class DigitalValue(Readable):
attached_devices = {
'iodev': Attach('IO Device', VSDIO),
}
parameters = {
'channel':
Param('Channel for readout',
type=oneof(*VSDIO._HW_DigitalChannels),
settable=True,
preinit=True),
'mapping':
Param('Mapping of 0/1 to sensible strings',
type=dictof(str, oneof(0, 1)),
mandatory=True),
}
parameter_overrides = {
'unit': Override(mandatory=False, settable=False, default=''),
}
def doInit(self, mode):
self._revmapping = {v: k for k, v in self.mapping.items()}
def doRead(self, maxage=0):
ofs, bit = self._attached_iodev._HW_DigitalChannels[self.channel]
# ofs is in Bytes, we need it in words! => /2
if self._attached_iodev._readU16(ofs // 2) & (1 << bit):
return self._revmapping[1]
return self._revmapping[0]
def doStatus(self, maxage=0):
return status.OK, ''
class BeamStopAxis(Axis):
"""special Axis, which always has an offset of 0
"""
parameter_overrides = {
'fixed': Override(type=oneof(''), default=''),
'offset': Override(type=oneof(0.0), default=0.0),
'lowlevel': Override(default=True),
'maxtries': Override(default=1000, settable=False),
}
def doInit(self, mode):
Axis.doInit(self, mode)
if self.maxtries < 1000:
self._setROParam('maxtries', 1000)
self._setROParam('userlimits', self.abslimits)
if mode not in (SIMULATION, SLAVE
) and self._attached_motor.status()[0] != status.BUSY:
self._attached_motor.doSetPosition(self._attached_coder.read())
self._attached_motor.userlimits = self._attached_motor.abslimits
def doReadOffset(self):
return 0.
def doWriteOffset(self, value):
return 0.
def doReadUserlimits(self):
return Axis.doReadAbslimits(self)
class ComtecCounter(CounterChannelMixin, TacoBaseChannel, PassiveChannel):
taco_class = Counter
parameter_overrides = {
'type': Override(type=oneof('counter'), mandatory=False,
default='counter'),
'mode': Override(type=oneof('normal'), mandatory=False,
default='normal'),
'fmtstr': Override(default='%d'),
}
def doReadMode(self):
return 'normal'
def doWriteMode(self, value):
return 'normal'
def doReadIsmaster(self):
return False
def doWriteIsmaster(self, value):
return False
def valueInfo(self):
return Value(self.name, unit='cts', errors='sqrt',
type='counter', fmtstr='%d'),
class VirtualCounter(VirtualChannel):
"""A virtual counter channel for use together with
`nicos.devices.generic.detector.Detector`.
"""
parameters = {
'countrate': Param('The maximum countrate', type=float, default=1000.,
settable=False),
'gentype': Param('Type of generating function',
type=oneof('const', 'gauss'), default='gauss',
settable=False),
'type': Param('Type of channel: monitor or counter',
type=oneof('monitor', 'counter'), mandatory=True),
}
parameter_overrides = {
'unit': Override(default='cts'),
'fmtstr': Override(default='%d'),
}
def doInit(self, mode):
VirtualChannel.doInit(self, mode)
self._fcurrent = 0.
if self.gentype == 'const':
self._generator = lambda x: self.countrate * x
elif self.gentype == 'gauss':
self._generator = lambda x: normal(loc=self.countrate,
scale=self.countrate / 10.) * x
def doStart(self):
self._fcurrent = 0.
VirtualChannel.doStart(self)
def _counting(self):
self.log.debug('counting to %d cts with %d cts/s',
self.preselection, self.countrate)
try:
while not self._stopflag:
if self.ismaster and self.curvalue >= self.preselection:
self.curvalue = self.preselection
break
time.sleep(self._base_loop_delay)
self._fcurrent += max(0, self._generator(self._base_loop_delay))
self.curvalue = int(self._fcurrent)
finally:
self.curstatus = (status.OK, 'idle')
def doSimulate(self, preset):
if self.ismaster:
return [self.preselection]
return [random.randint(0, self.countrate)]
def valueInfo(self):
return Value(self.name, unit='cts', errors='sqrt', type=self.type,
fmtstr='%d'),
class CryopadPol(Moveable):
"""Controls the incoming or outgoing polarization direction."""
