from self._worker_action({"action": "analyze"})
 
     @asyncio.coroutine
-    def write_results(self):
+    def write_results(self, timeout=15.0):
         yield from self._worker_action({"action": "write_results"},
-                                       self.results_timeout)
+                                       timeout)
+
+    @asyncio.coroutine
+    def examine(self, file, timeout=20.0):
+        yield from self._create_process()
+        r = dict()
+        def register(class_name, name, arguments):
+            r[class_name] = {"name": name, "arguments": arguments}
+        self.register_experiment = register
+        yield from self._worker_action({"action": "examine",
+                                        "file": file}, timeout)
+        del self.register_experiment
+        return r

artiq/master/worker_db.py

@@ -1,76 +1,114 @@
 from collections import OrderedDict
 import importlib
 import logging
+import os
+import time
+import re
+
+import numpy
+import h5py
 
 from artiq.protocols.sync_struct import Notifier
 from artiq.protocols.pc_rpc import Client, BestEffortClient
-from artiq.master.results import result_dict_to_hdf5
 
 
 logger = logging.getLogger(__name__)
 
 
-class ResultDB:
-    def __init__(self, init_rt_results, update_rt_results):
-        self.init_rt_results = init_rt_results
-        self.update_rt_results = update_rt_results
-        self.rtr_description = dict()
+def get_hdf5_output(start_time, rid, name):
+    dirname = os.path.join("results",
+                           time.strftime("%Y-%m-%d", start_time),
+                           time.strftime("%H-%M", start_time))
+    filename = "{:09}-{}.h5".format(rid, name)
+    os.makedirs(dirname, exist_ok=True)
+    return h5py.File(os.path.join(dirname, filename), "w")
 
-    def add_rt_results(self, rtr_description):
-        intr = set(self.rtr_description.keys()).intersection(
-            set(rtr_description.keys()))
-        if intr:
-            raise ValueError("Duplicate realtime results: " + ", ".join(intr))
-        self.rtr_description.update(rtr_description)
 
-    def build(self):
-        realtime_results_set = set()
-        for rtr in self.rtr_description.keys():
-            if isinstance(rtr, tuple):
-                for e in rtr:
-                    realtime_results_set.add(e)
-            else:
-                realtime_results_set.add(rtr)
-
-        self.realtime_data = Notifier({x: [] for x in realtime_results_set})
-        self.data = Notifier(dict())
-
-        self.init_rt_results(self.rtr_description)
-        self.realtime_data.publish = lambda notifier, data: \
-            self.update_rt_results(data)
-
-    def _request(self, name):
+def get_last_rid():
+    r = -1
     try:
-            return self.realtime_data[name]
-        except KeyError:
+        day_folders = os.listdir("results")
+    except:
+        return r
+    day_folders = filter(lambda x: re.fullmatch('\d\d\d\d-\d\d-\d\d', x),
+                         day_folders)
+    for df in day_folders:
+        day_path = os.path.join("results", df)
         try:
-                return self.data[name]
-            except KeyError:
-                self.data[name] = []
-                return self.data[name]
-
-    def request(self, name):
-        r = self._request(name)
-        r.kernel_attr_init = False
+            minute_folders = os.listdir(day_path)
+        except:
+            continue
+        minute_folders = filter(lambda x: re.fullmatch('\d\d-\d\d', x),
+                                          minute_folders)
+        for mf in minute_folders:
+            minute_path = os.path.join(day_path, mf)
+            try:
+                h5files = os.listdir(minute_path)
+            except:
+                continue
+            for x in h5files:
+                m = re.fullmatch('(\d\d\d\d\d\d\d\d\d)-.*\.h5', x)
+                rid = int(m.group(1))
+                if rid > r:
+                    r = rid
     return r
 
-    def set(self, name, value):
-        if name in self.realtime_data.read:
-            self.realtime_data[name] = value
+
+_type_to_hdf5 = {
+    int: h5py.h5t.STD_I64BE,
+    float: h5py.h5t.IEEE_F64BE
+}
+
+def result_dict_to_hdf5(f, rd):
+    for name, data in rd.items():
+        if isinstance(data, list):
+            el_ty = type(data[0])
+            for d in data:
+                if type(d) != el_ty:
+                    raise TypeError("All list elements must have the same"
+                                    " type for HDF5 output")
+            try:
+                el_ty_h5 = _type_to_hdf5[el_ty]
+            except KeyError:
+                raise TypeError("List element type {} is not supported for"
+                                " HDF5 output".format(el_ty))
+            dataset = f.create_dataset(name, (len(data), ), el_ty_h5)
+            dataset[:] = data
+        elif isinstance(data, numpy.ndarray):
+            f.create_dataset(name, data=data)
         else:
-            self.data[name] = value
+            ty = type(data)
+            try:
+                ty_h5 = _type_to_hdf5[ty]
+            except KeyError:
+                raise TypeError("Type {} is not supported for HDF5 output"
+                                .format(ty))
+            dataset = f.create_dataset(name, (), ty_h5)
+            dataset[()] = data
+
+
+class ResultDB:
+    def __init__(self):
+        self.rt = Notifier(dict())
+        self.nrt = dict()
+
+    def get(self, key):
+        try:
+            return self.nrt[key]
+        except KeyError:
+            return self.rt[key].read
 
     def write_hdf5(self, f):
-        result_dict_to_hdf5(f, self.realtime_data.read)
-        result_dict_to_hdf5(f, self.data.read)
+        result_dict_to_hdf5(f, self.rt.read)
+        result_dict_to_hdf5(f, self.nrt)
 
 
-def _create_device(desc, dbh):
+def _create_device(desc, dmgr):
     ty = desc["type"]
     if ty == "local":
         module = importlib.import_module(desc["module"])
         device_class = getattr(module, desc["class"])
-        return device_class(dbh, **desc["arguments"])
+        return device_class(dmgr, **desc["arguments"])
     elif ty == "controller":
         if desc["best_effort"]:
             cl = BestEffortClient
@@ -81,30 +119,26 @@ def _create_device(desc, dbh):
         raise ValueError("Unsupported type in device DB: " + ty)
 
 
-class DBHub:
-    """Connects device, parameter and result databases to experiment.
-    Handle device driver creation and destruction.
-    """
-    def __init__(self, ddb, pdb, rdb, read_only=False):
+class DeviceManager:
+    """Handles creation and destruction of local device drivers and controller
+    RPC clients."""
+    def __init__(self, ddb, virtual_devices=dict()):
         self.ddb = ddb
+        self.virtual_devices = virtual_devices
         self.active_devices = OrderedDict()
 
-        self.get_parameter = pdb.request
-
-        if not read_only:
-            self.set_parameter = pdb.set
-            self.add_rt_results = rdb.add_rt_results
-            self.get_result = rdb.request
-            self.set_result = rdb.set
-
-    def get_device(self, name):
+    def get(self, name):
+        """Get the device driver or controller client corresponding to a
+        device database entry."""
+        if name in self.virtual_devices:
+            return self.virtual_devices[name]
         if name in self.active_devices:
             return self.active_devices[name]
         else:
-            desc = self.ddb.request(name)
+            desc = self.ddb.get(name)
             while isinstance(desc, str):
                 # alias
-                desc = self.ddb.request(desc)
+                desc = self.ddb.get(desc)
             dev = _create_device(desc, self)
             self.active_devices[name] = dev
             return dev

artiq/master/worker_impl.py

@@ -3,9 +3,8 @@ import time
 
 from artiq.protocols import pyon
 from artiq.tools import file_import
-from artiq.master.worker_db import DBHub, ResultDB
-from artiq.master.results import get_hdf5_output
-from artiq.language.experiment import is_experiment
+from artiq.master.worker_db import DeviceManager, ResultDB, get_hdf5_output
+from artiq.language.environment import is_experiment
 from artiq.language.core import set_watchdog_factory
 
 
@@ -45,16 +44,34 @@ def make_parent_action(action, argnames, exception=ParentActionError):
     return parent_action
 
 
+
+
+class LogForwarder:
+    def __init__(self):
+        self.buffer = ""
+
+    to_parent = staticmethod(make_parent_action("log", "message"))
+
+    def write(self, data):
+        self.buffer += data
+        while "\n" in self.buffer:
+            i = self.buffer.index("\n")
+            self.to_parent(self.buffer[:i])
+            self.buffer = self.buffer[i+1:]
+
+    def flush(self):
+        pass
+
+
 class ParentDDB:
-    request = make_parent_action("req_device", "name", KeyError)
+    get = make_parent_action("get_device", "name", KeyError)
 
 
 class ParentPDB:
-    request = make_parent_action("req_parameter", "name", KeyError)
+    get = make_parent_action("get_parameter", "name", KeyError)
     set = make_parent_action("set_parameter", "name value")
 
 
-init_rt_results = make_parent_action("init_rt_results", "description")
 update_rt_results = make_parent_action("update_rt_results", "mod")
 
 
@@ -79,18 +96,18 @@ class Scheduler:
     pause = staticmethod(make_parent_action("pause", ""))
 
     submit = staticmethod(make_parent_action("scheduler_submit",
-        "pipeline_name expid priority due_date"))
+        "pipeline_name expid priority due_date flush"))
     cancel = staticmethod(make_parent_action("scheduler_cancel", "rid"))
 
-    def __init__(self, pipeline_name, expid, priority):
+    def set_run_info(self, pipeline_name, expid, priority):
         self.pipeline_name = pipeline_name
         self.expid = expid
         self.priority = priority
 
 
-def get_exp(file, exp):
+def get_exp(file, class_name):
     module = file_import(file)
-    if exp is None:
+    if class_name is None:
         exps = [v for k, v in module.__dict__.items()
                 if is_experiment(v)]
         if len(exps) != 1:
@@ -98,11 +115,44 @@ def get_exp(file, exp):
                              .format(len(exps)))
         return exps[0]
     else:
-        return getattr(module, exp)
+        return getattr(module, class_name)
+
+
+register_experiment = make_parent_action("register_experiment",
+                                         "class_name name arguments")
+
+
+class DummyDMGR:
+    def get(self, name):
+        return None
+
+
+class DummyPDB:
+    def get(self, name):
+        return None
+
+    def set(self, name, value):
+        pass
+
+
+def examine(dmgr, pdb, rdb, file):
+    module = file_import(file)
+    for class_name, exp_class in module.__dict__.items():
+        if is_experiment(exp_class):
+            if exp_class.__doc__ is None:
+                name = class_name
+            else:
+                name = exp_class.__doc__.splitlines()[0].strip()
+                if name[-1] == ".":
+                    name = name[:-1]
+            exp_inst = exp_class(dmgr, pdb, rdb, default_arg_none=True)
+            arguments = [(k, v.describe())
+                         for k, v in exp_inst.requested_args.items()]
+            register_experiment(class_name, name, arguments)
 
 
 def main():
-    sys.stdout = sys.stderr
+    sys.stdout = sys.stderr = LogForwarder()
 
     start_time = None
     rid = None
@@ -110,26 +160,27 @@ def main():
     exp = None
     exp_inst = None
 
-    rdb = ResultDB(init_rt_results, update_rt_results)
-    dbh = DBHub(ParentDDB, ParentPDB, rdb)
+    dmgr = DeviceManager(ParentDDB,
+                         virtual_devices={"scheduler": Scheduler()})
+    rdb = ResultDB()
+    rdb.rt.publish = update_rt_results
 
     try:
         while True:
             obj = get_object()
             action = obj["action"]
-            if action == "prepare":
+            if action == "build":
                 start_time = time.localtime()
                 rid = obj["rid"]
-                pipeline_name = obj["pipeline_name"]
                 expid = obj["expid"]
-                priority = obj["priority"]
-                exp = get_exp(expid["file"], expid["experiment"])
-                exp_inst = exp(dbh,
-                               scheduler=Scheduler(pipeline_name,
-                                                   expid,
-                                                   priority),
+                exp = get_exp(expid["file"], expid["class_name"])
+                dmgr.virtual_devices["scheduler"].set_run_info(
+                    obj["pipeline_name"], expid, obj["priority"])
+                exp_inst = exp(dmgr, ParentPDB, rdb,
                     **expid["arguments"])
-                rdb.build()
+                put_object({"action": "completed"})
+            elif action == "prepare":
+                exp_inst.prepare()
                 put_object({"action": "completed"})
             elif action == "run":
                 exp_inst.run()
@@ -144,10 +195,13 @@ def main():
                 finally:
                     f.close()
                 put_object({"action": "completed"})
+            elif action == "examine":
+                examine(DummyDMGR(), DummyPDB(), ResultDB(), obj["file"])
+                put_object({"action": "completed"})
             elif action == "terminate":
                 break
     finally:
-        dbh.close_devices()
+        dmgr.close_devices()
 
 if __name__ == "__main__":
     main()

artiq/protocols/file_db.py

@@ -20,7 +20,7 @@ class FlatFileDB:
     def save(self):
         pyon.store_file(self.filename, self.data.read)
 
