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Merge #1145

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1145: STM32 USB OTG #2 r=Dirbaio a=chemicstry

This is a continuation of #799

The usb serial example is already working!

TODO:
- [x] Add critical sections to registers shared with IRQ
- [x] Fix `disable()`
- [x] ~Implement cable disconnect detection~ - postponed
- [x] Fix `endpoint_set_enabled()`
- [x] ~Endpoint `wait_enabled`~ USB OTG does not have enable delay (?)
- [x] HS internal and HS ULPI PHY - untested

Co-authored-by: chemicstry <chemicstry@gmail.com>
Co-authored-by: Dario Nieuwenhuis <dirbaio@dirbaio.net>
This commit is contained in:
bors[bot]
2023-01-11 17:05:59 +00:00
committed by GitHub
parent 96b97c4711 1af102a1aa
commit 88fd521b01
22 changed files with 2132 additions and 282 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
embassy-nrf/src/usb.rs
View File

@@ -391,11 +391,6 @@ impl<'d, T: Instance, P: UsbSupply> driver::Bus for Bus<'d, T, P> {
.await
}
#[inline]
fn set_address(&mut self, _addr: u8) {
// Nothing to do, the peripheral handles this.
}
fn endpoint_set_stalled(&mut self, ep_addr: EndpointAddress, stalled: bool) {
let regs = T::regs();
unsafe {
@@ -841,6 +836,11 @@ impl<'d, T: Instance> driver::ControlPipe for ControlPipe<'d, T> {
let regs = T::regs();
regs.tasks_ep0stall.write(|w| w.tasks_ep0stall().bit(true));
}
async fn accept_set_address(&mut self, _addr: u8) {
self.accept().await;
// Nothing to do, the peripheral handles this.
}
}
fn dma_start() {

15
embassy-rp/src/usb.rs
View File

@@ -406,13 +406,6 @@ impl<'d, T: Instance> driver::Bus for Bus<'d, T> {
.await
}
#[inline]
fn set_address(&mut self, addr: u8) {
let regs = T::regs();
trace!("setting addr: {}", addr);
unsafe { regs.addr_endp().write(|w| w.set_address(addr)) }
}
fn endpoint_set_stalled(&mut self, _ep_addr: EndpointAddress, _stalled: bool) {
todo!();
}
@@ -812,4 +805,12 @@ impl<'d, T: Instance> driver::ControlPipe for ControlPipe<'d, T> {
T::dpram().ep_in_buffer_control(0).write(|w| w.set_stall(true));
}
}
async fn accept_set_address(&mut self, addr: u8) {
self.accept().await;
let regs = T::regs();
trace!("setting addr: {}", addr);
unsafe { regs.addr_endp().write(|w| w.set_address(addr)) }
}
}

30
embassy-stm32/build.rs
View File

@@ -277,22 +277,20 @@ fn main() {
(("dcmi", "PIXCLK"), quote!(crate::dcmi::PixClkPin)),
(("usb", "DP"), quote!(crate::usb::DpPin)),
(("usb", "DM"), quote!(crate::usb::DmPin)),
(("otgfs", "DP"), quote!(crate::usb_otg::DpPin)),
(("otgfs", "DM"), quote!(crate::usb_otg::DmPin)),
(("otghs", "DP"), quote!(crate::usb_otg::DpPin)),
(("otghs", "DM"), quote!(crate::usb_otg::DmPin)),
(("otghs", "ULPI_CK"), quote!(crate::usb_otg::UlpiClkPin)),
(("otghs", "ULPI_DIR"), quote!(crate::usb_otg::UlpiDirPin)),
(("otghs", "ULPI_NXT"), quote!(crate::usb_otg::UlpiNxtPin)),
(("otghs", "ULPI_STP"), quote!(crate::usb_otg::UlpiStpPin)),
(("otghs", "ULPI_D0"), quote!(crate::usb_otg::UlpiD0Pin)),
(("otghs", "ULPI_D1"), quote!(crate::usb_otg::UlpiD1Pin)),
(("otghs", "ULPI_D2"), quote!(crate::usb_otg::UlpiD2Pin)),
(("otghs", "ULPI_D3"), quote!(crate::usb_otg::UlpiD3Pin)),
(("otghs", "ULPI_D4"), quote!(crate::usb_otg::UlpiD4Pin)),
(("otghs", "ULPI_D5"), quote!(crate::usb_otg::UlpiD5Pin)),
(("otghs", "ULPI_D6"), quote!(crate::usb_otg::UlpiD6Pin)),
(("otghs", "ULPI_D7"), quote!(crate::usb_otg::UlpiD7Pin)),
(("otg", "DP"), quote!(crate::usb_otg::DpPin)),
(("otg", "DM"), quote!(crate::usb_otg::DmPin)),
(("otg", "ULPI_CK"), quote!(crate::usb_otg::UlpiClkPin)),
(("otg", "ULPI_DIR"), quote!(crate::usb_otg::UlpiDirPin)),
(("otg", "ULPI_NXT"), quote!(crate::usb_otg::UlpiNxtPin)),
(("otg", "ULPI_STP"), quote!(crate::usb_otg::UlpiStpPin)),
(("otg", "ULPI_D0"), quote!(crate::usb_otg::UlpiD0Pin)),
(("otg", "ULPI_D1"), quote!(crate::usb_otg::UlpiD1Pin)),
(("otg", "ULPI_D2"), quote!(crate::usb_otg::UlpiD2Pin)),
(("otg", "ULPI_D3"), quote!(crate::usb_otg::UlpiD3Pin)),
(("otg", "ULPI_D4"), quote!(crate::usb_otg::UlpiD4Pin)),
(("otg", "ULPI_D5"), quote!(crate::usb_otg::UlpiD5Pin)),
(("otg", "ULPI_D6"), quote!(crate::usb_otg::UlpiD6Pin)),
(("otg", "ULPI_D7"), quote!(crate::usb_otg::UlpiD7Pin)),
(("can", "TX"), quote!(crate::can::TxPin)),
(("can", "RX"), quote!(crate::can::RxPin)),
(("eth", "REF_CLK"), quote!(crate::eth::RefClkPin)),