attached_devices = {
'cryopad': Attach('Underlying Cryopad device', BaseCryopad)
}
parameters = {
'side':
Param('Which side of the instrument is this device?',
type=oneof('in', 'out'),
mandatory=True),
}
parameter_overrides = {
'unit': Override(mandatory=False, default=''),
}
valuetype = oneof('+x', '-x', '+y', '-y', '+z', '-z')
def doRead(self, maxage=0):
# NOTE: for now, we just return the latest target because it became
# necessary to introduce corrections to nutator angles that cannot yet
# be included reliably in the calculations, and would change the readout
# here to "unknown".
return self.target
# cppos = self._attached_cryopad.read(maxage)
# theta, chi = cppos[0:2] if self.side == 'in' else cppos[2:4]
# for (pos, (goaltheta, goalchi)) in calc.DIRECTIONS.items():
# # fix chi = -179.5, goalchi = 180 situation
# diffchi = abs(chi - goalchi)
# chiok = diffchi < 0.5 or 359.5 < diffchi < 360.5
# # XXX: make precision configurable
# if abs(theta - goaltheta) < 0.5 and chiok:
# return pos
# return 'unknown'
def doStatus(self, maxage=0):
st, text = multiStatus(self._adevs)
if st == status.BUSY:
return st, text
if self.read(maxage) == 'unknown':
return status.NOTREACHED, 'unknown polarization setting'
return status.OK, 'idle'
def doStart(self, pos):
theta_chi = calc.DIRECTIONS[pos]
cppos = self._attached_cryopad.target or (0, 0, 0, 0)
if self.side == 'in':
target = tuple(theta_chi) + cppos[2:4]
else:
target = cppos[0:2] + tuple(theta_chi)
self._attached_cryopad.start(target)
class Andor3LimaCCD(GenericLimaCCD):
"""
This device class is an extension to the GenericLimaCCD that adds the
hardware specific functionality for all Andor SDK3 based cameras.
"""
READOUTRATES = [280, 200, 100] # Values from sdk manual
ELSHUTTERMODES = ['rolling', 'global'] # Values from sdk manual
parameters = {
'readoutrate':
Param('Rate of pixel readout from sensor',
type=oneof(*READOUTRATES),
unit='MHz',
settable=True,
volatile=True,
category='general'),
'elshuttermode':
Param('On-sensor electronic shuttering mode',
type=oneof(*ELSHUTTERMODES),
settable=True,
volatile=True,
category='general'),
'framerate':
Param('Frame rate',
type=float,
unit='Hz',
settable=False,
volatile=True,
category='general'),
}
def doInfo(self):
for p in ('readoutrate', 'elshuttermode', 'framerate'):
self._pollParam(p)
return []
def doReadReadoutrate(self):
return int(self._hwDev._dev.adc_rate[3:])
def doWriteReadoutrate(self, value):
self._hwDev._dev.adc_rate = 'MHZ%i' % value
def doReadElshuttermode(self):
return self._hwDev._dev.electronic_shutter_mode.lower()
def doWriteElshuttermode(self, value):
self._hwDev._dev.electronic_shutter_mode = value.upper()
def doReadFramerate(self):
return self._hwDev._dev.frame_rate
def doInit(self, mode):
MultiSwitcher.doInit(self, mode)
if len(self._attached_moveables) != 5:
raise ConfigurationError(self, 'must have exactly 5 moveables')
self._mot_rot, self._mot_xv, self._mot_yv, self._mot_xh, \
self._mot_yh = self._attached_moveables
self.valuetype = oneof(*sorted(self.mapping, key=num_sort))
class SdsRatemeter(JsonBase):
"""Read the count rates for the different input channels of the SDS."""
parameters = {
'channel':
Param('Channel to be rated',
type=oneof('a', 'x', 'y'),
default='a',
settable=False)
}
parameter_overrides = {
'fmtstr': Override(default='%d'),
'unit': Override(default='cps'),
}
def doStatus(self, maxage=0):
try:
res = self._read_controller([self.valuekey])
if int(res[self.valuekey]) == 0:
return status.OK, ''
else:
return status.ERROR, 'System tripped! please clear'
except CommunicationError:
return status.WARN, 'Timeout during talk to the hardware.'
except NicosError:
return status.ERROR, 'Could not talk to hardware.'
def doRead(self, maxage=0):
res = self._read_controller(['mon_counts_cps_%s' % self.channel])
res = int(res.values()[0])
ret = int(res / 2.46)
self.log.info('system %dfoo countrate %dcps', res, ret)
return ret
def doInit(self, mode):
self.valuetype = oneof(*sorted(self.mapping, key=num_sort))
if len(self._attached_slits) != len(self.slitpos):
raise ConfigurationError(
self, 'number of elements in slitpos '
'parameter must match number of attached '
'slit devices')
class AsymmetricMagnet(HasTimeout, CurrentSupply):
"""Class for the asymmetric ccmsans.
