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Merge pull request #2735 from eZioPan/stm32-timer-api-leak

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stm32: fix timer api leaking
This commit is contained in:
Dario Nieuwenhuis 2024-04-04 23:04:38 +00:00 committed by GitHub
commit 9d0b682b2d
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GPG Key ID: B5690EEEBB952194
2 changed files with 115 additions and 65 deletions
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45
embassy-stm32/src/time_driver.rs
View File

@ -15,9 +15,7 @@ use crate::pac::timer::vals;
use crate::rcc::SealedRccPeripheral;
#[cfg(feature = "low-power")]
use crate::rtc::Rtc;
#[cfg(any(time_driver_tim1, time_driver_tim8, time_driver_tim20))]
use crate::timer::AdvancedInstance1Channel;
use crate::timer::CoreInstance;
use crate::timer::{CoreInstance, GeneralInstance1Channel};
use crate::{interrupt, peripherals};
// NOTE regarding ALARM_COUNT:
@ -69,7 +67,7 @@ type T = peripherals::TIM23;
type T = peripherals::TIM24;
foreach_interrupt! {
(TIM1, timer, $block:ident, UP, $irq:ident) => {
(TIM1, timer, $block:ident, CC, $irq:ident) => {
#[cfg(time_driver_tim1)]
#[cfg(feature = "rt")]
#[interrupt]
@ -85,7 +83,7 @@ foreach_interrupt! {
DRIVER.on_interrupt()
}
};
(TIM2, timer, $block:ident, UP, $irq:ident) => {
(TIM2, timer, $block:ident, CC, $irq:ident) => {
#[cfg(time_driver_tim2)]
#[cfg(feature = "rt")]
#[interrupt]
@ -93,7 +91,7 @@ foreach_interrupt! {
DRIVER.on_interrupt()
}
};
(TIM3, timer, $block:ident, UP, $irq:ident) => {
(TIM3, timer, $block:ident, CC, $irq:ident) => {
#[cfg(time_driver_tim3)]
#[cfg(feature = "rt")]
#[interrupt]
@ -101,7 +99,7 @@ foreach_interrupt! {
DRIVER.on_interrupt()
}
};
(TIM4, timer, $block:ident, UP, $irq:ident) => {
(TIM4, timer, $block:ident, CC, $irq:ident) => {
#[cfg(time_driver_tim4)]
#[cfg(feature = "rt")]
#[interrupt]
@ -109,7 +107,7 @@ foreach_interrupt! {
DRIVER.on_interrupt()
}
};
(TIM5, timer, $block:ident, UP, $irq:ident) => {
(TIM5, timer, $block:ident, CC, $irq:ident) => {
#[cfg(time_driver_tim5)]
#[cfg(feature = "rt")]
#[interrupt]
@ -117,7 +115,7 @@ foreach_interrupt! {
DRIVER.on_interrupt()
}
};
(TIM8, timer, $block:ident, UP, $irq:ident) => {
(TIM8, timer, $block:ident, CC, $irq:ident) => {
#[cfg(time_driver_tim8)]
#[cfg(feature = "rt")]
#[interrupt]
@ -133,7 +131,7 @@ foreach_interrupt! {
DRIVER.on_interrupt()
}
};
(TIM9, timer, $block:ident, UP, $irq:ident) => {
(TIM9, timer, $block:ident, CC, $irq:ident) => {
#[cfg(time_driver_tim9)]
#[cfg(feature = "rt")]
#[interrupt]
@ -141,7 +139,7 @@ foreach_interrupt! {
DRIVER.on_interrupt()
}
};
(TIM12, timer, $block:ident, UP, $irq:ident) => {
(TIM12, timer, $block:ident, CC, $irq:ident) => {
#[cfg(time_driver_tim12)]
#[cfg(feature = "rt")]
#[interrupt]
@ -149,7 +147,7 @@ foreach_interrupt! {
DRIVER.on_interrupt()
}
};
(TIM15, timer, $block:ident, UP, $irq:ident) => {
(TIM15, timer, $block:ident, CC, $irq:ident) => {
#[cfg(time_driver_tim15)]
#[cfg(feature = "rt")]
#[interrupt]
@ -157,7 +155,7 @@ foreach_interrupt! {
DRIVER.on_interrupt()
}
};
(TIM20, timer, $block:ident, UP, $irq:ident) => {
(TIM20, timer, $block:ident, CC, $irq:ident) => {
#[cfg(time_driver_tim20)]
#[cfg(feature = "rt")]
#[interrupt]
@ -173,7 +171,7 @@ foreach_interrupt! {
DRIVER.on_interrupt()
}
};
(TIM21, timer, $block:ident, UP, $irq:ident) => {
