pub trait Transfer<W> {
type Error;
fn transfer<'w>(&mut self, words: &'w mut [W]) -> Result<&'w [W], Self::Error>;
}
pub trait Write<W> {
type Error;
fn write(&mut self, words: &[W]) -> Result<(), Self::Error>;
}
#[cfg(feature = "unproven")]
pub trait WriteIter<W> {
type Error;
fn write_iter<WI>(&mut self, words: WI) -> Result<(), Self::Error>
where
WI: IntoIterator<Item = W>;
}
pub mod transfer {
pub trait Default<W>: ::spi::FullDuplex<W> {}
impl<W, S> ::blocking::spi::Transfer<W> for S
where
S: Default<W>,
W: Clone,
{
type Error = S::Error;
fn transfer<'w>(&mut self, words: &'w mut [W]) -> Result<&'w [W], S::Error> {
for word in words.iter_mut() {
block!(self.send(word.clone()))?;
*word = block!(self.read())?;
}
Ok(words)
}
}
}
pub mod write {
pub trait Default<W>: ::spi::FullDuplex<W> {}
impl<W, S> ::blocking::spi::Write<W> for S
where
S: Default<W>,
W: Clone,
{
type Error = S::Error;
fn write(&mut self, words: &[W]) -> Result<(), S::Error> {
for word in words {
block!(self.send(word.clone()))?;
block!(self.read())?;
}
Ok(())
}
}
}
#[cfg(feature = "unproven")]
pub mod write_iter {
pub trait Default<W>: ::spi::FullDuplex<W> {}
impl<W, S> ::blocking::spi::WriteIter<W> for S
where
S: Default<W>,
W: Clone,
{
type Error = S::Error;
fn write_iter<WI>(&mut self, words: WI) -> Result<(), S::Error>
where
WI: IntoIterator<Item = W>,
{
for word in words.into_iter() {
block!(self.send(word.clone()))?;
block!(self.read())?;
}
Ok(())
}
}
}
#[derive(Debug, PartialEq)]
pub enum Operation<'a, W: 'static> {
Write(&'a [W]),
Transfer(&'a mut [W]),
}
pub trait Transactional<W: 'static> {
type Error;
fn exec<'a>(&mut self, operations: &mut [Operation<'a, W>]) -> Result<(), Self::Error>;
}