Provides the ability to set the current field, and the asymmetry ratio.
"""
parameters = {
'asymmetry':
Param('Asymmetry ratio',
type=oneof(0.0, 0.11, 0.25, 0.39, 0.53, 0.70),
settable=True,
volatile=True),
}
parameter_overrides = {
# default timeout: doTime() + 5 mins
'timeout': Override(mandatory=False, default=300),
}
parameter_overrides = {
# max range * max ramp + 5'
'timeout': Override(mandatory=False, default=5400 + 300)
}
busystates = (status.BUSY, status.ERROR)
valuetype = float
def doReadAsymmetry(self):
return float(
self._taco_guard(self._dev.deviceQueryResource, 'asymmetry'))
def doWriteAsymmetry(self, value):
self._taco_update_resource('asymmetry', str(value))
class GeneratorDevice(AnalogOutput):
"""RF generator frequency and amplitude device."""
parameters = {
'shape':
Param('Wave shape',
type=oneof('sinusoid', 'square'),
settable=True,
category='general'),
'offset':
Param('Offset of zero point',
type=float,
settable=True,
category='offsets'),
}
def doReadShape(self):
return self._taco_guard(self._dev.deviceQueryResource, 'shape')
def doReadOffset(self):
return float(self._taco_guard(self._dev.deviceQueryResource, 'offset'))
def doWriteShape(self, val):
self._taco_update_resource('shape', val)
def doWriteOffset(self, val):
self._taco_update_resource('offset', str(val))
class TriangleAngle(HasOffset, TriangleMaster):
parameters = {
'index':
Param('index of return',
type=intrange(0, 1),
settable=False,
volatile=False,
userparam=False),
'scale':
Param('direction definition (-1, 1)',
type=oneof(-1, 1),
settable=False,
mandatory=True),
}
parameter_overrides = {
'offset': Override(type=floatrange(-2, 2)),
}
def doRead(self, maxage=0):
try:
self.log.debug('index: %d' % self.index)
res = self.offset + self.scale * self._read_controller(self.index)
self.log.debug('pos: %f' % res)
except IndexError:
res = 0
return res
def doInit(self, mode):
self.valuetype = oneof(*sorted(self.presets, key=num_sort))
self._waitdevs = []
self._aliases = {}
self._devpos = {}
for setting, values in self.presets.items():
values = dict(values)
try:
self._aliases[setting] = (values.pop('active_ap'),
values.pop('active_x'),
values.pop('active_y'))
except KeyError:
raise ConfigurationError(
self, 'setting %r needs active_ap, active_x and active_y '
'settings' % setting) from None
try:
for name in self._aliases[setting]:
session.getDevice(name)
except NicosError as exc:
raise ConfigurationError(
self,
'could not create/find alias targets for setting %r' %
setting) from exc
for key in values:
if key not in self.alloweddevs:
raise ConfigurationError(
self, 'device %s is not allowed '
'to be moved by sample_pos' % key)
self._devpos[setting] = values
class DLSCard(BaseImageChannel):
attached_devices = {
'wheels': Attach('The filter wheel positions', Readable,
multiple=True, optional=True),
}
parameters = {
'angles': Param('Scattering angles of the detector',
type=tupleof(float, float), mandatory=True,
settable=True),
'mode': Param('Measure mode', type=oneof(*MODES),
default='cross_cross', settable=True),
}
def _get_filters(self):
return ' '.join('%d' % wh.read() for wh in self._attached_wheels)
def setMode(self):
self._dev.readoutMode = self.mode
def readAbscissa(self):
return self._dev.abscissa
def readIntensity(self):
data = self._dev.intensity
return data.reshape((len(data) // 3, 3))
abscissa_arraydesc = ArrayDesc('data', shape=(264,), dtype='<f8')
intensity_arraydesc = ArrayDesc('data', shape=(100, 3), dtype='<f8')
class Frequency(AnalogOutput):
"""Device for RF generator frequency and frequency modulation settings."""