(TIM21, timer, $block:ident, CC, $irq:ident) => {
#[cfg(time_driver_tim21)]
#[cfg(feature = "rt")]
#[interrupt]
@ -181,7 +179,7 @@ foreach_interrupt! {
DRIVER.on_interrupt()
}
};
(TIM22, timer, $block:ident, UP, $irq:ident) => {
(TIM22, timer, $block:ident, CC, $irq:ident) => {
#[cfg(time_driver_tim22)]
#[cfg(feature = "rt")]
#[interrupt]
@ -189,7 +187,7 @@ foreach_interrupt! {
DRIVER.on_interrupt()
}
};
(TIM23, timer, $block:ident, UP, $irq:ident) => {
(TIM23, timer, $block:ident, CC, $irq:ident) => {
#[cfg(time_driver_tim23)]
#[cfg(feature = "rt")]
#[interrupt]
@ -197,7 +195,7 @@ foreach_interrupt! {
DRIVER.on_interrupt()
}
};
(TIM24, timer, $block:ident, UP, $irq:ident) => {
(TIM24, timer, $block:ident, CC, $irq:ident) => {
#[cfg(time_driver_tim24)]
#[cfg(feature = "rt")]
#[interrupt]
@ -263,6 +261,7 @@ pub(crate) struct RtcDriver {
rtc: Mutex<CriticalSectionRawMutex, Cell<Option<&'static Rtc>>>,
}
#[allow(clippy::declare_interior_mutable_const)]
const ALARM_STATE_NEW: AlarmState = AlarmState::new();
embassy_time_driver::time_driver_impl!(static DRIVER: RtcDriver = RtcDriver {
@ -307,16 +306,8 @@ impl RtcDriver {
w.set_ccie(0, true);
});
<T as CoreInstance>::Interrupt::unpend();
unsafe { <T as CoreInstance>::Interrupt::enable() };
#[cfg(any(time_driver_tim1, time_driver_tim8, time_driver_tim20))]
{
<T as AdvancedInstance1Channel>::CaptureCompareInterrupt::unpend();
unsafe {
<T as AdvancedInstance1Channel>::CaptureCompareInterrupt::enable();
}
}
<T as GeneralInstance1Channel>::CaptureCompareInterrupt::unpend();
unsafe { <T as GeneralInstance1Channel>::CaptureCompareInterrupt::enable() };
r.cr1().modify(|w| w.set_cen(true));
}

135
embassy-stm32/src/timer/mod.rs
View File

@ -47,8 +47,8 @@ pub enum TimerBits {
/// Core timer instance.
pub trait CoreInstance: RccPeripheral + 'static {
/// Interrupt for this timer.
type Interrupt: interrupt::typelevel::Interrupt;
/// Update Interrupt for this timer.
type UpdateInterrupt: interrupt::typelevel::Interrupt;
/// Amount of bits this timer has.
const BITS: TimerBits;
@ -64,29 +64,46 @@ pub trait BasicNoCr2Instance: CoreInstance {}
pub trait BasicInstance: BasicNoCr2Instance {}
/// General-purpose 16-bit timer with 1 channel instance.
pub trait GeneralInstance1Channel: CoreInstance {}
pub trait GeneralInstance1Channel: CoreInstance {
/// Capture compare interrupt for this timer.
type CaptureCompareInterrupt: interrupt::typelevel::Interrupt;
}
/// General-purpose 16-bit timer with 2 channels instance.
pub trait GeneralInstance2Channel: GeneralInstance1Channel {}
pub trait GeneralInstance2Channel: GeneralInstance1Channel {
/// Trigger event interrupt for this timer.
type TriggerInterrupt: interrupt::typelevel::Interrupt;
}
/// General-purpose 16-bit timer with 4 channels instance.
pub trait GeneralInstance4Channel: BasicInstance + GeneralInstance2Channel {
// This trait add *extra* methods to GeneralInstance4Channel,
// that GeneralInstance4Channel doesn't use, but the "AdvancedInstance"s need.
// And it's a private trait, so it's content won't leak to outer namespace.
//
// If you want to add a new method to it, please leave a detail comment to explain it.
trait General4ChBlankSealed {
// SimplePwm<'d, T> is implemented for T: GeneralInstance4Channel
// Advanced timers implement this trait, but the output needs to be
// enabled explicitly.
