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stm32: add stm32u5 GPDMA, SPIv4 support, add HIL tests.

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This commit is contained in:
Dario Nieuwenhuis
2022-04-26 23:57:26 +02:00
parent a39d796c3d
commit 009bb8e4e1
16 changed files with 447 additions and 59 deletions
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29
embassy-stm32/src/dma/mod.rs
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@ -4,6 +4,8 @@ pub(crate) mod bdma;
pub(crate) mod dma;
#[cfg(dmamux)]
mod dmamux;
#[cfg(gpdma)]
mod gpdma;
#[cfg(dmamux)]
pub use dmamux::*;
@ -24,9 +26,9 @@ pub mod low_level {
pub(crate) use transfers::*;
#[cfg(any(bdma_v2, dma_v2, dmamux))]
#[cfg(any(bdma_v2, dma_v2, dmamux, gpdma))]
pub type Request = u8;
#[cfg(not(any(bdma_v2, dma_v2, dmamux)))]
#[cfg(not(any(bdma_v2, dma_v2, dmamux, gpdma)))]
pub type Request = ();
pub(crate) mod sealed {
@ -118,11 +120,24 @@ pub(crate) mod sealed {
}
}
#[derive(Debug, Copy, Clone, PartialEq, Eq)]
#[cfg_attr(feature = "defmt", derive(defmt::Format))]
pub enum WordSize {
OneByte,
TwoBytes,
FourBytes,
}
impl WordSize {
pub fn bytes(&self) -> usize {
match self {
Self::OneByte => 1,
Self::TwoBytes => 2,
Self::FourBytes => 4,
}
}
}
pub trait Word: sealed::Word {
fn bits() -> WordSize;
}
@ -148,7 +163,8 @@ impl Word for u32 {
}
}
#[derive(Debug, PartialEq)]
#[derive(Debug, Copy, Clone, PartialEq, Eq)]
#[cfg_attr(feature = "defmt", derive(defmt::Format))]
pub enum Burst {
/// Single transfer
Single,
@ -160,7 +176,8 @@ pub enum Burst {
Incr16,
}
#[derive(Debug, PartialEq)]
#[derive(Debug, Copy, Clone, PartialEq, Eq)]
#[cfg_attr(feature = "defmt", derive(defmt::Format))]
pub enum FlowControl {
/// Flow control by DMA
Dma,
@ -168,6 +185,8 @@ pub enum FlowControl {
Peripheral,
}
#[derive(Debug, Copy, Clone, PartialEq, Eq)]
#[cfg_attr(feature = "defmt", derive(defmt::Format))]
pub struct TransferOptions {
/// Peripheral burst transfer configuration
pub pburst: Burst,
@ -299,6 +318,8 @@ pub(crate) unsafe fn init() {
dma::init();
#[cfg(dmamux)]
dmamux::init();
#[cfg(gpdma)]
gpdma::init();
}
// TODO: replace transmutes with core::ptr::metadata once it's stable