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impl embedded-hal-async

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This commit is contained in:
Henrik Alsér 2022-08-30 01:18:28 +02:00 committed by Henrik Alsér
parent 07c64d902e
commit 44150c4830
2 changed files with 56 additions and 4 deletions
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54
embassy-rp/src/spi.rs
View file

@ -479,6 +479,60 @@ mod eh1 {
}
}
cfg_if::cfg_if! {
if #[cfg(all(feature = "unstable-traits", feature = "nightly"))] {
use core::future::Future;
impl<'d, T: Instance> embedded_hal_async::spi::SpiBusFlush for Spi<'d, T, Async> {
type FlushFuture<'a> = impl Future<Output = Result<(), Self::Error>> + 'a where Self: 'a;
fn flush<'a>(&'a mut self) -> Self::FlushFuture<'a> {
async { Ok(()) }
}
}
impl<'d, T: Instance> embedded_hal_async::spi::SpiBusWrite<u8>
for Spi<'d, T, Async>
{
type WriteFuture<'a> = impl Future<Output = Result<(), Self::Error>> + 'a where Self: 'a;
fn write<'a>(&'a mut self, data: &'a [u8]) -> Self::WriteFuture<'a> {
self.write(data)
}
}
impl<'d, T: Instance> embedded_hal_async::spi::SpiBusRead<u8>
for Spi<'d, T, Async>
{
type ReadFuture<'a> = impl Future<Output = Result<(), Self::Error>> + 'a where Self: 'a;
fn read<'a>(&'a mut self, data: &'a mut [u8]) -> Self::ReadFuture<'a> {
self.read(data)
}
}
impl<'d, T: Instance> embedded_hal_async::spi::SpiBus<u8>
for Spi<'d, T, Async>
{
type TransferFuture<'a> = impl Future<Output = Result<(), Self::Error>> + 'a where Self: 'a;
fn transfer<'a>(&'a mut self, rx: &'a mut [u8], tx: &'a [u8]) -> Self::TransferFuture<'a> {
self.transfer(rx, tx)
}
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)
}
}
}
}
impl<'d, T: Instance, M: Mode> SetConfig for Spi<'d, T, M> {
type Config = Config;
fn set_config(&mut self, config: &Self::Config) {

6
examples/rp/src/bin/spi_async.rs
View file

@ -4,10 +4,8 @@
use defmt::*;
use embassy_executor::Spawner;
use embassy_rp::spi::{Async, Spi};
use embassy_rp::{gpio, spi};
use embassy_rp::spi::{Async, Config, Spi};
use embassy_time::{Duration, Timer};
use gpio::{Level, Output};
use {defmt_rtt as _, panic_probe as _};
#[embassy_executor::main]
@ -19,7 +17,7 @@ async fn main(_spawner: Spawner) {
let mosi = p.PIN_11;
let clk = p.PIN_10;
let mut spi: Spi<'_, _, Async> = Spi::new(p.SPI1, p.DMA_CH0, p.DMA_CH1, clk, mosi, miso, spi::Config::default());
let mut spi: Spi<'_, _, Async> = Spi::new(p.SPI1, p.DMA_CH0, p.DMA_CH1, clk, mosi, miso, Config::default());
loop {
let tx_buf = [1_u8, 2, 3, 4, 5, 6];