1 use alloc::{string::String, sync::Arc}; 2 use system_error::SystemError; 3 4 use crate::exception::{irqdesc::IrqReturn, IrqNumber}; 5 6 use super::base::device::{driver::Driver, Device, DeviceId}; 7 8 pub(super) mod irq; 9 pub mod mmio; 10 pub mod sysfs; 11 pub mod transport; 12 pub mod transport_pci; 13 #[allow(clippy::module_inception)] 14 pub mod virtio; 15 pub mod virtio_impl; 16 17 /// virtio 设备厂商ID 18 pub const VIRTIO_VENDOR_ID: u16 = 0x1af4; 19 20 pub trait VirtIODevice: Device { 21 fn handle_irq(&self, _irq: IrqNumber) -> Result<IrqReturn, SystemError>; 22 23 fn dev_id(&self) -> &Arc<DeviceId>; 24 25 fn set_device_name(&self, name: String); 26 27 fn device_name(&self) -> String; 28 29 fn set_virtio_device_index(&self, index: VirtIODeviceIndex); 30 31 fn virtio_device_index(&self) -> Option<VirtIODeviceIndex>; 32 33 /// virtio 设备类型 34 fn device_type_id(&self) -> u32; 35 36 /// virtio 设备厂商 37 fn vendor(&self) -> u32; 38 } 39 40 pub trait VirtIODriver: Driver { 41 fn probe(&self, device: &Arc<dyn VirtIODevice>) -> Result<(), SystemError>; 42 } 43 44 int_like!(VirtIODeviceIndex, usize); 45