Remove redundant WithDmaSpi traits (#1975)

Co-authored-by: Dominic Fischer <git@dominicfischer.me>

esp-hal/CHANGELOG.md

@@ -47,6 +47,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - This package no longer re-exports the `esp_hal_procmacros::main` macro (#1828)
 - The `AesFlavour` trait no longer has the `ENCRYPT_MODE`/`DECRYPT_MODE` associated constants (#1849)
 - Removed `FlashSafeDma` (#1856)
+- Remove redundant WithDmaSpi traits (#1975)
 
 ## [0.19.0] - 2024-07-15
 

esp-hal/src/spi/master.rs

@@ -90,10 +90,7 @@ use crate::{
 
 /// Prelude for the SPI (Master) driver
 pub mod prelude {
-    #[cfg(spi3)]
-    pub use super::dma::WithDmaSpi3 as _esp_hal_spi_master_dma_WithDmaSpi3;
     pub use super::{
-        dma::WithDmaSpi2 as _esp_hal_spi_master_dma_WithDmaSpi2,
         Instance as _esp_hal_spi_master_Instance,
         InstanceDma as _esp_hal_spi_master_InstanceDma,
     };
@@ -867,44 +864,19 @@ pub mod dma {
         Mode,
     };
 
-    pub trait WithDmaSpi2<'d, C, M, DmaMode>
+    impl<'d, M> Spi<'d, crate::peripherals::SPI2, M>
     where
-        C: DmaChannel,
-        C::P: SpiPeripheral,
         M: DuplexMode,
-        DmaMode: Mode,
     {
-        fn with_dma(
+        pub fn with_dma<C, DmaMode>(
             self,
-            channel: Channel<'d, C, DmaMode>,
-        ) -> SpiDma<'d, crate::peripherals::SPI2, C, M, DmaMode>;
-    }
-
-    #[cfg(spi3)]
-    pub trait WithDmaSpi3<'d, C, M, DmaMode>
-    where
-        C: DmaChannel,
-        C::P: SpiPeripheral,
-        M: DuplexMode,
-        DmaMode: Mode,
-    {
-        fn with_dma(
-            self,
-            channel: Channel<'d, C, DmaMode>,
-        ) -> SpiDma<'d, crate::peripherals::SPI3, C, M, DmaMode>;
-    }
-
-    impl<'d, C, M, DmaMode> WithDmaSpi2<'d, C, M, DmaMode> for Spi<'d, crate::peripherals::SPI2, M>
+            mut channel: Channel<'d, C, DmaMode>,
+        ) -> SpiDma<'d, crate::peripherals::SPI2, C, M, DmaMode>
         where
             C: DmaChannel,
             C::P: SpiPeripheral + Spi2Peripheral,
-        M: DuplexMode,
             DmaMode: Mode,
         {
-        fn with_dma(
-            self,
-            mut channel: Channel<'d, C, DmaMode>,
-        ) -> SpiDma<'d, crate::peripherals::SPI2, C, M, DmaMode> {
             channel.tx.init_channel(); // no need to call this for both, TX and RX
 
             SpiDma {
@@ -916,17 +888,19 @@ pub mod dma {
     }
 
     #[cfg(spi3)]
-    impl<'d, C, M, DmaMode> WithDmaSpi3<'d, C, M, DmaMode> for Spi<'d, crate::peripherals::SPI3, M>
+    impl<'d, M> Spi<'d, crate::peripherals::SPI3, M>
+    where
+        M: DuplexMode,
+    {
+        pub fn with_dma<C, DmaMode>(
+            self,
+            mut channel: Channel<'d, C, DmaMode>,
+        ) -> SpiDma<'d, crate::peripherals::SPI3, C, M, DmaMode>
         where
             C: DmaChannel,
             C::P: SpiPeripheral + Spi3Peripheral,
-        M: DuplexMode,
             DmaMode: Mode,
         {
-        fn with_dma(
-            self,
-            mut channel: Channel<'d, C, DmaMode>,
-        ) -> SpiDma<'d, crate::peripherals::SPI3, C, M, DmaMode> {
             channel.tx.init_channel(); // no need to call this for both, TX and RX
 
             SpiDma {

examples/src/bin/embassy_spi.rs

@@ -28,10 +28,7 @@ use esp_hal::{
     gpio::Io,
     peripherals::Peripherals,
     prelude::*,
-    spi::{
-        master::{prelude::*, Spi},
-        SpiMode,
-    },
+    spi::{master::Spi, SpiMode},
     system::SystemControl,
     timer::timg::TimerGroup,
 };

examples/src/bin/qspi_flash.rs

@@ -37,7 +37,7 @@ use esp_hal::{
     peripherals::Peripherals,
     prelude::*,
     spi::{
-        master::{prelude::*, Address, Command, Spi},
+        master::{Address, Command, Spi},
         SpiDataMode,
         SpiMode,
     },

examples/src/bin/spi_loopback_dma.rs

@@ -27,10 +27,7 @@ use esp_hal::{
     gpio::Io,
     peripherals::Peripherals,
     prelude::*,
-    spi::{
-        master::{prelude::*, Spi},
-        SpiMode,
-    },
+    spi::{master::Spi, SpiMode},
     system::SystemControl,
 };
 use esp_println::println;

hil-test/tests/spi_full_duplex_dma.rs

@@ -28,10 +28,7 @@ use esp_hal::{
     gpio::Io,
     peripherals::Peripherals,
     prelude::*,
-    spi::{
-        master::{prelude::*, Spi},
-        SpiMode,
-    },
+    spi::{master::Spi, SpiMode},
     system::SystemControl,
 };
 use hil_test as _;

hil-test/tests/spi_full_duplex_dma_async.rs

@@ -31,10 +31,7 @@ use esp_hal::{
     },
     peripherals::Peripherals,
     prelude::*,
-    spi::{
-        master::{prelude::*, Spi},
-        SpiMode,
-    },
+    spi::{master::Spi, SpiMode},
     system::SystemControl,
 };
 use hil_test as _;

hil-test/tests/spi_half_duplex_read.rs

@@ -26,7 +26,7 @@ mod tests {
         peripherals::Peripherals,
         prelude::_fugit_RateExtU32,
         spi::{
-            master::{prelude::*, Address, Command, Spi},
+            master::{Address, Command, Spi},
             SpiDataMode,
             SpiMode,
         },

hil-test/tests/spi_half_duplex_write.rs

@@ -30,7 +30,7 @@ mod tests {
         peripherals::Peripherals,
         prelude::_fugit_RateExtU32,
         spi::{
-            master::{prelude::*, Address, Command, Spi},
+            master::{Address, Command, Spi},
             SpiDataMode,
             SpiMode,
         },