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Make interrupt module more standard.

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- Move typelevel interrupts to a special-purpose mod: `embassy_xx::interrupt::typelevel`.
- Reexport the PAC interrupt enum in `embassy_xx::interrupt`.

This has a few advantages:
- The `embassy_xx::interrupt` module is now more "standard".
  - It works with `cortex-m` functions for manipulating interrupts, for example.
  - It works with RTIC.
- the interrupt enum allows holding value that can be "any interrupt at runtime", this can't be done with typelevel irqs.
- When "const-generics on enums" is stable, we can remove the typelevel interrupts without disruptive changes to `embassy_xx::interrupt`.
This commit is contained in:
Dario Nieuwenhuis
2023-06-08 16:08:40 +02:00
parent 87ad66f2b4
commit 921780e6bf
72 changed files with 845 additions and 930 deletions
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14
embassy-rp/src/pio.rs
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@ -5,7 +5,6 @@ use core::sync::atomic::{compiler_fence, Ordering};
use core::task::{Context, Poll};
use atomic_polyfill::{AtomicU32, AtomicU8};
use embassy_cortex_m::interrupt::Interrupt;
use embassy_hal_common::{into_ref, Peripheral, PeripheralRef};
use embassy_sync::waitqueue::AtomicWaker;
use fixed::types::extra::U8;
@ -17,6 +16,7 @@ use pio::{SideSet, Wrap};
use crate::dma::{Channel, Transfer, Word};
use crate::gpio::sealed::Pin as SealedPin;
use crate::gpio::{self, AnyPin, Drive, Level, Pull, SlewRate};
use crate::interrupt::InterruptExt;
use crate::pac::dma::vals::TreqSel;
use crate::relocate::RelocatedProgram;
use crate::{interrupt, pac, peripherals, pio_instr_util, RegExt};
@ -110,15 +110,15 @@ unsafe fn PIO1_IRQ_0() {
}
pub(crate) unsafe fn init() {
interrupt::PIO0_IRQ_0::disable();
interrupt::PIO0_IRQ_0::set_priority(interrupt::Priority::P3);
interrupt::PIO0_IRQ_0.disable();
interrupt::PIO0_IRQ_0.set_priority(interrupt::Priority::P3);
pac::PIO0.irqs(0).inte().write(|m| m.0 = 0);
interrupt::PIO0_IRQ_0::enable();
interrupt::PIO0_IRQ_0.enable();
interrupt::PIO1_IRQ_0::disable();
interrupt::PIO1_IRQ_0::set_priority(interrupt::Priority::P3);
interrupt::PIO1_IRQ_0.disable();
interrupt::PIO1_IRQ_0.set_priority(interrupt::Priority::P3);
pac::PIO1.irqs(0).inte().write(|m| m.0 = 0);
interrupt::PIO1_IRQ_0::enable();
interrupt::PIO1_IRQ_0.enable();
}
/// Future that waits for TX-FIFO to become writable