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Fix: USB Gadgets update

This commit is contained in:
Alex P 2025-08-25 09:19:03 +00:00
parent 44a35aa5c2
commit bc53523fbb
9 changed files with 296 additions and 26 deletions
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8
internal/audio/supervisor.go
View File

@ -95,6 +95,14 @@ func (s *AudioServerSupervisor) Start() error {
s.logger.Info().Msg("starting audio server supervisor")
// Recreate channels in case they were closed by a previous Stop() call
s.mutex.Lock()
s.processDone = make(chan struct{})
s.stopChan = make(chan struct{})
// Recreate context as well since it might have been cancelled
s.ctx, s.cancel = context.WithCancel(context.Background())
s.mutex.Unlock()
// Start the supervision loop
go s.supervisionLoop()

31
internal/usbgadget/changeset_resolver.go
View File

@ -1,7 +1,9 @@
package usbgadget
import (
"context"
"fmt"
"time"
"github.com/rs/zerolog"
"github.com/sourcegraph/tf-dag/dag"
@ -114,7 +116,20 @@ func (c *ChangeSetResolver) resolveChanges(initial bool) error {
}
func (c *ChangeSetResolver) applyChanges() error {
return c.applyChangesWithTimeout(30 * time.Second)
}
func (c *ChangeSetResolver) applyChangesWithTimeout(timeout time.Duration) error {
ctx, cancel := context.WithTimeout(context.Background(), timeout)
defer cancel()
for _, change := range c.resolvedChanges {
select {
case <-ctx.Done():
return fmt.Errorf("USB gadget reconfiguration timed out after %v: %w", timeout, ctx.Err())
default:
}
change.ResetActionResolution()
action := change.Action()
actionStr := FileChangeResolvedActionString[action]
@ -126,7 +141,7 @@ func (c *ChangeSetResolver) applyChanges() error {
l.Str("action", actionStr).Str("change", change.String()).Msg("applying change")
err := c.changeset.applyChange(change)
err := c.applyChangeWithTimeout(ctx, change)
if err != nil {
if change.IgnoreErrors {
c.l.Warn().Str("change", change.String()).Err(err).Msg("ignoring error")
@ -139,6 +154,20 @@ func (c *ChangeSetResolver) applyChanges() error {
return nil
}
func (c *ChangeSetResolver) applyChangeWithTimeout(ctx context.Context, change *FileChange) error {
done := make(chan error, 1)
go func() {
done <- c.changeset.applyChange(change)
}()
select {
case err := <-done:
return err
case <-ctx.Done():
return fmt.Errorf("change application timed out for %s: %w", change.String(), ctx.Err())
}
}
func (c *ChangeSetResolver) GetChanges() ([]*FileChange, error) {
localChanges := c.changeset.Changes
changesMap := make(map[string]*FileChange)

6
internal/usbgadget/config.go
View File

@ -213,11 +213,17 @@ func (u *UsbGadget) UpdateGadgetConfig() error {
u.loadGadgetConfig()
// Close HID files before reconfiguration to prevent "file already closed" errors
u.CloseHidFiles()
err := u.configureUsbGadget(true)
if err != nil {
return u.logError("unable to update gadget config", err)
}
// Reopen HID files after reconfiguration
u.PreOpenHidFiles()
return nil
}

