77 lines
1.6 KiB
Go
77 lines
1.6 KiB
Go
package drivers
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import (
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"fmt"
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"os"
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"path/filepath"
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"strconv"
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"strings"
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)
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type HwmonDriver struct {
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hwmonDir string
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hwmonDriver string
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}
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func NewHwmonDriver(expectedDrivers []string) *HwmonDriver {
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// Locate hwmon path
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dirs, err := filepath.Glob("/sys/class/hwmon/hwmon*")
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if err != nil {
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return nil
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}
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for _, dir := range dirs {
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nameRaw, err := os.ReadFile(filepath.Join(dir, "name"))
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name := strings.TrimSpace(string(nameRaw))
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if err == nil {
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for _, driver := range expectedDrivers {
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if driver == name {
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return &HwmonDriver{
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hwmonDir: dir,
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hwmonDriver: driver,
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}
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}
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}
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}
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}
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return nil
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}
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func (r *HwmonDriver) ReadTemperatureSensors() ([]TemperatureSensor, error) {
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inputs, err := filepath.Glob(filepath.Join(r.hwmonDir, "temp*_input"))
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if err != nil || len(inputs) == 0 {
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return nil, fmt.Errorf("no temperature inputs found in %s", r.hwmonDir)
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}
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temps := make([]TemperatureSensor, 0, len(inputs))
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for _, inputPath := range inputs {
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valBytes, err := os.ReadFile(inputPath)
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if err != nil {
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continue
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}
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milliC, err := strconv.ParseFloat(strings.TrimSpace(string(valBytes)), 64)
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if err != nil {
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continue
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}
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labelPath := strings.TrimSuffix(inputPath, "_input") + "_label"
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label := ""
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if lBytes, err := os.ReadFile(labelPath); err == nil {
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label = strings.TrimSpace(string(lBytes))
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} else {
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label = filepath.Base(strings.TrimSuffix(inputPath, "_input"))
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}
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temps = append(temps, TemperatureSensor{
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path: inputPath,
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Name: label,
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TempC: milliC / 1000.0,
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})
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}
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return temps, nil
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}
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