2
embassy-stm32/src/lib.rs
View File

@@ -58,7 +58,7 @@ pub mod spi;
pub mod usart;
#[cfg(all(usb, feature = "time"))]
pub mod usb;
#[cfg(any(otgfs, otghs))]
#[cfg(otg)]
pub mod usb_otg;
#[cfg(iwdg)]

30
embassy-stm32/src/rcc/u5.rs
View File

@@ -295,6 +295,7 @@ pub struct Config {
pub apb1_pre: APBPrescaler,
pub apb2_pre: APBPrescaler,
pub apb3_pre: APBPrescaler,
pub hsi48: bool,
}
impl Default for Config {
@@ -305,6 +306,7 @@ impl Default for Config {
apb1_pre: Default::default(),
apb2_pre: Default::default(),
apb3_pre: Default::default(),
hsi48: false,
}
}
}
@@ -320,7 +322,6 @@ pub(crate) unsafe fn init(config: Config) {
RCC.cr().write(|w| {
w.set_msipllen(false);
w.set_msison(true);
w.set_msison(true);
});
while !RCC.cr().read().msisrdy() {}
@@ -340,9 +341,20 @@ pub(crate) unsafe fn init(config: Config) {
}
ClockSrc::PLL1R(src, m, n, div) => {
let freq = match src {
PllSrc::MSI(_) => MSIRange::default().into(),
PllSrc::HSE(hertz) => hertz.0,
PllSrc::HSI16 => HSI_FREQ.0,
PllSrc::MSI(_) => {
// TODO: enable MSI
MSIRange::default().into()
}
PllSrc::HSE(hertz) => {
// TODO: enable HSE
hertz.0
}
PllSrc::HSI16 => {
RCC.cr().write(|w| w.set_hsion(true));
while !RCC.cr().read().hsirdy() {}
HSI_FREQ.0
}
};
// disable
@@ -355,6 +367,7 @@ pub(crate) unsafe fn init(config: Config) {
RCC.pll1cfgr().write(|w| {
w.set_pllm(m.into());
w.set_pllsrc(src.into());
w.set_pllren(true);
});
RCC.pll1divr().modify(|w| {
@@ -365,15 +378,16 @@ pub(crate) unsafe fn init(config: Config) {
// Enable PLL
RCC.cr().modify(|w| w.set_pllon(0, true));
while !RCC.cr().read().pllrdy(0) {}
RCC.pll1cfgr().modify(|w| w.set_pllren(true));
RCC.cr().write(|w| w.set_pllon(0, true));
while !RCC.cr().read().pllrdy(0) {}
pll_ck
}
};
if config.hsi48 {
RCC.cr().modify(|w| w.set_hsi48on(true));
while !RCC.cr().read().hsi48rdy() {}
}
// TODO make configurable
let power_vos = VoltageScale::Range4;

26
embassy-stm32/src/usb/usb.rs
View File

@@ -154,6 +154,7 @@ impl<'d, T: Instance> Driver<'d, T> {
block_for(Duration::from_millis(100));
#[cfg(not(usb_v4))]
regs.btable().write(|w| w.set_btable(0));
dp.set_as_af(dp.af_num(), AFType::OutputPushPull);
@@ -489,18 +490,6 @@ impl<'d, T: Instance> driver::Bus for Bus<'d, T> {
.await
}
#[inline]
fn set_address(&mut self, addr: u8) {
let regs = T::regs();
trace!("setting addr: {}", addr);
unsafe {
regs.daddr().write(|w| {
w.set_ef(true);
w.set_add(addr);
})
}
}
fn endpoint_set_stalled(&mut self, ep_addr: EndpointAddress, stalled: bool) {
// This can race, so do a retry loop.
let reg = T::regs().epr(ep_addr.index() as _);
@@ -1017,4 +1006,17 @@ impl<'d, T: Instance> driver::ControlPipe for ControlPipe<'d, T> {
});
}
}
async fn accept_set_address(&mut self, addr: u8) {
self.accept().await;
let regs = T::regs();
trace!("setting addr: {}", addr);
unsafe {
regs.daddr().write(|w| {
w.set_ef(true);
w.set_add(addr);
})
}
}
}