39
internal/usbgadget/udc.go
View File

@ -1,10 +1,12 @@
package usbgadget
import (
"context"
"fmt"
"os"
"path"
"strings"
"time"
)
func getUdcs() []string {
@ -26,17 +28,44 @@ func getUdcs() []string {
}
func rebindUsb(udc string, ignoreUnbindError bool) error {
err := os.WriteFile(path.Join(dwc3Path, "unbind"), []byte(udc), 0644)
if err != nil && !ignoreUnbindError {
return err
return rebindUsbWithTimeout(udc, ignoreUnbindError, 10*time.Second)
}
err = os.WriteFile(path.Join(dwc3Path, "bind"), []byte(udc), 0644)
func rebindUsbWithTimeout(udc string, ignoreUnbindError bool, timeout time.Duration) error {
ctx, cancel := context.WithTimeout(context.Background(), timeout)
defer cancel()
// Unbind with timeout
err := writeFileWithTimeout(ctx, path.Join(dwc3Path, "unbind"), []byte(udc), 0644)
if err != nil && !ignoreUnbindError {
return fmt.Errorf("failed to unbind UDC: %w", err)
}
// Small delay to allow unbind to complete
time.Sleep(100 * time.Millisecond)
// Bind with timeout
err = writeFileWithTimeout(ctx, path.Join(dwc3Path, "bind"), []byte(udc), 0644)
if err != nil {
return err
return fmt.Errorf("failed to bind UDC: %w", err)
}
return nil
}
func writeFileWithTimeout(ctx context.Context, filename string, data []byte, perm os.FileMode) error {
done := make(chan error, 1)
go func() {
done <- os.WriteFile(filename, data, perm)
}()
select {
case err := <-done:
return err
case <-ctx.Done():
return fmt.Errorf("write operation timed out: %w", ctx.Err())
}
}
func (u *UsbGadget) rebindUsb(ignoreUnbindError bool) error {
u.log.Info().Str("udc", u.udc).Msg("rebinding USB gadget to UDC")
return rebindUsb(u.udc, ignoreUnbindError)

33
internal/usbgadget/usbgadget.go
View File

@ -95,8 +95,41 @@ func NewUsbGadget(name string, enabledDevices *Devices, config *Config, logger *
return newUsbGadget(name, defaultGadgetConfig, enabledDevices, config, logger)
}
// CloseHidFiles closes all open HID files
func (u *UsbGadget) CloseHidFiles() {
u.log.Debug().Msg("closing HID files")
// Close keyboard HID file
if u.keyboardHidFile != nil {
if err := u.keyboardHidFile.Close(); err != nil {
u.log.Debug().Err(err).Msg("failed to close keyboard HID file")
}
u.keyboardHidFile = nil
}
// Close absolute mouse HID file
if u.absMouseHidFile != nil {
if err := u.absMouseHidFile.Close(); err != nil {
u.log.Debug().Err(err).Msg("failed to close absolute mouse HID file")
}
u.absMouseHidFile = nil
}
// Close relative mouse HID file
if u.relMouseHidFile != nil {
if err := u.relMouseHidFile.Close(); err != nil {
u.log.Debug().Err(err).Msg("failed to close relative mouse HID file")
}
u.relMouseHidFile = nil
}
}
// PreOpenHidFiles opens all HID files to reduce input latency
func (u *UsbGadget) PreOpenHidFiles() {
// Add a small delay to allow USB gadget reconfiguration to complete
// This prevents "no such device or address" errors when trying to open HID files
time.Sleep(100 * time.Millisecond)
if u.enabledDevices.Keyboard {
if err := u.openKeyboardHidFile(); err != nil {
u.log.Debug().Err(err).Msg("failed to pre-open keyboard HID file")