-    def request(self, name):
+    def get(self, name):
         return self.data.read[name]
 
     def set(self, name, value):
@@ -36,19 +36,3 @@ class FlatFileDB:
         timestamp = time()
         for hook in self.hooks:
             hook.delete(timestamp, name)
-
-
-class SimpleHistory:
-    def __init__(self, depth):
-        self.depth = depth
-        self.history = Notifier([])
-
-    def set(self, timestamp, name, value):
-        if len(self.history.read) >= self.depth:
-            del self.history[0]
-        self.history.append((timestamp, name, value))
-
-    def delete(self, timestamp, name):
-        if len(self.history.read) >= self.depth:
-            del self.history[0]
-        self.history.append((timestamp, name))

artiq/protocols/fire_and_forget.py

@@ -0,0 +1,45 @@
+import threading
+import logging
+
+
+logger = logging.getLogger(__name__)
+
+
+class FFProxy:
+    """Proxies a target object and runs its methods in the background.
+
+    All method calls to this object are forwarded to the target and executed
+    in a background thread. Method calls return immediately. Exceptions from
+    the target method are turned into warnings. At most one method from the
+    target object may be executed in the background; if a new call is
+    submitted while the previous one is still executing, a warning is printed
+    and the new call is dropped.
+
+    This feature is typically used to wrap slow and non-critical RPCs in
+    experiments.
+    """
+    def __init__(self, target):
+        self.target = target
+        self._thread = None
+
+    def ff_join(self):
+        """Waits until any background method finishes its execution."""
+        if self._thread is not None:
+            self._thread.join()
+
+    def __getattr__(self, k):
+        def run_in_thread(*args, **kwargs):
+            if self._thread is not None and self._thread.is_alive():
+                logger.warning("skipping fire-and-forget call to %r.%s as "
+                               "previous call did not complete",
+                               self.target, k)
+                return
+            def thread_body():
+                try:
+                    getattr(self.target, k)(*args, **kwargs)
+                except:
+                    logger.warning("fire-and-forget call to %r.%s raised an "
+                                   "exception:", self.target, k, exc_info=True)
+            self._thread = threading.Thread(target=thread_body)
+            self._thread.start()
+        return run_in_thread

artiq/protocols/pc_rpc.py

@@ -22,7 +22,6 @@ import inspect
 
 from artiq.protocols import pyon
 from artiq.protocols.asyncio_server import AsyncioServer as _AsyncioServer
-from artiq.tools import format_arguments
 
 
 logger = logging.getLogger(__name__)
@@ -246,7 +245,8 @@ class AsyncioClient:
     def __getattr__(self, name):
         @asyncio.coroutine
         def proxy(*args, **kwargs):
-            return self.__do_rpc(name, args, kwargs)
+            res = yield from self.__do_rpc(name, args, kwargs)
+            return res
         return proxy
 
 
@@ -374,6 +374,16 @@ class BestEffortClient:
         return proxy
 
 
+def _format_arguments(arguments):
+    fmtargs = []
+    for k, v in sorted(arguments.items(), key=itemgetter(0)):
+        fmtargs.append(k + "=" + repr(v))
+    if fmtargs:
+        return ", ".join(fmtargs)
+    else:
+        return ""
+
+
 class _PrettyPrintCall:
     def __init__(self, obj):
         self.obj = obj
@@ -382,7 +392,7 @@ class _PrettyPrintCall:
         r = self.obj["name"] + "("
         args = ", ".join([repr(a) for a in self.obj["args"]])
         r += args
-        kwargs = format_arguments(self.obj["kwargs"])
+        kwargs = _format_arguments(self.obj["kwargs"])
         if args and kwargs:
             r += ", "
         r += kwargs
@@ -442,15 +452,18 @@ class Server(_AsyncioServer):
                 try:
                     if obj["action"] == "get_rpc_method_list":
                         members = inspect.getmembers(target, inspect.ismethod)
-                        methods = {}
+                        doc = {
+                            "docstring": inspect.getdoc(target),
+                            "methods": {}
+                        }
                         for name, method in members:
                             if name.startswith("_"):
                                 continue
                             method = getattr(target, name)
                             argspec = inspect.getfullargspec(method)
-                            methods[name] = (dict(argspec.__dict__),
+                            doc["methods"][name] = (dict(argspec.__dict__),
                                                     inspect.getdoc(method))
-                        obj = {"status": "ok", "ret": methods}
+                        obj = {"status": "ok", "ret": doc}
                     elif obj["action"] == "call":
                         logger.debug("calling %s", _PrettyPrintCall(obj))
                         method = getattr(target, obj["name"])

artiq/protocols/pyon.py

@@ -14,7 +14,6 @@ The main rationale for this new custom serializer (instead of using JSON) is
 that JSON does not support Numpy and more generally cannot be extended with
 other data types while keeping a concise syntax. Here we can use the Python
 function call syntax to mark special data types.
-
 """
 
 
@@ -25,8 +24,6 @@ import tempfile
 
 import numpy
 
-from artiq.language.units import Quantity
-
 
 _encode_map = {
     type(None): "none",
@@ -39,7 +36,6 @@ _encode_map = {
     list: "list",
     dict: "dict",
     Fraction: "fraction",
-    Quantity: "quantity",
     numpy.ndarray: "nparray"
 }
 
@@ -110,10 +106,6 @@ class _Encoder:
         return "Fraction({}, {})".format(encode(x.numerator),
                                          encode(x.denominator))
 
-    def encode_quantity(self, x):
-        return "Quantity({}, {})".format(encode(x.amount),
-                                         encode(x.unit))
-
     def encode_nparray(self, x):
         r = "nparray("
         r += encode(x.shape) + ", "
@@ -147,7 +139,6 @@ _eval_dict = {
     "true": True,
 
     "Fraction": Fraction,
-    "Quantity": Quantity,
     "nparray": _nparray
 }
 

artiq/protocols/sync_struct.py

@@ -8,11 +8,11 @@ describing each modification made to the structure (*mods*).
 
 Structures must be PYON serializable and contain only lists, dicts, and
 immutable types. Lists and dicts can be nested arbitrarily.
-
 """
 
 import asyncio
 from operator import getitem
+from functools import partial
 
 from artiq.protocols import pyon
 from artiq.protocols.asyncio_server import AsyncioServer
@@ -22,9 +22,7 @@ _init_string = b"ARTIQ sync_struct\n"
 
 
 def process_mod(target, mod):
-    """Apply a *mod* to the target, mutating it.
-
-    """
+    """Apply a *mod* to the target, mutating it."""
     for key in mod["path"]:
         target = getitem(target, key)
     action = mod["action"]
@@ -52,8 +50,8 @@ class Subscriber:
         Multiple functions can be specified in a list for the ``Subscriber``
         to update several local objects simultaneously.
     :param notify_cb: An optional function called every time a mod is received
-        from the publisher. The mod is passed as parameter.
-
+        from the publisher. The mod is passed as parameter. The function is
+        called after the mod has been processed.
     """
     def __init__(self, notifier_name, target_builder, notify_cb=None):
         self.notifier_name = notifier_name
@@ -133,7 +131,6 @@ class Notifier:
 
     :param backing_struct: Structure to encapsulate. For convenience, it
         also becomes available as the ``read`` property of the ``Notifier``.
-
     """
     def __init__(self, backing_struct, root=None, path=[]):
         self.read = backing_struct
@@ -149,34 +146,28 @@ class Notifier:
     # All modifications must go through them!
 
     def append(self, x):
-        """Append to a list.
-
-        """
+        """Append to a list."""
         self._backing_struct.append(x)
         if self.root.publish is not None:
-            self.root.publish(self.root, {"action": "append",
+            self.root.publish({"action": "append",
                                "path": self._path,
                                "x": x})
 
     def insert(self, i, x):
-        """Insert an element into a list.
-
-        """
+        """Insert an element into a list."""
         self._backing_struct.insert(i, x)
         if self.root.publish is not None:
-            self.root.publish(self.root, {"action": "insert",
+            self.root.publish({"action": "insert",
                                "path": self._path,
                                "i": i, "x": x})
 
     def pop(self, i=-1):
         """Pop an element from a list. The returned element is not
         encapsulated in a ``Notifier`` and its mutations are no longer
-        tracked.
-
-        """
+        tracked."""
         r = self._backing_struct.pop(i)
         if self.root.publish is not None:
-            self.root.publish(self.root, {"action": "pop",
+            self.root.publish({"action": "pop",
                                "path": self._path,
                                "i": i})
         return r
@@ -184,7 +175,7 @@ class Notifier:
     def __setitem__(self, key, value):
         self._backing_struct.__setitem__(key, value)
         if self.root.publish is not None:
-            self.root.publish(self.root, {"action": "setitem",
+            self.root.publish({"action": "setitem",
                                "path": self._path,
                                "key": key,
                                "value": value})
@@ -192,7 +183,7 @@ class Notifier:
     def __delitem__(self, key):
         self._backing_struct.__delitem__(key)
         if self.root.publish is not None:
-            self.root.publish(self.root, {"action": "delitem",
+            self.root.publish({"action": "delitem",
                                "path": self._path,
                                "key": key})
 
@@ -208,7 +199,6 @@ class Publisher(AsyncioServer):
     :param notifiers: A dictionary containing the notifiers to associate with
         the ``Publisher``. The keys of the dictionary are the names of the
         notifiers to be used with ``Subscriber``.
-
     """
     def __init__(self, notifiers):
         AsyncioServer.__init__(self)
@@ -217,7 +207,7 @@ class Publisher(AsyncioServer):
         self._notifier_names = {id(v): k for k, v in notifiers.items()}
 
         for notifier in notifiers.values():
-            notifier.publish = self.publish
+            notifier.publish = partial(self.publish, notifier)
 
     @asyncio.coroutine
     def _handle_connection_cr(self, reader, writer):
@@ -256,8 +246,8 @@ class Publisher(AsyncioServer):
         finally:
             writer.close()
 