213
embassy-stm32/src/usb_otg.rs
View File

@@ -1,213 +0,0 @@
use core::marker::PhantomData;
use embassy_hal_common::into_ref;
use crate::gpio::sealed::AFType;
use crate::rcc::RccPeripheral;
use crate::{peripherals, Peripheral};
macro_rules! config_ulpi_pins {
($($pin:ident),*) => {
into_ref!($($pin),*);
// NOTE(unsafe) Exclusive access to the registers
critical_section::with(|_| unsafe {
$(
$pin.set_as_af($pin.af_num(), AFType::OutputPushPull);
#[cfg(gpio_v2)]
$pin.set_speed(crate::gpio::Speed::VeryHigh);
)*
})
};
}
/// USB PHY type
#[derive(Copy, Clone, Debug, Eq, PartialEq)]
pub enum PhyType {
/// Internal Full-Speed PHY
///
/// Available on most High-Speed peripherals.
InternalFullSpeed,
/// Internal High-Speed PHY
///
/// Available on a few STM32 chips.
InternalHighSpeed,
/// External ULPI High-Speed PHY
ExternalHighSpeed,
}
pub struct UsbOtg<'d, T: Instance> {
phantom: PhantomData<&'d mut T>,
_phy_type: PhyType,
}
impl<'d, T: Instance> UsbOtg<'d, T> {
/// Initializes USB OTG peripheral with internal Full-Speed PHY
pub fn new_fs(
_peri: impl Peripheral<P = T> + 'd,
dp: impl Peripheral<P = impl DpPin<T>> + 'd,
dm: impl Peripheral<P = impl DmPin<T>> + 'd,
) -> Self {
into_ref!(dp, dm);
unsafe {
dp.set_as_af(dp.af_num(), AFType::OutputPushPull);
dm.set_as_af(dm.af_num(), AFType::OutputPushPull);
}
Self {
phantom: PhantomData,
_phy_type: PhyType::InternalFullSpeed,
}
}
/// Initializes USB OTG peripheral with external High-Speed PHY
pub fn new_hs_ulpi(
_peri: impl Peripheral<P = T> + 'd,
ulpi_clk: impl Peripheral<P = impl UlpiClkPin<T>> + 'd,
ulpi_dir: impl Peripheral<P = impl UlpiDirPin<T>> + 'd,
ulpi_nxt: impl Peripheral<P = impl UlpiNxtPin<T>> + 'd,
ulpi_stp: impl Peripheral<P = impl UlpiStpPin<T>> + 'd,
ulpi_d0: impl Peripheral<P = impl UlpiD0Pin<T>> + 'd,
ulpi_d1: impl Peripheral<P = impl UlpiD1Pin<T>> + 'd,
ulpi_d2: impl Peripheral<P = impl UlpiD2Pin<T>> + 'd,
ulpi_d3: impl Peripheral<P = impl UlpiD3Pin<T>> + 'd,
ulpi_d4: impl Peripheral<P = impl UlpiD4Pin<T>> + 'd,
ulpi_d5: impl Peripheral<P = impl UlpiD5Pin<T>> + 'd,
ulpi_d6: impl Peripheral<P = impl UlpiD6Pin<T>> + 'd,
ulpi_d7: impl Peripheral<P = impl UlpiD7Pin<T>> + 'd,
) -> Self {
config_ulpi_pins!(
ulpi_clk, ulpi_dir, ulpi_nxt, ulpi_stp, ulpi_d0, ulpi_d1, ulpi_d2, ulpi_d3, ulpi_d4, ulpi_d5, ulpi_d6,
ulpi_d7
);
Self {
phantom: PhantomData,
_phy_type: PhyType::ExternalHighSpeed,
}
}
}
impl<'d, T: Instance> Drop for UsbOtg<'d, T> {
fn drop(&mut self) {
T::reset();
T::disable();
}
}
pub(crate) mod sealed {
pub trait Instance {
const REGISTERS: *const ();
const HIGH_SPEED: bool;
const FIFO_DEPTH_WORDS: usize;
const ENDPOINT_COUNT: usize;
}
}
pub trait Instance: sealed::Instance + RccPeripheral {}
// Internal PHY pins
pin_trait!(DpPin, Instance);
pin_trait!(DmPin, Instance);
// External PHY pins
pin_trait!(UlpiClkPin, Instance);
pin_trait!(UlpiDirPin, Instance);
pin_trait!(UlpiNxtPin, Instance);
pin_trait!(UlpiStpPin, Instance);
pin_trait!(UlpiD0Pin, Instance);
pin_trait!(UlpiD1Pin, Instance);
pin_trait!(UlpiD2Pin, Instance);
pin_trait!(UlpiD3Pin, Instance);
pin_trait!(UlpiD4Pin, Instance);
pin_trait!(UlpiD5Pin, Instance);
pin_trait!(UlpiD6Pin, Instance);
pin_trait!(UlpiD7Pin, Instance);
foreach_peripheral!(
(otgfs, $inst:ident) => {
impl sealed::Instance for peripherals::$inst {
const REGISTERS: *const () = crate::pac::$inst.0 as *const ();
const HIGH_SPEED: bool = false;
cfg_if::cfg_if! {
if #[cfg(stm32f1)] {
const FIFO_DEPTH_WORDS: usize = 128;
const ENDPOINT_COUNT: usize = 8;
} else if #[cfg(any(
stm32f2,
stm32f401,
stm32f405,
stm32f407,
stm32f411,
stm32f415,
stm32f417,
stm32f427,
stm32f429,
stm32f437,
stm32f439,
))] {
const FIFO_DEPTH_WORDS: usize = 320;
const ENDPOINT_COUNT: usize = 4;
} else if #[cfg(any(
stm32f412,
stm32f413,
stm32f423,
stm32f446,
stm32f469,
stm32f479,
stm32f7,
stm32l4,
stm32u5,
))] {
const FIFO_DEPTH_WORDS: usize = 320;
const ENDPOINT_COUNT: usize = 6;
} else if #[cfg(stm32g0x1)] {
const FIFO_DEPTH_WORDS: usize = 512;
const ENDPOINT_COUNT: usize = 8;
} else {
compile_error!("USB_OTG_FS peripheral is not supported by this chip.");
}
}
}
impl Instance for peripherals::$inst {}
};
(otghs, $inst:ident) => {
impl sealed::Instance for peripherals::$inst {
const REGISTERS: *const () = crate::pac::$inst.0 as *const ();
const HIGH_SPEED: bool = true;
cfg_if::cfg_if! {
if #[cfg(any(
stm32f2,
stm32f405,
stm32f407,
stm32f415,
stm32f417,
stm32f427,
stm32f429,
stm32f437,
stm32f439,
))] {
const FIFO_DEPTH_WORDS: usize = 1024;
const ENDPOINT_COUNT: usize = 6;
} else if #[cfg(any(
stm32f446,
stm32f469,
stm32f479,
stm32f7,
stm32h7,
))] {
const FIFO_DEPTH_WORDS: usize = 1024;
const ENDPOINT_COUNT: usize = 9;
} else {
compile_error!("USB_OTG_HS peripheral is not supported by this chip.");
}
}
}
impl Instance for peripherals::$inst {}
};
);

