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instruments/battery_monitor: Add frontend for battery monitor

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Adds frontend for the batter_monitor energy measurement backend.
This commit is contained in:
Marc Bonnici 2021-02-01 17:11:52 +00:00
parent 4b54e17020
commit b5c5f3155a
1 changed files with 44 additions and 1 deletions
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45
wa/instruments/energy_measurement.py
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@ -28,6 +28,7 @@ from devlib.instrument.arm_energy_probe import ArmEnergyProbeInstrument
from devlib.instrument.daq import DaqInstrument
from devlib.instrument.acmecape import AcmeCapeInstrument
from devlib.instrument.monsoon import MonsoonInstrument
from devlib.instrument.battery_monitor import BatteryMonitorInstrument
from devlib.platform.arm import JunoEnergyInstrument
from devlib.utils.misc import which
@ -383,6 +384,48 @@ class JunoEnergyBackend(EnergyInstrumentBackend):
instrument = JunoEnergyInstrument
class BatteryMonitorBackend(EnergyInstrumentBackend):
name = 'battery_monitor'
description = """
Record power readings as reported from a devices built in sensors. The available
sysfs node exposing the current is attempted to be auto detected however if not found,
please specify manually using the ``current_node`` parameter
Warning: These readings are not reliable and aimed at allowing A/B comparision rather
than to provide accurate measurement.
Note: A device must have charging disabled when using this instrument.
"""
parameters = [
Parameter('period', default=2, kind=int,
description="""
How often in seconds the battery stats are polled.
The refresh rate of these stats is device dependant but typically
not that frequent.
"""),
Parameter('current_node', default=None,
description="""
Instrument will attempt to detect which node to read to
access current, if receiving incorrect readings or if not found,
please specify manually.
"""),
Parameter('current_scale', default=1e6, kind=int,
description="""
The default value for current is reported in uA, however some
devices may use other units, adjust accordingly.
"""),
Parameter('voltage_scale', default=1e3, kind=int,
description="""
The default value for voltage is reported in mV, however some
devices may use other units, adjust accordingly.
""")
]
instrument = BatteryMonitorInstrument
class EnergyMeasurement(Instrument):
name = 'energy_measurement'
@ -397,7 +440,7 @@ class EnergyMeasurement(Instrument):
parameters = [
Parameter('instrument', kind=str, mandatory=True,
allowed_values=['daq', 'energy_probe', 'acme_cape', 'monsoon', 'juno_readenergy', 'arm_energy_probe'],
allowed_values=['daq', 'energy_probe', 'acme_cape', 'monsoon', 'juno_readenergy', 'arm_energy_probe', 'battery_monitor'],
description="""
Specify the energy instruments to be enabled.
"""),