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Address code review comments

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This commit is contained in:
Mathias
2022-08-23 12:28:17 +02:00
parent 295af2a057
commit f6c2e26372
3 changed files with 47 additions and 38 deletions
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50
embassy-rp/src/dma.rs
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@ -15,27 +15,47 @@ use crate::{interrupt, pac, peripherals};
unsafe fn DMA_IRQ_0() {
let ints0 = pac::DMA.ints0().read().ints0();
critical_section::with(|_| {
for channel in 0..CHANNEL_COUNT {
if ints0 & (1 << channel) == (1 << channel) {
CHANNEL_WAKERS[channel].wake();
}
for channel in 0..CHANNEL_COUNT {
if ints0 & (1 << channel) == (1 << channel) {
CHANNEL_WAKERS[channel].wake();
}
pac::DMA.ints0().write(|w| w.set_ints0(ints0));
});
}
pac::DMA.ints0().write(|w| w.set_ints0(ints0));
}
pub fn read<'a, C: Channel, W: Word>(ch: impl Peripheral<P = C> + 'a, from: *const W, to: &mut [W]) -> Transfer<'a, C> {
pub(crate) unsafe fn init() {
let irq = interrupt::DMA_IRQ_0::steal();
irq.disable();
irq.set_priority(interrupt::Priority::P6);
pac::DMA.inte0().write(|w| w.set_inte0(0xFFFF));
irq.enable();
}
pub unsafe fn read<'a, C: Channel, W: Word>(
ch: impl Peripheral<P = C> + 'a,
from: *const W,
to: &mut [W],
) -> Transfer<'a, C> {
let (ptr, len) = crate::dma::slice_ptr_parts_mut(to);
copy_inner(ch, from as *const u32, ptr as *mut u32, len, W::size(), false, true)
}
pub fn write<'a, C: Channel, W: Word>(ch: impl Peripheral<P = C> + 'a, from: &[W], to: *mut W) -> Transfer<'a, C> {
pub unsafe fn write<'a, C: Channel, W: Word>(
ch: impl Peripheral<P = C> + 'a,
from: &[W],
to: *mut W,
) -> Transfer<'a, C> {
let (from_ptr, len) = crate::dma::slice_ptr_parts(from);
copy_inner(ch, from_ptr as *const u32, to as *mut u32, len, W::size(), true, false)
}
pub fn copy<'a, C: Channel, W: Word>(ch: impl Peripheral<P = C> + 'a, from: &[W], to: &mut [W]) -> Transfer<'a, C> {
pub unsafe fn copy<'a, C: Channel, W: Word>(
ch: impl Peripheral<P = C> + 'a,
from: &[W],
to: &mut [W],
) -> Transfer<'a, C> {
let (from_ptr, from_len) = crate::dma::slice_ptr_parts(from);
let (to_ptr, to_len) = crate::dma::slice_ptr_parts_mut(to);
assert_eq!(from_len, to_len);
@ -91,16 +111,6 @@ impl<'a, C: Channel> Transfer<'a, C> {
pub(crate) fn new(channel: impl Peripheral<P = C> + 'a) -> Self {
into_ref!(channel);
unsafe {
let irq = interrupt::DMA_IRQ_0::steal();
irq.disable();
irq.set_priority(interrupt::Priority::P6);
pac::DMA.inte0().write(|w| w.set_inte0(1 << channel.number()));
irq.enable();
}
Self { channel }
}
}