-    def publish(self, notifier, obj):
-        line = pyon.encode(obj) + "\n"
+    def publish(self, notifier, mod):
+        line = pyon.encode(mod) + "\n"
         line = line.encode()
         notifier_name = self._notifier_names[id(notifier)]
         for recipient in self._recipients[notifier_name]:

artiq/py2llvm_old/__init__.py

@@ -1,6 +1,6 @@
 from artiq.py2llvm.module import Module
 
-def get_runtime_binary(env, func_def):
-    module = Module(env)
+def get_runtime_binary(runtime, func_def):
+    module = Module(runtime)
     module.compile_function(func_def, dict())
     return module.emit_object()

artiq/py2llvm_old/ast_body.py

@@ -1,6 +1,6 @@
 from pythonparser import ast
 
-import llvmlite.ir as ll
+import llvmlite_or1k.ir as ll
 
 from artiq.py2llvm import values, base_types, fractions, lists, iterators
 from artiq.py2llvm.tools import is_terminated
@@ -39,8 +39,8 @@ _ast_cmps = {
 
 
 class Visitor:
-    def __init__(self, env, ns, builder=None):
-        self.env = env
+    def __init__(self, runtime, ns, builder=None):
+        self.runtime = runtime
         self.ns = ns
         self.builder = builder
         self._break_stack = []
@@ -182,7 +182,7 @@ class Visitor:
                 self.builder,
                 [self.visit_expression(arg) for arg in node.args])
         elif fn == "syscall":
-            return self.env.build_syscall(
+            return self.runtime.build_syscall(
                 node.args[0].s,
                 [self.visit_expression(expr) for expr in node.args[1:]],
                 self.builder)
@@ -420,7 +420,7 @@ class Visitor:
     def _break_loop_body(self, target_block):
         exception_levels = self._exception_level_stack[-1]
         if exception_levels:
-            self.env.build_pop(self.builder, exception_levels)
+            self.runtime.build_pop(self.builder, exception_levels)
         self.builder.branch(target_block)
 
     def _visit_stmt_Break(self, node):
@@ -436,7 +436,7 @@ class Visitor:
             val = self.visit_expression(node.value)
         exception_levels = sum(self._exception_level_stack)
         if exception_levels:
-            self.env.build_pop(self.builder, exception_levels)
+            self.runtime.build_pop(self.builder, exception_levels)
         if isinstance(val, base_types.VNone):
             self.builder.ret_void()
         else:
@@ -456,11 +456,11 @@ class Visitor:
             self.builder.branch(finally_block)
         else:
             eid = ll.Constant(ll.IntType(32), node.exc.args[0].n)
-            self.env.build_raise(self.builder, eid)
+            self.runtime.build_raise(self.builder, eid)
 
     def _handle_exception(self, function, finally_block,
                           propagate, propagate_eid, handlers):
-        eid = self.env.build_getid(self.builder)
+        eid = self.runtime.build_getid(self.builder)
         self._active_exception_stack.append(
             (finally_block, propagate, propagate_eid))
         self.builder.store(ll.Constant(ll.IntType(1), 1), propagate)
@@ -509,7 +509,7 @@ class Visitor:
         self.builder.store(ll.Constant(ll.IntType(1), 0), propagate)
         propagate_eid = self.builder.alloca(ll.IntType(32),
                                             name="propagate_eid")
-        exception_occured = self.env.build_catch(self.builder)
+        exception_occured = self.runtime.build_catch(self.builder)
         self.builder.cbranch(exception_occured, exc_block, noexc_block)
 
         self.builder.position_at_end(noexc_block)
@@ -517,7 +517,7 @@ class Visitor:
         self.visit_statements(node.body)
         self._exception_level_stack[-1] -= 1
         if not self._bb_terminated():
-            self.env.build_pop(self.builder, 1)
+            self.runtime.build_pop(self.builder, 1)
             self.visit_statements(node.orelse)
             if not self._bb_terminated():
                 self.builder.branch(finally_block)
@@ -534,6 +534,6 @@ class Visitor:
                 self.builder.load(propagate),
                 propagate_block, merge_block)
         self.builder.position_at_end(propagate_block)
-        self.env.build_raise(self.builder, self.builder.load(propagate_eid))
+        self.runtime.build_raise(self.builder, self.builder.load(propagate_eid))
         self.builder.branch(merge_block)
         self.builder.position_at_end(merge_block)

artiq/py2llvm_old/base_types.py

@@ -1,4 +1,4 @@
-import llvmlite.ir as ll
+import llvmlite_or1k.ir as ll
 
 from artiq.py2llvm.values import VGeneric
 

artiq/py2llvm_old/fractions.py

@@ -1,7 +1,7 @@
 import inspect
 from pythonparser import parse, ast
 
-import llvmlite.ir as ll
+import llvmlite_or1k.ir as ll
 
 from artiq.py2llvm.values import VGeneric, operators
 from artiq.py2llvm.base_types import VBool, VInt, VFloat

artiq/py2llvm_old/lists.py

@@ -1,4 +1,4 @@
-import llvmlite.ir as ll
+import llvmlite_or1k.ir as ll
 
 from artiq.py2llvm.values import VGeneric
 from artiq.py2llvm.base_types import VInt, VNone

artiq/py2llvm_old/module.py

@@ -1,16 +1,16 @@
-import llvmlite.ir as ll
-import llvmlite.binding as llvm
+import llvmlite_or1k.ir as ll
+import llvmlite_or1k.binding as llvm
 
 from artiq.py2llvm import infer_types, ast_body, base_types, fractions, tools
 
 
 class Module:
-    def __init__(self, env=None):
+    def __init__(self, runtime=None):
         self.llvm_module = ll.Module("main")
-        self.env = env
+        self.runtime = runtime
 
-        if self.env is not None:
-            self.env.init_module(self)
+        if self.runtime is not None:
+            self.runtime.init_module(self)
         fractions.init_module(self)
 
     def finalize(self):
@@ -30,10 +30,10 @@ class Module:
 
     def emit_object(self):
         self.finalize()
-        return self.env.emit_object()
+        return self.runtime.emit_object()
 
     def compile_function(self, func_def, param_types):
-        ns = infer_types.infer_function_types(self.env, func_def, param_types)
+        ns = infer_types.infer_function_types(self.runtime, func_def, param_types)
         retval = ns["return"]
 
         function_type = ll.FunctionType(retval.get_llvm_type(),
@@ -50,7 +50,7 @@ class Module:
         for arg_ast, arg_llvm in zip(func_def.args.args, function.args):
             ns[arg_ast.arg].auto_store(builder, arg_llvm)
 
-        visitor = ast_body.Visitor(self.env, ns, builder)
+        visitor = ast_body.Visitor(self.runtime, ns, builder)
         visitor.visit_statements(func_def.body)
 
         if not tools.is_terminated(builder.basic_block):

artiq/py2llvm_old/tools.py

@@ -1,4 +1,4 @@
-import llvmlite.ir as ll
+import llvmlite_or1k.ir as ll
 
 def is_terminated(basic_block):
 	return (basic_block.instructions

artiq/py2llvm_old/values.py

@@ -1,7 +1,7 @@
 from types import SimpleNamespace
 from copy import copy
 
-import llvmlite.ir as ll
+import llvmlite_or1k.ir as ll
 
 
 class VGeneric:

artiq/sim/devices.py

@@ -1,29 +1,29 @@
 from random import Random
 
 from artiq.language.core import delay, kernel
-from artiq.language.db import *
 from artiq.language import units
 from artiq.sim import time
 
 
-class Core(AutoDB):
-    _level = 0
+class Core:
+    def __init__(self, dmgr):
+        self.ref_period = 1
+        self._level = 0
 
     def run(self, k_function, k_args, k_kwargs):
-        Core._level += 1
+        self._level += 1
         r = k_function(*k_args, **k_kwargs)
-        Core._level -= 1
-        if Core._level == 0:
+        self._level -= 1
+        if self._level == 0:
             print(time.manager.format_timeline())
         return r
 
 
-class Input(AutoDB):
-    class DBKeys:
-        core = Device()
-        name = Argument()
+class Input:
+    def __init__(self, dmgr, name):
+        self.core = dmgr.get("core")
+        self.name = name
 
-    def build(self):
         self.prng = Random()
 
     @kernel
@@ -40,10 +40,10 @@ class Input(AutoDB):
         return result
 
 
-class WaveOutput(AutoDB):
-    class DBKeys:
-        core = Device()
-        name = Argument()
+class WaveOutput:
+    def __init__(self, dmgr, name):
+        self.core = dmgr.get("core")
+        self.name = name
 
     @kernel
     def pulse(self, frequency, duration):
@@ -51,10 +51,10 @@ class WaveOutput(AutoDB):
         delay(duration)
 
 
-class VoltageOutput(AutoDB):
-    class DBKeys:
-        core = Device()
-        name = Argument()
+class VoltageOutput:
+    def __init__(self, dmgr, name):
+        self.core = dmgr.get("core")
+        self.name = name
 
     @kernel
     def set(self, value):

artiq/sim/time.py

@@ -30,37 +30,39 @@ class Manager:
         self.timeline = []
 
     def enter_sequential(self):
-        new_context = SequentialTimeContext(self.get_time())
+        new_context = SequentialTimeContext(self.get_time_mu())
         self.stack.append(new_context)
 
     def enter_parallel(self):
-        new_context = ParallelTimeContext(self.get_time())
+        new_context = ParallelTimeContext(self.get_time_mu())
         self.stack.append(new_context)
 
     def exit(self):
         old_context = self.stack.pop()
         self.take_time(old_context.block_duration)
 
-    def take_time(self, duration):
+    def take_time_mu(self, duration):
         self.stack[-1].take_time(duration)
 
-    def get_time(self):
+    def get_time_mu(self):
         return self.stack[-1].current_time
 
-    def set_time(self, t):
-        dt = t - self.get_time()
+    def set_time_mu(self, t):
+        dt = t - self.get_time_mu()
         if dt < 0*s:
             raise ValueError("Attempted to go back in time")
         self.take_time(dt)
 
+    take_time = take_time_mu
+
     def event(self, description):
-        self.timeline.append((self.get_time(), description))
+        self.timeline.append((self.get_time_mu(), description))
 
     def format_timeline(self):
         r = ""
         prev_time = 0*s
         for time, description in sorted(self.timeline, key=itemgetter(0)):
-            r += "@{:10} (+{:10}) ".format(str(time), str(time-prev_time))
+            r += "@{:.9f} (+{:.9f}) ".format(time, time-prev_time)
             for item in description:
                 r += "{:16}".format(str(item))
             r += "\n"

artiq/test/coefficients.py

@@ -12,7 +12,7 @@ class TestSplineCoef(unittest.TestCase):
         self.s = coefficients.SplineSource(self.x, self.y, order=4)
 
     def test_get_segment(self):
-        return list(self.s.get_segment_data(1.5, 3.2, 1/100.))
+        return list(self.s.get_segment_data(start=1.5, stop=3.2, scale=.01))
 
     def test_synth(self):
         d = self.test_get_segment()
@@ -32,7 +32,7 @@ class TestSplineCoef(unittest.TestCase):
 
     @unittest.skip("manual/visual test")
     def test_plot(self):
-        import cairoplot
+        import matplotlib.pyplot as plt
         y = self.test_run()
-        x = list(range(len(y)))
-        cairoplot.scatter_plot("plot.png", [x, y])
+        plt.step(np.arange(len(y)), y)
+        plt.show()

