Erase channel in Camera and Aes

esp-hal/CHANGELOG.md

@@ -47,6 +47,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - I8080 driver now decides bus width at transfer time rather than construction time. (#2171)
 - Replaced `AnyPin` with `InputSignal` and `OutputSignal` and renamed `ErasedPin` to `AnyPin` (#2128)
 - Replaced the `ErasedTimer` enum with the `AnyTimer` struct. (#2144)
+- `Camera` and `AesDma` now support erasing the DMA channel type (#2258)
 - Changed the parameters of `Spi::with_pins` to no longer be optional (#2133)
 - Renamed `DummyPin` to `NoPin` and removed all internal logic from it. (#2133)
 - The `NO_PIN` constant has been removed. (#2133)

esp-hal/src/aes/mod.rs

@@ -251,6 +251,11 @@ pub mod dma {
         },
     };
 
+    #[cfg(gdma)]
+    type DefaultChannel = crate::dma::AnyDmaChannel;
+    #[cfg(pdma)]
+    type DefaultChannel = (); // Replace with PDMA channel once support is added.
+
     const ALIGN_SIZE: usize = core::mem::size_of::<u32>();
 
     /// Specifies the block cipher modes available for AES operations.
@@ -270,7 +275,7 @@ pub mod dma {
     }
 
     /// A DMA capable AES instance.
-    pub struct AesDma<'d, C>
+    pub struct AesDma<'d, C = DefaultChannel>
     where
         C: DmaChannel,
         C::P: AesPeripheral,

esp-hal/src/lcd_cam/cam.rs

@@ -69,6 +69,7 @@ use crate::{
     clock::Clocks,
     dma::{
         dma_private::{DmaSupport, DmaSupportRx},
+        AnyDmaChannel,
         ChannelRx,
         DescriptorChain,
         DmaChannel,
@@ -126,7 +127,7 @@ pub struct Cam<'d> {
 }
 
 /// Represents the camera interface with DMA support.
-pub struct Camera<'d, CH: DmaChannel> {
+pub struct Camera<'d, CH: DmaChannel = AnyDmaChannel> {
     lcd_cam: PeripheralRef<'d, LCD_CAM>,
     rx_channel: ChannelRx<'d, CH>,
     rx_chain: DescriptorChain,