nick/DS5Dongle-OLED-Edition-steam-machine
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wip: park audio-crackle investigation + haptic/OLED defaults + debug tooling

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Preserves in-progress work that had been sitting uncommitted in the working
tree (predates this session) so it is protected in git history. This is NOT a
verified/shipped fix — it is parked. Audio path is unverified on hardware and
still carries debug instrumentation.

- src/audio.cpp: drop the 512->480 resampler and retime the 0x36 frame to a
  true 10ms/100Hz grid (SAMPLE_SIZE 64->60, 480-sample buffer) to chase the
  ~45kHz-vs-48kHz speaker underrun theory behind the crackle; dynamic speaker
  sub-report offset; debug printf + Opus-frame-dump instrumentation.
- src/config.cpp: default audio_buffer_length 64->16; auto_haptics_enable
  default 1 (Fallback) -> 0 (Off).
- src/oled.cpp: chunked non-blocking SPI flush (issue #7 OLED-stall angle) and
  a battery-% midpoint display tweak.
- scripts/: audio debug helpers (opus-dump decode, pi audio test, sine ch1/2).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
MarcelineVPQ
2026-06-02 19:11:39 -06:00
co-authored by Claude Opus 4.8
parent 71cead401d
commit 84393c00e8
6 changed files with 375 additions and 37 deletions
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src/config.cpp
+3 -3
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@@ -72,7 +72,7 @@ void config_valid() {
printf("[Config] polling_rate_mode is invalid\n");
}
if (body->audio_buffer_length < 16 || body->audio_buffer_length > 128) {
body->audio_buffer_length = 64;
body->audio_buffer_length = 16; // low buffer avoids the DS5's periodic re-buffer gap
printf("[Config] haptics_buffer_length is invalid\n");
}
if (body->controller_mode > 2) {
@@ -84,8 +84,8 @@ void config_valid() {
printf("[Config] current_slot is invalid\n");
}
if (body->auto_haptics_enable > 3) {
body->auto_haptics_enable = 1; // Fallback default
printf("[Config] auto_haptics_enable invalid, defaulting to 1 (Fallback)\n");
body->auto_haptics_enable = 0; // default OFF (was 1/Fallback) — it derives erratic rumble from the speaker
printf("[Config] auto_haptics_enable invalid, defaulting to 0 (Off)\n");
}
if (body->auto_haptics_gain > 200) {
body->auto_haptics_gain = 100;