161
embassy-stm32/src/usb_otg/mod.rs Normal file
View File

@@ -0,0 +1,161 @@
use embassy_cortex_m::interrupt::Interrupt;
use crate::peripherals;
use crate::rcc::RccPeripheral;
#[cfg(feature = "nightly")]
mod usb;
#[cfg(feature = "nightly")]
pub use usb::*;
// Using Instance::ENDPOINT_COUNT requires feature(const_generic_expr) so just define maximum eps
#[cfg(feature = "nightly")]
const MAX_EP_COUNT: usize = 9;
pub(crate) mod sealed {
pub trait Instance {
const HIGH_SPEED: bool;
const FIFO_DEPTH_WORDS: u16;
const ENDPOINT_COUNT: usize;
fn regs() -> crate::pac::otg::Otg;
#[cfg(feature = "nightly")]
fn state() -> &'static super::State<{ super::MAX_EP_COUNT }>;
}
}
pub trait Instance: sealed::Instance + RccPeripheral {
type Interrupt: Interrupt;
}
// Internal PHY pins
pin_trait!(DpPin, Instance);
pin_trait!(DmPin, Instance);
// External PHY pins
pin_trait!(UlpiClkPin, Instance);
pin_trait!(UlpiDirPin, Instance);
pin_trait!(UlpiNxtPin, Instance);
pin_trait!(UlpiStpPin, Instance);
pin_trait!(UlpiD0Pin, Instance);
pin_trait!(UlpiD1Pin, Instance);
pin_trait!(UlpiD2Pin, Instance);
pin_trait!(UlpiD3Pin, Instance);
pin_trait!(UlpiD4Pin, Instance);
pin_trait!(UlpiD5Pin, Instance);
pin_trait!(UlpiD6Pin, Instance);
pin_trait!(UlpiD7Pin, Instance);
foreach_interrupt!(
(USB_OTG_FS, otg, $block:ident, GLOBAL, $irq:ident) => {
impl sealed::Instance for peripherals::USB_OTG_FS {
const HIGH_SPEED: bool = false;
cfg_if::cfg_if! {
if #[cfg(stm32f1)] {
const FIFO_DEPTH_WORDS: u16 = 128;
const ENDPOINT_COUNT: usize = 8;
} else if #[cfg(any(
stm32f2,
stm32f401,
stm32f405,
stm32f407,
stm32f411,
stm32f415,
stm32f417,
stm32f427,
stm32f429,
stm32f437,
stm32f439,
))] {
const FIFO_DEPTH_WORDS: u16 = 320;
const ENDPOINT_COUNT: usize = 4;
} else if #[cfg(any(
stm32f412,
stm32f413,
stm32f423,
stm32f446,
stm32f469,
stm32f479,
stm32f7,
stm32l4,
stm32u5,
))] {
const FIFO_DEPTH_WORDS: u16 = 320;
const ENDPOINT_COUNT: usize = 6;
} else if #[cfg(stm32g0x1)] {
const FIFO_DEPTH_WORDS: u16 = 512;
const ENDPOINT_COUNT: usize = 8;
} else if #[cfg(stm32h7)] {
const FIFO_DEPTH_WORDS: u16 = 1024;
const ENDPOINT_COUNT: usize = 9;
} else {
compile_error!("USB_OTG_FS peripheral is not supported by this chip.");
}
}
fn regs() -> crate::pac::otg::Otg {
crate::pac::USB_OTG_FS
}
#[cfg(feature = "nightly")]
fn state() -> &'static State<MAX_EP_COUNT> {
static STATE: State<MAX_EP_COUNT> = State::new();
&STATE
}
}
impl Instance for peripherals::USB_OTG_FS {
type Interrupt = crate::interrupt::$irq;
}
};
(USB_OTG_HS, otg, $block:ident, GLOBAL, $irq:ident) => {
impl sealed::Instance for peripherals::USB_OTG_HS {
const HIGH_SPEED: bool = true;
cfg_if::cfg_if! {
if #[cfg(any(
stm32f2,
stm32f405,
stm32f407,
stm32f415,
stm32f417,
stm32f427,
stm32f429,
stm32f437,
stm32f439,
))] {
const FIFO_DEPTH_WORDS: u16 = 1024;
const ENDPOINT_COUNT: usize = 6;
} else if #[cfg(any(
stm32f446,
stm32f469,
stm32f479,
stm32f7,
stm32h7,
))] {
const FIFO_DEPTH_WORDS: u16 = 1024;
const ENDPOINT_COUNT: usize = 9;
} else {
compile_error!("USB_OTG_HS peripheral is not supported by this chip.");
}
}
fn regs() -> crate::pac::otg::Otg {
// OTG HS registers are a superset of FS registers
crate::pac::otg::Otg(crate::pac::USB_OTG_HS.0)
}
#[cfg(feature = "nightly")]
fn state() -> &'static State<MAX_EP_COUNT> {
static STATE: State<MAX_EP_COUNT> = State::new();
&STATE
}
}
impl Instance for peripherals::USB_OTG_HS {
type Interrupt = crate::interrupt::$irq;
}
};
);