parameters = {
'deviation': Param('FM signal deviation', type=float, settable=True),
'modulationsource': Param('Modulation source', type=oneof('internal_1',
'internal_2',
'external_1',
'noise'),
settable=True),
'enablemodulation': Param('Enable frequency modulation', type=bool,
settable=True),
}
def doReadDeviation(self):
return self._dev.moddeviation
def doWriteDeviation(self, value):
self._dev.moddeviation = value
def doReadModulationsource(self):
return self._dev.modsource
def doWriteModulationsource(self, value):
self._dev.modsource = value
def doReadEnablemodulation(self):
return self._dev.modulation
def doWriteEnablemodulation(self, value):
self._dev.modulation = value
class Lenses(Moveable):
"""High-level lens control."""
valuetype = oneof(*LENS_CONFIGS)
hardware_access = False
attached_devices = {
'io': Attach('Lens I/O device', Moveable),
}
parameters = {
'values':
Param('Possible values (for GUI)',
internal=True,
type=listof(str),
default=LENS_CONFIGS),
}
parameter_overrides = {
'fmtstr': Override(default='%s'),
'unit': Override(mandatory=False, default=''),
}
def doRead(self, maxage=0):
lens_read = int(self._attached_io.read(maxage))
configs = [('in' if lens_read & (1 << i) else 'out') for i in range(3)]
return '-'.join(configs)
def doStart(self, target):
configs = [(v == 'in') for v in target.split('-')]
bits = configs[0] + 2 * configs[1] + 4 * configs[2]
self._attached_io.start(bits)
class BeamElement(HasTimeout, Moveable):
"""
Class for readout of the MIRA shutter via digital input card, and closing
the shutter via digital output (tied into Pilz security system).
"""
valuetype = oneof('in', 'out')
attached_devices = {
'valve': Attach('in/out pressure valve', Moveable),
'switch_in': Attach('limit switch for "in" position', Readable),
'switch_out': Attach('limit switch for "out" position', Readable),
}
parameter_overrides = {
'timeout': Override(default=10),
'unit': Override(mandatory=False, default=''),
}
def doStatus(self, maxage=0):
is_in = self._attached_switch_in.read(maxage)
is_out = self._attached_switch_out.read(maxage)
valvepos = self._attached_valve.read(maxage)
if (is_in and valvepos == 'in') or (is_out and valvepos == 'out'):
return status.OK, 'idle'
return status.BUSY, 'moving'
def doRead(self, maxage=0):
return self._attached_valve.read(maxage)
def doStart(self, target):
self._attached_valve.start(target)
def doReset(self):
multiReset(self._adevs)
class CounterChannelMixin(DeviceMixinBase):
"""Mixin for channels that return a single counts value."""
is_timer = False
parameters = {
'type':
Param('Type of channel: monitor or counter',
type=oneof('monitor', 'counter', 'other'),
mandatory=True),
}
parameter_overrides = {
'unit': Override(default='cts'),
'fmtstr': Override(default='%d'),
'preselection': Override(type=int),
}
def valueInfo(self):
return Value(self.name,
unit=self.unit,
errors='sqrt',
type=self.type,
fmtstr=self.fmtstr),
def doSimulate(self, preset):
if self.ismaster:
return [int(self.preselection)]
return [0]
class Experiment(FRM2Experiment):
"""Special RESEDA experiment with measurement mode support."""
parameters = {
'measurementmode': Param('Measurement mode',
type=oneof('nrse', 'mieze'), settable=True),
}
class TASConstant(Moveable):
"""
Common class for TAS k, E and lambda pseudo-devices.
