From 6d347af9fae3a9c594e13900796ec57537c402e6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Henrik=20Alse=CC=81r?= <henrik.alser@me.com>
Date: Tue, 30 Aug 2022 06:50:58 +0200
Subject: [PATCH] transfer_in_place

---
 embassy-rp/src/spi.rs              | 15 ++++++++-------
 examples/rp/src/bin/spi_display.rs |  2 +-
 2 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/embassy-rp/src/spi.rs b/embassy-rp/src/spi.rs
index be639504f..11aad6305 100644
--- a/embassy-rp/src/spi.rs
+++ b/embassy-rp/src/spi.rs
@@ -334,6 +334,12 @@ impl<'d, T: Instance> Spi<'d, T, Async> {
         join(tx_transfer, rx_transfer).await;
         Ok(())
     }
+
+    pub async fn transfer_in_place(&mut self, words: &mut [u8]) -> Result<(), Error> {
+        let (ptr, len) = crate::dma::slice_ptr_parts(words);
+        let tx_buffer = unsafe { core::slice::from_raw_parts(ptr as *const _, len) };
+        self.transfer(words, tx_buffer).await
+    }
 }
 
 mod sealed {
@@ -521,13 +527,8 @@ cfg_if::cfg_if! {
 
             type TransferInPlaceFuture<'a> = impl Future<Output = Result<(), Self::Error>> + 'a where Self: 'a;
 
-            fn transfer_in_place<'a>(
-                &'a mut self,
-                words: &'a mut [u8],
-            ) -> Self::TransferInPlaceFuture<'a> {
-                let (ptr, len) = crate::dma::slice_ptr_parts(words);
-                let tx_buffer = unsafe { core::slice::from_raw_parts(ptr as *const _, len) };
-                self.transfer(words, tx_buffer)
+            fn transfer_in_place<'a>(&'a mut self, words: &'a mut [u8]) -> Self::TransferInPlaceFuture<'a> {
+                self.transfer_in_place(words)
             }
         }
     }
diff --git a/examples/rp/src/bin/spi_display.rs b/examples/rp/src/bin/spi_display.rs
index d0fbd6847..23cd4355e 100644
--- a/examples/rp/src/bin/spi_display.rs
+++ b/examples/rp/src/bin/spi_display.rs
@@ -8,7 +8,7 @@ use defmt::*;
 use embassy_executor::Spawner;
 use embassy_rp::gpio::{Level, Output};
 use embassy_rp::spi;
-use embassy_rp::spi::{Spi, Blocking};
+use embassy_rp::spi::{Blocking, Spi};
 use embassy_time::Delay;
 use embedded_graphics::image::{Image, ImageRawLE};
 use embedded_graphics::mono_font::ascii::FONT_10X20;