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fix(firmware): C6 IDF v5.5 guard + HE-LTF host ingest + WITNESS-LOG-110 B1 resolution (#1005) (#1011)

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* fix(firmware): c6_sync_espnow IDF v5.5 send-callback guard + B1 HE-LTF resolution (#1005)

Espressif backported the esp_now_send_cb_t signature change to v5.5
(esp_now_send_info_t = wifi_tx_info_t there), so the #944 guard must be
ESP_IDF_VERSION >= VAL(5,5,0), not MAJOR >= 6.

Validated on this repo's hardware toolchain:
- WITHOUT fix, IDF v5.5.2 esp32c6 build fails with the reporter's exact
  incompatible-pointer error at c6_sync_espnow.c:199 (reproduced)
- WITH fix, clean build on IDF v5.5.2 (esp32c6) AND IDF v5.4 (regression)

Docs: WITNESS-LOG-110 §B1 marked RESOLVED WITH MEASUREMENT (external,
@stuinfla, issue #1005): IDF v5.4 driver downconverts HE->HT; v5.5.2
delivers true HE-LTF (532B / 256 bins / 242 tones, PPDU 0x01 HE-SU).
ADR-110 capability table updated accordingly.

Co-Authored-By: claude-flow <ruv@ruv.net>

* docs: WITNESS-LOG-110 §B1 — in-house HE-LTF replication on the original COM12 C6

84% of 1,525 frames at 532B/PPDU 0x01 (HE-SU) with IDF v5.5.2 + the #1005
guard fix, AP ruv.net 11ax 2.4GHz. Two independent rigs now confirm:
v5.4 downconverts, v5.5.2 delivers 242-tone HE20.

Co-Authored-By: claude-flow <ruv@ruv.net>

* fix(host): 256-bin HE-LTF ingest end-to-end + latent offset bugs (#1005)

Audit of every ADR-018 consumer against live C6 HE20 frames (532B/256-bin):
- sensing-server + CLI calibrate parsers read n_subcarriers from one byte
  (256 decoded as 0) with stale seq/rssi offsets (rssi always 0 — latent,
  pre-existing, confirmed vs firmware csi_collector.c). Fixed to the real
  ADR-018 layout; n_subcarriers u8->u16; byte 18 surfaced as typed PpduType.
- sensing-server probe buffer 256B -> 2048B (532B datagram errored on Windows)
- per-node grid gate: lock densest (n_subcarriers, ppdu_type) grid, re-warm
  on upgrade, skip sparser minority frames — HT-64 never mixes into an
  HE-256 baseline window
- hardware parser: HE-aware bandwidth classification (256-FFT HE20 = 20MHz,
  was Bw160); PpduType/Adr018Flags re-exported
- verbatim live frames (532B HE-SU, 148B HT) embedded as regression fixtures
- archive python parser: bandwidth heuristic mirror fix

Live-validated: calibrate --tier he20 consumed 600x 256-bin frames into an
ADR-135 He20 baseline (242 tones) skipping 94 HT frames; sensing-server
shows node 12 active with real RSSI (-40dBm). 765 tests green across the
three crates; workspace check clean; Python proof PASS.

Co-Authored-By: claude-flow <ruv@ruv.net>

* test(fuzz): esp_netif/ping_sock/ip_addr stubs — un-break ADR-061 fuzz build after #954

csi_collector.c gained esp_netif.h / ping/ping_sock.h / lwip/ip_addr.h
includes for the #954 gateway self-ping; the host-fuzz stub env lacked
them, breaking the fuzz build on main since 5789351b7. Stubs return
no-gateway so the self-ping path early-outs (compiles + links, never
exercised — matches the fuzz threat model which targets frame
serialization, not the network stack).

Co-Authored-By: claude-flow <ruv@ruv.net>
This commit is contained in:
rUv
2026-06-11 11:00:37 -04:00
committed by GitHub
parent 2a307138f2
commit d0e27e652e
15 changed files with 618 additions and 77 deletions
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docs/adr/ADR-110-esp32-c6-firmware-extension.md
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@@ -19,7 +19,7 @@ The production CSI node firmware (`firmware/esp32-csi-node`) was built around th
| C6 capability | What it enables for sensing | Why we can't get it on S3 |
|---|---|---|
| **802.11ax (Wi-Fi 6) HE-LTF CSI** | 242 subcarriers per HE20 frame (vs 52 for HT-LTF), HE-MU/HE-TB PPDU types, OFDMA-aware channel sounding | S3 radio is HT-only (n) |
| **802.11ax (Wi-Fi 6) HE-LTF CSI** | 242 subcarriers per HE20 frame (vs 52 for HT-LTF), HE-MU/HE-TB PPDU types, OFDMA-aware channel sounding. **Hardware-confirmed 2026-06-11** (issue #1005, external production deployment): requires **ESP-IDF ≥ 5.5** — the v5.4 driver blob silently downconverts to 64-subcarrier HT even on a confirmed-HE link; v5.5.2 delivers 532 B frames = 256 bins (242 active tones), PPDU 0x01 (HE-SU). See WITNESS-LOG-110 §B1 (resolved). | S3 radio is HT-only (n) |
| **802.15.4 (Thread / Zigbee)** | Cross-node time-sync over a separate radio — frees Wi-Fi airtime for CSI, ±100 µs alignment possible without coordination traffic on the sensing channel | S3 has no 802.15.4 |
| **TWT (Target Wake Time)** | Sensor negotiates a deterministic wake slot with the AP; CSI cadence becomes scheduler-bounded instead of opportunistic | Requires 802.11ax — S3 can't speak it |
| **LP-core + hibernation (~5 µA)** | Always-on motion gate runs on a separate RISC-V LP core in deep sleep; HP core stays off until a real event | S3 ULP is FSM-only, ~10 µA floor |