artiq/test/coredevice.py

@@ -0,0 +1,276 @@
+from math import sqrt
+
+from artiq.language import *
+from artiq.test.hardware_testbench import ExperimentCase
+from artiq.coredevice.runtime_exceptions import RTIOUnderflow
+from artiq.coredevice import runtime_exceptions
+
+
+class RTT(EnvExperiment):
+    def build(self):
+        self.attr_device("core")
+        self.attr_device("ttl_inout")
+
+    def set_rtt(self, rtt):
+        self.set_result("rtt", rtt)
+
+    @kernel
+    def run(self):
+        self.ttl_inout.output()
+        delay(1*us)
+        with parallel:
+            # make sure not to send two commands into the same RTIO
+            # channel with the same timestamp
+            self.ttl_inout.gate_rising(5*us)
+            with sequential:
+                delay(1*us)
+                t0 = now_mu()
+                self.ttl_inout.pulse(1*us)
+        self.set_rtt(mu_to_seconds(self.ttl_inout.timestamp_mu() - t0))
+
+
+class Loopback(EnvExperiment):
+    def build(self):
+        self.attr_device("core")
+        self.attr_device("loop_in")
+        self.attr_device("loop_out")
+
+    def set_rtt(self, rtt):
+        self.set_result("rtt", rtt)
+
+    @kernel
+    def run(self):
+        self.loop_in.input()
+        delay(1*us)
+        with parallel:
+            self.loop_in.gate_rising(2*us)
+            with sequential:
+                delay(1*us)
+                t0 = now_mu()
+                self.loop_out.pulse(1*us)
+        self.set_rtt(mu_to_seconds(self.loop_in.timestamp_mu() - t0))
+
+
+class ClockGeneratorLoopback(EnvExperiment):
+    def build(self):
+        self.attr_device("core")
+        self.attr_device("loop_clock_in")
+        self.attr_device("loop_clock_out")
+
+    def set_count(self, count):
+        self.set_result("count", count)
+
+    @kernel
+    def run(self):
+        self.loop_clock_in.input()
+        self.loop_clock_out.stop()
+        delay(1*us)
+        with parallel:
+            self.loop_clock_in.gate_rising(10*us)
+            with sequential:
+                delay(200*ns)
+                self.loop_clock_out.set(1*MHz)
+        self.set_count(self.loop_clock_in.count())
+
+
+class PulseRate(EnvExperiment):
+    def build(self):
+        self.attr_device("core")
+        self.attr_device("loop_out")
+
+    def set_pulse_rate(self, pulse_rate):
+        self.set_result("pulse_rate", pulse_rate)
+
+    @kernel
+    def run(self):
+        dt = seconds_to_mu(1000*ns)
+        while True:
+            try:
+                for i in range(1000):
+                    self.loop_out.pulse_mu(dt)
+                    delay_mu(dt)
+            except RTIOUnderflow:
+                dt += 1
+                self.core.break_realtime()
+            else:
+                self.set_pulse_rate(mu_to_seconds(2*dt))
+                break
+
+
+class Watchdog(EnvExperiment):
+    def build(self):
+        self.attr_device("core")
+
+    @kernel
+    def run(self):
+        with watchdog(50*ms):
+            while True:
+                pass
+
+
+class LoopbackCount(EnvExperiment):
+    def build(self):
+        self.attr_device("core")
+        self.attr_device("ttl_inout")
+        self.attr_argument("npulses")
+
+    def set_count(self, count):
+        self.set_result("count", count)
+
+    @kernel
+    def run(self):
+        self.ttl_inout.output()
+        delay(1*us)
+        with parallel:
+            self.ttl_inout.gate_rising(10*us)
+            with sequential:
+                for i in range(self.npulses):
+                    delay(25*ns)
+                    self.ttl_inout.pulse(25*ns)
+        self.set_count(self.ttl_inout.count())
+
+
+class Underflow(EnvExperiment):
+    def build(self):
+        self.attr_device("core")
+        self.attr_device("ttl_out")
+
+    @kernel
+    def run(self):
+        while True:
+            delay(25*ns)
+            self.ttl_out.pulse(25*ns)
+
+
+class SequenceError(EnvExperiment):
+    def build(self):
+        self.attr_device("core")
+        self.attr_device("ttl_out")
+
+    @kernel
+    def run(self):
+        t = now_mu()
+        self.ttl_out.pulse(25*us)
+        at_mu(t)
+        self.ttl_out.pulse(25*us)
+
+
+class TimeKeepsRunning(EnvExperiment):
+    def build(self):
+        self.attr_device("core")
+
+    def set_time_at_start(self, time_at_start):
+        self.set_result("time_at_start", time_at_start)
+
+    @kernel
+    def run(self):
+        self.set_time_at_start(now_mu())
+
+
+class Handover(EnvExperiment):
+    def build(self):
+        self.attr_device("core")
+
+    @kernel
+    def get_now(self):
+        self.time_at_start = now_mu()
+
+    def run(self):
+        self.get_now()
+        self.set_result("t1", self.time_at_start)
+        self.get_now()
+        self.set_result("t2", self.time_at_start)
+
+
+class CoredeviceTest(ExperimentCase):
+    def test_rtt(self):
+        self.execute(RTT)
+        rtt = self.rdb.get("rtt")
+        print(rtt)
+        self.assertGreater(rtt, 0*ns)
+        self.assertLess(rtt, 100*ns)
+
+    def test_loopback(self):
+        self.execute(Loopback)
+        rtt = self.rdb.get("rtt")
+        print(rtt)
+        self.assertGreater(rtt, 0*ns)
+        self.assertLess(rtt, 50*ns)
+
+    def test_clock_generator_loopback(self):
+        self.execute(ClockGeneratorLoopback)
+        count = self.rdb.get("count")
+        self.assertEqual(count, 10)
+
+    def test_pulse_rate(self):
+        self.execute(PulseRate)
+        rate = self.rdb.get("pulse_rate")
+        print(rate)
+        self.assertGreater(rate, 100*ns)
+        self.assertLess(rate, 2500*ns)
+
+    def test_loopback_count(self):
+        npulses = 2
+        r = self.execute(LoopbackCount, npulses=npulses)
+        count = self.rdb.get("count")
+        self.assertEqual(count, npulses)
+
+    def test_underflow(self):
+        with self.assertRaises(runtime_exceptions.RTIOUnderflow):
+            self.execute(Underflow)
+
+    def test_sequence_error(self):
+        with self.assertRaises(runtime_exceptions.RTIOSequenceError):
+            self.execute(SequenceError)
+
+    def test_watchdog(self):
+        # watchdog only works on the device
+        with self.assertRaises(IOError):
+            self.execute(Watchdog)
+
+    def test_time_keeps_running(self):
+        self.execute(TimeKeepsRunning)
+        t1 = self.rdb.get("time_at_start")
+        self.execute(TimeKeepsRunning)
+        t2 = self.rdb.get("time_at_start")
+        dead_time = mu_to_seconds(t2 - t1, self.dmgr.get("core"))
+        print(dead_time)
+        self.assertGreater(dead_time, 1*ms)
+        self.assertLess(dead_time, 300*ms)
+
+    def test_handover(self):
+        self.execute(Handover)
+        self.assertEqual(self.rdb.get("t1"), self.rdb.get("t2"))
+
+
+class RPCTiming(EnvExperiment):
+    def build(self):
+        self.attr_device("core")
+        self.attr_argument("repeats", FreeValue(100))
+
+    def nop(self, x):
+        pass
+
+    @kernel
+    def bench(self):
+        self.ts = [0. for _ in range(self.repeats)]
+        for i in range(self.repeats):
+            t1 = self.core.get_rtio_counter_mu()
+            self.nop(1)
+            t2 = self.core.get_rtio_counter_mu()
+            self.ts[i] = mu_to_seconds(t2 - t1)
+
+    def run(self):
+        self.bench()
+        mean = sum(self.ts)/self.repeats
+        self.set_result("rpc_time_stddev", sqrt(
+            sum([(t - mean)**2 for t in self.ts])/self.repeats))
+        self.set_result("rpc_time_mean", mean)
+
+
+class RPCTest(ExperimentCase):
+    def test_rpc_timing(self):
+        self.execute(RPCTiming)
+        self.assertGreater(self.rdb.get("rpc_time_mean"), 100*ns)
+        self.assertLess(self.rdb.get("rpc_time_mean"), 15*ms)
+        self.assertLess(self.rdb.get("rpc_time_stddev"), 1*ms)

artiq/test/coredevice_vs_host.py

@@ -0,0 +1,220 @@
+from operator import itemgetter
+from fractions import Fraction
+
+from artiq import *
+from artiq.sim import devices as sim_devices
+from artiq.test.hardware_testbench import ExperimentCase
+
+
+def _run_on_host(k_class, **arguments):
+    dmgr = dict()
+    dmgr["core"] = sim_devices.Core(dmgr)
+    k_inst = k_class(dmgr, **arguments)
+    k_inst.run()
+    return k_inst
+
+
+class _Primes(EnvExperiment):
+    def build(self):
+        self.attr_device("core")
+        self.attr_argument("output_list")
+        self.attr_argument("maximum")
+
+    @kernel
+    def run(self):
+        for x in range(1, self.maximum):
+            d = 2
+            prime = True
+            while d*d <= x:
+                if x % d == 0:
+                    prime = False
+                    break
+                d += 1
+            if prime:
+                self.output_list.append(x)
+
+
+class _Misc(EnvExperiment):
+    def build(self):
+        self.attr_device("core")
+
+        self.input = 84
+        self.al = [1, 2, 3, 4, 5]
+        self.list_copy_in = [2*Hz, 10*MHz]
+
+    @kernel
+    def run(self):
+        self.half_input = self.input//2
+        self.decimal_fraction = Fraction("1.2")
+        self.acc = 0
+        for i in range(len(self.al)):
+            self.acc += self.al[i]
+        self.list_copy_out = self.list_copy_in
+
+
+class _PulseLogger(EnvExperiment):
+    def build(self):
+        self.attr_device("core")
+        self.attr_argument("output_list")
+        self.attr_argument("name")
+
+    def _append(self, t, l, f):
+        if not hasattr(self, "first_timestamp"):
+            self.first_timestamp = t
+        self.output_list.append((self.name, t-self.first_timestamp, l, f))
+
+    def int_usec(self, mu):
+        return round(mu_to_seconds(mu, self.core)*1000000)
+
+    def on(self, t, f):
+        self._append(self.int_usec(t), True, f)
+
+    def off(self, t):
+        self._append(self.int_usec(t), False, 0)
+
+    @kernel
+    def pulse(self, f, duration):
+        self.on(now_mu(), f)
+        delay(duration)
+        self.off(now_mu())
+
+
+class _Pulses(EnvExperiment):
+    def build(self):
+        self.attr_device("core")
+        self.attr_argument("output_list")
+
+        for name in "a", "b", "c", "d":
+            pl = _PulseLogger(*self.dbs(),
+                              output_list=self.output_list,
+                              name=name)
+            setattr(self, name, pl)
+
+    @kernel
+    def run(self):
+        for i in range(3):
+            with parallel:
+                with sequential:
+                    self.a.pulse(100+i, 20*us)
+                    self.b.pulse(200+i, 20*us)
+                with sequential:
+                    self.c.pulse(300+i, 10*us)
+                    self.d.pulse(400+i, 20*us)
+
+
+class _MyException(Exception):
+    pass
+
+
+class _Exceptions(EnvExperiment):
+    def build(self):
+        self.attr_device("core")
+        self.attr_argument("trace")
+
+    @kernel
+    def run(self):
+        for i in range(10):
+            self.trace.append(i)
+            if i == 4:
+                try:
+                    self.trace.append(10)
+                    try:
+                        self.trace.append(11)
+                        break
+                    except:
+                        pass
+                    else:
+                        self.trace.append(12)
+                    try:
+                        self.trace.append(13)
+                    except:
+                        pass
+                except _MyException:
+                    self.trace.append(14)
+
+        for i in range(4):
+            try:
+                self.trace.append(100)
+                if i == 1:
+                    raise _MyException
+                elif i == 2:
+                    raise IndexError
+            except (TypeError, IndexError):
+                self.trace.append(101)
+                raise
+            except:
+                self.trace.append(102)
+            else:
+                self.trace.append(103)
+            finally:
+                self.trace.append(104)
+
+
+class _RPCExceptions(EnvExperiment):
+    def build(self):
+        self.attr_device("core")
+        self.attr_argument("catch", FreeValue(False))
+
+        self.success = False
+
+    def exception_raiser(self):
+        raise _MyException
+
+    @kernel
+    def run(self):
+        if self.catch:
+            self.do_catch()
+        else:
+            self.do_not_catch()
+
+    @kernel
+    def do_not_catch(self):
+        self.exception_raiser()
+
+    @kernel
+    def do_catch(self):
+        try:
+            self.exception_raiser()
+        except _MyException:
+            self.success = True
+
+
+class HostVsDeviceCase(ExperimentCase):
+    def test_primes(self):
+        l_device, l_host = [], []
+        self.execute(_Primes, maximum=100, output_list=l_device)
+        _run_on_host(_Primes, maximum=100, output_list=l_host)
+        self.assertEqual(l_device, l_host)
+
+    def test_misc(self):
+        for f in self.execute, _run_on_host:
+            uut = f(_Misc)
+            self.assertEqual(uut.half_input, 42)
+            self.assertEqual(uut.decimal_fraction, Fraction("1.2"))
+            self.assertEqual(uut.acc, sum(uut.al))
+            self.assertEqual(uut.list_copy_in, uut.list_copy_out)
+
+    def test_pulses(self):
+        l_device, l_host = [], []
+        self.execute(_Pulses, output_list=l_device)
+        _run_on_host(_Pulses, output_list=l_host)
+        l_host = sorted(l_host, key=itemgetter(1))
+        for channel in "a", "b", "c", "d":
+            c_device = [x for x in l_device if x[0] == channel]
+            c_host = [x for x in l_host if x[0] == channel]
+            self.assertEqual(c_device, c_host)
+
+    def test_exceptions(self):
+        t_device, t_host = [], []
+        with self.assertRaises(IndexError):
+            self.execute(_Exceptions, trace=t_device)
+        with self.assertRaises(IndexError):
+            _run_on_host(_Exceptions, trace=t_host)
+        self.assertEqual(t_device, t_host)
+
+    def test_rpc_exceptions(self):
+        for f in self.execute, _run_on_host:
+            with self.assertRaises(_MyException):
+                f(_RPCExceptions, catch=False)
+            uut = self.execute(_RPCExceptions, catch=True)
+            self.assertTrue(uut.success)

