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This commit is contained in:
tumillanino
303
cmd/dms/commands_brightness.go
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303
cmd/dms/commands_brightness.go
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package main
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import (
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"fmt"
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"strings"
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"time"
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"github.com/AvengeMedia/danklinux/internal/log"
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"github.com/AvengeMedia/danklinux/internal/server/brightness"
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"github.com/spf13/cobra"
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)
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var brightnessCmd = &cobra.Command{
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Use: "brightness",
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Short: "Control device brightness",
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Long: "Control brightness for backlight and LED devices (use --ddc to include DDC/I2C monitors)",
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}
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var brightnessListCmd = &cobra.Command{
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Use: "list",
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Short: "List all brightness devices",
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Long: "List all available brightness devices with their current values",
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Run: runBrightnessList,
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}
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var brightnessSetCmd = &cobra.Command{
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Use: "set <device_id> <percent>",
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Short: "Set brightness for a device",
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Long: "Set brightness percentage (0-100) for a specific device",
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Args: cobra.ExactArgs(2),
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Run: runBrightnessSet,
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}
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var brightnessGetCmd = &cobra.Command{
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Use: "get <device_id>",
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Short: "Get brightness for a device",
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Long: "Get current brightness percentage for a specific device",
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Args: cobra.ExactArgs(1),
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Run: runBrightnessGet,
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}
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func init() {
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brightnessListCmd.Flags().Bool("ddc", false, "Include DDC/I2C monitors (slower)")
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brightnessSetCmd.Flags().Bool("ddc", false, "Include DDC/I2C monitors (slower)")
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brightnessSetCmd.Flags().Bool("exponential", false, "Use exponential brightness scaling")
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brightnessSetCmd.Flags().Float64("exponent", 1.2, "Exponent for exponential scaling (default 1.2)")
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brightnessGetCmd.Flags().Bool("ddc", false, "Include DDC/I2C monitors (slower)")
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brightnessCmd.SetHelpTemplate(`{{.Long}}
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Usage:
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{{.UseLine}}{{if .HasAvailableSubCommands}}
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Available Commands:{{range .Commands}}{{if (or .IsAvailableCommand (eq .Name "help"))}}
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{{rpad .Name .NamePadding }} {{.Short}}{{end}}{{end}}{{end}}{{if .HasAvailableLocalFlags}}
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Flags:
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{{.LocalFlags.FlagUsages | trimTrailingWhitespaces}}{{end}}{{if .HasAvailableInheritedFlags}}
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Global Flags:
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{{.InheritedFlags.FlagUsages | trimTrailingWhitespaces}}{{end}}{{if .HasHelpSubCommands}}
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Additional help topics:{{range .Commands}}{{if .IsAdditionalHelpTopicCommand}}
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{{rpad .Name .NamePadding}} {{.Short}}{{end}}{{end}}{{end}}{{if .HasAvailableSubCommands}}
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Use "{{.CommandPath}} [command] --help" for more information about a command.{{end}}
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`)
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brightnessListCmd.SetHelpTemplate(`{{.Long}}
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Usage:
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{{.UseLine}}{{if .HasAvailableLocalFlags}}
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Flags:
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{{.LocalFlags.FlagUsages | trimTrailingWhitespaces}}{{end}}{{if .HasAvailableInheritedFlags}}
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Global Flags:
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{{.InheritedFlags.FlagUsages | trimTrailingWhitespaces}}{{end}}
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`)
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brightnessSetCmd.SetHelpTemplate(`{{.Long}}
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Usage:
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{{.UseLine}}{{if .HasAvailableLocalFlags}}
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Flags:
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{{.LocalFlags.FlagUsages | trimTrailingWhitespaces}}{{end}}{{if .HasAvailableInheritedFlags}}
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Global Flags:
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{{.InheritedFlags.FlagUsages | trimTrailingWhitespaces}}{{end}}
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`)
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brightnessGetCmd.SetHelpTemplate(`{{.Long}}
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Usage:
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{{.UseLine}}{{if .HasAvailableLocalFlags}}
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Flags:
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{{.LocalFlags.FlagUsages | trimTrailingWhitespaces}}{{end}}{{if .HasAvailableInheritedFlags}}
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Global Flags:
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{{.InheritedFlags.FlagUsages | trimTrailingWhitespaces}}{{end}}
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`)
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brightnessCmd.AddCommand(brightnessListCmd, brightnessSetCmd, brightnessGetCmd)
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}
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func runBrightnessList(cmd *cobra.Command, args []string) {
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includeDDC, _ := cmd.Flags().GetBool("ddc")
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allDevices := []brightness.Device{}
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sysfs, err := brightness.NewSysfsBackend()
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if err != nil {
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log.Debugf("Failed to initialize sysfs backend: %v", err)
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} else {
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devices, err := sysfs.GetDevices()
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if err != nil {
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log.Debugf("Failed to get sysfs devices: %v", err)
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} else {
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allDevices = append(allDevices, devices...)
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}
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}
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if includeDDC {
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ddc, err := brightness.NewDDCBackend()
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if err != nil {
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fmt.Printf("Warning: Failed to initialize DDC backend: %v\n", err)
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} else {
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time.Sleep(100 * time.Millisecond)
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devices, err := ddc.GetDevices()
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if err != nil {
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fmt.Printf("Warning: Failed to get DDC devices: %v\n", err)
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} else {
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allDevices = append(allDevices, devices...)
