Files
client-rs/src/lib.rs
T
swaits 6937ad47ba feat!: Protocol v2 client rewrite with Dongle/Session model
The full 1.0 client surface, matching the protocol v2 wire definitions from donglora-protocol 1.0.0.

* Public API is now async. The blocking Client<T: Transport> is replaced by Dongle (from donglora_client::connect / connect_with / ConnectOptions).

* src/client.rs and src/codec.rs are removed in favor of src/dongle.rs (high-level surface), src/session.rs (per-client tag/slot state), src/retry.rs (RetryPolicy + tx_with_retry), src/errors.rs (thiserror-based ClientError / ClientResult). src/protocol.rs is replaced by direct donglora-protocol imports.

* Transport is now tokio-serial for USB and tokio::net::{UnixStream, TcpStream} for mux, replacing the blocking serial + shim model.

* Dongle::tx_with_retry(data, &RetryPolicy) implements PROTOCOL.md §6.10 randomized backoff for CHANNEL_BUSY / EBUSY, returning a TxOutcome with per-attempt trace.

* Background keepalive task pings every 500 ms on host idle, tracking the 1 s inactivity timeout from §3.4 with 2x margin. Disable via ConnectOptions::keepalive(false).

* Auto-recovery from ERR(ENOTCONFIGURED): the Dongle caches the last SET_CONFIG and silently re-applies on session drop, retrying once.

* Error taxonomy switches from anyhow to thiserror. Transport-level conditions (Timeout, TransportClosed, ReaderExited, BadFrame) are first-class.

* Examples rewritten for the async API: examples/ping.rs, examples/tx.rs, examples/rx.rs all target the MeshCore US preset (910.525 MHz / BW 62.5 / SF 7 / CR 4/5 / sync 0x1424 / 20 dBm). examples/common/mod.rs holds the shared helper.

* tests/vectors.rs gains protocol-level roundtrip coverage anchored to the published donglora-protocol 1.0.0 types.
2026-04-22 09:45:38 -06:00

77 lines
2.8 KiB
Rust

//! DongLoRa host library — connect, configure, send/receive LoRa packets.
//!
//! Implements the DongLoRa Protocol v2 on top of the
//! [`donglora-protocol`](donglora_protocol) wire crate. All I/O is
//! async via tokio; the public surface mirrors the Python client in
//! `client-py/`.
//!
//! # Quick start
//!
//! ```no_run
//! # async fn demo() -> Result<(), donglora_client::ClientError> {
//! use donglora_client::{
//! connect, LoRaBandwidth, LoRaCodingRate, LoRaConfig, LoRaHeaderMode, Modulation,
//! };
//!
//! let dongle = connect().await?;
//! dongle.set_config(Modulation::LoRa(LoRaConfig {
//! freq_hz: 910_525_000,
//! sf: 7,
//! bw: LoRaBandwidth::Khz62,
//! cr: LoRaCodingRate::Cr4_5,
//! preamble_len: 16,
//! sync_word: 0x1424,
//! tx_power_dbm: 20,
//! header_mode: LoRaHeaderMode::Explicit,
//! payload_crc: true,
//! iq_invert: false,
//! })).await?;
//! dongle.tx(b"hello world").await?;
//! # Ok(()) }
//! ```
//!
//! # Module layout
//!
//! - [`connect`] — auto-discovery + [`ConnectOptions`] builder.
//! - [`dongle`] — public [`Dongle`] radio session type.
//! - [`session`] — internal async plumbing (not public).
//! - [`transport`] — tokio-based byte-stream transports.
//! - [`errors`] — [`ClientError`] taxonomy.
//! - [`retry`] — [`RetryPolicy`] + [`TxOutcome`] for `tx_with_retry`.
//! - [`discovery`] — USB VID/PID scan + async `wait_for_device`.
#![forbid(unsafe_code)]
pub mod connect;
pub mod discovery;
pub mod dongle;
pub mod errors;
pub mod retry;
pub mod session;
pub mod transport;
// ── Flat re-exports for convenience ─────────────────────────────────
#[cfg(unix)]
pub use connect::mux_unix_connect;
pub use connect::{
ConnectOptions, connect, connect_mux_auto, connect_mux_auto_with, connect_with, default_socket_path,
find_mux_socket, mux_tcp_connect, try_connect, try_connect_with,
};
pub use discovery::{USB_PID, USB_VID, find_port, wait_for_device};
pub use dongle::{Dongle, KEEPALIVE_INTERVAL, TransportKind};
pub use errors::{ClientError, ClientResult};
pub use retry::{RetryPolicy, TxAttempt, TxOutcome};
#[cfg(unix)]
pub use transport::UnixSocketTransport;
pub use transport::{AnyTransport, SerialTransport, TcpTransport, Transport};
// Re-export the protocol crate's user-facing types so callers don't need
// to add `donglora-protocol` as a direct dep.
pub use donglora_protocol::{
Command, DeviceMessage, ErrorCode, FlrcBitrate, FlrcBt, FlrcCodingRate, FlrcConfig, FlrcPreambleLen, FskConfig,
Info, LoRaBandwidth, LoRaCodingRate, LoRaConfig, LoRaHeaderMode, LrFhssBandwidth, LrFhssCodingRate, LrFhssConfig,
LrFhssGrid, Modulation, ModulationId, OkPayload, Owner, RadioChipId, RxOrigin, RxPayload, SetConfigResult,
SetConfigResultCode, TxDonePayload, TxFlags, TxResult, cap,
};