artiq/test/full_stack.py

@@ -1,371 +0,0 @@
-import unittest
-from operator import itemgetter
-import os
-from fractions import Fraction
-
-from artiq import *
-from artiq.language.units import DimensionError
-from artiq.coredevice import comm_tcp, core, runtime_exceptions, ttl
-from artiq.sim import devices as sim_devices
-
-
-core_device = os.getenv("ARTIQ_CORE_DEVICE")
-
-
-def _run_on_device(k_class, **parameters):
-    comm = comm_tcp.Comm(host=core_device)
-    try:
-        coredev = core.Core(comm=comm)
-        k_inst = k_class(core=coredev, **parameters)
-        k_inst.run()
-    finally:
-        comm.close()
-
-
-def _run_on_host(k_class, **parameters):
-    coredev = sim_devices.Core()
-    k_inst = k_class(core=coredev, **parameters)
-    k_inst.run()
-
-
-class _Primes(AutoDB):
-    class DBKeys:
-        core = Device()
-        output_list = Argument()
-        maximum = Argument()
-
-    @kernel
-    def run(self):
-        for x in range(1, self.maximum):
-            d = 2
-            prime = True
-            while d*d <= x:
-                if x % d == 0:
-                    prime = False
-                    break
-                d += 1
-            if prime:
-                self.output_list.append(x)
-
-
-class _Misc(AutoDB):
-    def build(self):
-        self.input = 84
-        self.inhomogeneous_units = []
-        self.al = [1, 2, 3, 4, 5]
-        self.list_copy_in = [2*Hz, 10*MHz]
-
-    @kernel
-    def run(self):
-        self.half_input = self.input//2
-        self.decimal_fraction = Fraction("1.2")
-        self.inhomogeneous_units.append(1000*Hz)
-        self.inhomogeneous_units.append(10*s)
-        self.acc = 0
-        for i in range(len(self.al)):
-            self.acc += self.al[i]
-        self.list_copy_out = self.list_copy_in
-        self.unit_comp = [1*MHz for _ in range(3)]
-
-    @kernel
-    def dimension_error1(self):
-        print(1*Hz + 1*s)
-
-    @kernel
-    def dimension_error2(self):
-        print(1*Hz < 1*s)
-
-    @kernel
-    def dimension_error3(self):
-        check_unit(1*Hz, "s")
-
-    @kernel
-    def dimension_error4(self):
-        delay(10*Hz)
-
-
-class _PulseLogger(AutoDB):
-    class DBKeys:
-        core = Device()
-        output_list = Argument()
-        name = Argument()
-
-    def _append(self, t, l, f):
-        if not hasattr(self, "first_timestamp"):
-            self.first_timestamp = t
-        self.output_list.append((self.name, t-self.first_timestamp, l, f))
-
-    def on(self, t, f):
-        self._append(t, True, f)
-
-    def off(self, t):
-        self._append(t, False, 0)
-
-    @kernel
-    def pulse(self, f, duration):
-        self.on(int(now().amount*1000000000), f)
-        delay(duration)
-        self.off(int(now().amount*1000000000))
-
-
-class _Pulses(AutoDB):
-    class DBKeys:
-        core = Device()
-        output_list = Argument()
-
-    def build(self):
-        for name in "a", "b", "c", "d":
-            pl = _PulseLogger(core=self.core,
-                              output_list=self.output_list,
-                              name=name)
-            setattr(self, name, pl)
-
-    @kernel
-    def run(self):
-        for i in range(3):
-            with parallel:
-                with sequential:
-                    self.a.pulse(100+i, 20*us)
-                    self.b.pulse(200+i, 20*us)
-                with sequential:
-                    self.c.pulse(300+i, 10*us)
-                    self.d.pulse(400+i, 20*us)
-
-
-class _MyException(Exception):
-    pass
-
-
-class _Exceptions(AutoDB):
-    class DBKeys:
-        core = Device()
-        trace = Argument()
-
-    @kernel
-    def run(self):
-        for i in range(10):
-            self.trace.append(i)
-            if i == 4:
-                try:
-                    self.trace.append(10)
-                    try:
-                        self.trace.append(11)
-                        break
-                    except:
-                        pass
-                    else:
-                        self.trace.append(12)
-                    try:
-                        self.trace.append(13)
-                    except:
-                        pass
-                except _MyException:
-                    self.trace.append(14)
-
-        for i in range(4):
-            try:
-                self.trace.append(100)
-                if i == 1:
-                    raise _MyException
-                elif i == 2:
-                    raise IndexError
-            except (TypeError, IndexError):
-                self.trace.append(101)
-                raise
-            except:
-                self.trace.append(102)
-            else:
-                self.trace.append(103)
-            finally:
-                self.trace.append(104)
-
-
-class _RPCExceptions(AutoDB):
-    class DBKeys:
-        core = Device()
-
-    def build(self):
-        self.success = False
-
-    def exception_raiser(self):
-        raise _MyException
-
-    @kernel
-    def do_not_catch(self):
-        self.exception_raiser()
-
-    @kernel
-    def catch(self):
-        try:
-            self.exception_raiser()
-        except _MyException:
-            self.success = True
-
-
-class _Watchdog(AutoDB):
-    class DBKeys:
-        core = Device()
-
-    @kernel
-    def run(self):
-        with watchdog(50*ms):
-            while True:
-                pass
-
-
-@unittest.skipUnless(core_device, "no hardware")
-class ExecutionCase(unittest.TestCase):
-    def test_primes(self):
-        l_device, l_host = [], []
-        _run_on_device(_Primes, maximum=100, output_list=l_device)
-        _run_on_host(_Primes, maximum=100, output_list=l_host)
-        self.assertEqual(l_device, l_host)
-
-    def test_misc(self):
-        comm = comm_tcp.Comm(host=core_device)
-        try:
-            coredev = core.Core(comm=comm)
-            uut = _Misc(core=coredev)
-            uut.run()
-            self.assertEqual(uut.half_input, 42)
-            self.assertEqual(uut.decimal_fraction, Fraction("1.2"))
-            self.assertEqual(uut.inhomogeneous_units, [1000*Hz, 10*s])
-            self.assertEqual(uut.acc, sum(uut.al))
-            self.assertEqual(uut.list_copy_in, uut.list_copy_out)
-            self.assertEqual(uut.unit_comp, [1*MHz for _ in range(3)])
-            with self.assertRaises(DimensionError):
-                uut.dimension_error1()
-            with self.assertRaises(DimensionError):
-                uut.dimension_error2()
-            with self.assertRaises(DimensionError):
-                uut.dimension_error3()
-            with self.assertRaises(DimensionError):
-                uut.dimension_error4()
-        finally:
-            comm.close()
-
-    def test_pulses(self):
-        l_device, l_host = [], []
-        _run_on_device(_Pulses, output_list=l_device)
-        _run_on_host(_Pulses, output_list=l_host)
-        l_host = sorted(l_host, key=itemgetter(1))
-        for channel in "a", "b", "c", "d":
-            c_device = [x for x in l_device if x[0] == channel]
-            c_host = [x for x in l_host if x[0] == channel]
-            self.assertEqual(c_device, c_host)
-
-    def test_exceptions(self):
-        t_device, t_host = [], []
-        with self.assertRaises(IndexError):
-            _run_on_device(_Exceptions, trace=t_device)
-        with self.assertRaises(IndexError):
-            _run_on_host(_Exceptions, trace=t_host)
-        self.assertEqual(t_device, t_host)
-
-    def test_rpc_exceptions(self):
-        comm = comm_tcp.Comm(host=core_device)
-        try:
-            uut = _RPCExceptions(core=core.Core(comm=comm))
-            with self.assertRaises(_MyException):
-                uut.do_not_catch()
-            uut.catch()
-            self.assertTrue(uut.success)
-        finally:
-            comm.close()
-
-    def test_watchdog(self):
-        with self.assertRaises(IOError):
-            _run_on_device(_Watchdog)
-
-
-class _RTIOLoopback(AutoDB):
-    class DBKeys:
-        core = Device()
-        io = Device()
-        npulses = Argument()
-
-    def report(self, n):
-        self.result = n
-
-    @kernel
-    def run(self):
-        self.io.output()
-        delay(1*us)
-        with parallel:
-            self.io.gate_rising(10*us)
-            with sequential:
-                for i in range(self.npulses):
-                    delay(25*ns)
-                    self.io.pulse(25*ns)
-        self.report(self.io.count())
-
-
-class _RTIOUnderflow(AutoDB):
-    class DBKeys:
-        core = Device()
-        o = Device()
-
-    @kernel
-    def run(self):
-        while True:
-            delay(25*ns)
-            self.o.pulse(25*ns)
-
-
-class _RTIOSequenceError(AutoDB):
-    class DBKeys:
-        core = Device()
-        o = Device()
-
-    @kernel
-    def run(self):
-        t = now()
-        self.o.pulse(25*us)
-        at(t)
-        self.o.pulse(25*us)
-
-
-@unittest.skipUnless(core_device, "no hardware")
-class RTIOCase(unittest.TestCase):
-    # Connect channels 0 and 1 together for this test
-    # (C11 and C13 on Papilio Pro)
-    def test_loopback(self):
-        npulses = 4
-        comm = comm_tcp.Comm(host=core_device)
-        try:
-            coredev = core.Core(comm=comm)
-            uut = _RTIOLoopback(
-                core=coredev,
-                io=ttl.TTLInOut(core=coredev, channel=0),
-                npulses=npulses
-            )
-            uut.run()
-            self.assertEqual(uut.result, npulses)
-        finally:
-            comm.close()
-
-    def test_underflow(self):
-        comm = comm_tcp.Comm(host=core_device)
-        try:
-            coredev = core.Core(comm=comm)
-            uut = _RTIOUnderflow(
-                core=coredev,
-                o=ttl.TTLOut(core=coredev, channel=2)
-            )
-            with self.assertRaises(runtime_exceptions.RTIOUnderflow):
-                uut.run()
-        finally:
-            comm.close()
-
-    def test_sequence_error(self):
-        comm = comm_tcp.Comm(host=core_device)
-        try:
-            coredev = core.Core(comm=comm)
-            uut = _RTIOSequenceError(
-                core=coredev,
-                o=ttl.TTLOut(core=coredev, channel=2)
-            )
-            with self.assertRaises(runtime_exceptions.RTIOSequenceError):
-                uut.run()
-        finally:
-            comm.close()

artiq/test/hardware_testbench.py

@@ -0,0 +1,58 @@
+import os
+import sys
+import unittest
+import logging
+
+from artiq.language import *
+from artiq.protocols.file_db import FlatFileDB
+from artiq.master.worker_db import DeviceManager, ResultDB
+from artiq.frontend.artiq_run import DummyScheduler
+
+
+artiq_root = os.getenv("ARTIQ_ROOT")
+logger = logging.getLogger(__name__)
+
+
+def get_from_ddb(*path, default="skip"):
+    if not artiq_root:
+        raise unittest.SkipTest("no ARTIQ_ROOT")
+    v = FlatFileDB(os.path.join(artiq_root, "ddb.pyon")).data
+    try:
+        for p in path:
+            v = v[p]
+        return v.read
+    except KeyError:
+        if default == "skip":
+            raise unittest.SkipTest("ddb path {} not found".format(path))
+        else:
+            return default
+
+
+@unittest.skipUnless(artiq_root, "no ARTIQ_ROOT")
+class ExperimentCase(unittest.TestCase):
+    def setUp(self):
+        self.ddb = FlatFileDB(os.path.join(artiq_root, "ddb.pyon"))
+        self.dmgr = DeviceManager(self.ddb,
+            virtual_devices={"scheduler": DummyScheduler()})
+        self.pdb = FlatFileDB(os.path.join(artiq_root, "pdb.pyon"))
+        self.rdb = ResultDB()
+
+    def execute(self, cls, **kwargs):
+        expid = {
+            "file": sys.modules[cls.__module__].__file__,
+            "class_name": cls.__name__,
+            "arguments": kwargs
+        }
+        self.dmgr.virtual_devices["scheduler"].expid = expid
+        try:
+            try:
+                exp = cls(self.dmgr, self.pdb, self.rdb, **kwargs)
+            except KeyError as e:
+                # skip if ddb does not match requirements
+                raise unittest.SkipTest(*e.args)
+            exp.prepare()
+            exp.run()
+            exp.analyze()
+            return exp
+        finally:
+            self.dmgr.close_devices()

artiq/test/lda.py

@@ -1,34 +1,28 @@
 import unittest
-import os
 
 from artiq.devices.lda.driver import Lda, Ldasim
 from artiq.language.units import dB
-
-
-lda_serial = os.getenv("ARTIQ_LDA_SERIAL")
+from artiq.test.hardware_testbench import get_from_ddb
 
 
 class GenericLdaTest:
     def test_attenuation(self):
-        step = self.cont.get_att_step_size().amount
-        max = self.cont.get_att_max().amount
-        test_vector = [i*step*dB for i in range(0, int(max*int(1/step)+1))]
+        step = self.cont.get_att_step_size()
+        attmax = self.cont.get_att_max()
+        test_vector = [i*step*dB for i in range(0, int(attmax*int(1/step)+1))]
         for i in test_vector:
             with self.subTest(i=i):
                 self.cont.set_attenuation(i)
                 self.assertEqual(i, self.cont.get_attenuation())
 