1346
embassy-stm32/src/usb_otg/usb.rs Normal file
View File

File diff suppressed because it is too large Load Diff

9
embassy-usb-driver/src/lib.rs
View File

@@ -164,9 +164,6 @@ pub trait Bus {
async fn poll(&mut self) -> Event;
/// Sets the device USB address to `addr`.
fn set_address(&mut self, addr: u8);
/// Enables or disables an endpoint.
fn endpoint_set_enabled(&mut self, ep_addr: EndpointAddress, enabled: bool);
@@ -306,6 +303,12 @@ pub trait ControlPipe {
///
/// Sets a STALL condition on the pipe to indicate an error.
async fn reject(&mut self);
/// Accept SET_ADDRESS control and change bus address.
///
/// For most drivers this function should firstly call `accept()` and then change the bus address.
/// However, there are peripherals (Synopsys USB OTG) that have reverse order.
async fn accept_set_address(&mut self, addr: u8);
}
pub trait EndpointIn: Endpoint {

23
embassy-usb/src/lib.rs
View File

@@ -122,10 +122,9 @@ struct Inner<'d, D: Driver<'d>> {
/// Our device address, or 0 if none.
address: u8,
/// When receiving a set addr control request, we have to apply it AFTER we've
/// finished handling the control request, as the status stage still has to be
/// handled with addr 0.
/// If true, do a set_addr after finishing the current control req.
/// SET_ADDRESS requests have special handling depending on the driver.
/// This flag indicates that requests must be handled by `ControlPipe::accept_set_address()`
/// instead of regular `accept()`.
set_address_pending: bool,
interfaces: Vec<Interface<'d>, MAX_INTERFACE_COUNT>,
@@ -254,11 +253,6 @@ impl<'d, D: Driver<'d>> UsbDevice<'d, D> {
Direction::In => self.handle_control_in(req).await,
Direction::Out => self.handle_control_out(req).await,
}
if self.inner.set_address_pending {
self.inner.bus.set_address(self.inner.address);
self.inner.set_address_pending = false;
}
}
async fn handle_control_in(&mut self, req: Request) {
@@ -328,7 +322,14 @@ impl<'d, D: Driver<'d>> UsbDevice<'d, D> {
trace!(" control out data: {:02x?}", data);
match self.inner.handle_control_out(req, data) {
OutResponse::Accepted => self.control.accept().await,
OutResponse::Accepted => {
if self.inner.set_address_pending {
self.control.accept_set_address(self.inner.address).await;
self.inner.set_address_pending = false;
} else {
self.control.accept().await
}
}
OutResponse::Rejected => self.control.reject().await,
}
}
@@ -655,7 +656,7 @@ impl<'d, D: Driver<'d>> Inner<'d, D> {
buf[1] = descriptor_type::STRING;
let mut pos = 2;
for c in s.encode_utf16() {
if pos >= buf.len() {
if pos + 2 >= buf.len() {
panic!("control buffer too small");
}

5
examples/stm32f4/Cargo.toml
View File

@@ -10,6 +10,7 @@ embassy-sync = { version = "0.1.0", path = "../../embassy-sync", features = ["de
embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "unstable-traits", "tick-hz-32_768"] }
embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "unstable-traits", "defmt", "stm32f429zi", "unstable-pac", "memory-x", "time-driver-any", "exti"] }
embassy-usb = { version = "0.1.0", path = "../../embassy-usb", features = ["defmt"] }
defmt = "0.3"
defmt-rtt = "0.4"
@@ -26,5 +27,5 @@ embedded-storage = "0.3.0"
micromath = "2.0.0"
static_cell = "1.0"
usb-device = "0.2"
usbd-serial = "0.1.1"
[profile.release]
debug = 2

106
examples/stm32f4/src/bin/usb_serial.rs Normal file
View File

@@ -0,0 +1,106 @@
#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
use defmt::{panic, *};
use embassy_executor::Spawner;
use embassy_stm32::time::mhz;
use embassy_stm32::usb_otg::{Driver, Instance};
use embassy_stm32::{interrupt, Config};
use embassy_usb::class::cdc_acm::{CdcAcmClass, State};
use embassy_usb::driver::EndpointError;
use embassy_usb::Builder;
use futures::future::join;
use {defmt_rtt as _, panic_probe as _};
#[embassy_executor::main]
async fn main(_spawner: Spawner) {
info!("Hello World!");
let mut config = Config::default();
config.rcc.pll48 = true;
config.rcc.sys_ck = Some(mhz(48));
let p = embassy_stm32::init(config);
// Create the driver, from the HAL.
let irq = interrupt::take!(OTG_FS);
let mut ep_out_buffer = [0u8; 256];
let driver = Driver::new_fs(p.USB_OTG_FS, irq, p.PA12, p.PA11, &mut ep_out_buffer);
// Create embassy-usb Config
let mut config = embassy_usb::Config::new(0xc0de, 0xcafe);
config.manufacturer = Some("Embassy");
config.product = Some("USB-serial example");
config.serial_number = Some("12345678");
// Required for windows compatiblity.
// https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.9.1/kconfig/CONFIG_CDC_ACM_IAD.html#help
config.device_class = 0xEF;
config.device_sub_class = 0x02;
config.device_protocol = 0x01;
config.composite_with_iads = true;
// Create embassy-usb DeviceBuilder using the driver and config.
// It needs some buffers for building the descriptors.
let mut device_descriptor = [0; 256];
let mut config_descriptor = [0; 256];
let mut bos_descriptor = [0; 256];
let mut control_buf = [0; 64];
let mut state = State::new();
let mut builder = Builder::new(
driver,
config,
&mut device_descriptor,
&mut config_descriptor,
&mut bos_descriptor,
&mut control_buf,
None,
);
// Create classes on the builder.
let mut class = CdcAcmClass::new(&mut builder, &mut state, 64);
// Build the builder.
let mut usb = builder.build();
// Run the USB device.
let usb_fut = usb.run();
// Do stuff with the class!
let echo_fut = async {
loop {
class.wait_connection().await;
info!("Connected");
let _ = echo(&mut class).await;
info!("Disconnected");
}
};
// Run everything concurrently.
// If we had made everything `'static` above instead, we could do this using separate tasks instead.
join(usb_fut, echo_fut).await;
}
struct Disconnected {}
impl From<EndpointError> for Disconnected {
fn from(val: EndpointError) -> Self {
match val {
EndpointError::BufferOverflow => panic!("Buffer overflow"),
EndpointError::Disabled => Disconnected {},
}
}
}
async fn echo<'d, T: Instance + 'd>(class: &mut CdcAcmClass<'d, Driver<'d, T>>) -> Result<(), Disconnected> {
let mut buf = [0; 64];
loop {
let n = class.read_packet(&mut buf).await?;
let data = &buf[..n];
info!("data: {:x}", data);
class.write_packet(data).await?;
}
}