"""
parameters = {
'scanmode': Param('Scanmode to set', type=oneof(*SCANMODES),
mandatory=True),
}
parameter_overrides = {
'unit': Override(volatile=True),
}
attached_devices = {
'base': Attach('Device to move (mono or ana)', Moveable),
'tas': Attach('The spectrometer for setting scanmode', TAS),
}
valuetype = float
hardware_access = False
def doStatus(self, maxage=0):
return self._attached_base.status(maxage)
def _getWaiters(self):
return [self._attached_base]
def _start(self, k):
# first drive there, to determine if it is within limits
tas = self._attached_tas
base = self._attached_base
pos = from_k(k, base.unit)
base.start(pos)
msg = False
if tas.scanmode != self.scanmode:
tas.scanmode = self.scanmode
msg = True
if tas.scanconstant != pos:
tas.scanconstant = pos
msg = True
return msg
def doReadUnit(self):
# needed for "does volatile param have a doRead" checking
raise NotImplementedError
def doStop(self):
self._attached_base.stop()
def fix(self, reason=''):
# fix the base as well, avoids surprises
Moveable.fix(self, reason)
return self._attached_base.fix(reason)
def release(self):
Moveable.release(self)
return self._attached_base.release()
class AmorExperiment(SinqExperiment):
"""Additional experiment parameters for AMOR"""
parameters = {
'mode': Param('Current mode of operation',
type=oneof('horizontal', 'deflector'), settable=True,
category='experiment'),
}
def doIsAllowed(self, target):
self.log.debug('doIsAllowed')
if isinstance(target, string_types):
try:
oneof('horizontal', '12mrad_b3_12.000', '12mrad_b2_12.254_eng',
'12mrad_b2_12.88_big', '12mrad_b3_13.268',
'12mrad_b3_789', '48mrad')(target)
return True, ''
except ValueError as e:
return False, str(e)
elif isinstance(target, number_types):
try:
floatrange(0, 48)(target)
return True, ''
except ValueError as e:
return False, str(e)
return False, 'Wrong value type'
class FPLCTrigger(HasTimeout, Moveable):
"""Trigger the FPLC flow and then wait for the sample to be
ready inside the cell.
Used as a sample environment device in kwscount().
"""
valuetype = oneof('triggered', 'waiting')
hardware_access = True
attached_devices = {
'output': Attach('start output to FPLC', Moveable),
'input': Attach('trigger input from FPLC', Readable),
}
parameters = {
'started': Param('Time when device was started',
internal=True, settable=True),
'triggered': Param('Time when input was triggered after a start',
internal=True, settable=True),
}
parameter_overrides = {
'fmtstr': Override(default='%s'),
'timeout': Override(default=120),
'unit': Override(mandatory=False, default=''),
}
def doInit(self, mode):
if mode == MASTER:
self.triggered = self.started = 0
def doStart(self, target):
if target == 'triggered':
self._attached_output.start(1)
sleep(0.1)
self._attached_output.start(0)
self.started = currenttime()
def doStatus(self, maxage=0):
if self.started:
if self.mode == MASTER and self._attached_input.read(maxage):
self.started = 0
self.triggered = currenttime()
return status.OK, 'triggered'
else:
return status.BUSY, 'waiting'
elif self.triggered:
if self.mode == MASTER and currenttime() > self.triggered + 5:
self.triggered = 0
return status.OK, 'triggered'
return status.OK, ''
def doRead(self, maxage=0):
if self.started:
return 'waiting'
return 'triggered'
class AnalogValue(Readable):
attached_devices = {
'iodev': Attach('IO Device', VSDIO),
}
parameters = {
'channel':
Param('Channel for readout',
type=oneof(*VSDIO._HW_AnalogChannels),
settable=True,
preinit=True),
}
parameter_overrides = {
'unit': Override(mandatory=False, volatile=True, settable=False),
}
def doReadUnit(self):
_ofs, _scale, unit = \
self._attached_iodev._HW_AnalogChannels[self.channel]
if unit == 'mA-foo':
unit = 'mA'
elif unit == 'V-foo':
unit = 'V'
return unit
def doRead(self, maxage=0):
ofs, scale, _unit = \
self._attached_iodev._HW_AnalogChannels[self.channel]
# ofs is in Bytes, we need it in words! => /2
if _unit == 'mA-foo':
raw = scale * self._attached_iodev._readU16(ofs // 2)
self.log.debug('mA-foo %.2f', raw)
# Work around bug in firmware
if raw > 20.0:
raw -= 615.37
self.log.debug('mA-foo %.2f', raw)
# Tested against Multimeter (2018-08-07)
raw /= 2.0
self.log.debug('mA-foo %.2f', raw)
elif _unit == 'V-foo':
raw = self._attached_iodev._readU16(ofs // 2)
self.log.debug('V-foo %d', raw)
# Work around bug in firmware
if raw > 0x8000:
raw -= 63536
self.log.debug('V-foo %d sign1', raw)
self.log.debug('V-foo %d sign', raw)
# Tested against Multimeter (2018-08-07)
raw /= 2.0
self.log.debug('v-foo %.2f /2.0', raw)
raw *= scale
self.log.debug('v-foo %.2f scale', raw)
else:
raw = scale * self._attached_iodev._readU16(ofs // 2)
return raw
def doStatus(self, maxage=0):
return status.OK, ''
class ImagingExperiment(Experiment, BaseImagingExperiment):
"""FRM II specific imaging experiment which provides all imaging experiment
functionalities plus all the FRM II specific features.
