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Checkpoint with lifetime issues.

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This commit is contained in:
Bob McWhirter
2021-06-25 14:00:11 -04:00
parent 1732551db4
commit b88fc2847a
10 changed files with 328 additions and 174 deletions
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65
embassy-stm32/src/dma/mod.rs
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@ -1,67 +1,22 @@
#![macro_use]
#[cfg_attr(dma_v1, path = "v1.rs")]
//#[cfg_attr(dma_v1, path = "v1.rs")]
#[cfg_attr(dma_v2, path = "v2.rs")]
mod _version;
#[allow(unused)]
pub use _version::*;
use crate::pac;
use crate::peripherals;
use core::future::Future;
pub(crate) mod sealed {
use super::*;
pub trait WriteDma<T> {
type WriteDmaFuture<'a>: Future<Output = ()> + 'a
where
Self: 'a;
pub trait Channel {
fn num(&self) -> u8;
fn dma_num(&self) -> u8 {
self.num() / 8
}
fn ch_num(&self) -> u8 {
self.num() % 8
}
fn regs(&self) -> pac::dma::Dma {
pac::DMA(self.num() as _)
}
}
fn transfer<'a>(&'a mut self, buf: &'a [u8], dst: *mut u8) -> Self::WriteDmaFuture<'a>
where
T: 'a;
}
pub trait Channel: sealed::Channel + Sized {}
macro_rules! impl_dma_channel {
($type:ident, $dma_num:expr, $ch_num:expr) => {
impl Channel for peripherals::$type {}
impl sealed::Channel for peripherals::$type {
#[inline]
fn num(&self) -> u8 {
$dma_num * 8 + $ch_num
}
}
};
}
crate::pac::peripherals!(
(dma,DMA1) => {
impl_dma_channel!(DMA1_CH0, 0, 0);
impl_dma_channel!(DMA1_CH1, 0, 1);
impl_dma_channel!(DMA1_CH2, 0, 2);
impl_dma_channel!(DMA1_CH3, 0, 3);
impl_dma_channel!(DMA1_CH4, 0, 4);
impl_dma_channel!(DMA1_CH5, 0, 5);
impl_dma_channel!(DMA1_CH6, 0, 6);
impl_dma_channel!(DMA1_CH7, 0, 7);
};
(dma,DMA2) => {
impl_dma_channel!(DMA2_CH0, 1, 0);
impl_dma_channel!(DMA2_CH1, 1, 1);
impl_dma_channel!(DMA2_CH2, 1, 2);
impl_dma_channel!(DMA2_CH3, 1, 3);
impl_dma_channel!(DMA2_CH4, 1, 4);
impl_dma_channel!(DMA2_CH5, 1, 5);
impl_dma_channel!(DMA2_CH6, 1, 6);
impl_dma_channel!(DMA2_CH7, 1, 7);
};
);
pub trait ReadDma {}