From 2d0e0f51f84bd5a2de9cbb82b6fc17d946299172 Mon Sep 17 00:00:00 2001
From: Curly <u007d@humanenginuity.com>
Date: Sun, 23 Feb 2025 07:37:34 -0800
Subject: [PATCH] add `rp235x` blinky_wifi.rs` to support RPi Pico 2 W

---
 examples/rp235x/src/bin/blinky_wifi.rs | 89 ++++++++++++++++++++++++++
 1 file changed, 89 insertions(+)
 create mode 100644 examples/rp235x/src/bin/blinky_wifi.rs

diff --git a/examples/rp235x/src/bin/blinky_wifi.rs b/examples/rp235x/src/bin/blinky_wifi.rs
new file mode 100644
index 000000000..7aeb38f1e
--- /dev/null
+++ b/examples/rp235x/src/bin/blinky_wifi.rs
@@ -0,0 +1,89 @@
+//! This example tests the RP Pico 2 W onboard LED.
+//!
+//! It does not work with the RP Pico 2 board. See `blinky.rs`.
+
+#![no_std]
+#![no_main]
+
+use cyw43_pio::{PioSpi, DEFAULT_CLOCK_DIVIDER};
+use defmt::*;
+use embassy_executor::Spawner;
+use embassy_rp::bind_interrupts;
+use embassy_rp::gpio::{Level, Output};
+use embassy_rp::peripherals::{DMA_CH0, PIO0};
+use embassy_rp::pio::{InterruptHandler, Pio};
+use embassy_time::{Duration, Timer};
+use static_cell::StaticCell;
+use {defmt_rtt as _, panic_probe as _};
+
+// Program metadata for `picotool info`.
+// This isn't needed, but it's recommended to have these minimal entries.
+#[link_section = ".bi_entries"]
+#[used]
+pub static PICOTOOL_ENTRIES: [embassy_rp::binary_info::EntryAddr; 4] = [
+    embassy_rp::binary_info::rp_program_name!(c"Blinky Example"),
+    embassy_rp::binary_info::rp_program_description!(
+        c"This example tests the RP Pico 2 W's onboard LED, connected to GPIO 0 of the cyw43 \
+        (WiFi chip) via PIO 0 over the SPI bus."
+    ),
+    embassy_rp::binary_info::rp_cargo_version!(),
+    embassy_rp::binary_info::rp_program_build_attribute!(),
+];
+
+bind_interrupts!(struct Irqs {
+    PIO0_IRQ_0 => InterruptHandler<PIO0>;
+});
+
+#[embassy_executor::task]
+async fn cyw43_task(runner: cyw43::Runner<'static, Output<'static>, PioSpi<'static, PIO0, 0, DMA_CH0>>) -> ! {
+    runner.run().await
+}
+
+#[embassy_executor::main]
+async fn main(spawner: Spawner) {
+    let p = embassy_rp::init(Default::default());
+    let fw = include_bytes!("../../../../cyw43-firmware/43439A0.bin");
+    let clm = include_bytes!("../../../../cyw43-firmware/43439A0_clm.bin");
+
+    // To make flashing faster for development, you may want to flash the firmwares independently
+    // at hardcoded addresses, instead of baking them into the program with `include_bytes!`:
+    //     probe-rs download ../../cyw43-firmware/43439A0.bin --binary-format bin --chip RP2040 --base-address 0x10100000
+    //     probe-rs download ../../cyw43-firmware/43439A0_clm.bin --binary-format bin --chip RP2040 --base-address 0x10140000
+    //let fw = unsafe { core::slice::from_raw_parts(0x10100000 as *const u8, 230321) };
+    //let clm = unsafe { core::slice::from_raw_parts(0x10140000 as *const u8, 4752) };
+
+    let pwr = Output::new(p.PIN_23, Level::Low);
+    let cs = Output::new(p.PIN_25, Level::High);
+    let mut pio = Pio::new(p.PIO0, Irqs);
+    let spi = PioSpi::new(
+        &mut pio.common,
+        pio.sm0,
+        DEFAULT_CLOCK_DIVIDER,
+        pio.irq0,
+        cs,
+        p.PIN_24,
+        p.PIN_29,
+        p.DMA_CH0,
+    );
+
+    static STATE: StaticCell<cyw43::State> = StaticCell::new();
+    let state = STATE.init(cyw43::State::new());
+    let (_net_device, mut control, runner) = cyw43::new(state, pwr, spi, fw).await;
+    unwrap!(spawner.spawn(cyw43_task(runner)));
+
+    control.init(clm).await;
+    control
+        .set_power_management(cyw43::PowerManagementMode::PowerSave)
+        .await;
+
+    let delay = Duration::from_millis(250);
+    loop {
+        info!("led on!");
+        control.gpio_set(0, true).await;
+        Timer::after(delay).await;
+
+        info!("led off!");
+        control.gpio_set(0, false).await;
+        Timer::after(delay).await;
+    }
+}