81
jsonrpc.go
View File

@ -908,9 +908,58 @@ func updateUsbRelatedConfig() error {
}
func rpcSetUsbDevices(usbDevices usbgadget.Devices) error {
// Check if audio state is changing
previousAudioEnabled := config.UsbDevices != nil && config.UsbDevices.Audio
newAudioEnabled := usbDevices.Audio
// Handle audio process management if state is changing
if previousAudioEnabled != newAudioEnabled {
if !newAudioEnabled && audioSupervisor != nil && audioSupervisor.IsRunning() {
// Stop audio processes when audio is disabled
logger.Info().Msg("stopping audio processes due to audio device being disabled")
if err := audioSupervisor.Stop(); err != nil {
logger.Error().Err(err).Msg("failed to stop audio supervisor")
}
// Wait for audio processes to fully stop before proceeding
for i := 0; i < 50; i++ { // Wait up to 5 seconds
if !audioSupervisor.IsRunning() {
break
}
time.Sleep(100 * time.Millisecond)
}
logger.Info().Msg("audio processes stopped, proceeding with USB gadget reconfiguration")
} else if newAudioEnabled && audioSupervisor != nil && !audioSupervisor.IsRunning() {
// Start audio processes when audio is enabled (after USB reconfiguration)
logger.Info().Msg("audio will be started after USB gadget reconfiguration")
}
}
config.UsbDevices = &usbDevices
gadget.SetGadgetDevices(config.UsbDevices)
return updateUsbRelatedConfig()
// Apply USB gadget configuration changes
err := updateUsbRelatedConfig()
if err != nil {
return err
}
// Start audio processes after successful USB reconfiguration if needed
if previousAudioEnabled != newAudioEnabled && newAudioEnabled && audioSupervisor != nil {
// Ensure supervisor is fully stopped before starting
for i := 0; i < 50; i++ { // Wait up to 5 seconds
if !audioSupervisor.IsRunning() {
break
}
time.Sleep(100 * time.Millisecond)
}
logger.Info().Msg("starting audio processes after USB gadget reconfiguration")
if err := audioSupervisor.Start(); err != nil {
logger.Error().Err(err).Msg("failed to start audio supervisor")
// Don't return error here as USB reconfiguration was successful
}
}
return nil
}
func rpcSetUsbDeviceState(device string, enabled bool) error {
@ -923,6 +972,36 @@ func rpcSetUsbDeviceState(device string, enabled bool) error {
config.UsbDevices.Keyboard = enabled
case "massStorage":
config.UsbDevices.MassStorage = enabled
case "audio":
// Handle audio process management
if !enabled && audioSupervisor != nil && audioSupervisor.IsRunning() {
// Stop audio processes when audio is disabled
logger.Info().Msg("stopping audio processes due to audio device being disabled")
if err := audioSupervisor.Stop(); err != nil {
logger.Error().Err(err).Msg("failed to stop audio supervisor")
}
// Wait for audio processes to fully stop
for i := 0; i < 50; i++ { // Wait up to 5 seconds
if !audioSupervisor.IsRunning() {
break
}
time.Sleep(100 * time.Millisecond)
}
} else if enabled && audioSupervisor != nil {
// Ensure supervisor is fully stopped before starting
for i := 0; i < 50; i++ { // Wait up to 5 seconds
if !audioSupervisor.IsRunning() {
break
}
time.Sleep(100 * time.Millisecond)
}
// Start audio processes when audio is enabled
logger.Info().Msg("starting audio processes due to audio device being enabled")
if err := audioSupervisor.Start(); err != nil {
logger.Error().Err(err).Msg("failed to start audio supervisor")
}
}
config.UsbDevices.Audio = enabled
default:
return fmt.Errorf("invalid device: %s", device)
}

18
ui/src/components/ActionBar.tsx
View File

@ -21,6 +21,7 @@ import ExtensionPopover from "@/components/popovers/ExtensionPopover";
import AudioControlPopover from "@/components/popovers/AudioControlPopover";
import { useDeviceUiNavigation } from "@/hooks/useAppNavigation";
import { useAudioEvents } from "@/hooks/useAudioEvents";
import { useUsbDeviceConfig } from "@/hooks/useUsbDeviceConfig";
// Type for microphone error
@ -88,6 +89,10 @@ export default function Actionbar({
// Use WebSocket data exclusively - no polling fallback
const isMuted = audioMuted ?? false; // Default to false if WebSocket data not available yet
// Get USB device configuration to check if audio is enabled
const { usbDeviceConfig } = useUsbDeviceConfig();
const isAudioEnabledInUsb = usbDeviceConfig?.audio ?? true; // Default to true while loading
return (
<Container className="border-b border-b-slate-800/20 bg-white dark:border-b-slate-300/20 dark:bg-slate-900">
<div
@ -316,25 +321,32 @@ export default function Actionbar({
/>
</div>
<Popover>
<PopoverButton as={Fragment}>
<PopoverButton as={Fragment} disabled={!isAudioEnabledInUsb}>
<div title={!isAudioEnabledInUsb ? "Audio needs to be enabled in USB device settings" : undefined}>
<Button
size="XS"
theme="light"
text="Audio"
disabled={!isAudioEnabledInUsb}
LeadingIcon={({ className }) => (
<div className="flex items-center">
{isMuted ? (
{!isAudioEnabledInUsb ? (
<MdVolumeOff className={cx(className, "text-gray-400")} />
) : isMuted ? (
<MdVolumeOff className={cx(className, "text-red-500")} />
) : (
<MdVolumeUp className={cx(className, "text-green-500")} />
)}
<MdGraphicEq className={cx(className, "ml-1 text-blue-500")} />
<MdGraphicEq className={cx(className, "ml-1", !isAudioEnabledInUsb ? "text-gray-400" : "text-blue-500")} />
</div>
)}
onClick={() => {
if (isAudioEnabledInUsb) {
setDisableFocusTrap(true);
}
}}
/>
</div>
</PopoverButton>
<PopoverPanel
anchor="bottom end"

