#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]

use defmt::*;
use embassy_executor::Spawner;
use embassy_stm32::bind_interrupts;
use embassy_stm32::ipcc::{Config, ReceiveInterruptHandler, TransmitInterruptHandler};
use embassy_stm32::rcc::WPAN_DEFAULT;
use embassy_stm32_wpan::TlMbox;
use embassy_time::{Duration, Timer};
use {defmt_rtt as _, panic_probe as _};

bind_interrupts!(struct Irqs{
    IPCC_C1_RX => ReceiveInterruptHandler;
    IPCC_C1_TX => TransmitInterruptHandler;
});

#[embassy_executor::main]
async fn main(_spawner: Spawner) {
    /*
        How to make this work:

        - Obtain a NUCLEO-STM32WB55 from your preferred supplier.
        - Download and Install STM32CubeProgrammer.
        - Download stm32wb5x_FUS_fw.bin, stm32wb5x_BLE_Mac_802_15_4_fw.bin, and Release_Notes.html from
          gh:STMicroelectronics/STM32CubeWB@2234d97/Projects/STM32WB_Copro_Wireless_Binaries/STM32WB5x
        - Open STM32CubeProgrammer
        - On the right-hand pane, click "firmware upgrade" to upgrade the st-link firmware.
        - Once complete, click connect to connect to the device.
        - On the left hand pane, click the RSS signal icon to open "Firmware Upgrade Services".
        - In the Release_Notes.html, find the memory address that corresponds to your device for the stm32wb5x_FUS_fw.bin file
        - Select that file, the memory address, "verify download", and then "Firmware Upgrade".
        - Once complete, in the Release_Notes.html, find the memory address that corresponds to your device for the
          stm32wb5x_BLE_Mac_802_15_4_fw.bin file. It should not be the same memory address.
        - Select that file, the memory address, "verify download", and then "Firmware Upgrade".
        - Select "Start Wireless Stack".
        - Disconnect from the device.
        - In the examples folder for stm32wb, modify the memory.x file to match your target device.
        - Run this example.

        Note: extended stack versions are not supported at this time. Do not attempt to install a stack with "extended" in the name.
    */

    let mut config = embassy_stm32::Config::default();
    config.rcc = WPAN_DEFAULT;
    let p = embassy_stm32::init(config);
    info!("Hello World!");

    let config = Config::default();
    let mbox = TlMbox::init(p.IPCC, Irqs, config);

    loop {
        let wireless_fw_info = mbox.sys_subsystem.wireless_fw_info();
        match wireless_fw_info {
            None => info!("not yet initialized"),
            Some(fw_info) => {
                let version_major = fw_info.version_major();
                let version_minor = fw_info.version_minor();
                let subversion = fw_info.subversion();

                let sram2a_size = fw_info.sram2a_size();
                let sram2b_size = fw_info.sram2b_size();

                info!(
                    "version {}.{}.{} - SRAM2a {} - SRAM2b {}",
                    version_major, version_minor, subversion, sram2a_size, sram2b_size
                );

                break;
            }
        }

        Timer::after(Duration::from_millis(50)).await;
    }

    info!("Test OK");
    cortex_m::asm::bkpt();
}