driver_interface/
intc.rs

1use core::{error::Error, fmt::Debug};
2
3use crate::{DriverGeneric, custom_type};
4use alloc::boxed::Box;
5
6custom_type!(IrqId, usize, "{:#x}");
7custom_type!(CpuId, usize, "{:#x}");
8
9pub type Hardware = Box<dyn Interface>;
10pub type OnProbeFdt = fn(node: crate::fdt::Node<'_>) -> Result<FdtProbeInfo, Box<dyn Error>>;
11pub type HardwareCPU = Box<dyn InterfaceCPU>;
12
13/// Fdt 解析 `interrupts` 函数，一次解析一个`cell`
14pub type FdtParseConfigFn =
15    fn(prop_interrupts_one_cell: &[u32]) -> Result<IrqConfig, Box<dyn Error>>;
16
17pub struct FdtProbeInfo {
18    pub hardware: Hardware,
19    pub fdt_parse_config_fn: FdtParseConfigFn,
20}
21
22pub trait InterfaceCPU: Send + Sync {
23    fn get_and_acknowledge_interrupt(&self) -> Option<IrqId>;
24    fn end_interrupt(&self, irq: IrqId);
25}
26
27pub trait Interface: DriverGeneric {
28    fn current_cpu_setup(&self) -> HardwareCPU;
29    fn irq_enable(&mut self, irq: IrqId);
30    fn irq_disable(&mut self, irq: IrqId);
31    fn set_priority(&mut self, irq: IrqId, priority: usize);
32    fn set_trigger(&mut self, irq: IrqId, trigger: Trigger);
33    fn set_target_cpu(&mut self, irq: IrqId, cpu: CpuId);
34}
35
36/// The trigger configuration for an interrupt.
37#[derive(Copy, Clone, Debug, Eq, PartialEq)]
38pub enum Trigger {
39    EdgeBoth,
40    EdgeRising,
41    EdgeFailling,
42    LevelHigh,
43    LevelLow,
44}
45
46#[derive(Debug, Clone)]
47pub struct IrqConfig {
48    pub irq: IrqId,
49    pub trigger: Trigger,
50}
driver_interface/intc.rs

driver_interface/
intc.rs
