2021-08-17 16:22:47 +02:00

117 lines
3.1 KiB
Rust

#![macro_use]
macro_rules! foreach_exti_irq {
($action:ident) => {
crate::pac::interrupts!(
(EXTI0) => { $action!(EXTI0); };
(EXTI1) => { $action!(EXTI1); };
(EXTI2) => { $action!(EXTI2); };
(EXTI3) => { $action!(EXTI3); };
(EXTI4) => { $action!(EXTI4); };
(EXTI5) => { $action!(EXTI5); };
(EXTI6) => { $action!(EXTI6); };
(EXTI7) => { $action!(EXTI7); };
(EXTI8) => { $action!(EXTI8); };
(EXTI9) => { $action!(EXTI9); };
(EXTI10) => { $action!(EXTI10); };
(EXTI11) => { $action!(EXTI11); };
(EXTI12) => { $action!(EXTI12); };
(EXTI13) => { $action!(EXTI13); };
(EXTI14) => { $action!(EXTI14); };
(EXTI15) => { $action!(EXTI15); };
// plus the weird ones
(EXTI0_1) => { $action!( EXTI0_1 ); };
(EXTI15_10) => { $action!(EXTI15_10); };
(EXTI15_4) => { $action!(EXTI15_4); };
(EXTI1_0) => { $action!(EXTI1_0); };
(EXTI2_3) => { $action!(EXTI2_3); };
(EXTI2_TSC) => { $action!(EXTI2_TSC); };
(EXTI3_2) => { $action!(EXTI3_2); };
(EXTI4_15) => { $action!(EXTI4_15); };
(EXTI9_5) => { $action!(EXTI9_5); };
);
};
}
#[cfg_attr(exti_v1, path = "v1.rs")]
#[cfg_attr(exti_h7, path = "v1.rs")]
#[cfg_attr(exti_wb55, path = "v2.rs")]
#[cfg_attr(exti_wl5x, path = "v2.rs")]
mod _version;
#[allow(unused)]
pub use _version::*;
use crate::peripherals;
use embassy_hal_common::unsafe_impl_unborrow;
pub(crate) mod sealed {
pub trait Channel {}
}
pub trait Channel: sealed::Channel + Sized {
fn number(&self) -> usize;
fn degrade(self) -> AnyChannel {
AnyChannel {
number: self.number() as u8,
}
}
}
pub struct AnyChannel {
number: u8,
}
unsafe_impl_unborrow!(AnyChannel);
impl sealed::Channel for AnyChannel {}
impl Channel for AnyChannel {
fn number(&self) -> usize {
self.number as usize
}
}
macro_rules! impl_exti {
($type:ident, $number:expr) => {
impl sealed::Channel for peripherals::$type {}
impl Channel for peripherals::$type {
fn number(&self) -> usize {
$number as usize
}
}
};
}
impl_exti!(EXTI0, 0);
impl_exti!(EXTI1, 1);
impl_exti!(EXTI2, 2);
impl_exti!(EXTI3, 3);
impl_exti!(EXTI4, 4);
impl_exti!(EXTI5, 5);
impl_exti!(EXTI6, 6);
impl_exti!(EXTI7, 7);
impl_exti!(EXTI8, 8);
impl_exti!(EXTI9, 9);
impl_exti!(EXTI10, 10);
impl_exti!(EXTI11, 11);
impl_exti!(EXTI12, 12);
impl_exti!(EXTI13, 13);
impl_exti!(EXTI14, 14);
impl_exti!(EXTI15, 15);
macro_rules! enable_irq {
($e:ident) => {
crate::interrupt::$e::steal().enable();
};
}
/// safety: must be called only once
pub(crate) unsafe fn init() {
use embassy::interrupt::Interrupt;
use embassy::interrupt::InterruptExt;
foreach_exti_irq!(enable_irq);
#[cfg(not(any(rcc_wb55, rcc_wl5x)))]
<crate::peripherals::SYSCFG as crate::rcc::sealed::RccPeripheral>::enable();
}