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Make the interupt IN endpoint non-optional

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This commit is contained in:
alexmoon
2022-04-01 10:15:08 -04:00
committed by Dario Nieuwenhuis
parent a51de5a39a
commit daf2379fa4
1 changed files with 10 additions and 38 deletions
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48
embassy-usb-hid/src/lib.rs
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@@ -98,7 +98,7 @@ impl<'d, D: Driver<'d>, const IN_N: usize, const OUT_N: usize> HidClass<'d, D, I
poll_ms: u8,
) -> Self {
let ep_out = Some(builder.alloc_interrupt_endpoint_out(64, poll_ms));
let ep_in = Some(builder.alloc_interrupt_endpoint_in(64, poll_ms));
let ep_in = builder.alloc_interrupt_endpoint_in(64, poll_ms);
Self::new_inner(
builder,
state,
@@ -119,28 +119,7 @@ impl<'d, D: Driver<'d>, const IN_N: usize, const OUT_N: usize> HidClass<'d, D, I
poll_ms: u8,
) -> Self {
let ep_out = None;
let ep_in = Some(builder.alloc_interrupt_endpoint_in(64, poll_ms));
Self::new_inner(
builder,
state,
report_descriptor,
request_handler,
ep_out,
ep_in,
)
}
/// Creates a new HidClass with the provided UsbBus & HID report descriptor.
/// See new() for more details.
pub fn new_ep_out(
builder: &mut UsbDeviceBuilder<'d, D>,
state: &'d mut State<'d, IN_N, OUT_N>,
report_descriptor: &'static [u8],
request_handler: Option<&'d dyn RequestHandler>,
poll_ms: u8,
) -> Self {
let ep_out = Some(builder.alloc_interrupt_endpoint_out(64, poll_ms));
let ep_in = None;
let ep_in = builder.alloc_interrupt_endpoint_in(64, poll_ms);
Self::new_inner(
builder,
state,
@@ -157,7 +136,7 @@ impl<'d, D: Driver<'d>, const IN_N: usize, const OUT_N: usize> HidClass<'d, D, I
report_descriptor: &'static [u8],
request_handler: Option<&'d dyn RequestHandler>,
ep_out: Option<D::EndpointOut>,
ep_in: Option<D::EndpointIn>,
ep_in: D::EndpointIn,
) -> Self {
let control = state.control.write(Control::new(
report_descriptor,
@@ -165,7 +144,7 @@ impl<'d, D: Driver<'d>, const IN_N: usize, const OUT_N: usize> HidClass<'d, D, I
request_handler,
));
control.build(builder, ep_out.as_ref(), ep_in.as_ref());
control.build(builder, ep_out.as_ref(), &ep_in);
Self {
input: ReportWriter { ep_in },
@@ -196,7 +175,7 @@ impl<'d, D: Driver<'d>, const IN_N: usize, const OUT_N: usize> HidClass<'d, D, I
}
pub struct ReportWriter<'d, D: Driver<'d>, const N: usize> {
ep_in: Option<D::EndpointIn>,
ep_in: D::EndpointIn,
}
pub struct ReportReader<'d, D: Driver<'d>, const N: usize> {
@@ -224,19 +203,14 @@ impl<'d, D: Driver<'d>, const N: usize> ReportWriter<'d, D, N> {
pub async fn write(&mut self, report: &[u8]) -> Result<(), WriteError> {
assert!(report.len() <= N);
let ep = self
.ep_in
.as_mut()
.expect("An IN endpoint must be allocated to write input reports.");
let max_packet_size = usize::from(ep.info().max_packet_size);
let max_packet_size = usize::from(self.ep_in.info().max_packet_size);
let zlp_needed = report.len() < N && (report.len() % max_packet_size == 0);
for chunk in report.chunks(max_packet_size) {
ep.write(chunk).await?;
self.ep_in.write(chunk).await?;
}
if zlp_needed {
ep.write(&[]).await?;
self.ep_in.write(&[]).await?;
}
Ok(())
@@ -363,7 +337,7 @@ impl<'a, const OUT_N: usize> Control<'a, OUT_N> {
&'d mut self,
builder: &mut UsbDeviceBuilder<'d, D>,
ep_out: Option<&D::EndpointOut>,
ep_in: Option<&D::EndpointIn>,
ep_in: &D::EndpointIn,
) {
let len = self.report_descriptor.len();
let if_num = builder.alloc_interface_with_handler(self);
@@ -394,12 +368,10 @@ impl<'a, const OUT_N: usize> Control<'a, OUT_N> {
],
);
builder.config_descriptor.endpoint(ep_in.info());
if let Some(ep) = ep_out {
builder.config_descriptor.endpoint(ep.info());
}
if let Some(ep) = ep_in {
builder.config_descriptor.endpoint(ep.info());
}
}
}