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Implement eh 0.2.* serial::Write for Uart/UartTx

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This commit is contained in:
Alpha3__0 2023-05-25 11:33:29 -07:00
parent 6efcc9acaa
commit 0d80a95e54
1 changed files with 38 additions and 0 deletions
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38
embassy-rp/src/uart/mod.rs
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@ -755,6 +755,32 @@ mod eh02 {
}
}
impl<'d, T: Instance, M: Mode> embedded_hal_02::serial::Write<u8> for UartTx<'d, T, M> {
type Error = Error;
fn write(&mut self, word: u8) -> nb::Result<(), Self::Error> {
let r = T::regs();
unsafe {
if r.uartfr().read().txff() {
return Err(nb::Error::WouldBlock);
}
r.uartdr().write(|w| w.set_data(word));
}
Ok(())
}
fn flush(&mut self) -> nb::Result<(), Self::Error> {
let r = T::regs();
unsafe {
if !r.uartfr().read().txfe() {
return Err(nb::Error::WouldBlock);
}
}
Ok(())
}
}
impl<'d, T: Instance, M: Mode> embedded_hal_02::blocking::serial::Write<u8> for UartTx<'d, T, M> {
type Error = Error;
@ -775,6 +801,18 @@ mod eh02 {
}
}
impl<'d, T: Instance, M: Mode> embedded_hal_02::serial::Write<u8> for Uart<'d, T, M> {
type Error = Error;
fn write(&mut self, word: u8) -> Result<(), nb::Error<Self::Error>> {
embedded_hal_02::serial::Write::write(&mut self.tx, word)
}
fn flush(&mut self) -> Result<(), nb::Error<Self::Error>> {
embedded_hal_02::serial::Write::flush(&mut self.tx)
}
}
impl<'d, T: Instance, M: Mode> embedded_hal_02::blocking::serial::Write<u8> for Uart<'d, T, M> {
type Error = Error;