| # Contributors Listed Below - COPYRIGHT 2016 |
| # [+] International Business Machines Corp. |
| # |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or |
| # implied. See the License for the specific language governing |
| # permissions and limitations under the License. |
| |
| import os |
| import subprocess |
| import dbus |
| import dbus.service |
| from obmc.dbuslib.bindings import DbusProperties |
| |
| |
| ## Abstract class, must subclass |
| class SensorValue(DbusProperties): |
| IFACE_NAME = 'org.openbmc.SensorValue' |
| |
| def __init__(self, bus, name): |
| self.Set(SensorValue.IFACE_NAME, 'units', "") |
| self.Set(SensorValue.IFACE_NAME, 'error', False) |
| |
| @dbus.service.method( |
| IFACE_NAME, in_signature='v', out_signature='') |
| def setValue(self, value): |
| self.Set(SensorValue.IFACE_NAME, 'value', value) |
| |
| @dbus.service.method( |
| IFACE_NAME, in_signature='', out_signature='v') |
| def getValue(self): |
| return self.Get(SensorValue.IFACE_NAME, 'value') |
| |
| |
| class SensorThresholds(DbusProperties): |
| IFACE_NAME = 'org.openbmc.SensorThresholds' |
| |
| def __init__(self, bus, name): |
| self.Set( |
| SensorThresholds.IFACE_NAME, |
| 'thresholds_enabled', |
| False) |
| self.Set( |
| SensorThresholds.IFACE_NAME, |
| 'emergency_enabled', |
| False) |
| self.Set( |
| SensorThresholds.IFACE_NAME, |
| 'warning_upper', |
| 0) |
| self.Set( |
| SensorThresholds.IFACE_NAME, |
| 'warning_lower', |
| 0) |
| self.Set( |
| SensorThresholds.IFACE_NAME, |
| 'critical_upper', |
| 0) |
| self.Set( |
| SensorThresholds.IFACE_NAME, |
| 'critical_lower', |
| 0) |
| self.Set( |
| SensorThresholds.IFACE_NAME, |
| 'critical_lower', |
| 0) |
| self.Set( |
| SensorThresholds.IFACE_NAME, |
| 'threshold_state', |
| "NORMAL") |
| self.Set( |
| SensorThresholds.IFACE_NAME, |
| 'worst_threshold_state', |
| "NORMAL") |
| |
| @dbus.service.method( |
| IFACE_NAME, in_signature='', out_signature='') |
| def resetThresholdState(self): |
| self.Set( |
| SensorThresholds.IFACE_NAME, |
| 'worst_threshold_state', |
| "NORMAL") |
| |
| def check_thresholds(self, value): |
| iface = SensorThresholds.IFACE_NAME |
| if (self.Get(iface, 'thresholds_enabled') is False): |
| return False |
| rtn = False |
| current_state = "NORMAL" |
| if (value >= self.properties[iface]['critical_upper']): |
| current_state = "CRITICAL" |
| rtn = True |
| elif (value <= self.properties[iface]['critical_lower']): |
| current_state = "CRITICAL" |
| rtn = True |
| elif (value >= self.properties[iface]['warning_upper']): |
| current_state = "WARNING" |
| rtn = True |
| elif (value <= self.properties[iface]['warning_lower']): |
| current_state = "WARNING" |
| rtn = True |
| |
| if self.Get(iface, 'threshold_state') != current_state and \ |
| current_state == "CRITICAL" and \ |
| self.Get(iface, 'emergency_enabled') is True: |
| message = type(self).__name__ + \ |
| ' SensorThresholds.check_thresholds(): trigger emergency' + \ |
| ' signal, sensor value: ' + str(value) |
| self.Emergency(message) |
| |
| self.Set(iface, 'threshold_state', current_state) |
| worst = self.properties[iface]['worst_threshold_state'] |
| if (current_state == "CRITICAL" or |
| (current_state == "WARNING" and worst != "CRITICAL")): |
| self.Set(iface, 'worst_threshold_state', current_state) |
| |
| return rtn |
| |
| @dbus.service.signal(IFACE_NAME, signature='s') |
| def Emergency(self, message): |
| pass |
| |
| |
| class VirtualSensor(SensorValue): |
| def __init__(self, bus, name): |
| DbusProperties.__init__(self) |
| SensorValue.__init__(self, bus, name) |
| dbus.service.Object.__init__(self, bus, name) |
| |
| |
| class HwmonSensor(SensorValue, SensorThresholds): |
| IFACE_NAME = 'org.openbmc.HwmonSensor' |
| |
| def __init__(self, bus, name): |
| DbusProperties.__init__(self) |
| SensorValue.__init__(self, bus, name) |
| SensorThresholds.__init__(self, bus, name) |
| self.Set(HwmonSensor.IFACE_NAME, 'scale', 1) |
| self.Set(HwmonSensor.IFACE_NAME, 'offset', 0) |
| self.Set(HwmonSensor.IFACE_NAME, 'filename', '') |
| self.value_dirty = False |
| |
| # need to cache value to know if changed |
| self.value = None |
| dbus.service.Object.__init__(self, bus, name) |
| |
| @dbus.service.method( |
| SensorValue.IFACE_NAME, in_signature='v', out_signature='') |
| def setValue(self, value): |
| self.value_dirty = True |
| SensorValue.setValue(self, value) |
| |
| ## Called by sensor process to update value from polling |
| ## if returns not None, then sensor process will update hwmon value |