 
-@unittest.skipUnless(lda_serial, "no hardware")
 class TestLda(GenericLdaTest, unittest.TestCase):
     def setUp(self):
-        product = os.getenv("ARTIQ_LDA_PRODUCT")
-        self.cont = Lda(serial=lda_serial, product=product)
+        lda_serial = get_from_ddb("lda", "device")
+        lda_product = get_from_ddb("lda", "product")
+        self.cont = Lda(serial=lda_serial, product=lda_product)
 
 
 class TestLdaSim(GenericLdaTest, unittest.TestCase):
     def setUp(self):
         self.cont = Ldasim()
-
-if __name__ == "__main__":
-    unittest.main()

artiq/test/novatech409b.py

@@ -0,0 +1,31 @@
+import unittest
+
+from artiq.devices.novatech409b.driver import Novatech409B
+from artiq.test.hardware_testbench import get_from_ddb
+
+
+class GenericNovatech409BTest:
+    def test_parameters_readback(self):
+        # write sample data and read it back
+        for i in range(4):
+            self.driver.set_freq(i, 1e6)
+            self.driver.set_phase(i, 0.5)
+            self.driver.set_gain(i, 0.25)
+        result = self.driver.get_status()
+
+        # check for expected status message; ignore all but first 23 bytes
+        # compare with previous result extracted from Novatech
+        for i in range(4):
+            r = result[i]
+            self.assertEqual(r[0:23], "00989680 2000 01F5 0000")
+
+
+class TestNovatech409B(GenericNovatech409BTest, unittest.TestCase):
+    def setUp(self):
+        novatech409b_device = get_from_ddb("novatech409b", "device")
+        self.driver = Novatech409B(novatech409b_device)
+
+
+class TestNovatech409BSim(GenericNovatech409BTest, unittest.TestCase):
+    def setUp(self):
+        self.driver = Novatech409B(None)

artiq/test/pc_rpc.py

@@ -6,7 +6,7 @@ import time
 
 import numpy as np
 
-from artiq.protocols import pc_rpc
+from artiq.protocols import pc_rpc, fire_and_forget
 
 
 test_address = "::1"
@@ -73,13 +73,29 @@ class RPCCase(unittest.TestCase):
             remote.close_rpc()
 
     def _loop_asyncio_echo(self):
-        loop = asyncio.get_event_loop()
+        loop = asyncio.new_event_loop()
+        asyncio.set_event_loop(loop)
+        try:
             loop.run_until_complete(self._asyncio_echo())
+        finally:
+            loop.close()
 
     def test_asyncio_echo(self):
         self._run_server_and_test(self._loop_asyncio_echo)
 
 
+class FireAndForgetCase(unittest.TestCase):
+    def _set_ok(self):
+        self.ok = True
+
+    def test_fire_and_forget(self):
+        self.ok = False
+        p = fire_and_forget.FFProxy(self)
+        p._set_ok()
+        p.ff_join()
+        self.assertTrue(self.ok)
+
+
 class Echo:
     def __init__(self):
         self.terminate_notify = asyncio.Semaphore(0)
@@ -96,7 +112,8 @@ class Echo:
 
 
 def run_server():
-    loop = asyncio.get_event_loop()
+    loop = asyncio.new_event_loop()
+    asyncio.set_event_loop(loop)
     try:
         echo = Echo()
         server = pc_rpc.Server({"test": echo})

artiq/test/py2llvm.py

@@ -5,7 +5,7 @@ from fractions import Fraction
 from ctypes import CFUNCTYPE, c_int, c_int32, c_int64, c_double
 import struct
 
-import llvmlite.binding as llvm
+import llvmlite_or1k.binding as llvm
 
 from artiq.language.core import int64
 from artiq.py2llvm.infer_types import infer_function_types

artiq/test/scheduler.py

@@ -0,0 +1,169 @@
+import unittest
+import asyncio
+import sys
+from time import time, sleep
+
+from artiq import *
+from artiq.master.scheduler import Scheduler
+
+
+class EmptyExperiment(EnvExperiment):
+    def build(self):
+        pass
+
+    def run(self):
+        pass
+
+
+class BackgroundExperiment(EnvExperiment):
+    def build(self):
+        self.attr_device("scheduler")
+
+    def run(self):
+        while True:
+            self.scheduler.pause()
+            sleep(0.2)
+
+
+def _get_expid(name):
+    return {
+        "file": sys.modules[__name__].__file__,
+        "class_name": name,
+        "arguments": dict()
+    }
+
+
+def _get_basic_steps(rid, expid, priority=0, flush=False):
+    return [
+        {"action": "setitem", "key": rid, "value": 
+            {"pipeline": "main", "status": "pending", "priority": priority,
+             "expid": expid, "due_date": None, "flush": flush},
+            "path": []},
+        {"action": "setitem", "key": "status", "value": "preparing",
+            "path": [rid]},
+        {"action": "setitem", "key": "status", "value": "prepare_done",
+            "path": [rid]},
+        {"action": "setitem", "key": "status", "value": "running",
+            "path": [rid]},
+        {"action": "setitem", "key": "status", "value": "run_done",
+            "path": [rid]},
+        {"action": "setitem", "key": "status", "value": "analyzing",
+            "path": [rid]},
+        {"action": "setitem", "key": "status", "value": "analyze_done",
+            "path": [rid]},
+        {"action": "delitem", "key": rid, "path": []}
+    ]
+
+
+_handlers = {
+    "init_rt_results": lambda description: None
+}
+
+
+class SchedulerCase(unittest.TestCase):
+    def setUp(self):
+        self.loop = asyncio.new_event_loop()
+        asyncio.set_event_loop(self.loop)
+
+    def test_steps(self):
+        loop = self.loop
+        scheduler = Scheduler(0, _handlers)
+        expid = _get_expid("EmptyExperiment")
+
+        expect = _get_basic_steps(1, expid)
+        done = asyncio.Event()
+        expect_idx = 0
+        def notify(mod):
+            nonlocal expect_idx
+            self.assertEqual(mod, expect[expect_idx])
+            expect_idx += 1
+            if expect_idx >= len(expect):
+                done.set()
+        scheduler.notifier.publish = notify
+
+        scheduler.start()
+
+        # Verify that a timed experiment far in the future does not
+        # get run, even if it has high priority.
+        late = time() + 100000
+        expect.insert(0,
+            {"action": "setitem", "key": 0, "value":
+                {"pipeline": "main", "status": "pending", "priority": 99,
+                 "expid": expid, "due_date": late, "flush": False},
+             "path": []})
+        scheduler.submit("main", expid, 99, late, False)
+
+        # This one (RID 1) gets run instead.
+        scheduler.submit("main", expid, 0, None, False)
+
+        loop.run_until_complete(done.wait())
+        scheduler.notifier.publish = None
+        loop.run_until_complete(scheduler.stop())
+
+    def test_pause(self):
+        loop = self.loop
+        scheduler = Scheduler(0, _handlers)
+        expid_bg = _get_expid("BackgroundExperiment")
+        expid = _get_expid("EmptyExperiment")
+
+        expect = _get_basic_steps(1, expid)
+        background_running = asyncio.Event()
+        done = asyncio.Event()
+        expect_idx = 0
+        def notify(mod):
+            nonlocal expect_idx
+            if mod == {"path": [0],
+                       "value": "running",
+                       "key": "status",
+                       "action": "setitem"}:
+                background_running.set()
+            if mod["path"] == [1] or (mod["path"] == [] and mod["key"] == 1):
+                self.assertEqual(mod, expect[expect_idx])
+                expect_idx += 1
+                if expect_idx >= len(expect):
+                    done.set()
+        scheduler.notifier.publish = notify
+
+        scheduler.start()
+        scheduler.submit("main", expid_bg, -99, None, False)
+        loop.run_until_complete(background_running.wait())
+        scheduler.submit("main", expid, 0, None, False)
+        loop.run_until_complete(done.wait())
+        loop.run_until_complete(scheduler.stop())
+
+    def test_flush(self):
+        loop = self.loop
+        scheduler = Scheduler(0, _handlers)
+        expid = _get_expid("EmptyExperiment")
+
+        expect = _get_basic_steps(1, expid, 1, True)
+        expect.insert(1, {"key": "status",
+                          "path": [1],
+                          "value": "flushing",
+                          "action": "setitem"})
+        first_preparing = asyncio.Event()
+        done = asyncio.Event()
+        expect_idx = 0
+        def notify(mod):
+            nonlocal expect_idx
+            if mod == {"path": [0],
+                       "value": "preparing",
+                       "key": "status",
+                       "action": "setitem"}:
+                first_preparing.set()
+            if mod["path"] == [1] or (mod["path"] == [] and mod["key"] == 1):
+                self.assertEqual(mod, expect[expect_idx])
+                expect_idx += 1
+                if expect_idx >= len(expect):
+                    done.set()
+        scheduler.notifier.publish = notify
+
+        scheduler.start()
+        scheduler.submit("main", expid, 0, None, False)
+        loop.run_until_complete(first_preparing.wait())
+        scheduler.submit("main", expid, 1, None, True)
+        loop.run_until_complete(done.wait())
+        loop.run_until_complete(scheduler.stop())
+
+    def tearDown(self):
+        self.loop.close()

artiq/test/sync_struct.py

@@ -0,0 +1,82 @@
+import unittest
+import asyncio
+import numpy as np
+
+from artiq.protocols import sync_struct
+
+test_address = "::1"
+test_port = 7777
+
+
+@asyncio.coroutine
+def write_test_data(test_dict):
+    test_values = [5, 2.1, None, True, False,
+                   {"a": 5, 2: np.linspace(0, 10, 1)},
+                   (4, 5), (10,), "ab\nx\"'"]
+    for i in range(10):
+        test_dict[str(i)] = i
+    for key, value in enumerate(test_values):
+        test_dict[key] = value
+    test_dict[1.5] = 1.5
+    test_dict["array"] = []
+    test_dict["array"].append(42)
+    test_dict["array"].insert(1, 1)
+    test_dict[100] = 0
+    test_dict[100] = 1
+    test_dict[101] = 1
+    test_dict.pop(101)
+    test_dict[102] = 1
+    del test_dict[102]
+    test_dict["finished"] = True
+
+
+@asyncio.coroutine
+def start_server(publisher_future, test_dict_future):
+    test_dict = sync_struct.Notifier(dict())
+    publisher = sync_struct.Publisher(
+        {"test": test_dict})
+    yield from publisher.start(test_address, test_port)
+    publisher_future.set_result(publisher)
+    test_dict_future.set_result(test_dict)
+
+
+class SyncStructCase(unittest.TestCase):
+    def init_test_dict(self, init):
+        self.test_dict = init
+        return init
+
+    def notify(self, mod):
+        if ((mod["action"] == "init" and "finished" in mod["struct"])
+                or (mod["action"] == "setitem" and mod["key"] == "finished")):
+            self.receiving_done.set()
+
+    def setUp(self):
+        self.loop = asyncio.new_event_loop()
+        asyncio.set_event_loop(self.loop)
+
+    def test_recv(self):
+        loop = self.loop
+        self.receiving_done = asyncio.Event()
+        publisher = asyncio.Future()
+        test_dict = asyncio.Future()
+        asyncio.async(start_server(publisher, test_dict))
+        loop.run_until_complete(publisher)
+        loop.run_until_complete(test_dict)
+
+        self.publisher = publisher.result()
+        test_dict = test_dict.result()
+        test_vector = dict()
+        loop.run_until_complete(write_test_data(test_vector))
+
+        asyncio.async(write_test_data(test_dict))
+        self.subscriber = sync_struct.Subscriber("test", self.init_test_dict,
+                                                 self.notify)
+        loop.run_until_complete(self.subscriber.connect(test_address,
+                                                        test_port))
+        loop.run_until_complete(self.receiving_done.wait())
+        self.assertEqual(self.test_dict, test_vector)
+        self.loop.run_until_complete(self.subscriber.close())
+        self.loop.run_until_complete(self.publisher.stop())
+
+    def tearDown(self):
+        self.loop.close()

