Add stm32 USB OTG peripherals
This commit is contained in:
chemicstry
@ -50,6 +50,10 @@ pub mod sdmmc;
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pub mod spi;
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#[cfg(usart)]
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pub mod usart;
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#[cfg(feature = "usb-otg-fs")]
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pub mod usb_otg_fs;
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#[cfg(feature = "usb-otg-hs")]
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pub mod usb_otg_hs;
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#[cfg(feature = "subghz")]
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pub mod subghz;
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159
embassy-stm32/src/usb_otg_fs.rs
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159
embassy-stm32/src/usb_otg_fs.rs
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@ -0,0 +1,159 @@
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use crate::gpio::sealed::{AFType, Pin};
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use crate::{peripherals, rcc::RccPeripheral};
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use core::marker::PhantomData;
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use embassy::util::Unborrow;
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use embassy_hal_common::unborrow;
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pub use embassy_hal_common::usb::*;
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pub use synopsys_usb_otg::UsbBus;
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use synopsys_usb_otg::UsbPeripheral;
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pub struct UsbOtgFs<'d, T: Instance> {
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phantom: PhantomData<&'d mut T>,
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}
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impl<'d, T: Instance> UsbOtgFs<'d, T> {
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pub fn new(
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_peri: impl Unborrow<Target = T> + 'd,
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dp: impl Unborrow<Target = impl DpPin<T>> + 'd,
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dm: impl Unborrow<Target = impl DmPin<T>> + 'd,
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) -> Self {
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unborrow!(dp, dm);
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unsafe {
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dp.set_as_af(dp.af_num(), AFType::OutputPushPull);
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dm.set_as_af(dm.af_num(), AFType::OutputPushPull);
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}
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Self {
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phantom: PhantomData,
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}
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}
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}
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impl<'d, T: Instance> Drop for UsbOtgFs<'d, T> {
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fn drop(&mut self) {
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T::reset();
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T::disable();
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}
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}
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unsafe impl<'d, T: Instance> Send for UsbOtgFs<'d, T> {}
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unsafe impl<'d, T: Instance> Sync for UsbOtgFs<'d, T> {}
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unsafe impl<'d, T: Instance> UsbPeripheral for UsbOtgFs<'d, T> {
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const REGISTERS: *const () = T::REGISTERS;
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const HIGH_SPEED: bool = false;
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cfg_if::cfg_if! {
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if #[cfg(stm32f1)] {
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const FIFO_DEPTH_WORDS: usize = 128;
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const ENDPOINT_COUNT: usize = 8;
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} else if #[cfg(any(
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stm32f2,
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stm32f401,
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stm32f405,
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stm32f407,
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stm32f411,
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stm32f415,
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stm32f417,
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stm32f427,
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stm32f429,
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stm32f437,
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stm32f439,
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))] {
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const FIFO_DEPTH_WORDS: usize = 320;
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const ENDPOINT_COUNT: usize = 4;
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} else if #[cfg(any(
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stm32f412,
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stm32f413,
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stm32f423,
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stm32f446,
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stm32f469,
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stm32f479,
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stm32f7,
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stm32l4,
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stm32u5,
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))] {
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const FIFO_DEPTH_WORDS: usize = 320;
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const ENDPOINT_COUNT: usize = 6;
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} else if #[cfg(stm32g0x1)] {
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const FIFO_DEPTH_WORDS: usize = 512;
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const ENDPOINT_COUNT: usize = 8;
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} else {
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compile_error!("USB_OTG_FS peripheral is not supported by this chip. Disable \"usb-otg-fs\" feature or select a different chip.");
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}
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}
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fn enable() {
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<T as crate::rcc::sealed::RccPeripheral>::enable();
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<T as crate::rcc::sealed::RccPeripheral>::reset();
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}
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fn ahb_frequency_hz(&self) -> u32 {
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<T as crate::rcc::sealed::RccPeripheral>::frequency().0
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}
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}
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pub(crate) mod sealed {
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use super::*;
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pub trait Instance {
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const REGISTERS: *const ();
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}
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pub trait DpPin<T: Instance>: Pin {
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fn af_num(&self) -> u8;
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}
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pub trait DmPin<T: Instance>: Pin {
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fn af_num(&self) -> u8;
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}
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}
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pub trait Instance: sealed::Instance + RccPeripheral {}
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pub trait DpPin<T: Instance>: sealed::DpPin<T> {}
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pub trait DmPin<T: Instance>: sealed::DmPin<T> {}
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crate::pac::peripherals!(
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(otgfs, $inst:ident) => {
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impl sealed::Instance for crate::peripherals::$inst {
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const REGISTERS: *const () = crate::pac::$inst.0 as *const ();
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}
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impl Instance for peripherals::$inst {}
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};
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);
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crate::pac::interrupts!(
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($inst:ident, otgfs, $block:ident, GLOBAL, $irq:ident) => {
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unsafe impl USBInterrupt for crate::interrupt::$irq {}
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};
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);
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macro_rules! impl_pin {
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($inst:ident, $pin:ident, $signal:ident, $af:expr) => {
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impl $signal<peripherals::$inst> for peripherals::$pin {}
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impl sealed::$signal<peripherals::$inst> for peripherals::$pin {
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fn af_num(&self) -> u8 {
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$af
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}
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}
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};
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}
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crate::pac::peripheral_pins!(
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($inst:ident, otgfs, OTG_FS, $pin:ident, DP, $af:expr) => {
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impl_pin!($inst, $pin, DpPin, $af);
