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Merge pull request #1626 from embassy-rs/otg-read-disable

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stm32/otg: implement `EndpointError::Disabled` for reads.
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Dario Nieuwenhuis 2023-07-07 01:58:39 +00:00 committed by GitHub
commit e196387e69
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1 changed files with 15 additions and 2 deletions
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17
embassy-stm32/src/usb_otg/usb.rs
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@ -1154,14 +1154,22 @@ impl<'d, T: Instance> embassy_usb_driver::EndpointOut for Endpoint<'d, T, Out> {
trace!("read start len={}", buf.len());
poll_fn(|cx| {
let r = T::regs();
let index = self.info.addr.index();
let state = T::state();
state.ep_out_wakers[index].register(cx.waker());
let doepctl = r.doepctl(index).read();
trace!("read ep={:?}: doepctl {:08x}", self.info.addr, doepctl.0,);
if !doepctl.usbaep() {
trace!("read ep={:?} error disabled", self.info.addr);
return Poll::Ready(Err(EndpointError::Disabled));
}
let len = state.ep_out_size[index].load(Ordering::Relaxed);
if len != EP_OUT_BUFFER_EMPTY {
trace!("read done len={}", len);
trace!("read ep={:?} done len={}", self.info.addr, len);
if len as usize > buf.len() {
return Poll::Ready(Err(EndpointError::BufferOverflow));
@ -1214,7 +1222,12 @@ impl<'d, T: Instance> embassy_usb_driver::EndpointIn for Endpoint<'d, T, In> {
let diepctl = r.diepctl(index).read();
let dtxfsts = r.dtxfsts(index).read();
trace!("diepctl {:08x} ftxfsts {:08x}", diepctl.0, dtxfsts.0);
trace!(
"write ep={:?}: diepctl {:08x} ftxfsts {:08x}",
self.info.addr,
diepctl.0,
dtxfsts.0
);
if !diepctl.usbaep() {
trace!("write ep={:?} wait for prev: error disabled", self.info.addr);
Poll::Ready(Err(EndpointError::Disabled))