embassy/embassy-stm32/src/dma/mod.rs

#![macro_use]

#[cfg_attr(dma_v1, path = "v1.rs")]
#[cfg_attr(dma_v2, path = "v2.rs")]
mod _version;

#[allow(unused)]
pub use _version::*;

use core::future::Future;

pub trait WriteDma<T> {
    type WriteDmaFuture<'a>: Future<Output = ()> + 'a
    where
        Self: 'a;

    fn transfer<'a>(&'a mut self, buf: &'a [u8], dst: *mut u8) -> Self::WriteDmaFuture<'a>
    where
        T: 'a;
}

pub trait ReadDma<T> {
    type ReadDmaFuture<'a>: Future<Output = ()> + 'a
    where
        Self: 'a;

    fn transfer<'a>(&'a mut self, src: *const u8, buf: &'a mut [u8]) -> Self::ReadDmaFuture<'a>
    where
        T: 'a;
}