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cortex-m/executor: don't use the owned interrupts system.

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Preparation for #1224.
This commit is contained in:
Dario Nieuwenhuis
2023-02-27 01:08:16 +01:00
parent 711ce10145
commit 4dfa32b1e0
6 changed files with 152 additions and 85 deletions
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32
examples/stm32f0/src/bin/priority.rs → examples/stm32f0/src/bin/multiprio.rs
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@ -57,11 +57,14 @@
#![no_main]
#![feature(type_alias_impl_trait)]
use core::mem;
use cortex_m::peripheral::NVIC;
use cortex_m_rt::entry;
use defmt::*;
use embassy_stm32::executor::{Executor, InterruptExecutor};
use embassy_stm32::interrupt;
use embassy_stm32::interrupt::InterruptExt;
use embassy_stm32::pac::Interrupt;
use embassy_time::{Duration, Instant, Timer};
use static_cell::StaticCell;
use {defmt_rtt as _, panic_probe as _};
@ -108,27 +111,34 @@ async fn run_low() {
}
}
static EXECUTOR_HIGH: StaticCell<InterruptExecutor<interrupt::USART1>> = StaticCell::new();
static EXECUTOR_MED: StaticCell<InterruptExecutor<interrupt::USART2>> = StaticCell::new();
static EXECUTOR_HIGH: InterruptExecutor = InterruptExecutor::new();
static EXECUTOR_MED: InterruptExecutor = InterruptExecutor::new();
static EXECUTOR_LOW: StaticCell<Executor> = StaticCell::new();
#[interrupt]
unsafe fn USART1() {
EXECUTOR_HIGH.on_interrupt()
}
#[interrupt]
unsafe fn USART2() {
EXECUTOR_MED.on_interrupt()
}
#[entry]
fn main() -> ! {
// Initialize and create handle for devicer peripherals
let _p = embassy_stm32::init(Default::default());
let mut nvic: NVIC = unsafe { mem::transmute(()) };
// High-priority executor: USART1, priority level 6
let irq = interrupt::take!(USART1);
irq.set_priority(interrupt::Priority::P6);
let executor = EXECUTOR_HIGH.init(InterruptExecutor::new(irq));
let spawner = executor.start();
unsafe { nvic.set_priority(Interrupt::USART1, 6 << 4) };
let spawner = EXECUTOR_HIGH.start(Interrupt::USART1);
unwrap!(spawner.spawn(run_high()));
// Medium-priority executor: USART2, priority level 7
let irq = interrupt::take!(USART2);
irq.set_priority(interrupt::Priority::P7);
let executor = EXECUTOR_MED.init(InterruptExecutor::new(irq));
let spawner = executor.start();
unsafe { nvic.set_priority(Interrupt::USART2, 7 << 4) };
let spawner = EXECUTOR_MED.start(Interrupt::USART2);
unwrap!(spawner.spawn(run_med()));
// Low priority executor: runs in thread mode, using WFE/SEV