//! This example uses the RP Pico W board Wifi chip (cyw43).
//! Scans Wifi for ssid names.

#![no_std]
#![no_main]
#![allow(async_fn_in_trait)]

use core::str;

use cyw43_pio::PioSpi;
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 static_cell::StaticCell;
use {defmt_rtt as _, panic_probe as _};

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) {
    info!("Hello World!");

    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 43439A0.bin --binary-format bin --chip RP2040 --base-address 0x10100000
    //     probe-rs download 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, 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 mut scanner = control.scan(Default::default()).await;
    while let Some(bss) = scanner.next().await {
        if let Ok(ssid_str) = str::from_utf8(&bss.ssid) {
            info!("scanned {} == {:x}", ssid_str, bss.bssid);
        }
    }
}
