yggdrasil/src/device/mod.rs

//! Device management and interfaces

use device_api::{manager::DeviceManager, Device, DeviceId};

use crate::sync::{IrqSafeSpinlock, IrqSafeSpinlockGuard};

#[cfg(target_arch = "aarch64")]
pub mod devtree;

// TODO bus device support on aarch64
#[cfg(not(target_arch = "aarch64"))]
pub mod bus;

pub mod display;
pub mod power;
pub mod serial;
pub mod timer;
pub mod tty;

static DEVICE_MANAGER: IrqSafeSpinlock<DeviceManager> = IrqSafeSpinlock::new(DeviceManager::new());

/// Adds a device to the kernel's device table and returns the ID assigned to it
pub fn register_device(device: &'static dyn Device) -> DeviceId {
    debugln!("Register {:?}", device.display_name());
    DEVICE_MANAGER.lock().register(device)
}

/// Returns a safe reference to the kernel's [DeviceManager] instance
pub fn manager_lock<'a>() -> IrqSafeSpinlockGuard<'a, DeviceManager> {
    DEVICE_MANAGER.lock()
}