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stm32: Add basic support for DMA priority settings

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This commit is contained in:
Matous Hybl
2022-11-23 10:11:19 +01:00
parent cea29d7de3
commit 4cc0463123
4 changed files with 31 additions and 8 deletions
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7
embassy-stm32/src/dma/bdma.rs
View File

@ -3,6 +3,7 @@
use core::sync::atomic::{fence, Ordering};
use core::task::Waker;
use embassy_cortex_m::interrupt::Priority;
use embassy_sync::waitqueue::AtomicWaker;
use super::{TransferOptions, Word, WordSize};
@ -38,10 +39,12 @@ impl State {
static STATE: State = State::new();
/// safety: must be called only once
pub(crate) unsafe fn init() {
pub(crate) unsafe fn init(irq_priority: Priority) {
foreach_interrupt! {
($peri:ident, bdma, $block:ident, $signal_name:ident, $irq:ident) => {
crate::interrupt::$irq::steal().enable();
let irq = crate::interrupt::$irq::steal();
irq.set_priority(irq_priority);
irq.enable();
};
}
crate::_generated::init_bdma();

7
embassy-stm32/src/dma/dma.rs
View File

@ -1,6 +1,7 @@
use core::sync::atomic::{fence, Ordering};
use core::task::Waker;
use embassy_cortex_m::interrupt::Priority;
use embassy_sync::waitqueue::AtomicWaker;
use super::{Burst, FlowControl, Request, TransferOptions, Word, WordSize};
@ -67,10 +68,12 @@ impl State {
static STATE: State = State::new();
/// safety: must be called only once
pub(crate) unsafe fn init() {
pub(crate) unsafe fn init(irq_priority: Priority) {
foreach_interrupt! {
($peri:ident, dma, $block:ident, $signal_name:ident, $irq:ident) => {
interrupt::$irq::steal().enable();
let irq = interrupt::$irq::steal();
irq.set_priority(irq_priority);
irq.enable();
};
}
crate::_generated::init_dma();

8
embassy-stm32/src/dma/mod.rs
View File

@ -12,6 +12,8 @@ use core::mem;
use core::pin::Pin;
use core::task::{Context, Poll, Waker};
#[cfg(any(dma, bdma))]
use embassy_cortex_m::interrupt::Priority;
use embassy_hal_common::{impl_peripheral, into_ref};
#[cfg(dmamux)]
@ -294,11 +296,11 @@ pub struct NoDma;
impl_peripheral!(NoDma);
// safety: must be called only once at startup
pub(crate) unsafe fn init() {
pub(crate) unsafe fn init(#[cfg(bdma)] bdma_priority: Priority, #[cfg(dma)] dma_priority: Priority) {
#[cfg(bdma)]
bdma::init();
bdma::init(bdma_priority);
#[cfg(dma)]
dma::init();
dma::init(dma_priority);
#[cfg(dmamux)]
dmamux::init();
#[cfg(gpdma)]