| @dbus.service.method( |
| IFACE_NAME, in_signature='v', out_signature='(bv)') |
| def setByPoll(self, value): |
| scale = self.properties[HwmonSensor.IFACE_NAME]['scale'] |
| offset = self.properties[HwmonSensor.IFACE_NAME]['offset'] |
| try: |
| adjust = self.properties[HwmonSensor.IFACE_NAME]['adjust'] |
| if adjust == 0: |
| adjust = 1 |
| except: |
| adjust = 1 |
| |
| if self.value_dirty: |
| ## new value externally set, so just return to hwmon |
| ## process to write value |
| self.value_dirty = False |
| val = int(( |
| self.properties[SensorValue.IFACE_NAME]['value'] |
| - offset) * adjust) |
| return [True, val] |
| else: |
| # Keep the val as integer. adjust may be floating point |
| val = int(value/adjust + offset) |
| if (val != self.value): |
| SensorValue.setValue(self, val) |
| # scale the value to check threshold |
| self.check_thresholds(val * (10 ** scale)) |
| self.value = val |
| |
| return [False, 0] |
| |
| |
| CONTROL_IFACE = 'org.openbmc.Control' |
| |
| |
| class PowerCap(VirtualSensor): |
| def __init__(self, bus, name): |
| VirtualSensor.__init__(self, bus, name) |
| SensorValue.setValue(self, 0) |
| self.sysfs_attr = "/sys/class/hwmon/hwmon3/user_powercap" |
| |
| ##override setValue method |
| @dbus.service.method( |
| SensorValue.IFACE_NAME, in_signature='v', out_signature='') |
| def setValue(self, value): |
| try: |
| cmd_str = "echo "+str(value)+" > "+self.sysfs_attr |
| ret = subprocess.check_output(cmd_str, shell=True) |
| except subprocess.CalledProcessError as powerexc: |
| print "Set PowerCap Error", powerexc.returncode, |
| powerexc.output |
| return |
| print "Set PowerCap: ", value |
| SensorValue.setValue(self, value) |
| |
| |
| class BootProgressSensor(VirtualSensor): |
| def __init__(self, bus, name): |
| VirtualSensor.__init__(self, bus, name) |
| self.setValue("Off") |
| bus.add_signal_receiver( |
| self.SystemStateHandler, signal_name="GotoSystemState") |
| |
| def SystemStateHandler(self, state): |
| if (state == "HOST_POWERED_OFF"): |
| self.setValue("Off") |
| |
| ##override setValue method |
| @dbus.service.method( |
| SensorValue.IFACE_NAME, |
| in_signature='v', out_signature='') |
| def setValue(self, value): |
| SensorValue.setValue(self, value) |
| if (value == "FW Progress, Starting OS"): |
| self.GotoSystemState("HOST_BOOTED") |
| self.BootProgress(value) |
| |
| @dbus.service.signal(CONTROL_IFACE, signature='s') |
| def GotoSystemState(self, state): |
| pass |
| |
| @dbus.service.signal(CONTROL_IFACE, signature='s') |
| def BootProgress(self, state): |
| pass |
| |
| |
| class OccStatusSensor(VirtualSensor): |
| def __init__(self, bus, name, sysfs=None): |
| ## default path. can be override |
| if sysfs is None: |
| self.sysfs_attr = "/sys/class/i2c-adapter/i2c-3/3-0050/online" |
| else: |
| self.sysfs_attr = sysfs |
| VirtualSensor.__init__(self, bus, name) |
| self.setValue("Disabled") |
| bus.add_signal_receiver( |
| self.SystemStateHandler, signal_name="GotoSystemState") |
| |
| def SystemStateHandler(self, state): |
| if (state == "HOST_POWERED_OFF"): |
| self.setValue("Disabled") |
| |
| ##override setValue method |
| @dbus.service.method( |
| SensorValue.IFACE_NAME, in_signature='v', out_signature='') |
| def setValue(self, value): |
| if (value == "Enabled"): |
| print "Installing OCC device" |
| os.system("echo 1 > " + self.sysfs_attr) |
| else: |
| print "Deleting OCC device" |
| os.system("echo 0 > " + self.sysfs_attr) |
| SensorValue.setValue(self, value) |
| |
| @dbus.service.signal(CONTROL_IFACE, signature='s') |
| def GotoSystemState(self, state): |
| pass |
| |
| |
| class BootCountSensor(VirtualSensor): |
| def __init__(self, bus, name): |
| VirtualSensor.__init__(self, bus, name) |
| self.setValue(2) |
| |
| |
| class OperatingSystemStatusSensor(VirtualSensor): |
| def __init__(self, bus, name): |
| VirtualSensor.__init__(self, bus, name) |
| self.setValue("Off") |
| bus.add_signal_receiver( |
| self.SystemStateHandler, signal_name="GotoSystemState") |
| |
| def SystemStateHandler(self, state): |
| if (state == "HOST_POWERED_OFF"): |
| self.setValue("Off") |
| |
| class PowerSupplyRedundancySensor(VirtualSensor): |
| def __init__(self, bus, name): |
| VirtualSensor.__init__(self, bus, name) |
| super(PsRedundancySensor,self).setValue("Disabled") |
| |
| ## override setValue method |
| @dbus.service.method( |
| SensorValue.IFACE_NAME, in_signature='v', out_signature='') |
| def setValue(self, value): |
| print "Setting Power Supply Redundancy is not allowed" |