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use alloc::{sync::Arc, vec::Vec};
use core::convert::From;
use lock::{RwLock, RwLockReadGuard};
use zcore_drivers::scheme::{
BlockScheme, DisplayScheme, InputScheme, IrqScheme, NetScheme, Scheme, UartScheme,
};
use zcore_drivers::{Device, DeviceError};
pub use zcore_drivers::{prelude, scheme};
pub struct DeviceList<T: Scheme + ?Sized>(RwLock<Vec<Arc<T>>>);
impl<T: Scheme + ?Sized> DeviceList<T> {
fn add(&self, dev: Arc<T>) {
self.0.write().push(dev);
}
pub fn as_vec(&self) -> RwLockReadGuard<'_, Vec<Arc<T>>> {
self.0.read()
}
pub fn try_get(&self, idx: usize) -> Option<Arc<T>> {
self.0.read().get(idx).cloned()
}
pub fn find(&self, name: &str) -> Option<Arc<T>> {
self.0.read().iter().find(|d| d.name() == name).cloned()
}
pub fn first(&self) -> Option<Arc<T>> {
self.try_get(0)
}
pub fn first_unwrap(&self) -> Arc<T> {
self.first()
.unwrap_or_else(|| panic!("device not initialized: {}", core::any::type_name::<T>()))
}
}
impl<T: Scheme + ?Sized> Default for DeviceList<T> {
fn default() -> Self {
Self(RwLock::new(Vec::new()))
}
}
#[derive(Default)]
struct AllDeviceList {
block: DeviceList<dyn BlockScheme>,
display: DeviceList<dyn DisplayScheme>,
input: DeviceList<dyn InputScheme>,
irq: DeviceList<dyn IrqScheme>,
net: DeviceList<dyn NetScheme>,
uart: DeviceList<dyn UartScheme>,
}
impl AllDeviceList {
pub fn add_device(&self, dev: Device) {
match dev {
Device::Block(d) => self.block.add(d),
Device::Display(d) => self.display.add(d),
Device::Input(d) => self.input.add(d),
Device::Irq(d) => self.irq.add(d),
Device::Net(d) => self.net.add(d),
Device::Uart(d) => self.uart.add(d),
}
}
}
lazy_static! {
static ref DEVICES: AllDeviceList = AllDeviceList::default();
}
pub(crate) fn add_device(dev: Device) {
DEVICES.add_device(dev)
}
pub fn all_block() -> &'static DeviceList<dyn BlockScheme> {
&DEVICES.block
}
pub fn all_display() -> &'static DeviceList<dyn DisplayScheme> {
&DEVICES.display
}
pub fn all_input() -> &'static DeviceList<dyn InputScheme> {
&DEVICES.input
}
pub fn all_irq() -> &'static DeviceList<dyn IrqScheme> {
&DEVICES.irq
}
pub fn all_net() -> &'static DeviceList<dyn NetScheme> {
&DEVICES.net
}
pub fn all_uart() -> &'static DeviceList<dyn UartScheme> {
&DEVICES.uart
}
impl From<DeviceError> for crate::HalError {
fn from(err: DeviceError) -> Self {
warn!("{:?}", err);
Self
}
}
#[cfg(not(feature = "libos"))]
mod virtio_drivers_ffi {
use crate::{PhysAddr, VirtAddr, KCONFIG, KHANDLER, PAGE_SIZE};
#[no_mangle]
extern "C" fn virtio_dma_alloc(pages: usize) -> PhysAddr {
let paddr = KHANDLER.frame_alloc_contiguous(pages, 0).unwrap();
trace!("alloc DMA: paddr={:#x}, pages={}", paddr, pages);
paddr
}
#[no_mangle]
extern "C" fn virtio_dma_dealloc(paddr: PhysAddr, pages: usize) -> i32 {
for i in 0..pages {
KHANDLER.frame_dealloc(paddr + i * PAGE_SIZE);
}
trace!("dealloc DMA: paddr={:#x}, pages={}", paddr, pages);
0
}
#[no_mangle]
extern "C" fn virtio_phys_to_virt(paddr: PhysAddr) -> VirtAddr {
paddr + KCONFIG.phys_to_virt_offset
}
#[no_mangle]
extern "C" fn virtio_virt_to_phys(vaddr: VirtAddr) -> PhysAddr {
vaddr - KCONFIG.phys_to_virt_offset
}
}
#[cfg(not(feature = "libos"))]
mod drivers_ffi {
use crate::{PhysAddr, VirtAddr, KCONFIG, KHANDLER, PAGE_SIZE};
#[no_mangle]
extern "C" fn drivers_dma_alloc(pages: usize) -> PhysAddr {
let paddr = KHANDLER.frame_alloc_contiguous(pages, 0).unwrap();
trace!("alloc DMA: paddr={:#x}, pages={}", paddr, pages);
paddr
}
#[no_mangle]
extern "C" fn drivers_dma_dealloc(paddr: PhysAddr, pages: usize) -> i32 {
for i in 0..pages {
KHANDLER.frame_dealloc(paddr + i * PAGE_SIZE);
}
trace!("dealloc DMA: paddr={:#x}, pages={}", paddr, pages);
0
}
#[no_mangle]
extern "C" fn drivers_phys_to_virt(paddr: PhysAddr) -> VirtAddr {
paddr + KCONFIG.phys_to_virt_offset
}
#[no_mangle]
extern "C" fn drivers_virt_to_phys(vaddr: VirtAddr) -> PhysAddr {
vaddr - KCONFIG.phys_to_virt_offset
}
use crate::hal_fn::timer::timer_now;
#[no_mangle]
extern "C" fn drivers_timer_now_as_micros() -> u64 {
timer_now().as_micros() as _
}
}