artiq/test/thorlabs_tcube.py

@@ -1,9 +1,9 @@
 import unittest
-import os
 import time
 
 from artiq.devices.thorlabs_tcube.driver import Tdc, Tpz, TdcSim, TpzSim
 from artiq.language.units import V
+from artiq.test.hardware_testbench import get_from_ddb
 
 
 class GenericTdcTest:
@@ -88,7 +88,7 @@ class GenericTpzTest:
 
     def test_ouput_volts(self):
         for voltage in 5*V, 10*V, 15*V, \
-                round(self.cont.get_tpz_io_settings()[0].amount)*V:
+                round(self.cont.get_tpz_io_settings()[0])*V:
             with self.subTest(voltage=voltage):
                 test_vector = voltage
                 self.cont.set_output_volts(test_vector)
@@ -131,12 +131,9 @@ class GenericTpzTest:
                 self.assertEqual(test_vector, self.cont.get_tpz_io_settings())
 
 
-tdc_serial = os.getenv("ARTIQ_TDC_SERIAL")
-
-
-@unittest.skipUnless(tdc_serial, "no hardware")
 class TestTdc(unittest.TestCase, GenericTdcTest):
     def setUp(self):
+        tdc_serial = get_from_ddb("tdc", "device")
         self.cont = Tdc(serial_dev=tdc_serial)
 
 
@@ -145,12 +142,9 @@ class TestTdcSim(unittest.TestCase, GenericTdcTest):
         self.cont = TdcSim()
 
 
-tpz_serial = os.getenv("ARTIQ_TPZ_SERIAL")
-
-
-@unittest.skipUnless(tpz_serial, "no hardware")
 class TestTpz(unittest.TestCase, GenericTpzTest):
     def setUp(self):
+        tpz_serial = get_from_ddb("tpz", "device")
         self.cont = Tpz(serial_dev=tpz_serial)
 
 

artiq/test/transforms.py

@@ -6,28 +6,20 @@ from artiq.coredevice import comm_dummy, core
 from artiq.transforms.unparse import unparse
 
 
-# Original code before inline:
-#
-# n = time_to_cycles(1.2345*ns)
-# ftw = self.dds.frequency_to_ftw(345*MHz)
-# f = self.dds.ftw_to_frequency(ftw)
-# phi = 1000*cycles_to_time(n)*f
-# do_someting(int(phi))
-#
 optimize_in = """
 
 def run():
-    dds_sysclk = Quantity(Fraction(1000000000, 1), 'Hz')
-    n = time_to_cycles((1.2345 * Quantity(Fraction(1, 1000000000), 's')))
+    dds_sysclk = Fraction(1000000000, 1)
+    n = seconds_to_mu((1.2345 * Fraction(1, 1000000000)))
     with sequential:
-        frequency = (345 * Quantity(Fraction(1000000, 1), 'Hz'))
+        frequency = 345 * Fraction(1000000, 1)
         frequency_to_ftw_return = int((((2 ** 32) * frequency) / dds_sysclk))
     ftw = frequency_to_ftw_return
     with sequential:
         ftw2 = ftw
         ftw_to_frequency_return = ((ftw2 * dds_sysclk) / (2 ** 32))
     f = ftw_to_frequency_return
-    phi = ((1000 * cycles_to_time(n)) * f)
+    phi = ((1000 * mu_to_seconds(n)) * f)
     do_something(int(phi))
 """
 
@@ -44,7 +36,9 @@ def run():
 
 class OptimizeCase(unittest.TestCase):
     def test_optimize(self):
-        coredev = core.Core(comm=comm_dummy.Comm(), ref_period=1*ns)
+        dmgr = dict()
+        dmgr["comm"] = comm_dummy.Comm(dmgr)
+        coredev = core.Core(dmgr, ref_period=1*ns)
         func_def = ast.parse(optimize_in).body[0]
         coredev.transform_stack(func_def, dict(), dict())
         self.assertEqual(unparse(func_def), optimize_out)

artiq/test/worker.py

@@ -7,20 +7,26 @@ from artiq import *
 from artiq.master.worker import *
 
 
-class WatchdogNoTimeout(Experiment, AutoDB):
+class WatchdogNoTimeout(EnvExperiment):
+    def build(self):
+        pass
+
     def run(self):
         for i in range(10):
             with watchdog(0.5*s):
                 sleep(0.1)
 
 
-class WatchdogTimeout(Experiment, AutoDB):
+class WatchdogTimeout(EnvExperiment):
+    def build(self):
+        pass
+
     def run(self):
         with watchdog(0.1*s):
             sleep(100.0)
 
 
-class WatchdogTimeoutInBuild(Experiment, AutoDB):
+class WatchdogTimeoutInBuild(EnvExperiment):
     def build(self):
         with watchdog(0.1*s):
             sleep(100.0)
@@ -31,30 +37,31 @@ class WatchdogTimeoutInBuild(Experiment, AutoDB):
 
 @asyncio.coroutine
 def _call_worker(worker, expid):
-    yield from worker.prepare(0, "main", expid, 0)
     try:
+        yield from worker.build(0, "main", expid, 0)
+        yield from worker.prepare()
         yield from worker.run()
         yield from worker.analyze()
     finally:
         yield from worker.close()
 
 
-def _run_experiment(experiment):
+def _run_experiment(class_name):
     expid = {
         "file": sys.modules[__name__].__file__,
-        "experiment": experiment,
+        "class_name": class_name,
         "arguments": dict()
     }
-    handlers = {
-        "init_rt_results": lambda description: None
-    }
-
-    worker = Worker(handlers)
     loop = asyncio.get_event_loop()
+    worker = Worker()
     loop.run_until_complete(_call_worker(worker, expid))
 
 
 class WatchdogCase(unittest.TestCase):
+    def setUp(self):
+        self.loop = asyncio.new_event_loop()
+        asyncio.set_event_loop(self.loop)
+
     def test_watchdog_no_timeout(self):
         _run_experiment("WatchdogNoTimeout")
 
@@ -65,3 +72,6 @@ class WatchdogCase(unittest.TestCase):
     def test_watchdog_timeout_in_build(self):
         with self.assertRaises(WorkerWatchdogTimeout):
             _run_experiment("WatchdogTimeoutInBuild")
+
+    def tearDown(self):
+        self.loop.close()

artiq/tools.py

@@ -7,7 +7,7 @@ import asyncio
 import time
 import os.path
 
-from artiq.language.experiment import is_experiment
+from artiq.language.environment import is_experiment
 from artiq.protocols import pyon
 
 
@@ -18,15 +18,6 @@ def parse_arguments(arguments):
         d[name] = pyon.decode(value)
     return d
 
-def format_arguments(arguments):
-    fmtargs = []
-    for k, v in sorted(arguments.items(), key=itemgetter(0)):
-        fmtargs.append(k + "=" + repr(v))
-    if fmtargs:
-        return ", ".join(fmtargs)
-    else:
-        return ""
-
 
 def file_import(filename):
     linecache.checkcache(filename)
@@ -90,12 +81,21 @@ def asyncio_process_wait_timeout(process, timeout):
     # causes a futures.InvalidStateError inside asyncio if and when the
     # process terminates after the timeout.
     # Work around this problem.
-    end_time = time.monotonic() + timeout
+    @asyncio.coroutine
+    def process_wait_returncode_timeout():
+        while True:
+            if process.returncode is not None:
+                break
+            yield from asyncio.sleep(0.1)
+    yield from asyncio.wait_for(process_wait_returncode_timeout(),
+                                timeout=timeout)
+
+@asyncio.coroutine
+def asyncio_process_wait(process):
     r = True
     while r:
-        r = yield from asyncio.wait_for(
-                process.stdout.read(1024),
-                timeout=end_time - time.monotonic())
+        f, p = yield from asyncio.wait([process.stdout.read(1024)])
+        r = f.pop().result()
 
 
 @asyncio.coroutine
@@ -119,3 +119,42 @@ def asyncio_queue_peek(q):
         return q._queue[0]
     else:
         raise asyncio.QueueEmpty
+
+
+class TaskObject:
+    def start(self):
+        self.task = asyncio.async(self._do())
+
+    @asyncio.coroutine
+    def stop(self):
+        self.task.cancel()
+        yield from asyncio.wait([self.task])
+        del self.task
+
+    @asyncio.coroutine
+    def _do(self):
+        raise NotImplementedError
+
+
+class WaitSet:
+    def __init__(self):
+        self._s = set()
+        self._ev = asyncio.Event()
+
+    def _update_ev(self):
+        if self._s:
+            self._ev.clear()
+        else:
+            self._ev.set()
+
+    def add(self, e):
+        self._s.add(e)
+        self._update_ev()
+
+    def discard(self, e):
+        self._s.discard(e)
+        self._update_ev()
+
+    @asyncio.coroutine
+    def wait_empty(self):
+        yield from self._ev.wait()

artiq/transforms/interleave.py

@@ -28,13 +28,14 @@ def _get_duration(stmt):
             return -1
     elif isinstance(stmt, ast.Call):
         name = stmt.func.id
-        if name == "delay":
+        assert(name != "delay")
+        if name == "delay_mu":
             try:
                 da = eval_constant(stmt.args[0])
             except NotConstant:
                 da = -1
             return da
-        elif name == "at":
+        elif name == "at_mu":
             return -1
         else:
             return 0
@@ -69,7 +70,7 @@ def _interleave_timelines(timelines):
                     ref_stmt = stmt.stmt
             delay_stmt = ast.copy_location(
                 ast.Expr(ast.Call(
-                    func=ast.Name("delay", ast.Load()),
+                    func=ast.Name("delay_mu", ast.Load()),
                     args=[value_to_ast(dt)],
                     keywords=[], starargs=[], kwargs=[])),
                 ref_stmt)

artiq/transforms/lower_time.py

@@ -1,15 +1,15 @@
 """
-This transform implements time management functions (delay/now/at)
+This transform implements time management functions (delay_mu/now_mu/at_mu)
 using an accumulator 'now' and simple replacement rules:
 
-    delay(t) ->  now += t
-    now()    ->  now
-    at(t)    ->  now = t
+    delay_mu(t) ->  now += t
+    now_mu()    ->  now
+    at_mu(t)    ->  now = t
 