28
ui/src/components/UsbDeviceSetting.tsx
View File

@ -22,6 +22,7 @@ export interface UsbDeviceConfig {
absolute_mouse: boolean;
relative_mouse: boolean;
mass_storage: boolean;
audio: boolean;
}
const defaultUsbDeviceConfig: UsbDeviceConfig = {
@ -29,17 +30,30 @@ const defaultUsbDeviceConfig: UsbDeviceConfig = {
absolute_mouse: true,
relative_mouse: true,
mass_storage: true,
audio: true,
};
const usbPresets = [
{
label: "Keyboard, Mouse and Mass Storage",
label: "Keyboard, Mouse, Mass Storage and Audio",
value: "default",
config: {
keyboard: true,
absolute_mouse: true,
relative_mouse: true,
mass_storage: true,
audio: true,
},
},
{
label: "Keyboard, Mouse and Mass Storage",
value: "no_audio",
config: {
keyboard: true,
absolute_mouse: true,
relative_mouse: true,
mass_storage: true,
audio: false,
},
},
{
@ -50,6 +64,7 @@ const usbPresets = [
absolute_mouse: false,
relative_mouse: false,
mass_storage: false,
audio: false,
},
},
{
@ -217,6 +232,17 @@ export function UsbDeviceSetting() {
/>
</SettingsItem>
</div>
<div className="space-y-4">
<SettingsItem
title="Enable Audio Input/Output"
description="Enable USB audio input and output devices"
>
<Checkbox
checked={usbDeviceConfig.audio}
onChange={onUsbConfigItemChange("audio")}
/>
</SettingsItem>
</div>
</div>
<div className="mt-6 flex gap-x-2">
<Button

48
ui/src/hooks/useUsbDeviceConfig.ts Normal file
View File

@ -0,0 +1,48 @@
import { useCallback, useEffect, useState } from "react";
import { JsonRpcResponse, useJsonRpc } from "./useJsonRpc";
export interface UsbDeviceConfig {
keyboard: boolean;
absolute_mouse: boolean;
relative_mouse: boolean;
mass_storage: boolean;
audio: boolean;
}
export function useUsbDeviceConfig() {
const { send } = useJsonRpc();
const [usbDeviceConfig, setUsbDeviceConfig] = useState<UsbDeviceConfig | null>(null);
const [loading, setLoading] = useState(true);
const [error, setError] = useState<string | null>(null);
const fetchUsbDeviceConfig = useCallback(() => {
setLoading(true);
setError(null);
send("getUsbDevices", {}, (resp: JsonRpcResponse) => {
setLoading(false);
if ("error" in resp) {
console.error("Failed to load USB devices:", resp.error);
setError(resp.error.data || "Unknown error");
setUsbDeviceConfig(null);
} else {
const config = resp.result as UsbDeviceConfig;
setUsbDeviceConfig(config);
setError(null);
}
});
}, [send]);
useEffect(() => {
fetchUsbDeviceConfig();
}, [fetchUsbDeviceConfig]);
return {
usbDeviceConfig,
loading,
error,
refetch: fetchUsbDeviceConfig,
};
}