style: cargo fmt

src/board/esp32s3.rs

@@ -35,14 +35,22 @@ pub struct RadioParts {
 // SSD1306 display support is Heltec-specific. ESP32-S3 boards that use a
 // different controller (e.g. ThinkNode-M2 uses SH1106) provide their own
 // DisplayParts / DisplayDriver / create_display directly.
-#[cfg(any(feature = "heltec_v3", feature = "heltec_v3_uart", feature = "heltec_v4"))]
+#[cfg(any(
+    feature = "heltec_v3",
+    feature = "heltec_v3_uart",
+    feature = "heltec_v4"
+))]
 pub struct DisplayParts {
     pub i2c: DisplayI2c,
 }
 
 // ── Display driver ──────────────────────────────────────────────────
 
-#[cfg(any(feature = "heltec_v3", feature = "heltec_v3_uart", feature = "heltec_v4"))]
+#[cfg(any(
+    feature = "heltec_v3",
+    feature = "heltec_v3_uart",
+    feature = "heltec_v4"
+))]
 pub type DisplayDriver = ssd1306::Ssd1306Async<
     ssd1306::prelude::I2CInterface<DisplayI2c>,
     ssd1306::size::DisplaySize128x64,
@@ -50,7 +58,11 @@ pub type DisplayDriver = ssd1306::Ssd1306Async<
 >;
 
 /// Construct and initialize an SSD1306 display from raw I2C.
-#[cfg(any(feature = "heltec_v3", feature = "heltec_v3_uart", feature = "heltec_v4"))]
+#[cfg(any(
+    feature = "heltec_v3",
+    feature = "heltec_v3_uart",
+    feature = "heltec_v4"
+))]
 pub async fn create_display(i2c: DisplayI2c) -> Option<DisplayDriver> {
     use ssd1306::mode::DisplayConfigAsync;
     use ssd1306::prelude::{Brightness, DisplayRotation};

src/board/heltec_v3.rs

@@ -14,9 +14,7 @@ use super::traits::{BoardParts, LoRaBoard};
 use crate::driver::simple_led::SimpleLed;
 use crate::hal::esp32s3 as mcu;
 
-pub use super::esp32s3::{
-    create_display, DisplayDriver, DisplayParts, RadioDriver, RadioParts,
-};
+pub use super::esp32s3::{create_display, DisplayDriver, DisplayParts, RadioDriver, RadioParts};
 
 pub type UsbDriver = esp_hal::otg_fs::asynch::Driver<'static>;
 pub type LedDriver = SimpleLed<Output<'static>>;

src/board/heltec_v3_uart.rs

@@ -13,9 +13,7 @@ use super::traits::{BoardParts, LoRaBoard};
 use crate::driver::simple_led::SimpleLed;
 use crate::hal::esp32s3 as mcu;
 
-pub use super::esp32s3::{
-    create_display, DisplayDriver, DisplayParts, RadioDriver, RadioParts,
-};
+pub use super::esp32s3::{create_display, DisplayDriver, DisplayParts, RadioDriver, RadioParts};
 
 pub type UartDriver = esp_hal::uart::Uart<'static, esp_hal::Async>;
 pub type LedDriver = SimpleLed<Output<'static>>;

src/board/heltec_v4.rs

@@ -6,9 +6,7 @@ use super::traits::{BoardParts, LoRaBoard};
 use crate::driver::simple_led::SimpleLed;
 use crate::hal::esp32s3 as mcu;
 