1
examples/stm32f7/Cargo.toml
View File

@@ -11,6 +11,7 @@ embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["de
embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "stm32f767zi", "unstable-pac", "time-driver-any", "exti"] }
embassy-net = { path = "../../embassy-net", features = ["defmt", "nightly", "tcp", "dhcpv4", "medium-ethernet"] }
embedded-io = { version = "0.4.0", features = ["async"] }
embassy-usb = { version = "0.1.0", path = "../../embassy-usb", features = ["defmt"] }
defmt = "0.3"
defmt-rtt = "0.4"

107
examples/stm32f7/src/bin/usb_serial.rs Normal file
View File

@@ -0,0 +1,107 @@
#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
use defmt::{panic, *};
use embassy_executor::Spawner;
use embassy_stm32::time::mhz;
use embassy_stm32::usb_otg::{Driver, Instance};
use embassy_stm32::{interrupt, Config};
use embassy_usb::class::cdc_acm::{CdcAcmClass, State};
use embassy_usb::driver::EndpointError;
use embassy_usb::Builder;
use futures::future::join;
use {defmt_rtt as _, panic_probe as _};
#[embassy_executor::main]
async fn main(_spawner: Spawner) {
info!("Hello World!");
let mut config = Config::default();
config.rcc.hse = Some(mhz(8));
config.rcc.pll48 = true;
config.rcc.sys_ck = Some(mhz(200));
let p = embassy_stm32::init(config);
// Create the driver, from the HAL.
let irq = interrupt::take!(OTG_FS);
let mut ep_out_buffer = [0u8; 256];
let driver = Driver::new_fs(p.USB_OTG_FS, irq, p.PA12, p.PA11, &mut ep_out_buffer);
// Create embassy-usb Config
let mut config = embassy_usb::Config::new(0xc0de, 0xcafe);
config.manufacturer = Some("Embassy");
config.product = Some("USB-serial example");
config.serial_number = Some("12345678");
// Required for windows compatiblity.
// https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.9.1/kconfig/CONFIG_CDC_ACM_IAD.html#help
config.device_class = 0xEF;
config.device_sub_class = 0x02;
config.device_protocol = 0x01;
config.composite_with_iads = true;
// Create embassy-usb DeviceBuilder using the driver and config.
// It needs some buffers for building the descriptors.
let mut device_descriptor = [0; 256];
let mut config_descriptor = [0; 256];
let mut bos_descriptor = [0; 256];
let mut control_buf = [0; 64];
let mut state = State::new();
let mut builder = Builder::new(
driver,
config,
&mut device_descriptor,
&mut config_descriptor,
&mut bos_descriptor,
&mut control_buf,
None,
);
// Create classes on the builder.
let mut class = CdcAcmClass::new(&mut builder, &mut state, 64);
// Build the builder.
let mut usb = builder.build();
// Run the USB device.
let usb_fut = usb.run();
// Do stuff with the class!
let echo_fut = async {
loop {
class.wait_connection().await;
info!("Connected");
let _ = echo(&mut class).await;
info!("Disconnected");
}
};
// Run everything concurrently.
// If we had made everything `'static` above instead, we could do this using separate tasks instead.
join(usb_fut, echo_fut).await;
}
struct Disconnected {}
impl From<EndpointError> for Disconnected {
fn from(val: EndpointError) -> Self {
match val {
EndpointError::BufferOverflow => panic!("Buffer overflow"),
EndpointError::Disabled => Disconnected {},
}
}
}
async fn echo<'d, T: Instance + 'd>(class: &mut CdcAcmClass<'d, Driver<'d, T>>) -> Result<(), Disconnected> {
let mut buf = [0; 64];
loop {
let n = class.read_packet(&mut buf).await?;
let data = &buf[..n];
info!("data: {:x}", data);
class.write_packet(data).await?;
}
}

1
examples/stm32h7/Cargo.toml
View File

@@ -11,6 +11,7 @@ embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["de
embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "stm32h743bi", "time-driver-any", "exti", "unstable-pac", "unstable-traits"] }
embassy-net = { path = "../../embassy-net", features = ["defmt", "nightly", "tcp", "dhcpv4", "medium-ethernet", "unstable-traits"] }
embedded-io = { version = "0.4.0", features = ["async"] }
embassy-usb = { version = "0.1.0", path = "../../embassy-usb", features = ["defmt"] }
defmt = "0.3"
defmt-rtt = "0.4"

