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feat(remap): on-dongle button remapping over 0xF6/0xF7

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16-entry source→target table in its own flash sector (-3, magic DS5\x03),
identity default, 0xFF = disabled. Applied to the OUTGOING host report copy
only — raw interrupt_in_data (OLED screens + PS+Mute reboot combo) stays
physical. Edited via the existing 0xF6/0xF7 vendor reports with a hardened
RM+version frame (no HID-descriptor change, so Windows enumeration is
unaffected) plus a revision counter the host polls to confirm a write.
Apply logic + button set ported from SundayMoments/DS5_Bridge (credit).

scripts/remap_test.py exercises the path over /dev/hidraw without the web
tool. Verified on hardware: swap applied, read back, survived reboot.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
MarcelineVPQ
2026-05-24 10:42:29 -06:00
co-authored by Claude Opus 4.7
parent da63e2bb72
commit 1b1944c006
7 changed files with 443 additions and 4 deletions
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CHANGELOG.md
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@@ -8,6 +8,10 @@ Format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/). Version
## [Unreleased]
### Added
- **Button remapping.** Any of the 16 digital controls (face buttons, D-pad, shoulders/triggers, stick clicks, Create/Options) can be remapped to any other — stored on the dongle, applied transparently before the host sees the report, so it works on every OS and every game with no host-side software. The remap table lives in its own dedicated flash sector (`PICO_FLASH_SIZE_BYTES - 3·FLASH_SECTOR_SIZE`, magic `DS5\x03`, below the slots sector) and survives reboot; identity (no remap) is the default. Multiple sources mapping to one target OR together (analog L2/R2 take the max); a source can be set to *disabled* (`0xFF`). The remap acts on the **outgoing host report copy only** — the raw input the OLED screens and the PS+Mute reboot combo read is untouched. Edited over the existing `0xF6`/`0xF7` vendor reports with a hardened `RM`+version frame (**no HID-descriptor change**, so Windows enumeration is unaffected) and a revision counter the host polls to confirm a write landed. New `src/remap.{h,cpp}`; apply logic + button set ported from [SundayMoments/DS5_Bridge](https://github.com/SundayMoments/DS5_Bridge) (credit). Dev helper `scripts/remap_test.py` exercises the path over `/dev/hidraw` without the web tool.
### Changed
- **BT microphone now has packet-loss concealment (PLC).** The mic decode path gained a small decoded-frame jitter buffer (8 frames) drained at a steady 10 ms playout cadence: bursty BT delivery is smoothed, and a dropped mic frame during an active session is concealed with an Opus PLC frame (`opus_decode(decoder, NULL, 0, …)`) instead of leaving a hole the host hears as a click/dropout. Playout pre-buffers 3 frames and stops after 300 ms of no real frames (so it never emits comfort noise when the mic is idle). A new **`Mic PLC:`** counter on the Diagnostics screen climbs only when concealment fires — effectively a live BT link-quality gauge. Verified: forced BT loss kept the captured audio gap-free (longest zero-run ~0 ms) while the counter climbed. Design ported from [SundayMoments/DS5_Bridge](https://github.com/SundayMoments/DS5_Bridge) (credit). Adds ~30 ms mic latency (the pre-buffer).