joshuar-go-hass-agent/internal/linux/system/hwmon.go

147 lines
3.7 KiB
Go

// Copyright (c) 2024 Joshua Rich <joshua.rich@gmail.com>
//
// This software is released under the MIT License.
// https://opensource.org/licenses/MIT
//revive:disable:unused-receiver
package system
import (
"context"
"fmt"
"time"
"github.com/joshuar/go-hass-agent/internal/hass/sensor"
"github.com/joshuar/go-hass-agent/internal/hass/sensor/types"
"github.com/joshuar/go-hass-agent/internal/linux"
"github.com/joshuar/go-hass-agent/internal/preferences"
"github.com/joshuar/go-hass-agent/pkg/linux/hwmon"
)
const (
hwMonInterval = time.Minute
hwMonJitter = 5 * time.Second
hwmonWorkerID = "hwmon"
)
func hwmonSensorAttributes(details *hwmon.Sensor) map[string]any {
attributes := make(map[string]any)
attributes["sensor_type"] = details.MonitorType.String()
attributes["sysfs_path"] = details.Path
attributes["data_source"] = linux.DataSrcSysfs
if details.Units() != "" {
attributes["native_unit_of_measurement"] = details.Units()
}
return attributes
}
func newHWSensor(details *hwmon.Sensor) sensor.Entity {
newSensor := sensor.Entity{
Name: details.Name(),
Category: types.CategoryDiagnostic,
Units: details.Units(),
State: &sensor.State{
ID: details.ID(),
Value: details.Value(),
Attributes: hwmonSensorAttributes(details),
},
}
switch details.MonitorType {
case hwmon.Alarm, hwmon.Intrusion:
if v, ok := details.Value().(bool); ok && v {
newSensor.Icon = "mdi:alarm-light"
}
newSensor.Icon = "mdi:alarm-light-off"
newSensor.EntityType = types.BinarySensor
if details.MonitorType == hwmon.Alarm {
newSensor.DeviceClass = types.BinarySensorDeviceClassProblem
} else {
newSensor.DeviceClass = types.BinarySensorDeviceClassTamper
}
default:
icon, deviceClass := parseSensorType(details.MonitorType.String())
newSensor.Icon = icon
newSensor.DeviceClass = deviceClass
newSensor.StateClass = types.StateClassMeasurement
}
return newSensor
}
type hwMonWorker struct{}
func (w *hwMonWorker) UpdateDelta(_ time.Duration) {}
func (w *hwMonWorker) Sensors(_ context.Context) ([]sensor.Entity, error) {
hwmonSensors, err := hwmon.GetAllSensors()
if err != nil {
return nil, fmt.Errorf("could not retrieve hardware sensors: %w", err)
}
sensors := make([]sensor.Entity, 0, len(hwmonSensors))
for _, s := range hwmonSensors {
sensors = append(sensors, newHWSensor(s))
}
return sensors, nil
}
func (w *hwMonWorker) PreferencesID() string {
return preferencesID
}
func (w *hwMonWorker) DefaultPreferences() WorkerPrefs {
return WorkerPrefs{}
}
func NewHWMonWorker(ctx context.Context) (*linux.PollingSensorWorker, error) {
worker := linux.NewPollingSensorWorker(hwmonWorkerID, hwMonInterval, hwMonJitter)
hwMonWorker := &hwMonWorker{}
prefs, err := preferences.LoadWorkerPreferences(ctx, hwMonWorker)
if err != nil {
return worker, fmt.Errorf("could not load preferences: %w", err)
}
// If disabled, don't use.
if prefs.DisableHWMon {
return worker, nil
}
worker.PollingSensorType = hwMonWorker
return worker, nil
}
func parseSensorType(t string) (icon string, deviceclass types.DeviceClass) {
switch t {
case "Temp":
return "mdi:thermometer", types.SensorDeviceClassTemperature
case "Fan":
return "mdi:turbine", 0
case "Power":
return "mdi:flash", types.SensorDeviceClassPower
case "Voltage":
return "mdi:lightning-bolt", types.SensorDeviceClassVoltage
case "Energy":
return "mdi:lightning-bolt", types.SensorDeviceClassEnergyStorage
case "Current":
return "mdi:current-ac", types.SensorDeviceClassCurrent
case "Frequency", "PWM":
return "mdi:sawtooth-wave", types.SensorDeviceClassFrequency
case "Humidity":
return "mdi:water-percent", types.SensorDeviceClassHumidity
default:
return "mdi:chip", 0
}
}