106
examples/stm32h7/src/bin/usb_serial.rs Normal file
View File

@@ -0,0 +1,106 @@
#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
use defmt::{panic, *};
use embassy_executor::Spawner;
use embassy_stm32::time::mhz;
use embassy_stm32::usb_otg::{Driver, Instance};
use embassy_stm32::{interrupt, Config};
use embassy_usb::class::cdc_acm::{CdcAcmClass, State};
use embassy_usb::driver::EndpointError;
use embassy_usb::Builder;
use futures::future::join;
use {defmt_rtt as _, panic_probe as _};
#[embassy_executor::main]
async fn main(_spawner: Spawner) {
info!("Hello World!");
let mut config = Config::default();
config.rcc.sys_ck = Some(mhz(400));
config.rcc.hclk = Some(mhz(200));
config.rcc.pll1.q_ck = Some(mhz(100));
let p = embassy_stm32::init(config);
// Create the driver, from the HAL.
let irq = interrupt::take!(OTG_FS);
let mut ep_out_buffer = [0u8; 256];
let driver = Driver::new_fs(p.USB_OTG_FS, irq, p.PA12, p.PA11, &mut ep_out_buffer);
// Create embassy-usb Config
let mut config = embassy_usb::Config::new(0xc0de, 0xcafe);
config.manufacturer = Some("Embassy");
config.product = Some("USB-serial example");
config.serial_number = Some("12345678");
// Required for windows compatiblity.
// https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.9.1/kconfig/CONFIG_CDC_ACM_IAD.html#help
config.device_class = 0xEF;
config.device_sub_class = 0x02;
config.device_protocol = 0x01;
config.composite_with_iads = true;
// Create embassy-usb DeviceBuilder using the driver and config.
// It needs some buffers for building the descriptors.
let mut device_descriptor = [0; 256];
let mut config_descriptor = [0; 256];
let mut bos_descriptor = [0; 256];
let mut control_buf = [0; 64];
let mut state = State::new();
let mut builder = Builder::new(
driver,
config,
&mut device_descriptor,
&mut config_descriptor,
&mut bos_descriptor,
&mut control_buf,
None,
);
// Create classes on the builder.
let mut class = CdcAcmClass::new(&mut builder, &mut state, 64);
// Build the builder.
let mut usb = builder.build();
// Run the USB device.
let usb_fut = usb.run();
// Do stuff with the class!
let echo_fut = async {
loop {
class.wait_connection().await;
info!("Connected");
let _ = echo(&mut class).await;
info!("Disconnected");
}
};
// Run everything concurrently.
// If we had made everything `'static` above instead, we could do this using separate tasks instead.
join(usb_fut, echo_fut).await;
}
struct Disconnected {}
impl From<EndpointError> for Disconnected {
fn from(val: EndpointError) -> Self {
match val {
EndpointError::BufferOverflow => panic!("Buffer overflow"),
EndpointError::Disabled => Disconnected {},
}
}
}
async fn echo<'d, T: Instance + 'd>(class: &mut CdcAcmClass<'d, Driver<'d, T>>) -> Result<(), Disconnected> {
let mut buf = [0; 64];
loop {
let n = class.read_packet(&mut buf).await?;
let data = &buf[..n];
info!("data: {:x}", data);
class.write_packet(data).await?;
}
}

4
examples/stm32l4/Cargo.toml
View File

@@ -12,6 +12,7 @@ embassy-executor = { version = "0.1.0", path = "../../embassy-executor", feature
embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
embassy-embedded-hal = { version = "0.1.0", path = "../../embassy-embedded-hal" }
embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "unstable-pac", "stm32l4s5vi", "time-driver-any", "exti", "unstable-traits"] }
embassy-usb = { version = "0.1.0", path = "../../embassy-usb", features = ["defmt"] }
defmt = "0.3"
defmt-rtt = "0.4"
@@ -26,6 +27,3 @@ futures = { version = "0.3.17", default-features = false, features = ["async-awa
heapless = { version = "0.7.5", default-features = false }
micromath = "2.0.0"
usb-device = "0.2"
usbd-serial = "0.1.1"

108
examples/stm32l4/src/bin/usb_serial.rs Normal file
View File

@@ -0,0 +1,108 @@
#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
use defmt::{panic, *};
use defmt_rtt as _; // global logger
use embassy_executor::Spawner;
use embassy_stm32::rcc::*;
use embassy_stm32::usb_otg::{Driver, Instance};
use embassy_stm32::{interrupt, Config};
use embassy_usb::class::cdc_acm::{CdcAcmClass, State};
use embassy_usb::driver::EndpointError;
use embassy_usb::Builder;
use futures::future::join;
use panic_probe as _;
#[embassy_executor::main]
async fn main(_spawner: Spawner) {
info!("Hello World!");
let mut config = Config::default();
config.rcc.mux = ClockSrc::PLL(PLLSource::HSI16, PLLClkDiv::Div2, PLLSrcDiv::Div1, PLLMul::Mul10, None);
config.rcc.hsi48 = true;
let p = embassy_stm32::init(config);
// Create the driver, from the HAL.
let irq = interrupt::take!(OTG_FS);
let mut ep_out_buffer = [0u8; 256];
let driver = Driver::new_fs(p.USB_OTG_FS, irq, p.PA12, p.PA11, &mut ep_out_buffer);
// Create embassy-usb Config
let mut config = embassy_usb::Config::new(0xc0de, 0xcafe);
config.max_packet_size_0 = 64;
config.manufacturer = Some("Embassy");
config.product = Some("USB-serial example");
config.serial_number = Some("12345678");
// Required for windows compatiblity.
// https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.9.1/kconfig/CONFIG_CDC_ACM_IAD.html#help
config.device_class = 0xEF;
config.device_sub_class = 0x02;
config.device_protocol = 0x01;
config.composite_with_iads = true;
// Create embassy-usb DeviceBuilder using the driver and config.
// It needs some buffers for building the descriptors.
let mut device_descriptor = [0; 256];
let mut config_descriptor = [0; 256];
let mut bos_descriptor = [0; 256];
let mut control_buf = [0; 64];
let mut state = State::new();
let mut builder = Builder::new(
driver,
config,
&mut device_descriptor,
&mut config_descriptor,
&mut bos_descriptor,
&mut control_buf,
None,
);
// Create classes on the builder.
let mut class = CdcAcmClass::new(&mut builder, &mut state, 64);
// Build the builder.
let mut usb = builder.build();
// Run the USB device.
let usb_fut = usb.run();
// Do stuff with the class!
let echo_fut = async {
loop {
class.wait_connection().await;
info!("Connected");
let _ = echo(&mut class).await;
info!("Disconnected");
}
};
// Run everything concurrently.
// If we had made everything `'static` above instead, we could do this using separate tasks instead.
join(usb_fut, echo_fut).await;
}
struct Disconnected {}
impl From<EndpointError> for Disconnected {
fn from(val: EndpointError) -> Self {
match val {
EndpointError::BufferOverflow => panic!("Buffer overflow"),
EndpointError::Disabled => Disconnected {},
}
}
}
async fn echo<'d, T: Instance + 'd>(class: &mut CdcAcmClass<'d, Driver<'d, T>>) -> Result<(), Disconnected> {
let mut buf = [0; 64];
loop {
let n = class.read_packet(&mut buf).await?;
let data = &buf[..n];
info!("data: {:x}", data);
class.write_packet(data).await?;
}
}

