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fix: USB-faithful out-of-box defaults (1000Hz polling, mic off)

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Audit of every default behavior vs a wired-USB DualSense found the firmware already near-identical for input; only two defaults diverged meaningfully:

- polling_rate_mode 0 (250Hz) -> 2 (realtime/1000Hz): match a wired DS5's 1ms input latency instead of polling 4x slower. Mode 2 also bypasses the report-throttle used by the 250/500Hz modes. NEEDS HIL SOAK-TEST (realtime drops the throttle) before this branch merges to master.

- bt_mic_enable 1 -> 0 (off): the BT mic has a known 2x-playback-rate bug (#10), so it is opt-in until root-caused on hardware.

Both only affect fresh flashes / Reset-to-defaults; existing saved configs keep their values.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
MarcelineVPQ
2026-06-04 19:24:06 -06:00
co-authored by Claude Opus 4.8
parent 878a742bfc
commit 333201e1ec
2 changed files with 21 additions and 6 deletions
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CHANGELOG.md
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@@ -8,6 +8,15 @@ Format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/). Version
## [Unreleased]
### Changed
- **`polling_rate_mode` now defaults to realtime / 1000 Hz** (was 250 Hz) so a fresh flash matches a wired DualSense's 1 ms input latency instead of polling 4× slower. Mode 2 also bypasses the report-throttling used by the 250/500 Hz modes, forwarding every BT input report immediately. Existing saved configs keep their value; this only affects fresh flashes / Reset-to-defaults. (Out-of-box "acts like USB" pass.)
- **`bt_mic_enable` now defaults to Off** (was On) — the DualSense BT microphone path has a confirmed playback-rate bug (issue #10: recordings come out ~2× too fast / half-duration). Until that's root-caused on hardware, the mic is opt-in: fresh flashes / Reset-to-defaults boot with it off, and it can be turned on from the OLED **Settings** screen (`BT Mic`) or the web config. Existing saved configs keep their current value. (Web config default should be flipped to match in `DS5Dongle-OLED-Config-Web`.)
### Known issues
- **BT microphone records ~2× too fast (#10).** The mic playout stage is wall-clock paced at 10 ms / 480 samples into a 48 kHz endpoint, which should be real-time, so the 2× points at the on-wire frame size/rate differing from the assumed 480 samples. Needs the OLED **Diagnostics** `Mic dec=` (samples per `opus_decode`) and `Mic in/s` (arrival rate) read on hardware to make the fix deterministic — `Mic dec=240` would confirm a half-rate stream. Mic is opt-in (off by default) in the meantime.
---
## [0.6.11-oled-edition] — 2026-06-02