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nrf async twim

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This commit is contained in:
Folkert
2021-06-04 17:31:35 +02:00
parent cd44b221ed
commit 857ac3386b
2 changed files with 126 additions and 7 deletions
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20
embassy-traits/src/i2c.rs
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@ -94,9 +94,15 @@ pub trait I2c<A: AddressMode = SevenBitAddress> {
/// Error type
type Error;
type ReadFuture<'a>: Future<Output = Result<(), Self::Error>> + 'a;
type WriteFuture<'a>: Future<Output = Result<(), Self::Error>> + 'a;
type WriteReadFuture<'a>: Future<Output = Result<(), Self::Error>> + 'a;
type WriteFuture<'a>: Future<Output = Result<(), Self::Error>> + 'a
where
Self: 'a;
type ReadFuture<'a>: Future<Output = Result<(), Self::Error>> + 'a
where
Self: 'a;
type WriteReadFuture<'a>: Future<Output = Result<(), Self::Error>> + 'a
where
Self: 'a;
/// Reads enough bytes from slave with `address` to fill `buffer`
///
@ -116,7 +122,7 @@ pub trait I2c<A: AddressMode = SevenBitAddress> {
/// - `MAK` = master acknowledge
/// - `NMAK` = master no acknowledge
/// - `SP` = stop condition
fn read<'a>(&'a mut self, address: A, buffer: &mut [u8]) -> Self::ReadFuture<'a>;
fn read<'a>(&'a mut self, address: A, buffer: &'a mut [u8]) -> Self::ReadFuture<'a>;
/// Sends bytes to slave with address `address`
///
@ -134,7 +140,7 @@ pub trait I2c<A: AddressMode = SevenBitAddress> {
/// - `SAK` = slave acknowledge
/// - `Bi` = ith byte of data
/// - `SP` = stop condition
fn write<'a>(&'a mut self, address: A, bytes: &[u8]) -> Self::WriteFuture<'a>;
fn write<'a>(&'a mut self, address: A, bytes: &'a [u8]) -> Self::WriteFuture<'a>;
/// Sends bytes to slave with address `address` and then reads enough bytes to fill `buffer` *in a
/// single transaction*
@ -161,7 +167,7 @@ pub trait I2c<A: AddressMode = SevenBitAddress> {
fn write_read<'a>(
&'a mut self,
address: A,
bytes: &[u8],
buffer: &mut [u8],
bytes: &'a [u8],
buffer: &'a mut [u8],
) -> Self::WriteReadFuture<'a>;
}