"""
parameters = {
'curimgtype':
Param('Type of current/next image',
type=oneof('dark', 'openbeam', 'standard'),
mandatory=False,
default='standard',
settable=True),
}
parameter_overrides = {
'dataroot': Override(default='/data/FRM-II'),
}
@property
def elogpath(self):
"""path to the eLogbook of the current experiment/sample"""
return path.join(self.proposalpath, 'logbook')
@property
def extrapaths(self):
paths = set(Experiment.extrapaths.fget(self))
paths.update(BaseImagingExperiment.extrapaths.fget(self))
if self.sampledir:
paths.add(path.join(self.samplepath, 'eval', 'recon'))
return tuple(paths)
@property
def customproposalsymlink(self):
if self.proptype == 'service':
return None
# construct user name
user = re.split('[,(<@]', self.users)[0].strip()
user = user if user else 'Unknown User'
date = time.strftime('%F').replace('-', '_')
return path.join(
self.proposalpath, '..',
safeName('%s-%s-%s-%s' % (date, user, self.proposal, self.title)))
def newSample(self, parameters):
name = parameters['name']
self.sampledir = safeName(name)
Experiment.newSample(self, parameters)
self.log.debug('new sample path: %s', self.samplepath)
self.log.debug('new data path: %s', self.datapath)
self.log.debug('new dark image path: %s', self.darkimagedir)
self.log.debug('new open beam image path: %s', self.openbeamdir)
self.log.debug('new measurement image path: %s', self.photodir)
class Polarizer(HasTimeout, Moveable):
"""Controls both the position of the polarizer and the spin flipper.
"""
valuetype = oneof(*POL_SETTINGS)
hardware_access = True
attached_devices = {
'output': Attach('output setter', Moveable),
'input_in': Attach('input for limit switch "in" position', Readable),
'input_out': Attach('input for limit switch "out" position', Readable),
'flipper': Attach('3He flipper', Moveable),
}
parameter_overrides = {
'fmtstr': Override(default='%s'),
'timeout': Override(default=10),
'unit': Override(mandatory=False, default=''),
}
parameters = {
'values':
Param('Possible values (for GUI)',
internal=True,
type=listof(str),
default=POL_SETTINGS),
}
def doStatus(self, maxage=0):
is_in = self._attached_input_in.read(maxage)
is_out = self._attached_input_out.read(maxage)
# check individual bits
if is_in ^ is_out != 3:
# inconsistent state, check switches
if ((is_in & 2) and (is_out & 2)) or \
((is_in & 1) and (is_out & 1)):
# both switches on?
return status.ERROR, 'both switches on for element(s)'
return status.BUSY, 'elements moving'
# HasTimeout will check for target reached
return self._attached_flipper.status(maxage)
def doRead(self, maxage=0):
is_in = self._attached_input_in.read(maxage)
if is_in == 3:
return self._attached_flipper.read()
elif is_in > 0:
return 'inconsistent'
return 'out'
def doStart(self, target):
if target == 'out':
self._attached_output.start(0)
else:
self._attached_output.start(3)
self._attached_flipper.start(target)
class Polarizer(Moveable):
"""Controls both the position of the polarizer and the spin flipper.
"""
valuetype = oneof(*POL_SETTINGS)
hardware_access = False
attached_devices = {
'switcher': Attach('polarizer in/out switch', Moveable),
'flipper': Attach('flipper', Moveable),
}
parameters = {
'values':
Param('Possible values (for GUI)',
internal=True,
type=listof(str),
default=POL_SETTINGS),
'switchervalues':
Param('Possible values for the switcher (out, in)',
type=tupleof(str, str),
default=('ng', 'pol')),
}
parameter_overrides = {
'fmtstr': Override(default='%s'),
'unit': Override(mandatory=False, default=''),
}
def doRead(self, maxage=0):
switcher_pos = self._attached_switcher.read(maxage)
flipper_pos = self._attached_flipper.read(maxage)
if switcher_pos == 'unknown' or flipper_pos == 'unknown':
return 'unknown'
if switcher_pos == self.switchervalues[0]:
return 'out'
