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transfer_in_place

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This commit is contained in:
Henrik Alsér 2022-08-30 06:50:58 +02:00 committed by Henrik Alsér
parent c8ecc55710
commit 6d347af9fa
2 changed files with 9 additions and 8 deletions
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15
embassy-rp/src/spi.rs
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@ -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)
}
}
}

2
examples/rp/src/bin/spi_display.rs
View File

@ -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;