rust/va108xx-rs
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UART embedded-io fixes

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This commit is contained in:
Robin Müller 2025-03-08 00:19:53 +01:00
parent 3bc2ee4343
commit 3e60d1d59b
Signed by: muellerr
GPG Key ID: A649FB78196E3849
1 changed files with 17 additions and 1 deletions
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18
va108xx-hal/src/uart/mod.rs
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@ -892,7 +892,15 @@ impl<Uart: Instance> embedded_hal_nb::serial::Read<u8> for Rx<Uart> {
impl<Uart: Instance> embedded_io::Read for Rx<Uart> { impl<Uart: Instance> embedded_io::Read for Rx<Uart> {
fn read(&mut self, buf: &mut [u8]) -> Result<usize, Self::Error> { fn read(&mut self, buf: &mut [u8]) -> Result<usize, Self::Error> {
if buf.is_empty() {
return Ok(0);
}
let mut read = 0; let mut read = 0;
loop {
if self.0.rxstatus().read().rdavl().bit_is_set() {
break;
}
}
for byte in buf.iter_mut() { for byte in buf.iter_mut() {
match <Self as embedded_hal_nb::serial::Read<u8>>::read(self) { match <Self as embedded_hal_nb::serial::Read<u8>>::read(self) {
Ok(w) => { Ok(w) => {
@ -1058,6 +1066,14 @@ impl<Uart: Instance> embedded_hal_nb::serial::Write<u8> for Tx<Uart> {
impl<Uart: Instance> embedded_io::Write for Tx<Uart> { impl<Uart: Instance> embedded_io::Write for Tx<Uart> {
fn write(&mut self, buf: &[u8]) -> Result<usize, Self::Error> { fn write(&mut self, buf: &[u8]) -> Result<usize, Self::Error> {
if buf.is_empty() {
return Ok(0);
}
loop {
if self.0.txstatus().read().wrrdy().bit_is_set() {
break;
}
}
let mut written = 0; let mut written = 0;
for byte in buf.iter() { for byte in buf.iter() {
match <Self as embedded_hal_nb::serial::Write<u8>>::write(self, *byte) { match <Self as embedded_hal_nb::serial::Write<u8>>::write(self, *byte) {
@ -1066,7 +1082,7 @@ impl<Uart: Instance> embedded_io::Write for Tx<Uart> {
} }
} }
Ok(buf.len()) Ok(written)
} }
fn flush(&mut self) -> Result<(), Self::Error> { fn flush(&mut self) -> Result<(), Self::Error> {