embassy/embassy-traits/src/uart.rs
2021-04-14 17:04:40 +02:00

35 lines
935 B
Rust

use core::future::Future;
use core::pin::Pin;
#[derive(Copy, Clone, Debug, Eq, PartialEq)]
#[cfg_attr(feature = "defmt", derive(defmt::Format))]
#[non_exhaustive]
pub enum Error {
Other,
}
pub trait Read {
type ReadFuture<'a>: Future<Output = Result<(), Error>>
where
Self: 'a;
fn read<'a>(&'a mut self, buf: &'a mut [u8]) -> Self::ReadFuture<'a>;
}
pub trait ReadUntilIdle {
type ReadUntilIdleFuture<'a>: Future<Output = Result<usize, Error>>
where
Self: 'a;
/// Receive into the buffer until the buffer is full or the line is idle after some bytes are received
/// Return the number of bytes received
fn read_until_idle<'a>(&'a mut self, buf: &'a mut [u8]) -> Self::ReadUntilIdleFuture<'a>;
}
pub trait Write {
type WriteFuture<'a>: Future<Output = Result<(), Error>>
where
Self: 'a;
fn write<'a>(&'a mut self, buf: &'a [u8]) -> Self::WriteFuture<'a>;
}