# Polarizer is a transmission supermirror => without flipper we get
# the "down" polarization.
if flipper_pos == 'on':
return 'up'
return 'down'
def doStart(self, target):
switch_pos = self._attached_switcher.read(0)
if target == 'out':
if switch_pos != self.switchervalues[0]:
self._attached_switcher.start(self.switchervalues[0])
self._attached_flipper.start('off')
else:
if switch_pos != self.switchervalues[1]:
self._attached_switcher.start(self.switchervalues[1])
if target == 'up':
self._attached_flipper.start('on')
elif target == 'down':
self._attached_flipper.start('off')
def doInit(self, mode):
if not self._attached_moveable.isAllowed(self.onvalue)[0]:
raise ConfigurationError(
self, "'onvalue' is not allowed for the "
"'%s' device" % self._attached_moveable)
if not self._attached_moveable.isAllowed(self.offvalue)[0]:
raise ConfigurationError(
self, "'offvalue' is not allowed for the "
"'%s' device" % self._attached_moveable)
self.valuetype = oneof(self.offvalue, self.onvalue)
class CPTReadout(HasOffset, JsonBase):
parameters = {
'phasesign':
Param('Phase sign',
type=oneof('unsigned', 'signed'),
settable=False,
default='unsigned'),
'channel':
Param(
'Index of value',
type=intrange(-1, 99),
),
}
def _read_ctrl(self, channel):
data = self._read_controller([self.valuekey, 'start_act'])
self.log.debug('res: %r', data)
self.log.debug('channel %d', channel)
if channel == 0:
self.log.debug('calc speed')
res = 3e9 / data['start_act'] # speed
res -= self.offset # should be Zero
elif channel == -1:
self.log.debug('calc phase in respect to Disk 1 of Disc 1')
self.log.debug('offset %.2f', self.offset)
res = -360.0 * data[self.valuekey][0] / data['start_act']
res -= self.offset
res = self._kreis(res)
else:
self.log.debug('calc phase in respect to Disk 1')
self.log.debug('offset %.2f', self.offset)
res = -360.0 * data[self.valuekey][channel] / data['start_act']
res -= self.offset
res = self._kreis(res)
return res
def _kreis(self, phase, kreis=360.0):
line = 'kreis phase %.2f' % phase
if self.phasesign == 'signed':
while phase > kreis / 2:
phase -= kreis
while phase < -kreis / 2:
phase += kreis
else:
phase = -phase
while phase > kreis:
phase -= kreis
while phase < 0:
phase += kreis
self.log.debug('%s %.2f', line, phase)
return phase
def doRead(self, maxage=0):
return self._read_ctrl(self.channel)
class Shs(PyTangoDevice, Readable):
"""
Basic IO Device object for devices in refsans'
contains common things for all devices.
"""
_buffer_old = None
hardware_access = True
parameters = {
'address': Param('Starting offset (words) of IO area',
# type=intrange(0x3000, 0x47ff),
type=oneof(1026), mandatory=False, settable=False,
userparam=False, default=1026),
'banks': Param('Banks to be read',
type=listof(intrange(0, 0xffff)), settable=False,
userparam=False, default=[0x300, 0x400])
}
def doInit(self, mode):
# switch off watchdog, important before doing any write access
# if mode != SIMULATION:
# self._taco_guard(self._dev.writeSingleRegister, (0, 0x1120, 0))
pass
def _readBuffer(self):
buf = ()
for bank in self.banks:
Notausgang = 1
while True:
self.log.debug('bank: 0x%04X', bank)
for _ in range(2):
session.delay(0.1)
self._dev.WriteOutputWords((self.address, bank))
bu = tuple(self._dev.ReadOutputWords((0, 10)))
if bu[2] == bank:
self.log.debug('Bank ok %d == %d', bu[2], bank)
buf += bu
break
self.log.debug('Data from wrong bank %d != %d', bu[2], bank)
Notausgang += 1
if Notausgang > 6:
self.log.info('NOTAUSGANG<') # raise error ???
break
session.delay(0.5 * Notausgang)
self.log.debug('buffer: %s', buf)
self._buffer_old = buf
return buf
def doRead(self, maxage=0):
return self._readBuffer()
def doStatus(self, maxage=0):
return status.OK, 'DEBUG'
