Crate ruspiro_interrupt

Raspberry Pi Interrupt handler

This crates provides functions and macros (custom attribute) to conviniently implement interrupt handler for Raspberry Pi 3. The possible interrupts a handler can be implemented for are available as enum irqtypes::Interrupt

Usage

extern crate ruspiro_interrupt; // <- this kind of usage is VERY IMPORTANT to ensure linking works as expected!
use ruspiro_interrupt::*;
 
#[IrqHandler(ArmTimer)]
fn timer_handler() {
    // TODO: acknowledge the irq
 
    // implement stuff that shall be executed if the interrupt is raised...
    // be careful when this code uses spinlocks as this might lead to dead-locks if the 
    // executing code interrupted currently helds a lock the code inside this handler tries to aquire the same one
    println!("timer interrupt raised");
}
 
fn demo() {
    // as we have an interrupt handler defined we need to enable interrupt handling globally as well
    // as the specific interrupt we have a handler implemented for
    IRQ_MANAGER.take_for(|irq_mgr| {
        irq_mgr.enable();
        irq_mgr.activate(Interrupt.ArmTimer);
    });
}

Re-exports

pub use irqtypes::*;

Modules

irqtypes

IRQ Types

Structs

InterruptManager

The interrupt manager representation

Statics

IRQ_MANAGER

The singleton accessor to the interrupt manager