71 lines
2.3 KiB
Rust
71 lines
2.3 KiB
Rust
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use core::future::Future;
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use embassy_rp::usb::Driver;
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use embassy_rp::{interrupt, peripherals::USB};
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use embassy_usb::class::cdc_acm::{CdcAcmClass, State};
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use embassy_usb::class::hid::{HidWriter, ReportId, RequestHandler};
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use embassy_usb::control::OutResponse;
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use embassy_usb::{Builder, Config, UsbDevice};
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use usbd_hid::descriptor::{MouseReport, SerializedDescriptor};
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static mut DEVICE_DESCRIPTOR_BUFFER: [u8; 256] = [0; 256];
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static mut CONFIG_DESCRIPTOR_BUFFER: [u8; 256] = [0; 256];
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static mut BOS_DESCRIPTOR_BUFFER: [u8; 256] = [0; 256];
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static mut MSOS_DESCRIPTOR_BUFFER: [u8; 256] = [0; 256];
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static mut CONTROL_BUFFER: [u8; 64] = [0; 64];
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static mut STATE: Option<State<'static>> = None;
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static mut USB: Option<UsbDevice<'static, Driver<'static, USB>>> = None;
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pub struct Serial<'a> {
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class: CdcAcmClass<'a, Driver<'a, USB>>,
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}
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impl Serial<'static> {
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pub fn new(usb: USB) -> Serial<'static> {
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// Create the driver, from the HAL.
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let irq = interrupt::take!(USBCTRL_IRQ);
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let driver = Driver::new(usb, irq);
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// Create embassy-usb Config
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let mut config = Config::new(0xc0de, 0xcafe);
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config.manufacturer = Some("Embassy");
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config.product = Some("USB-serial example");
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config.serial_number = Some("12345678");
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config.max_power = 100;
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config.max_packet_size_0 = 64;
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// Required for windows compatiblity.
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// https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.9.1/kconfig/CONFIG_CDC_ACM_IAD.html#help
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config.device_class = 0xEF;
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config.device_sub_class = 0x02;
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config.device_protocol = 0x01;
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config.composite_with_iads = true;
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unsafe {
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STATE = Some(State::new());
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}
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let mut builder = Builder::new(
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driver,
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config,
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unsafe { &mut DEVICE_DESCRIPTOR_BUFFER },
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unsafe { &mut CONFIG_DESCRIPTOR_BUFFER },
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unsafe { &mut BOS_DESCRIPTOR_BUFFER },
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unsafe { &mut MSOS_DESCRIPTOR_BUFFER },
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unsafe { &mut CONTROL_BUFFER },
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);
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// Create classes on the builder.
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let class = CdcAcmClass::new(&mut builder, unsafe { STATE.as_mut().unwrap() }, 64);
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// Build the builder.
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unsafe {
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USB = Some(builder.build());
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};
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Self { class }
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}
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}
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