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Add separate work-around specific flag for DMA errata on NRF52832

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This commit is contained in:
Priit Laes
2023-09-22 17:30:09 +03:00
committed by Nils Fitinghoff
parent 2b7b7a917d
commit 6f83acc010
2 changed files with 14 additions and 12 deletions
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21
embassy-nrf/src/spim.rs
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@ -68,7 +68,7 @@ impl<T: Instance> interrupt::typelevel::Handler<T::Interrupt> for InterruptHandl
let r = T::regs();
let s = T::state();
#[cfg(feature = "nrf52832")]
#[cfg(feature = "_nrf52832_anomaly_109")]
if r.events_started.read().bits() != 0 {
s.waker.wake();
r.intenclr.write(|w| w.started().clear());
@ -206,8 +206,7 @@ impl<'d, T: Instance> Spim<'d, T> {
r.rxd.ptr.write(|w| unsafe { w.ptr().bits(ptr as _) });
r.rxd.maxcnt.write(|w| unsafe { w.maxcnt().bits(rx_len as _) });
// ANOMALY 109 workaround
#[cfg(feature = "nrf52832")]
#[cfg(feature = "_nrf52832_anomaly_109")]
{
let s = T::state();
@ -238,7 +237,7 @@ impl<'d, T: Instance> Spim<'d, T> {
fn blocking_inner_from_ram(&mut self, rx: *mut [u8], tx: *const [u8]) -> Result<(), Error> {
self.prepare(rx, tx)?;
#[cfg(feature = "nrf52832")]
#[cfg(feature = "_nrf52832_anomaly_109")]
while let Poll::Pending = self.nrf52832_dma_workaround_status() {}
// Wait for 'end' event.
@ -265,7 +264,7 @@ impl<'d, T: Instance> Spim<'d, T> {
async fn async_inner_from_ram(&mut self, rx: *mut [u8], tx: *const [u8]) -> Result<(), Error> {
self.prepare(rx, tx)?;
#[cfg(feature = "nrf52832")]
#[cfg(feature = "_nrf52832_anomaly_109")]
poll_fn(|cx| {
let s = T::state();
@ -369,7 +368,7 @@ impl<'d, T: Instance> Spim<'d, T> {
self.async_inner_from_ram(&mut [], data).await
}
#[cfg(feature = "nrf52832")]
#[cfg(feature = "_nrf52832_anomaly_109")]
fn nrf52832_dma_workaround_status(&mut self) -> Poll<()> {
let r = T::regs();
if r.events_started.read().bits() != 0 {
@ -418,7 +417,7 @@ impl<'d, T: Instance> Drop for Spim<'d, T> {
}
pub(crate) mod sealed {
#[cfg(feature = "nrf52832")]
#[cfg(feature = "_nrf52832_anomaly_109")]
use core::sync::atomic::AtomicU8;
use embassy_sync::waitqueue::AtomicWaker;
@ -427,9 +426,9 @@ pub(crate) mod sealed {
pub struct State {
pub waker: AtomicWaker,
#[cfg(feature = "nrf52832")]
#[cfg(feature = "_nrf52832_anomaly_109")]
pub rx: AtomicU8,
#[cfg(feature = "nrf52832")]
#[cfg(feature = "_nrf52832_anomaly_109")]
pub tx: AtomicU8,
}
@ -437,9 +436,9 @@ pub(crate) mod sealed {
pub const fn new() -> Self {
Self {
waker: AtomicWaker::new(),
#[cfg(feature = "nrf52832")]
#[cfg(feature = "_nrf52832_anomaly_109")]
rx: AtomicU8::new(0),
#[cfg(feature = "nrf52832")]
#[cfg(feature = "_nrf52832_anomaly_109")]
tx: AtomicU8::new(0),
}
}