Rename examples/nrf to examples/nrf52840

examples/nrf52840/src/bin/usb_hid_mouse.rs

@@ -0,0 +1,124 @@
+#![no_std]
+#![no_main]
+#![feature(type_alias_impl_trait)]
+
+use core::mem;
+
+use defmt::*;
+use embassy_executor::Spawner;
+use embassy_futures::join::join;
+use embassy_nrf::usb::{Driver, PowerUsb};
+use embassy_nrf::{interrupt, pac};
+use embassy_time::{Duration, Timer};
+use embassy_usb::class::hid::{HidWriter, ReportId, RequestHandler, State};
+use embassy_usb::control::OutResponse;
+use embassy_usb::{Builder, Config};
+use usbd_hid::descriptor::{MouseReport, SerializedDescriptor};
+use {defmt_rtt as _, panic_probe as _};
+
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    let p = embassy_nrf::init(Default::default());
+    let clock: pac::CLOCK = unsafe { mem::transmute(()) };
+
+    info!("Enabling ext hfosc...");
+    clock.tasks_hfclkstart.write(|w| unsafe { w.bits(1) });
+    while clock.events_hfclkstarted.read().bits() != 1 {}
+
+    // Create the driver, from the HAL.
+    let irq = interrupt::take!(USBD);
+    let power_irq = interrupt::take!(POWER_CLOCK);
+    let driver = Driver::new(p.USBD, irq, PowerUsb::new(power_irq));
+
+    // Create embassy-usb Config
+    let mut config = Config::new(0xc0de, 0xcafe);
+    config.manufacturer = Some("Embassy");
+    config.product = Some("HID mouse example");
+    config.serial_number = Some("12345678");
+    config.max_power = 100;
+    config.max_packet_size_0 = 64;
+
+    // Create embassy-usb DeviceBuilder using the driver and config.
+    // It needs some buffers for building the descriptors.
+    let mut device_descriptor = [0; 256];
+    let mut config_descriptor = [0; 256];
+    let mut bos_descriptor = [0; 256];
+    let mut control_buf = [0; 64];
+    let request_handler = MyRequestHandler {};
+
+    let mut state = State::new();
+
+    let mut builder = Builder::new(
+        driver,
+        config,
+        &mut device_descriptor,
+        &mut config_descriptor,
+        &mut bos_descriptor,
+        &mut control_buf,
+        None,
+    );
+
+    // Create classes on the builder.
+    let config = embassy_usb::class::hid::Config {
+        report_descriptor: MouseReport::desc(),
+        request_handler: Some(&request_handler),
+        poll_ms: 60,
+        max_packet_size: 8,
+    };
+
+    let mut writer = HidWriter::<_, 5>::new(&mut builder, &mut state, config);
+
+    // Build the builder.
+    let mut usb = builder.build();
+
+    // Run the USB device.
+    let usb_fut = usb.run();
+
+    // Do stuff with the class!
+    let hid_fut = async {
+        let mut y: i8 = 5;
+        loop {
+            Timer::after(Duration::from_millis(500)).await;
+
+            y = -y;
+            let report = MouseReport {
+                buttons: 0,
+                x: 0,
+                y,
+                wheel: 0,
+                pan: 0,
+            };
+            match writer.write_serialize(&report).await {
+                Ok(()) => {}
+                Err(e) => warn!("Failed to send report: {:?}", e),
+            }
+        }
+    };
+
+    // Run everything concurrently.
+    // If we had made everything `'static` above instead, we could do this using separate tasks instead.
+    join(usb_fut, hid_fut).await;
+}
+
+struct MyRequestHandler {}
+
+impl RequestHandler for MyRequestHandler {
+    fn get_report(&self, id: ReportId, _buf: &mut [u8]) -> Option<usize> {
+        info!("Get report for {:?}", id);
+        None
+    }
+
+    fn set_report(&self, id: ReportId, data: &[u8]) -> OutResponse {
+        info!("Set report for {:?}: {=[u8]}", id, data);
+        OutResponse::Accepted
+    }
+
+    fn set_idle_ms(&self, id: Option<ReportId>, dur: u32) {
+        info!("Set idle rate for {:?} to {:?}", id, dur);
+    }
+
+    fn get_idle_ms(&self, id: Option<ReportId>) -> Option<u32> {
+        info!("Get idle rate for {:?}", id);
+        None
+    }
+}