-pub use super::esp32s3::{
-    create_display, DisplayDriver, DisplayParts, RadioDriver, RadioParts,
-};
+pub use super::esp32s3::{create_display, DisplayDriver, DisplayParts, RadioDriver, RadioParts};
 
 pub type UsbDriver = esp_hal::otg_fs::asynch::Driver<'static>;
 

src/board/rak_wisblock_4631.rs

@@ -129,7 +129,12 @@ impl LoRaBoard for Board {
         // ── Display (optional RAK1921 SSD1306 OLED on I2C) ─────
         let twim_buf = mcu::alloc_i2c_buffer();
         let i2c = embassy_nrf::twim::Twim::new(
-            p.TWISPI0, mcu::Irqs, p.P0_13, p.P0_14, twim::Config::default(), twim_buf,
+            p.TWISPI0,
+            mcu::Irqs,
+            p.P0_13,
+            p.P0_14,
+            twim::Config::default(),
+            twim_buf,
         );
         let display = Some(DisplayParts { i2c });
 

src/board/traits.rs

@@ -48,7 +48,9 @@ pub trait LoRaBoard: Sized {
     fn mac_address() -> [u8; 6];
 
     /// Decompose initialized board into peripheral bundles for each task.
-    fn into_parts(self) -> BoardParts<Self::RadioParts, Self::CommParts, Self::DisplayParts, Self::LedDriver>;
+    fn into_parts(
+        self,
+    ) -> BoardParts<Self::RadioParts, Self::CommParts, Self::DisplayParts, Self::LedDriver>;
 }
 
 /// Peripheral bundles for each firmware task, produced by [`LoRaBoard::into_parts`].

src/board/waveshare_rp2040_lora.rs

@@ -21,7 +21,8 @@ pub type LedDriver = crate::driver::simple_led::SimpleLed<Output<'static>>;
 
 // Display types — never instantiated (no OLED on this board), but the
 // trait requires concrete associated types that satisfy the bounds.
-pub type DisplayI2c = embassy_rp::i2c::I2c<'static, embassy_rp::peripherals::I2C0, embassy_rp::i2c::Async>;
+pub type DisplayI2c =
+    embassy_rp::i2c::I2c<'static, embassy_rp::peripherals::I2C0, embassy_rp::i2c::Async>;
 pub type DisplayDriver = ssd1306::Ssd1306Async<
     ssd1306::prelude::I2CInterface<DisplayI2c>,
     ssd1306::size::DisplaySize128x64,
@@ -78,7 +79,8 @@ impl LoRaBoard for Board {
         let p = self.p;
 
         // ── MAC address from flash unique ID ───────────────────
-        let mut flash = embassy_rp::flash::Flash::<_, _, { 2 * 1024 * 1024 }>::new_blocking(p.FLASH);
+        let mut flash =
+            embassy_rp::flash::Flash::<_, _, { 2 * 1024 * 1024 }>::new_blocking(p.FLASH);
         mcu::init_mac(&mut flash);
 
         // ── SPI1 bus for SX1262 ────────────────────────────────
@@ -92,7 +94,14 @@ impl LoRaBoard for Board {
         let mut spi_cfg = spi::Config::default();
         spi_cfg.frequency = 1_000_000;
         let spi = spi::Spi::new(
-            p.SPI1, p.PIN_14, p.PIN_15, p.PIN_24, p.DMA_CH0, p.DMA_CH1, mcu::Irqs, spi_cfg,
+            p.SPI1,
+            p.PIN_14,
+            p.PIN_15,
+            p.PIN_24,
+            p.DMA_CH0,
+            p.DMA_CH1,
+            mcu::Irqs,
+            spi_cfg,
         );
         let spi_bus = mcu::share_spi_bus(spi);
 

src/board/wio_tracker_l1.rs

@@ -128,7 +128,12 @@ impl LoRaBoard for Board {
         // ── Display (SH1106 OLED on I2C) ────────────────────────
         let twim_buf = mcu::alloc_i2c_buffer();
         let i2c = embassy_nrf::twim::Twim::new(
-            p.TWISPI0, mcu::Irqs, p.P0_06, p.P0_05, twim::Config::default(), twim_buf,
+            p.TWISPI0,
+            mcu::Irqs,
+            p.P0_06,
+            p.P0_05,
+            twim::Config::default(),
+            twim_buf,
         );
         let display = Some(DisplayParts { i2c });