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The virtual pad wore one AUX node where a real DualSense shows a three-node split #259

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enricobuehler merged 1 commits from worktree-pad-sink-real-topology into main 2026-08-15 22:39:51 +00:00
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+667 -293
2 changed files with 667 additions and 293 deletions
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crates/punktfunk-host/src/audio/linux/pad_sink.rs
+646 -282
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File diff suppressed because it is too large Load Diff
crates/punktfunk-host/src/devtest.rs
+21 -11
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@@ -231,11 +231,13 @@ pub fn dualsense_test(args: &[String]) -> Result<()> {
Ok(())
}
/// Mint one pad-audio PipeWire sink (the Linux 0xD1 source, `audio::pad_sink`) and capture
/// from it — the WP3 on-glass gate with no client involved. Verify the identity with
/// `pactl list sinks` (name/description/proplist) and drive it with
/// `pw-play --target <node.name> <file>` (or `paplay -d <node.name>`); captured chunks print
/// a per-second summary here. `--pad N` (default 0), `--edge`, `--seconds N` (default 30).
/// Mint one pad's audio node graph (the Linux 0xD1 source, `audio::pad_sink`) and capture the
/// mix — the WP3 on-glass gate with no client involved. Three nodes appear, mirroring the split a
/// physically connected DualSense presents: a mono `Speaker__sink`, a positioned-quad
/// `SpeakerHaptic__sink`, and the hidden AUX parent. Verify the identity with `pactl list sinks`
/// (name/description/proplist) and drive any of them with `pw-play --target <node.name>`;
/// captured chunks print a per-second summary here. `--pad N` (default 0), `--edge`,
/// `--seconds N` (default 30).
#[cfg(target_os = "linux")]
pub fn pad_sink_test(args: &[String]) -> Result<()> {
use crate::audio::AudioCapturer as _;
@@ -256,18 +258,26 @@ pub fn pad_sink_test(args: &[String]) -> Result<()> {
let mut cap = crate::audio::pad_sink::PadSinkCapturer::open(pad, edge)
.context("mint pad-audio sink (is PipeWire running in this session?)")?;
println!(
"pad sink minted: node.name = {}\n api.alsa.split.name = {} (what GE-Proton opens as \
pipewire:NODE=…)\n inspect: pactl list sinks | grep -A25 Speaker__sink\n \
drive it: pw-play --target '{}' --channel-map 'AUX0,AUX1,AUX2,AUX3' <48k-file>\n \
(a POSITIONED wav folds into the speaker pair and never reaches the coils — the \
channel-map is not optional)\nCapturing for {secs}s…",
"pad nodes minted (the split a real DualSense presents):\n \
speaker sink = {} (mono — GE-Proton's is_dualsense_speaker_sink target)\n \
haptic sink = {} (4ch POSITIONED FL,FR,RL,RR — the public quad a real pad shows)\n \
parent = {} (4ch AUX0..AUX3, hidden — what GE opens as pipewire:NODE=…)\n \
inspect: pactl list sinks | grep -A25 Speaker\n \
drive the coils via the POSITIONED sink (what a real pad's writers use):\n \
pw-play --target '{}' --channel-map 'front-left,front-right,rear-left,rear-right' <48k-file>\n \
drive the coils via the AUX parent (GE's own leg):\n \
pw-play --target '{}' --channel-map 'AUX0,AUX1,AUX2,AUX3' <48k-file>\n \
(a POSITIONED wav aimed at the AUX PARENT still folds into the speaker pair — that is \
why the positioned sink exists)\nCapturing for {secs}s…",
cap.node_name,
cap.haptic_name,
if cap.split_name.is_empty() {
"(suppressed)"
} else {
cap.split_name.as_str()
},
cap.node_name
cap.haptic_name,
cap.split_name,
);
let deadline = Instant::now() + Duration::from_secs(secs);
let (mut chunks, mut samples) = (0u64, 0u64);