RB23xx: firmware upload over Wi-Fi Soft-AP - #7
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RailBOX reboots after POST /upload, so treat RST-after-write as success and join the decoder AP with WPA2-PSK instead of open association. Co-authored-by: Cursor <cursoragent@cursor.com>
Shared job code no longer matches on driver id; each driver advertises max bytes, allowed reach modes, ESP image policy, and RST-after-write via capabilities.firmware and hello exposes the same fields. Co-authored-by: Cursor <cursoragent@cursor.com>
…lback Move softap_psk into DriverCapabilities (public factory default, not a secret) and remove the per-driver softap_psk() method. Add update_firmware(transport, image, filename, progress) to the DeviceDriver trait so the registry dispatches uniformly instead of matching per-driver signatures; WiFred/Fred return a not-supported error from their trait impls, removing the unreachable registry arms. Replace FirmwareReach with ReachMode directly in FirmwareModes::allows (Z21 -> false). Implement wpa_supplicant fallback in Nl80211Radio::associate: when nl80211 CONNECT with a PMK does not produce carrier (brcmfmac on Pi 5 does not offload the 4-way handshake), spawn wpa_supplicant on the programming interface with a minimal config for the duration of the job and kill it on release. The supplicant runs in the foreground so its lifetime is tied to the radio handle. Co-authored-by: Cursor <cursoragent@cursor.com>
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RB23xx is a family of RailBOX sound decoders (RB2300 / RB2310 / RB2302) used in model railroading. To upload firmware, you enable function F28 on the decoder — it then brings up its own Wi-Fi hotspot (Soft-AP) with a factory password and a simple file server. This PR teaches wireless-programmer how to find that hotspot, connect to it, and upload a
.binfile the same way the existingrbCLI does.After a scan, the daemon joins the decoder's AP (WPA2-PSK; on Pi 5 with brcmfmac, if nl80211 alone cannot complete the handshake, it temporarily starts
wpa_supplicantand kills it when the job finishes). It then POSTs the firmware image to the decoder. A dropped connection after the full write counts as success — the decoder reboots. Limit 5 MiB, 2-minute timeout, Soft-AP mode only.Test plan
cargo fmt --allcargo clippy --workspace --all-targets --locked -- -D warningscargo test --workspace --lockedupdate-firmware --driver rb23xx --file firmware.binon a real RB23xx