rcore-tutorial/os/src/drivers/input/mod.rs
2022-09-02 02:58:26 -07:00

75 lines
2.3 KiB
Rust

use crate::{
gui::{Button, Component},
sync::UPIntrFreeCell,
syscall::PAD,
};
use alloc::{string::ToString, sync::Arc};
use core::any::Any;
use embedded_graphics::{
prelude::{Point, Size},
text::Text,
};
use k210_hal::cache::Uncache;
use virtio_drivers::{VirtIOHeader, VirtIOInput};
use crate::drivers::bus::virtio::VirtioHal;
use virtio_input_decoder::{Decoder, Key, KeyType};
use super::GPU_DEVICE;
const VIRTIO5: usize = 0x10005000;
const VIRTIO6: usize = 0x10006000;
struct VirtIOINPUT(UPIntrFreeCell<VirtIOInput<'static, VirtioHal>>);
pub trait INPUTDevice: Send + Sync + Any {
fn handle_irq(&self);
}
lazy_static::lazy_static!(
pub static ref KEYBOARD_DEVICE: Arc<dyn INPUTDevice> = Arc::new(VirtIOINPUT::new(VIRTIO5));
pub static ref MOUSE_DEVICE: Arc<dyn INPUTDevice> = Arc::new(VirtIOINPUT::new(VIRTIO6));
);
impl VirtIOINPUT {
pub fn new(addr: usize) -> Self {
Self(unsafe {
UPIntrFreeCell::new(VirtIOInput::<VirtioHal>::new(&mut *(addr as *mut VirtIOHeader)).unwrap())
})
}
}
impl INPUTDevice for VirtIOINPUT {
fn handle_irq(&self) {
let mut input = self.0.exclusive_access();
input.ack_interrupt();
let event = input.pop_pending_event().unwrap();
let dtype = match Decoder::decode(
event.event_type as usize,
event.code as usize,
event.value as usize,
) {
Ok(dtype) => dtype,
Err(_) => return,
};
match dtype {
virtio_input_decoder::DecodeType::Key(key, r#type) => {
println!("{:?} {:?}", key, r#type);
if r#type == KeyType::Press {
let mut inner = PAD.exclusive_access();
let a = inner.as_ref().unwrap();
match key.to_char() {
Ok(mut k) => {
if k == '\r' {
a.repaint(k.to_string() + "\n")
} else {
a.repaint(k.to_string())
}
}
Err(_) => {}
}
}
}
virtio_input_decoder::DecodeType::Mouse(mouse) => println!("{:?}", mouse),
}
}
}