1
examples/stm32u5/Cargo.toml
View File

@@ -9,6 +9,7 @@ embassy-sync = { version = "0.1.0", path = "../../embassy-sync", features = ["de
embassy-executor = { version = "0.1.0", path = "../../embassy-executor", features = ["defmt", "integrated-timers"] }
embassy-time = { version = "0.1.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["nightly", "defmt", "unstable-pac", "stm32u585ai", "time-driver-any", "memory-x" ] }
embassy-usb = { version = "0.1.0", path = "../../embassy-usb", features = ["defmt"] }
defmt = "0.3"
defmt-rtt = "0.4"

108
examples/stm32u5/src/bin/usb_serial.rs Normal file
View File

@@ -0,0 +1,108 @@
#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
use defmt::{panic, *};
use defmt_rtt as _; // global logger
use embassy_executor::Spawner;
use embassy_stm32::rcc::*;
use embassy_stm32::usb_otg::{Driver, Instance};
use embassy_stm32::{interrupt, Config};
use embassy_usb::class::cdc_acm::{CdcAcmClass, State};
use embassy_usb::driver::EndpointError;
use embassy_usb::Builder;
use futures::future::join;
use panic_probe as _;
#[embassy_executor::main]
async fn main(_spawner: Spawner) {
info!("Hello World!");
let mut config = Config::default();
config.rcc.mux = ClockSrc::PLL1R(PllSrc::HSI16, PllM::Div2, PllN::Mul10, PllClkDiv::NotDivided);
//config.rcc.mux = ClockSrc::MSI(MSIRange::Range48mhz);
config.rcc.hsi48 = true;
let p = embassy_stm32::init(config);
// Create the driver, from the HAL.
let irq = interrupt::take!(OTG_FS);
let mut ep_out_buffer = [0u8; 256];
let driver = Driver::new_fs(p.USB_OTG_FS, irq, p.PA12, p.PA11, &mut ep_out_buffer);
// Create embassy-usb Config
let mut config = embassy_usb::Config::new(0xc0de, 0xcafe);
config.manufacturer = Some("Embassy");
config.product = Some("USB-serial example");
config.serial_number = Some("12345678");
// Required for windows compatiblity.
// https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.9.1/kconfig/CONFIG_CDC_ACM_IAD.html#help
config.device_class = 0xEF;
config.device_sub_class = 0x02;
config.device_protocol = 0x01;
config.composite_with_iads = true;
// Create embassy-usb DeviceBuilder using the driver and config.
// It needs some buffers for building the descriptors.
let mut device_descriptor = [0; 256];
let mut config_descriptor = [0; 256];
let mut bos_descriptor = [0; 256];
let mut control_buf = [0; 64];
let mut state = State::new();
let mut builder = Builder::new(
driver,
config,
&mut device_descriptor,
&mut config_descriptor,
&mut bos_descriptor,
&mut control_buf,
None,
);
// Create classes on the builder.
let mut class = CdcAcmClass::new(&mut builder, &mut state, 64);
// Build the builder.
let mut usb = builder.build();
// Run the USB device.
let usb_fut = usb.run();
// Do stuff with the class!
let echo_fut = async {
loop {
class.wait_connection().await;
info!("Connected");
let _ = echo(&mut class).await;
info!("Disconnected");
}
};
// Run everything concurrently.
// If we had made everything `'static` above instead, we could do this using separate tasks instead.
join(usb_fut, echo_fut).await;
}
struct Disconnected {}
impl From<EndpointError> for Disconnected {
fn from(val: EndpointError) -> Self {
match val {
EndpointError::BufferOverflow => panic!("Buffer overflow"),
EndpointError::Disabled => Disconnected {},
}
}
}
async fn echo<'d, T: Instance + 'd>(class: &mut CdcAcmClass<'d, Driver<'d, T>>) -> Result<(), Disconnected> {
let mut buf = [0; 64];
loop {
let n = class.read_packet(&mut buf).await?;
let data = &buf[..n];
info!("data: {:x}", data);
class.write_packet(data).await?;
}
}

2
stm32-data

Submodule stm32-data updated: 14a448c318...844793fc3d