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}
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ddc.Close()
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}
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}
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if len(allDevices) == 0 {
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fmt.Println("No brightness devices found")
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return
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}
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maxIDLen := len("Device")
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maxNameLen := len("Name")
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for _, dev := range allDevices {
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if len(dev.ID) > maxIDLen {
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maxIDLen = len(dev.ID)
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}
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if len(dev.Name) > maxNameLen {
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maxNameLen = len(dev.Name)
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}
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}
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idPad := maxIDLen + 2
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namePad := maxNameLen + 2
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fmt.Printf("%-*s %-12s %-*s %s\n", idPad, "Device", "Class", namePad, "Name", "Brightness")
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sepLen := idPad + 2 + 12 + 2 + namePad + 2 + 15
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for i := 0; i < sepLen; i++ {
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fmt.Print("─")
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}
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fmt.Println()
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for _, device := range allDevices {
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fmt.Printf("%-*s %-12s %-*s %3d%%\n",
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idPad,
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device.ID,
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device.Class,
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namePad,
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device.Name,
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device.CurrentPercent,
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)
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}
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}
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func runBrightnessSet(cmd *cobra.Command, args []string) {
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deviceID := args[0]
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var percent int
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if _, err := fmt.Sscanf(args[1], "%d", &percent); err != nil {
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log.Fatalf("Invalid percent value: %s", args[1])
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}
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if percent < 0 || percent > 100 {
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log.Fatalf("Percent must be between 0 and 100")
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}
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includeDDC, _ := cmd.Flags().GetBool("ddc")
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exponential, _ := cmd.Flags().GetBool("exponential")
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exponent, _ := cmd.Flags().GetFloat64("exponent")
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// For backlight/leds devices, try logind backend first (requires D-Bus connection)
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parts := strings.SplitN(deviceID, ":", 2)
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if len(parts) == 2 && (parts[0] == "backlight" || parts[0] == "leds") {
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subsystem := parts[0]
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name := parts[1]
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// Initialize backends needed for logind approach
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sysfs, err := brightness.NewSysfsBackend()
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if err != nil {
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log.Debugf("NewSysfsBackend failed: %v", err)
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} else {
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logind, err := brightness.NewLogindBackend()
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if err != nil {
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log.Debugf("NewLogindBackend failed: %v", err)
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} else {
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defer logind.Close()
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// Get device info to convert percent to value
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dev, err := sysfs.GetDevice(deviceID)
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if err == nil {
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// Calculate hardware value using the same logic as Manager.setViaSysfsWithLogind
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value := sysfs.PercentToValueWithExponent(percent, dev, exponential, exponent)
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// Call logind with hardware value
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if err := logind.SetBrightness(subsystem, name, uint32(value)); err == nil {
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log.Debugf("set %s to %d%% (%d) via logind", deviceID, percent, value)
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fmt.Printf("Set %s to %d%%\n", deviceID, percent)
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return
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} else {
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log.Debugf("logind.SetBrightness failed: %v", err)
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}
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} else {
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log.Debugf("sysfs.GetDeviceByID failed: %v", err)
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}
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}
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}
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}
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// Fallback to direct sysfs (requires write permissions)
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sysfs, err := brightness.NewSysfsBackend()
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if err == nil {
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if err := sysfs.SetBrightnessWithExponent(deviceID, percent, exponential, exponent); err == nil {
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fmt.Printf("Set %s to %d%%\n", deviceID, percent)
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return
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}
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log.Debugf("sysfs.SetBrightness failed: %v", err)
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} else {
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log.Debugf("NewSysfsBackend failed: %v", err)
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}
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// Try DDC if requested
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if includeDDC {
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ddc, err := brightness.NewDDCBackend()
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if err == nil {
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defer ddc.Close()
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time.Sleep(100 * time.Millisecond)
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if err := ddc.SetBrightnessWithExponent(deviceID, percent, exponential, exponent, nil); err == nil {
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fmt.Printf("Set %s to %d%%\n", deviceID, percent)
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return
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}
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log.Debugf("ddc.SetBrightness failed: %v", err)
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} else {
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log.Debugf("NewDDCBackend failed: %v", err)
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}
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}
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log.Fatalf("Failed to set brightness for device: %s", deviceID)
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}
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func runBrightnessGet(cmd *cobra.Command, args []string) {
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deviceID := args[0]
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includeDDC, _ := cmd.Flags().GetBool("ddc")
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allDevices := []brightness.Device{}
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sysfs, err := brightness.NewSysfsBackend()
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if err == nil {
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devices, err := sysfs.GetDevices()
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if err == nil {
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allDevices = append(allDevices, devices...)
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}
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}
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if includeDDC {
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ddc, err := brightness.NewDDCBackend()
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if err == nil {
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defer ddc.Close()
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time.Sleep(100 * time.Millisecond)
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devices, err := ddc.GetDevices()
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if err == nil {
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allDevices = append(allDevices, devices...)
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}
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}
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}
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for _, device := range allDevices {
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if device.ID == deviceID {
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fmt.Printf("%s: %d%% (%d/%d)\n",
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device.ID,
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device.CurrentPercent,
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device.Current,
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device.Max,
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)
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return
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}
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}
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log.Fatalf("Device not found: %s", deviceID)
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}
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