-Time parameters must be quantized to integers before running this transform.
+The function delay(), that uses seconds, must be lowered to delay_mu() before
+invoking this transform.
 The accumulator is initialized to an int64 value at the beginning of the
 output function.
-
 """
 
 import ast
@@ -17,7 +17,7 @@ import ast
 
 class _TimeLowerer(ast.NodeTransformer):
     def visit_Call(self, node):
-        if node.func.id == "now":
+        if node.func.id == "now_mu":
             return ast.copy_location(ast.Name("now", ast.Load()), node)
         else:
             self.generic_visit(node)
@@ -27,13 +27,13 @@ class _TimeLowerer(ast.NodeTransformer):
         r = node
         if isinstance(node.value, ast.Call):
             funcname = node.value.func.id
-            if funcname == "delay":
+            if funcname == "delay_mu":
                 r = ast.copy_location(
                     ast.AugAssign(target=ast.Name("now", ast.Store()),
                                   op=ast.Add(),
                                   value=node.value.args[0]),
                     node)
-            elif funcname == "at":
+            elif funcname == "at_mu":
                 r = ast.copy_location(
                     ast.Assign(targets=[ast.Name("now", ast.Store())],
                                value=node.value.args[0]),

artiq/transforms/lower_units.py

@@ -1,190 +0,0 @@
-import ast
-from collections import defaultdict
-from copy import copy
-
-from artiq.language import units
-from artiq.transforms.tools import embeddable_func_names
-
-
-def _add_units(f, unit_list):
-    def wrapper(*args):
-        new_args = []
-        for arg, unit in zip(args, unit_list):
-            if unit is None:
-                new_args.append(arg)
-            else:
-                if isinstance(arg, list):
-                    new_args.append([units.Quantity(x, unit) for x in arg])
-                else:
-                    new_args.append(units.Quantity(arg, unit))
-        return f(*new_args)
-    return wrapper
-
-
-class _UnitsLowerer(ast.NodeTransformer):
-    def __init__(self, rpc_map):
-        self.rpc_map = rpc_map
-        # (original rpc number, (unit list)) -> new rpc number
-        self.rpc_remap = defaultdict(lambda: len(self.rpc_remap))
-        self.variable_units = dict()
-
-    def visit_Name(self, node):
-        try:
-            unit = self.variable_units[node.id]
-        except KeyError:
-            pass
-        else:
-            if unit is not None:
-                node.unit = unit
-        return node
-
-    def visit_BoolOp(self, node):
-        self.generic_visit(node)
-        us = [getattr(value, "unit", None) for value in node.values]
-        if not all(u == us[0] for u in us[1:]):
-            raise units.DimensionError
-        return node
-
-    def visit_Compare(self, node):
-        self.generic_visit(node)
-        u0 = getattr(node.left, "unit", None)
-        us = [getattr(comparator, "unit", None)
-              for comparator in node.comparators]
-        if not all(u == u0 for u in us):
-            raise units.DimensionError
-        return node
-
-    def visit_UnaryOp(self, node):
-        self.generic_visit(node)
-        if hasattr(node.operand, "unit"):
-            node.unit = node.operand.unit
-        return node
-
-    def visit_BinOp(self, node):
-        self.generic_visit(node)
-        op = type(node.op)
-        left_unit = getattr(node.left, "unit", None)
-        right_unit = getattr(node.right, "unit", None)
-        if op in (ast.Add, ast.Sub, ast.Mod):
-            unit = units.addsub_dimension(left_unit, right_unit)
-        elif op == ast.Mult:
-            unit = units.mul_dimension(left_unit, right_unit)
-        elif op in (ast.Div, ast.FloorDiv):
-            unit = units.div_dimension(left_unit, right_unit)
-        else:
-            if left_unit is not None or right_unit is not None:
-                raise units.DimensionError
-            unit = None
-        if unit is not None:
-            node.unit = unit
-        return node
-
-    def visit_Attribute(self, node):
-        self.generic_visit(node)
-        if node.attr == "amount" and hasattr(node.value, "unit"):
-            del node.value.unit
-            return node.value
-        else:
-            return node
-
-    def visit_List(self, node):
-        self.generic_visit(node)
-        if node.elts:
-            us = [getattr(elt, "unit", None) for elt in node.elts]
-            if not all(u == us[0] for u in us[1:]):
-                raise units.DimensionError
-            node.unit = us[0]
-        return node
-
-    def visit_ListComp(self, node):
-        self.generic_visit(node)
-        if hasattr(node.elt, "unit"):
-            node.unit = node.elt.unit
-        return node
-
-    def visit_Call(self, node):
-        self.generic_visit(node)
-        if node.func.id == "Quantity":
-            amount, unit = node.args
-            amount.unit = unit.s
-            return amount
-        elif node.func.id in ("now", "cycles_to_time"):
-            node.unit = "s"
-        elif node.func.id == "syscall":
-            # only RPCs can have units
-            if node.args[0].s == "rpc":
-                unit_list = tuple(getattr(arg, "unit", None)
-                                  for arg in node.args[2:])
-                rpc_n = node.args[1].n
-                node.args[1].n = self.rpc_remap[(rpc_n, (unit_list))]
-            else:
-                if any(hasattr(arg, "unit") for arg in node.args):
-                    raise units.DimensionError
-        elif node.func.id in ("delay", "at", "time_to_cycles", "watchdog"):
-            if getattr(node.args[0], "unit", None) != "s":
-                raise units.DimensionError
-        elif node.func.id == "check_unit":
-            self.generic_visit(node)
-        elif node.func.id in embeddable_func_names:
-            # must be last (some embeddable funcs may have units)
-            if any(hasattr(arg, "unit") for arg in node.args):
-                raise units.DimensionError
-        return node
-
-    def visit_Expr(self, node):
-        self.generic_visit(node)
-        if (isinstance(node.value, ast.Call)
-                and node.value.func.id == "check_unit"):
-            call = node.value
-            if (isinstance(call.args[1], ast.NameConstant)
-                    and call.args[1].value is None):
-                if hasattr(call.value.args[0], "unit"):
-                    raise units.DimensionError
-            elif isinstance(call.args[1], ast.Str):
-                if getattr(call.args[0], "unit", None) != call.args[1].s:
-                    raise units.DimensionError
-            else:
-                raise NotImplementedError
-            return None
-        else:
-            return node
-
-    def _update_target(self, target, unit):
-        if isinstance(target, ast.Name):
-            if target.id in self.variable_units:
-                if self.variable_units[target.id] != unit:
-                    raise TypeError(
-                        "Inconsistent units for variable '{}': '{}' and '{}'"
-                        .format(target.id,
-                                self.variable_units[target.id],
-                                unit))
-            else:
-                self.variable_units[target.id] = unit
-
-    def visit_Assign(self, node):
-        node.value = self.visit(node.value)
-        unit = getattr(node.value, "unit", None)
-        for target in node.targets:
-            self._update_target(target, unit)
-        return node
-
-    def visit_AugAssign(self, node):
-        value = self.visit_BinOp(ast.BinOp(
-            op=node.op, left=node.target, right=node.value))
-        unit = getattr(value, "unit", None)
-        self._update_target(node.target, unit)
-        return node
-
-    # Only dimensionless iterators are supported
-    def visit_For(self, node):
-        self.generic_visit(node)
-        self._update_target(node.target, None)
-        return node
-
-
-def lower_units(func_def, rpc_map):
-    ul = _UnitsLowerer(rpc_map)
-    ul.visit(func_def)
-    original_map = copy(rpc_map)
-    for (original_rpcn, unit_list), new_rpcn in ul.rpc_remap.items():
-        rpc_map[new_rpcn] = _add_units(original_map[original_rpcn], unit_list)

artiq/transforms/quantize_time.py

@@ -1,12 +1,12 @@
 """
-This transform turns calls to delay/now/at that use non-integer time
-expressed in seconds into calls that use int64 time expressed in multiples of
-ref_period.
+This transform turns calls to delay() that use non-integer time
+expressed in seconds into calls to delay_mu() that use int64 time
+expressed in multiples of ref_period.
 
 It does so by inserting multiplication/division/rounding operations around
 those calls.
 
-The time_to_cycles and cycles_to_time core language functions are also
+The seconds_to_mu and mu_to_seconds core language functions are also
 implemented here, as well as watchdog to syscall conversion.
 """
 
@@ -15,14 +15,7 @@ import ast
 from artiq.transforms.tools import value_to_ast
 
 
-def _call_now(node):
-    return ast.copy_location(
-        ast.Call(func=ast.Name("now", ast.Load()),
-                 args=[], keywords=[], starargs=[], kwargs=[]),
-        node)
-
-
-def _time_to_cycles(ref_period, node):
+def _seconds_to_mu(ref_period, node):
     divided = ast.copy_location(
         ast.BinOp(left=node,
                   op=ast.Div(),
@@ -35,7 +28,7 @@ def _time_to_cycles(ref_period, node):
         divided)
 
 
-def _cycles_to_time(ref_period, node):
+def _mu_to_seconds(ref_period, node):
     return ast.copy_location(
         ast.BinOp(left=node,
                   op=ast.Mult(),
@@ -50,29 +43,22 @@ class _TimeQuantizer(ast.NodeTransformer):
 
     def visit_Call(self, node):
         funcname = node.func.id
-        if funcname == "now":
-            return _cycles_to_time(self.ref_period, _call_now(node))
-        elif funcname == "delay" or funcname == "at":
+        if funcname == "delay":
+            node.func.id = "delay_mu"
             if (isinstance(node.args[0], ast.Call)
-                    and node.args[0].func.id == "cycles_to_time"):
+                    and node.args[0].func.id == "mu_to_seconds"):
                 # optimize:
-                # delay/at(cycles_to_time(x)) -> delay/at(x)
+                # delay(mu_to_seconds(x)) -> delay_mu(x)
                 node.args[0] = self.visit(node.args[0].args[0])
             else:
-                node.args[0] = _time_to_cycles(self.ref_period,
+                node.args[0] = _seconds_to_mu(self.ref_period,
                                               self.visit(node.args[0]))
             return node
-        elif funcname == "time_to_cycles":
-            if (isinstance(node.args[0], ast.Call)
-                    and node.args[0].func.id == "now"):
-                # optimize:
-                # time_to_cycles(now()) -> now()
-                return _call_now(node)
-            else:
-                return _time_to_cycles(self.ref_period,
+        elif funcname == "seconds_to_mu":
+                return _seconds_to_mu(self.ref_period,
                                        self.visit(node.args[0]))
-        elif funcname == "cycles_to_time":
-            return _cycles_to_time(self.ref_period,
+        elif funcname == "mu_to_seconds":
+            return _mu_to_seconds(self.ref_period,
                                    self.visit(node.args[0]))
         else:
             self.generic_visit(node)
@@ -123,6 +109,5 @@ class _TimeQuantizer(ast.NodeTransformer):
         return node
 
 
-
 def quantize_time(func_def, ref_period):
     _TimeQuantizer(ref_period).visit(func_def)

artiq/transforms/tools.py

@@ -6,12 +6,13 @@ from artiq.language import units
 
 
 embeddable_funcs = (
-    core_language.delay, core_language.at, core_language.now,
-    core_language.time_to_cycles, core_language.cycles_to_time,
+    core_language.delay_mu, core_language.at_mu, core_language.now_mu,
+    core_language.delay,
+    core_language.seconds_to_mu, core_language.mu_to_seconds,
     core_language.syscall, core_language.watchdog,
     range, bool, int, float, round, len,
     core_language.int64, core_language.round64,
-    Fraction, units.Quantity, units.check_unit, core_language.EncodedException
+    Fraction, core_language.EncodedException
 )
 embeddable_func_names = {func.__name__ for func in embeddable_funcs}
 
@@ -61,11 +62,6 @@ def value_to_ast(value):
         for kg in core_language.kernel_globals:
             if value is getattr(core_language, kg):
                 return ast.Name(kg, ast.Load())
-        if isinstance(value, units.Quantity):
-            return ast.Call(
-                func=ast.Name("Quantity", ast.Load()),
-                args=[value_to_ast(value.amount), ast.Str(value.unit)],
-                keywords=[], starargs=None, kwargs=None)
         raise NotASTRepresentable(str(value))
 
 
@@ -88,14 +84,6 @@ def eval_constant(node):
             numerator = eval_constant(node.args[0])
             denominator = eval_constant(node.args[1])
             return Fraction(numerator, denominator)
-        elif funcname == "Quantity":
-            amount, unit = node.args
-            amount = eval_constant(amount)
-            try:
-                unit = getattr(units, unit.id)
-            except:
-                raise NotConstant
-            return units.Quantity(amount, unit)
         else:
             raise NotConstant
     else:
@@ -105,8 +93,7 @@ def eval_constant(node):
 _replaceable_funcs = {
     "bool", "int", "float", "round",
     "int64", "round64", "Fraction",
-    "time_to_cycles", "cycles_to_time",
-    "Quantity"
+    "seconds_to_mu", "mu_to_seconds"
 }