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Add E-H1 uart blocking & nb implementation

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Mathias 2022-09-28 05:19:43 +02:00
parent 9bb43ffe9a
commit 823bd714fb
1 changed files with 73 additions and 0 deletions
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73
embassy-stm32/src/usart/mod.rs
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@ -359,6 +359,79 @@ mod eh1 {
impl<'d, T: BasicInstance, RxDma> embedded_hal_1::serial::ErrorType for UartRx<'d, T, RxDma> {
type Error = Error;
}
impl<'d, T: BasicInstance, RxDma> embedded_hal_1::serial::nb::Read for UartRx<'d, T, RxDma> {
fn read(&mut self) -> nb::Result<u8, Self::Error> {
let r = T::regs();
unsafe {
let sr = sr(r).read();
if sr.pe() {
rdr(r).read_volatile();
Err(nb::Error::Other(Error::Parity))
} else if sr.fe() {
rdr(r).read_volatile();
Err(nb::Error::Other(Error::Framing))
} else if sr.ne() {
rdr(r).read_volatile();
Err(nb::Error::Other(Error::Noise))
} else if sr.ore() {
rdr(r).read_volatile();
Err(nb::Error::Other(Error::Overrun))
} else if sr.rxne() {
Ok(rdr(r).read_volatile())
} else {
Err(nb::Error::WouldBlock)
}
}
}
}
impl<'d, T: BasicInstance, TxDma> embedded_hal_1::serial::blocking::Write for UartTx<'d, T, TxDma> {
fn write(&mut self, buffer: &[u8]) -> Result<(), Self::Error> {
self.blocking_write(buffer)
}
fn flush(&mut self) -> Result<(), Self::Error> {
self.blocking_flush()
}
}
impl<'d, T: BasicInstance, TxDma> embedded_hal_1::serial::nb::Write for UartTx<'d, T, TxDma> {
fn write(&mut self, char: u8) -> nb::Result<(), Self::Error> {
self.blocking_write(&[char]).map_err(nb::Error::Other)
}
fn flush(&mut self) -> nb::Result<(), Self::Error> {
self.blocking_flush().map_err(nb::Error::Other)
}
}
impl<'d, T: BasicInstance, TxDma, RxDma> embedded_hal_1::serial::nb::Read for Uart<'d, T, TxDma, RxDma> {
fn read(&mut self) -> Result<u8, nb::Error<Self::Error>> {
embedded_hal_02::serial::Read::read(&mut self.rx)
}
}
impl<'d, T: BasicInstance, TxDma, RxDma> embedded_hal_1::serial::blocking::Write for Uart<'d, T, TxDma, RxDma> {
fn write(&mut self, buffer: &[u8]) -> Result<(), Self::Error> {
self.blocking_write(buffer)
}
fn flush(&mut self) -> Result<(), Self::Error> {
self.blocking_flush()
}
}
impl<'d, T: BasicInstance, TxDma, RxDma> embedded_hal_1::serial::nb::Write for Uart<'d, T, TxDma, RxDma> {
fn write(&mut self, char: u8) -> nb::Result<(), Self::Error> {
self.blocking_write(&[char]).map_err(nb::Error::Other)
}
fn flush(&mut self) -> nb::Result<(), Self::Error> {
self.blocking_flush().map_err(nb::Error::Other)
}
}
}
#[cfg(all(