Wire-incompatible break with the 0.x protocol. Every host-side path (UART, USB CDC, framing, radio dispatcher, display update channel) speaks the v2 wire format defined in PROTOCOL.md.
* Replace the host framing path with streaming FrameDecoder + encode_frame from donglora-protocol, matching the new (type_id, tag, payload) shape.
* Update src/channel.rs and src/host/{uart,usb,framing}.rs for the new frame semantics: per-request tag echo, CRC checked in the decoder, async ERR fan-out on tag 0.
* Rework src/radio.rs to emit RX / TX_DONE / OK / ERR messages in v2 shape, including RxOrigin, TxDonePayload, and SetConfigResult codes.
* Update src/protocol.rs glue to re-export v2 types from donglora-protocol and drop the legacy 0.x shim surface.
* Refresh PROTOCOL.md to the v2 normative spec (kept in sync with the donglora-protocol crate).
* Minor display and main-loop cleanups needed for the new radio event shape.
Pulls the wire protocol types and COBS framing out of firmware and into
the sibling ../protocol crate so client-rs, mux-rs, and bridge can share
them. Firmware's src/protocol.rs is now a thin re-export shim preserving
every crate::protocol::\* call site; src/host/framing.rs drops the
in-tree CobsDecoder / cobs_encode_response and re-exports the codec,
keeping only route_command (which needs embassy channels).
All seven board features still build clean, cargo fmt clean, cargo test
green.
- Created host/ module with internal cfg dispatch (USB vs UART)
- Moved usb/task.rs → host/usb.rs, uart/task.rs → host/uart.rs
- Moved protocol_io.rs → host/framing.rs
- Renamed usb_task/uart_task to host_task (uniform name)
- Removed all host-comm cfg from main.rs
- The run() function now has ZERO board-specific conditional compilation
- Deleted old usb/, uart/, protocol_io.rs modules
swaits