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};
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($inst:ident, otgfs, OTG_FS, $pin:ident, DM, $af:expr) => {
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impl_pin!($inst, $pin, DmPin, $af);
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};
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($inst:ident, otgfs, OTG_FS, $pin:ident, DP) => {
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impl_pin!($inst, $pin, DpPin, 0);
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};
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($inst:ident, otgfs, OTG_FS, $pin:ident, DM) => {
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impl_pin!($inst, $pin, DmPin, 0);
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};
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);
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147
embassy-stm32/src/usb_otg_hs.rs
Normal file
147
embassy-stm32/src/usb_otg_hs.rs
Normal file
@ -0,0 +1,147 @@
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use crate::gpio::sealed::{AFType, Pin};
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use crate::{peripherals, rcc::RccPeripheral};
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use core::marker::PhantomData;
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use embassy::util::Unborrow;
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use embassy_hal_common::unborrow;
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pub use embassy_hal_common::usb::*;
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pub use synopsys_usb_otg::UsbBus;
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use synopsys_usb_otg::UsbPeripheral;
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pub struct UsbOtgHs<'d, T: Instance> {
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phantom: PhantomData<&'d mut T>,
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}
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impl<'d, T: Instance> UsbOtgHs<'d, T> {
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pub fn new(
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_peri: impl Unborrow<Target = T> + 'd,
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dp: impl Unborrow<Target = impl DpPin<T>> + 'd,
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dm: impl Unborrow<Target = impl DmPin<T>> + 'd,
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) -> Self {
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unborrow!(dp, dm);
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unsafe {
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dp.set_as_af(dp.af_num(), AFType::OutputPushPull);
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dm.set_as_af(dm.af_num(), AFType::OutputPushPull);
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}
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Self {
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phantom: PhantomData,
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}
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}
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}
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impl<'d, T: Instance> Drop for UsbOtgHs<'d, T> {
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fn drop(&mut self) {
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T::reset();
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T::disable();
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}
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}
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unsafe impl<'d, T: Instance> Send for UsbOtgHs<'d, T> {}
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unsafe impl<'d, T: Instance> Sync for UsbOtgHs<'d, T> {}
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unsafe impl<'d, T: Instance> UsbPeripheral for UsbOtgHs<'d, T> {
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const REGISTERS: *const () = T::REGISTERS;
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const HIGH_SPEED: bool = true;
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cfg_if::cfg_if! {
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if #[cfg(any(
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stm32f2,
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stm32f405,
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stm32f407,
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stm32f415,
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stm32f417,
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stm32f427,
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stm32f429,
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stm32f437,
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stm32f439,
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))] {
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const FIFO_DEPTH_WORDS: usize = 1024;
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const ENDPOINT_COUNT: usize = 6;
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} else if #[cfg(any(
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stm32f446,
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stm32f469,
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stm32f479,
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stm32f7,
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stm32h7,
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))] {
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const FIFO_DEPTH_WORDS: usize = 1024;
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const ENDPOINT_COUNT: usize = 9;
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} else {
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compile_error!("USB_OTG_HS peripheral is not supported by this chip. Disable \"usb-otg-hs\" feature or select a different chip.");
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}
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}
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fn enable() {
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<T as crate::rcc::sealed::RccPeripheral>::enable();
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<T as crate::rcc::sealed::RccPeripheral>::reset();
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}
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fn ahb_frequency_hz(&self) -> u32 {
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<T as crate::rcc::sealed::RccPeripheral>::frequency().0
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}
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}
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pub(crate) mod sealed {
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use super::*;
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pub trait Instance {
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const REGISTERS: *const ();
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}
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pub trait DpPin<T: Instance>: Pin {
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fn af_num(&self) -> u8;
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}
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pub trait DmPin<T: Instance>: Pin {
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fn af_num(&self) -> u8;
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}
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}
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pub trait Instance: sealed::Instance + RccPeripheral {}
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pub trait DpPin<T: Instance>: sealed::DpPin<T> {}
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pub trait DmPin<T: Instance>: sealed::DmPin<T> {}
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crate::pac::peripherals!(
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(otghs, $inst:ident) => {
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impl sealed::Instance for crate::peripherals::$inst {
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const REGISTERS: *const () = crate::pac::$inst.0 as *const ();
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}
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impl Instance for peripherals::$inst {}
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};
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);
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crate::pac::interrupts!(
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($inst:ident, otghs, $block:ident, GLOBAL, $irq:ident) => {
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unsafe impl USBInterrupt for crate::interrupt::$irq {}
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};
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);
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macro_rules! impl_pin {
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($inst:ident, $pin:ident, $signal:ident, $af:expr) => {
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impl $signal<peripherals::$inst> for peripherals::$pin {}
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impl sealed::$signal<peripherals::$inst> for peripherals::$pin {
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fn af_num(&self) -> u8 {
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$af
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}
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}
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};
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}
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crate::pac::peripheral_pins!(
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($inst:ident, otghs, OTG_HS, $pin:ident, DP, $af:expr) => {
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impl_pin!($inst, $pin, DpPin, $af);
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};
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($inst:ident, otghs, OTG_HS, $pin:ident, DM, $af:expr) => {
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impl_pin!($inst, $pin, DmPin, $af);
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};
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($inst:ident, otghs, OTG_HS, $pin:ident, DP) => {
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impl_pin!($inst, $pin, DpPin, 0);
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};
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($inst:ident, otghs, OTG_HS, $pin:ident, DM) => {
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impl_pin!($inst, $pin, DmPin, 0);
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};
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);
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