Files
firmware/src/main.rs
T
swaits 5ac4b73739 feat: RGB LED support — blinks green on RX, red on TX
- Added RgbLed trait with impl on () for boards without LED
- Added WS2812 driver (driver/ws2812.rs) using ESP32-S3 RMT peripheral
  - 80MHz clock, 12.5ns resolution, 24-bit GRB encoding
  - Zero extra crate dependencies
- Heltec V3/V3-UART/V4: WS2812B on GPIO38 via RMT channel 0
- RAK WisBlock/Wio Tracker: type LedDriver = (), led = None (no-op)
- Display task: green blink on RX packet, red blink on TX packet
- LED auto-off on timer tick (~1s), off when display is off/reset
- LoRaBoard trait gains type LedDriver: RgbLed associated type
- BoardParts gains led: Option<L> field
2026-04-07 11:18:30 -06:00

103 lines
2.7 KiB
Rust

//! DongLoRa firmware — transparent LoRa radio over USB.
//!
//! Three async tasks communicate via static channels:
//!
//! ```text
//! host_task ──Command──► radio_task ──► SX1262
//! ◄──Response── │
//! StatusWatch
//! ▼
//! display_task (optional)
//! ```
//!
//! The host drives everything. The radio idles until commanded.
#![cfg_attr(not(test), no_std)]
#![cfg_attr(not(test), no_main)]
#[cfg(not(test))]
mod board;
#[cfg(not(test))]
mod channel;
#[cfg(not(test))]
mod display;
#[cfg(not(test))]
mod driver;
#[cfg(not(test))]
mod hal;
#[cfg(not(test))]
mod host;
mod protocol;
#[cfg(not(test))]
mod radio;
#[cfg(not(test))]
use embassy_executor::Spawner;
#[cfg(not(test))]
use crate::board::LoRaBoard;
#[cfg(not(test))]
use crate::channel::{CommandChannel, DisplayCommandChannel, ResponseChannel, StatusWatch};
#[cfg(not(test))]
cfg_if::cfg_if! {
if #[cfg(any(feature = "rak_wisblock_4631", feature = "wio_tracker_l1"))] {
use defmt_rtt as _;
use panic_probe as _;
} else if #[cfg(any(feature = "heltec_v3", feature = "heltec_v3_uart", feature = "heltec_v4"))] {
use esp_backtrace as _;
use esp_println as _;
}
}
#[cfg(not(test))]
static COMMANDS: CommandChannel = CommandChannel::new();
#[cfg(not(test))]
static RESPONSES: ResponseChannel = ResponseChannel::new();
#[cfg(not(test))]
static STATUS: StatusWatch = StatusWatch::new();
#[cfg(not(test))]
static DISPLAY_COMMANDS: DisplayCommandChannel = DisplayCommandChannel::new();
#[cfg(not(test))]
cfg_if::cfg_if! {
if #[cfg(any(feature = "rak_wisblock_4631", feature = "wio_tracker_l1"))] {
#[embassy_executor::main]
async fn main(spawner: Spawner) {
run(spawner).await;
}
} else if #[cfg(any(feature = "heltec_v3", feature = "heltec_v3_uart", feature = "heltec_v4"))] {
#[esp_rtos::main]
async fn main(spawner: Spawner) {
run(spawner).await;
}
}
}
#[cfg(not(test))]
async fn run(spawner: Spawner) {
let board = <board::Board as LoRaBoard>::init();
let parts = board.into_parts();
spawner
.spawn(radio::radio_task(parts.radio, &COMMANDS, &RESPONSES, &STATUS))
.expect("spawn radio_task");
spawner
.spawn(host::host_task(
parts.host,
&COMMANDS,
&RESPONSES,
&DISPLAY_COMMANDS,
parts.display.is_some(),
parts.mac,
))
.expect("spawn host_task");
if let Some(dp) = parts.display {
spawner
.spawn(display::display_task(dp, parts.led, &STATUS, &DISPLAY_COMMANDS))
.expect("spawn display_task");
}
}