Add into_async for ParlIO

esp-hal/CHANGELOG.md

@@ -24,7 +24,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - I2S Parallel output driver for ESP32. (#2348, #2436)
 - Add an option to configure `WDT` action (#2330)
 - `DmaDescriptor` is now `Send` (#2456)
-- `into_async` and `into_blocking` functions for most peripherals (#2430)
+- `into_async` and `into_blocking` functions for most peripherals (#2430, #2461)
 - API mode type parameter (currently always `Blocking`) to `master::Spi` and `slave::Spi` (#2430)
 - `gpio::{GpioPin, AnyPin, Flex, Output, OutputOpenDrain}::split()` to obtain peripheral interconnect signals. (#2418)
 - `gpio::Input::{split(), into_peripheral_output()}` when used with output pins. (#2418)
@@ -43,7 +43,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Circular DMA transfers now correctly error, `available` returns `Result<usize,DmaError>` now (#2409)
 - Interrupt listen/unlisten/clear functions now accept any type that converts into `EnumSet` (i.e. single interrupt flags). (#2442)
 - SPI interrupt listening is now only available in Blocking mode. The `set_interrupt_handler` is available via `InterruptConfigurable` (#2442)
-- Allow users to create DMA `Preparation`s (#2455) 
+- Allow users to create DMA `Preparation`s (#2455)
 - The `rmt::asynch::RxChannelAsync` and `rmt::asynch::TxChannelAsync` traits have been moved to `rmt` (#2430)
 - Calling `AnyPin::output_signals` on an input-only pin (ESP32 GPIO 34-39) will now result in a panic. (#2418)
 

esp-hal/src/parl_io.rs

@@ -54,6 +54,7 @@ use crate::{
     peripheral::{self, Peripheral},
     peripherals::{self, Interrupt, PARL_IO},
     system::PeripheralClockControl,
+    Async,
     Blocking,
     InterruptConfigurable,
     Mode,
@@ -1017,21 +1018,21 @@ where
     pub rx: RxCreatorFullDuplex<'d, DM>,
 }
 
-impl<'d, DM> ParlIoFullDuplex<'d, DM>
-where
-    DM: Mode,
-{
+impl<'d> ParlIoFullDuplex<'d, Blocking> {
     /// Create a new instance of [ParlIoFullDuplex]
-    pub fn new<CH>(
+    pub fn new<CH, DM>(
         _parl_io: impl Peripheral<P = peripherals::PARL_IO> + 'd,
         dma_channel: Channel<'d, CH, DM>,
         tx_descriptors: &'static mut [DmaDescriptor],
         rx_descriptors: &'static mut [DmaDescriptor],
         frequency: HertzU32,
     ) -> Result<Self, Error>
     where
+        DM: Mode,
         CH: DmaChannelConvert<<PARL_IO as DmaEligible>::Dma>,
+        Channel<'d, CH, Blocking>: From<Channel<'d, CH, DM>>,
     {
+        let dma_channel = Channel::<'d, CH, Blocking>::from(dma_channel);
         internal_init(frequency)?;
 
         Ok(Self {
@@ -1047,9 +1048,29 @@ where
             },
         })
     }
-}
 
-impl ParlIoFullDuplex<'_, Blocking> {
+    /// Convert to an async version.
+    pub fn into_async(self) -> ParlIoFullDuplex<'d, Async> {
+        let channel = Channel {
+            tx: self.tx.tx_channel,
+            rx: self.rx.rx_channel,
+            phantom: PhantomData::<Blocking>,
+        };
+        let channel = channel.into_async();
+        ParlIoFullDuplex {
+            tx: TxCreatorFullDuplex {
+                tx_channel: channel.tx,
+                descriptors: self.tx.descriptors,
+                phantom: PhantomData,
+            },
+            rx: RxCreatorFullDuplex {
+                rx_channel: channel.rx,
+                descriptors: self.rx.descriptors,
+                phantom: PhantomData,
+            },
+        }
+    }
+
     /// Sets the interrupt handler, enables it with
     /// [crate::interrupt::Priority::min()]
     ///
@@ -1087,6 +1108,30 @@ impl InterruptConfigurable for ParlIoFullDuplex<'_, Blocking> {
     }
 }
 
+impl<'d> ParlIoFullDuplex<'d, Async> {
+    /// Convert to a blocking version.
+    pub fn into_blocking(self) -> ParlIoFullDuplex<'d, Blocking> {
+        let channel = Channel {
+            tx: self.tx.tx_channel,
+            rx: self.rx.rx_channel,
+            phantom: PhantomData::<Async>,
+        };
+        let channel = channel.into_blocking();
+        ParlIoFullDuplex {
+            tx: TxCreatorFullDuplex {
+                tx_channel: channel.tx,
+                descriptors: self.tx.descriptors,
+                phantom: PhantomData,
+            },
+            rx: RxCreatorFullDuplex {
+                rx_channel: channel.rx,
+                descriptors: self.rx.descriptors,
+                phantom: PhantomData,
+            },
+        }
+    }
+}
+
 /// Parallel IO in half duplex / TX only mode
 pub struct ParlIoTxOnly<'d, DM>
 where