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Add support for USB classes handling control requests.

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This commit is contained in:
alexmoon
2022-03-25 16:46:14 -04:00
committed by Dario Nieuwenhuis
parent 5c0db627fe
commit bdc6e0481c
8 changed files with 703 additions and 291 deletions
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14
embassy-usb/src/builder.rs
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@ -1,3 +1,4 @@
use super::class::UsbClass;
use super::descriptor::{BosWriter, DescriptorWriter};
use super::driver::{Driver, EndpointAllocError};
use super::types::*;
@ -174,7 +175,10 @@ impl<'d, D: Driver<'d>> UsbDeviceBuilder<'d, D> {
}
/// Creates the [`UsbDevice`] instance with the configuration in this builder.
pub fn build(mut self) -> UsbDevice<'d, D> {
///
/// If a device has mutliple [`UsbClass`]es, they can be provided as a tuple list:
/// `(class1, (class2, (class3, ()))`.
pub fn build<C: UsbClass<'d, D>>(mut self, classes: C) -> UsbDevice<'d, D, C> {
self.config_descriptor.end_configuration();
self.bos_descriptor.end_bos();
@ -184,6 +188,7 @@ impl<'d, D: Driver<'d>> UsbDeviceBuilder<'d, D> {
self.device_descriptor.into_buf(),
self.config_descriptor.into_buf(),
self.bos_descriptor.writer.into_buf(),
classes,
)
}
@ -268,9 +273,10 @@ impl<'d, D: Driver<'d>> UsbDeviceBuilder<'d, D> {
/// Panics if endpoint allocation fails, because running out of endpoints or memory is not
/// feasibly recoverable.
#[inline]
pub fn alloc_control_endpoint_out(&mut self, max_packet_size: u16) -> D::EndpointOut {
self.alloc_endpoint_out(None, EndpointType::Control, max_packet_size, 0)
.expect("alloc_ep failed")
pub fn alloc_control_pipe(&mut self, max_packet_size: u16) -> D::ControlPipe {
self.bus
.alloc_control_pipe(max_packet_size)
.expect("alloc_control_pipe failed")
}
/// Allocates a bulk in endpoint.