use core::future::Future; use core::mem; use core::pin::Pin; use embassy::gpio::{WaitForFallingEdge, WaitForRisingEdge}; use embassy::interrupt::OwnedInterrupt; use embassy::util::InterruptFuture; use crate::hal::gpio; use crate::hal::gpio::{Edge, ExtiPin as HalExtiPin}; use crate::hal::syscfg::SysCfg; use crate::pac::EXTI; use crate::interrupt; pub struct ExtiManager { syscfg: SysCfg, } impl<'a> ExtiManager { pub fn new(_exti: EXTI, syscfg: SysCfg) -> Self { Self { syscfg } } pub fn new_pin(&'static mut self, mut pin: T, interrupt: I) -> ExtiPin where T: HalExtiPin + WithInterrupt, I: OwnedInterrupt, { pin.make_interrupt_source(&mut self.syscfg); ExtiPin { pin, interrupt, _mgr: self, } } } pub struct ExtiPin { pin: T, interrupt: I, _mgr: &'static ExtiManager, } /* Irq Handler Description EXTI0_IRQn EXTI0_IRQHandler Handler for pins connected to line 0 EXTI1_IRQn EXTI1_IRQHandler Handler for pins connected to line 1 EXTI2_IRQn EXTI2_IRQHandler Handler for pins connected to line 2 EXTI3_IRQn EXTI3_IRQHandler Handler for pins connected to line 3 EXTI4_IRQn EXTI4_IRQHandler Handler for pins connected to line 4 EXTI9_5_IRQn EXTI9_5_IRQHandler Handler for pins connected to line 5 to 9 EXTI15_10_IRQn EXTI15_10_IRQHandler Handler for pins connected to line 10 to 15 */ impl WaitForRisingEdge for ExtiPin { type Future<'a> = impl Future + 'a; fn wait_for_rising_edge<'a>(self: Pin<&'a mut Self>) -> Self::Future<'a> { let s = unsafe { self.get_unchecked_mut() }; async move { let fut = InterruptFuture::new(&mut s.interrupt); s.pin.clear_interrupt_pending_bit(); let mut exti: EXTI = unsafe { mem::transmute(()) }; s.pin.trigger_on_edge(&mut exti, Edge::RISING); s.pin.enable_interrupt(&mut exti); fut.await; s.pin.clear_interrupt_pending_bit(); } } } impl WaitForFallingEdge for ExtiPin { type Future<'a> = impl Future + 'a; fn wait_for_falling_edge<'a>(self: Pin<&'a mut Self>) -> Self::Future<'a> { let s = unsafe { self.get_unchecked_mut() }; async move { let fut = InterruptFuture::new(&mut s.interrupt); s.pin.clear_interrupt_pending_bit(); let mut exti: EXTI = unsafe { mem::transmute(()) }; s.pin.trigger_on_edge(&mut exti, Edge::FALLING); s.pin.enable_interrupt(&mut exti); fut.await; s.pin.clear_interrupt_pending_bit(); } } } mod private { pub trait Sealed {} } pub trait WithInterrupt: private::Sealed { type Instance; } macro_rules! exti { ($($PER:ident => ($set:ident, $pin:ident),)+) => { $( impl private::Sealed for gpio::$set::$pin {} impl WithInterrupt for gpio::$set::$pin { type Instance = interrupt::$PER; } )+ } } #[cfg(any( feature = "stm32f401", feature = "stm32f405", feature = "stm32f407", feature = "stm32f410", feature = "stm32f411", feature = "stm32f412", feature = "stm32f413", feature = "stm32f415", feature = "stm32f417", feature = "stm32f423", feature = "stm32f427", feature = "stm32f429", feature = "stm32f437", feature = "stm32f439", feature = "stm32f446", feature = "stm32f469", feature = "stm32f479" ))] exti! { EXTI0Interrupt => (gpioa, PA0), EXTI1Interrupt => (gpioa, PA1), EXTI2Interrupt => (gpioa, PA2), EXTI3Interrupt => (gpioa, PA3), EXTI4Interrupt => (gpioa, PA4), EXTI9_5Interrupt => (gpioa, PA5), EXTI9_5Interrupt => (gpioa, PA6), EXTI9_5Interrupt => (gpioa, PA7), EXTI9_5Interrupt => (gpioa, PA8), EXTI9_5Interrupt => (gpioa, PA9), EXTI15_10Interrupt => (gpioa, PA10), EXTI15_10Interrupt => (gpioa, PA11), EXTI15_10Interrupt => (gpioa, PA12), EXTI15_10Interrupt => (gpioa, PA13), EXTI15_10Interrupt => (gpioa, PA14), EXTI15_10Interrupt => (gpioa, PA15), } #[cfg(any( feature = "stm32f401", feature = "stm32f405", feature = "stm32f407", feature = "stm32f410", feature = "stm32f411", feature = "stm32f412", feature = "stm32f413", feature = "stm32f415", feature = "stm32f417", feature = "stm32f423", feature = "stm32f427", feature = "stm32f429", feature = "stm32f437", feature = "stm32f439", feature = "stm32f446", feature = "stm32f469", feature = "stm32f479" ))] exti! { EXTI0Interrupt => (gpiob, PB0), EXTI1Interrupt => (gpiob, PB1), EXTI2Interrupt => (gpiob, PB2), EXTI3Interrupt => (gpiob, PB3), EXTI4Interrupt => (gpiob, PB4), EXTI9_5Interrupt => (gpiob, PB5), EXTI9_5Interrupt => (gpiob, PB6), EXTI9_5Interrupt => (gpiob, PB7), EXTI9_5Interrupt => (gpiob, PB8), EXTI9_5Interrupt => (gpiob, PB9), EXTI15_10Interrupt => (gpiob, PB10), EXTI15_10Interrupt => (gpiob, PB11), EXTI15_10Interrupt => (gpiob, PB12), EXTI15_10Interrupt => (gpiob, PB13), EXTI15_10Interrupt => (gpiob, PB14), EXTI15_10Interrupt => (gpiob, PB15), } #[cfg(any( feature = "stm32f401", feature = "stm32f405", feature = "stm32f407", feature = "stm32f410", feature = "stm32f411", feature = "stm32f412", feature = "stm32f413", feature = "stm32f415", feature = "stm32f417", feature = "stm32f423", feature = "stm32f427", feature = "stm32f429", feature = "stm32f437", feature = "stm32f439", feature = "stm32f446", feature = "stm32f469", feature = "stm32f479" ))] exti! { EXTI0Interrupt => (gpioc, PC0), EXTI1Interrupt => (gpioc, PC1), EXTI2Interrupt => (gpioc, PC2), EXTI3Interrupt => (gpioc, PC3), EXTI4Interrupt => (gpioc, PC4), EXTI9_5Interrupt => (gpioc, PC5), EXTI9_5Interrupt => (gpioc, PC6), EXTI9_5Interrupt => (gpioc, PC7), EXTI9_5Interrupt => (gpioc, PC8), EXTI9_5Interrupt => (gpioc, PC9), EXTI15_10Interrupt => (gpioc, PC10), EXTI15_10Interrupt => (gpioc, PC11), EXTI15_10Interrupt => (gpioc, PC12), EXTI15_10Interrupt => (gpioc, PC13), EXTI15_10Interrupt => (gpioc, PC14), EXTI15_10Interrupt => (gpioc, PC15), } #[cfg(any( feature = "stm32f401", feature = "stm32f405", feature = "stm32f407", feature = "stm32f411", feature = "stm32f412", feature = "stm32f413", feature = "stm32f415", feature = "stm32f417", feature = "stm32f423", feature = "stm32f427", feature = "stm32f429", feature = "stm32f437", feature = "stm32f439", feature = "stm32f446", feature = "stm32f469", feature = "stm32f479" ))] exti! { EXTI0Interrupt => (gpiod, PD0), EXTI1Interrupt => (gpiod, PD1), EXTI2Interrupt => (gpiod, PD2), EXTI3Interrupt => (gpiod, PD3), EXTI4Interrupt => (gpiod, PD4), EXTI9_5Interrupt => (gpiod, PD5), EXTI9_5Interrupt => (gpiod, PD6), EXTI9_5Interrupt => (gpiod, PD7), EXTI9_5Interrupt => (gpiod, PD8), EXTI9_5Interrupt => (gpiod, PD9), EXTI15_10Interrupt => (gpiod, PD10), EXTI15_10Interrupt => (gpiod, PD11), EXTI15_10Interrupt => (gpiod, PD12), EXTI15_10Interrupt => (gpiod, PD13), EXTI15_10Interrupt => (gpiod, PD14), EXTI15_10Interrupt => (gpiod, PD15), } #[cfg(any( feature = "stm32f401", feature = "stm32f405", feature = "stm32f407", feature = "stm32f411", feature = "stm32f412", feature = "stm32f413", feature = "stm32f415", feature = "stm32f417", feature = "stm32f423", feature = "stm32f427", feature = "stm32f429", feature = "stm32f437", feature = "stm32f439", feature = "stm32f446", feature = "stm32f469", feature = "stm32f479" ))] exti! { EXTI0Interrupt => (gpioe, PE0), EXTI1Interrupt => (gpioe, PE1), EXTI2Interrupt => (gpioe, PE2), EXTI3Interrupt => (gpioe, PE3), EXTI4Interrupt => (gpioe, PE4), EXTI9_5Interrupt => (gpioe, PE5), EXTI9_5Interrupt => (gpioe, PE6), EXTI9_5Interrupt => (gpioe, PE7), EXTI9_5Interrupt => (gpioe, PE8), EXTI9_5Interrupt => (gpioe, PE9), EXTI15_10Interrupt => (gpioe, PE10), EXTI15_10Interrupt => (gpioe, PE11), EXTI15_10Interrupt => (gpioe, PE12), EXTI15_10Interrupt => (gpioe, PE13), EXTI15_10Interrupt => (gpioe, PE14), EXTI15_10Interrupt => (gpioe, PE15), } #[cfg(any( feature = "stm32f405", feature = "stm32f407", feature = "stm32f412", feature = "stm32f413", feature = "stm32f415", feature = "stm32f417", feature = "stm32f423", feature = "stm32f427", feature = "stm32f429", feature = "stm32f437", feature = "stm32f439", feature = "stm32f446", feature = "stm32f469", feature = "stm32f479" ))] exti! { EXTI0Interrupt => (gpiof, PF0), EXTI1Interrupt => (gpiof, PF1), EXTI2Interrupt => (gpiof, PF2), EXTI3Interrupt => (gpiof, PF3), EXTI4Interrupt => (gpiof, PF4), EXTI9_5Interrupt => (gpiof, PF5), EXTI9_5Interrupt => (gpiof, PF6), EXTI9_5Interrupt => (gpiof, PF7), EXTI9_5Interrupt => (gpiof, PF8), EXTI9_5Interrupt => (gpiof, PF9), EXTI15_10Interrupt => (gpiof, PF10), EXTI15_10Interrupt => (gpiof, PF11), EXTI15_10Interrupt => (gpiof, PF12), EXTI15_10Interrupt => (gpiof, PF13), EXTI15_10Interrupt => (gpiof, PF14), EXTI15_10Interrupt => (gpiof, PF15), } #[cfg(any( feature = "stm32f405", feature = "stm32f407", feature = "stm32f412", feature = "stm32f413", feature = "stm32f415", feature = "stm32f417", feature = "stm32f423", feature = "stm32f427", feature = "stm32f429", feature = "stm32f437", feature = "stm32f439", feature = "stm32f446", feature = "stm32f469", feature = "stm32f479" ))] exti! { EXTI0Interrupt => (gpiog, PG0), EXTI1Interrupt => (gpiog, PG1), EXTI2Interrupt => (gpiog, PG2), EXTI3Interrupt => (gpiog, PG3), EXTI4Interrupt => (gpiog, PG4), EXTI9_5Interrupt => (gpiog, PG5), EXTI9_5Interrupt => (gpiog, PG6), EXTI9_5Interrupt => (gpiog, PG7), EXTI9_5Interrupt => (gpiog, PG8), EXTI9_5Interrupt => (gpiog, PG9), EXTI15_10Interrupt => (gpiog, PG10), EXTI15_10Interrupt => (gpiog, PG11), EXTI15_10Interrupt => (gpiog, PG12), EXTI15_10Interrupt => (gpiog, PG13), EXTI15_10Interrupt => (gpiog, PG14), EXTI15_10Interrupt => (gpiog, PG15), } #[cfg(any( feature = "stm32f405", feature = "stm32f407", feature = "stm32f410", feature = "stm32f411", feature = "stm32f412", feature = "stm32f413", feature = "stm32f415", feature = "stm32f417", feature = "stm32f423", feature = "stm32f427", feature = "stm32f429", feature = "stm32f437", feature = "stm32f439", feature = "stm32f446", feature = "stm32f469", feature = "stm32f479" ))] exti! { EXTI0Interrupt => (gpioh, PH0), EXTI1Interrupt => (gpioh, PH1), EXTI2Interrupt => (gpioh, PH2), EXTI3Interrupt => (gpioh, PH3), EXTI4Interrupt => (gpioh, PH4), EXTI9_5Interrupt => (gpioh, PH5), EXTI9_5Interrupt => (gpioh, PH6), EXTI9_5Interrupt => (gpioh, PH7), EXTI9_5Interrupt => (gpioh, PH8), EXTI9_5Interrupt => (gpioh, PH9), EXTI15_10Interrupt => (gpioh, PH10), EXTI15_10Interrupt => (gpioh, PH11), EXTI15_10Interrupt => (gpioh, PH12), EXTI15_10Interrupt => (gpioh, PH13), EXTI15_10Interrupt => (gpioh, PH14), EXTI15_10Interrupt => (gpioh, PH15), } #[cfg(any(feature = "stm32f401"))] exti! { EXTI0Interrupt => (gpioh, PH0), EXTI1Interrupt => (gpioh, PH1), } #[cfg(any( feature = "stm32f405", feature = "stm32f407", feature = "stm32f415", feature = "stm32f417", feature = "stm32f427", feature = "stm32f429", feature = "stm32f437", feature = "stm32f439", feature = "stm32f469", feature = "stm32f479" ))] exti! { EXTI0Interrupt => (gpioi, PI0), EXTI1Interrupt => (gpioi, PI1), EXTI2Interrupt => (gpioi, PI2), EXTI3Interrupt => (gpioi, PI3), EXTI4Interrupt => (gpioi, PI4), EXTI9_5Interrupt => (gpioi, PI5), EXTI9_5Interrupt => (gpioi, PI6), EXTI9_5Interrupt => (gpioi, PI7), EXTI9_5Interrupt => (gpioi, PI8), EXTI9_5Interrupt => (gpioi, PI9), EXTI15_10Interrupt => (gpioi, PI10), EXTI15_10Interrupt => (gpioi, PI11), EXTI15_10Interrupt => (gpioi, PI12), EXTI15_10Interrupt => (gpioi, PI13), EXTI15_10Interrupt => (gpioi, PI14), EXTI15_10Interrupt => (gpioi, PI15), } #[cfg(any( feature = "stm32f427", feature = "stm32f429", feature = "stm32f437", feature = "stm32f439", feature = "stm32f469", feature = "stm32f479" ))] exti! { EXTI0Interrupt => (gpioj, PJ0), EXTI1Interrupt => (gpioj, PJ1), EXTI2Interrupt => (gpioj, PJ2), EXTI3Interrupt => (gpioj, PJ3), EXTI4Interrupt => (gpioj, PJ4), EXTI9_5Interrupt => (gpioj, PJ5), EXTI9_5Interrupt => (gpioj, PJ6), EXTI9_5Interrupt => (gpioj, PJ7), EXTI9_5Interrupt => (gpioj, PJ8), EXTI9_5Interrupt => (gpioj, PJ9), EXTI15_10Interrupt => (gpioj, PJ10), EXTI15_10Interrupt => (gpioj, PJ11), EXTI15_10Interrupt => (gpioj, PJ12), EXTI15_10Interrupt => (gpioj, PJ13), EXTI15_10Interrupt => (gpioj, PJ14), EXTI15_10Interrupt => (gpioj, PJ15), } #[cfg(any( feature = "stm32f427", feature = "stm32f429", feature = "stm32f437", feature = "stm32f439", feature = "stm32f469", feature = "stm32f479" ))] exti! { EXTI0Interrupt => (gpiok, PK0), EXTI1Interrupt => (gpiok, PK1), EXTI2Interrupt => (gpiok, PK2), EXTI3Interrupt => (gpiok, PK3), EXTI4Interrupt => (gpiok, PK4), EXTI9_5Interrupt => (gpiok, PK5), EXTI9_5Interrupt => (gpiok, PK6), EXTI9_5Interrupt => (gpiok, PK7), }