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low-power: add basic support for stm32u0

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This commit is contained in:
Christian Enderle 2024-11-21 19:44:48 +01:00
parent 29934237a5
commit a49289ce7b
4 changed files with 16 additions and 5 deletions
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11
embassy-stm32/src/low_power.rs
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@ -80,6 +80,17 @@ foreach_interrupt! {
}; };
} }
// only relevant for stm32u0
foreach_interrupt! {
(RTC, rtc, $block:ident, TAMP, $irq:ident) => {
#[interrupt]
#[allow(non_snake_case)]
unsafe fn $irq() {
EXECUTOR.as_mut().unwrap().on_wakeup_irq();
}
};
}
#[allow(dead_code)] #[allow(dead_code)]
pub(crate) unsafe fn on_wakeup_irq() { pub(crate) unsafe fn on_wakeup_irq() {
EXECUTOR.as_mut().unwrap().on_wakeup_irq(); EXECUTOR.as_mut().unwrap().on_wakeup_irq();

6
embassy-stm32/src/rtc/low_power.rs
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@ -65,7 +65,7 @@ pub(crate) enum WakeupPrescaler {
Div16 = 16, Div16 = 16,
} }
#[cfg(any(stm32f4, stm32l0, stm32g4, stm32l4, stm32l5, stm32wb, stm32h5, stm32g0, stm32u5))] #[cfg(any(stm32f4, stm32l0, stm32g4, stm32l4, stm32l5, stm32wb, stm32h5, stm32g0, stm32u5, stm32u0))]
impl From<WakeupPrescaler> for crate::pac::rtc::vals::Wucksel { impl From<WakeupPrescaler> for crate::pac::rtc::vals::Wucksel {
fn from(val: WakeupPrescaler) -> Self { fn from(val: WakeupPrescaler) -> Self {
use crate::pac::rtc::vals::Wucksel; use crate::pac::rtc::vals::Wucksel;
@ -79,7 +79,7 @@ impl From<WakeupPrescaler> for crate::pac::rtc::vals::Wucksel {
} }
} }
#[cfg(any(stm32f4, stm32l0, stm32g4, stm32l4, stm32l5, stm32wb, stm32h5, stm32g0, stm32u5))] #[cfg(any(stm32f4, stm32l0, stm32g4, stm32l4, stm32l5, stm32wb, stm32h5, stm32g0, stm32u5, stm32u0))]
impl From<crate::pac::rtc::vals::Wucksel> for WakeupPrescaler { impl From<crate::pac::rtc::vals::Wucksel> for WakeupPrescaler {
fn from(val: crate::pac::rtc::vals::Wucksel) -> Self { fn from(val: crate::pac::rtc::vals::Wucksel) -> Self {
use crate::pac::rtc::vals::Wucksel; use crate::pac::rtc::vals::Wucksel;
@ -223,7 +223,7 @@ impl Rtc {
<RTC as crate::rtc::SealedInstance>::WakeupInterrupt::unpend(); <RTC as crate::rtc::SealedInstance>::WakeupInterrupt::unpend();
unsafe { <RTC as crate::rtc::SealedInstance>::WakeupInterrupt::enable() }; unsafe { <RTC as crate::rtc::SealedInstance>::WakeupInterrupt::enable() };
#[cfg(not(stm32u5))] #[cfg(not(any(stm32u5, stm32u0)))]
{ {
use crate::pac::EXTI; use crate::pac::EXTI;
EXTI.rtsr(0).modify(|w| w.set_line(RTC::EXTI_WAKEUP_LINE, true)); EXTI.rtsr(0).modify(|w| w.set_line(RTC::EXTI_WAKEUP_LINE, true));

2
embassy-stm32/src/rtc/mod.rs
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@ -285,7 +285,7 @@ trait SealedInstance {
const BACKUP_REGISTER_COUNT: usize; const BACKUP_REGISTER_COUNT: usize;
#[cfg(feature = "low-power")] #[cfg(feature = "low-power")]
#[cfg(not(stm32u5))] #[cfg(not(any(stm32u5, stm32u0)))]
const EXTI_WAKEUP_LINE: usize; const EXTI_WAKEUP_LINE: usize;
#[cfg(feature = "low-power")] #[cfg(feature = "low-power")]

2
embassy-stm32/src/rtc/v3.rs
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@ -144,7 +144,7 @@ impl SealedInstance for crate::peripherals::RTC {
cfg_if::cfg_if!( cfg_if::cfg_if!(
if #[cfg(stm32g4)] { if #[cfg(stm32g4)] {
type WakeupInterrupt = crate::interrupt::typelevel::RTC_WKUP; type WakeupInterrupt = crate::interrupt::typelevel::RTC_WKUP;
} else if #[cfg(any(stm32g0))] { } else if #[cfg(any(stm32g0, stm32u0))] {
type WakeupInterrupt = crate::interrupt::typelevel::RTC_TAMP; type WakeupInterrupt = crate::interrupt::typelevel::RTC_TAMP;
} else if #[cfg(any(stm32l5, stm32h5, stm32u5))] { } else if #[cfg(any(stm32l5, stm32h5, stm32u5))] {
type WakeupInterrupt = crate::interrupt::typelevel::RTC; type WakeupInterrupt = crate::interrupt::typelevel::RTC;