// To support general-purpose and advanced timers, this function is added
// here defaulting to noop and overwritten for advanced timers.
/// Enable timer outputs.
//
// Enable timer outputs.
fn enable_outputs(&self) {}
}
/// General-purpose 16-bit timer with 4 channels instance.
#[allow(private_bounds)]
pub trait GeneralInstance4Channel: BasicInstance + GeneralInstance2Channel + General4ChBlankSealed {}
/// General-purpose 32-bit timer with 4 channels instance.
pub trait GeneralInstance32bit4Channel: GeneralInstance4Channel {}
/// Advanced 16-bit timer with 1 channel instance.
pub trait AdvancedInstance1Channel: BasicNoCr2Instance + GeneralInstance1Channel {
/// Capture compare interrupt for this timer.
type CaptureCompareInterrupt: interrupt::typelevel::Interrupt;
/// Communication interrupt for this timer.
type CommunicationInterrupt: interrupt::typelevel::Interrupt;
/// Break input interrupt for this timer.
type BreakInputInterrupt: interrupt::typelevel::Interrupt;
}
/// Advanced 16-bit timer with 2 channels instance.
@ -127,7 +144,7 @@ dma_trait!(Ch4Dma, GeneralInstance4Channel);
macro_rules! impl_core_timer {
($inst:ident, $bits:expr) => {
impl CoreInstance for crate::peripherals::$inst {
type Interrupt = crate::_generated::peripheral_interrupts::$inst::UP;
type UpdateInterrupt = crate::_generated::peripheral_interrupts::$inst::UP;
const BITS: TimerBits = $bits;
@ -138,6 +155,49 @@ macro_rules! impl_core_timer {
};
}
#[allow(unused)]
macro_rules! impl_general_1ch {
($inst:ident) => {
impl GeneralInstance1Channel for crate::peripherals::$inst {
type CaptureCompareInterrupt = crate::_generated::peripheral_interrupts::$inst::CC;
}
};
}
#[allow(unused)]
macro_rules! impl_general_2ch {
($inst:ident) => {
impl GeneralInstance2Channel for crate::peripherals::$inst {
type TriggerInterrupt = crate::_generated::peripheral_interrupts::$inst::TRG;
}
};
}
#[allow(unused)]
macro_rules! impl_advanced_1ch {
($inst:ident) => {
impl AdvancedInstance1Channel for crate::peripherals::$inst {
type CommunicationInterrupt = crate::_generated::peripheral_interrupts::$inst::COM;
type BreakInputInterrupt = crate::_generated::peripheral_interrupts::$inst::BRK;
}
};
}
// This macro only apply to "AdvancedInstance(s)",
// not "GeneralInstance4Channel" itself.
#[allow(unused)]
macro_rules! impl_general_4ch_blank_sealed {
($inst:ident) => {
impl General4ChBlankSealed for crate::peripherals::$inst {
fn enable_outputs(&self) {
unsafe { crate::pac::timer::Tim1chCmp::from_ptr(Self::regs()) }
.bdtr()
.modify(|w| w.set_moe(true));
}
}
};
}
foreach_interrupt! {
($inst:ident, timer, TIM_BASIC, UP, $irq:ident) => {
impl_core_timer!($inst, TimerBits::Bits16);
@ -149,47 +209,52 @@ foreach_interrupt! {
impl_core_timer!($inst, TimerBits::Bits16);
impl BasicNoCr2Instance for crate::peripherals::$inst {}
impl BasicInstance for crate::peripherals::$inst {}
impl GeneralInstance1Channel for crate::peripherals::$inst {}
impl GeneralInstance2Channel for crate::peripherals::$inst {}
impl_general_1ch!($inst);
impl_general_2ch!($inst);
impl GeneralInstance4Channel for crate::peripherals::$inst {}
impl General4ChBlankSealed for crate::peripherals::$inst {}
};
($inst:ident, timer, TIM_2CH, UP, $irq:ident) => {
impl_core_timer!($inst, TimerBits::Bits16);
impl BasicNoCr2Instance for crate::peripherals::$inst {}
impl BasicInstance for crate::peripherals::$inst {}
impl GeneralInstance1Channel for crate::peripherals::$inst {}
impl GeneralInstance2Channel for crate::peripherals::$inst {}
impl_general_1ch!($inst);
impl_general_2ch!($inst);
impl GeneralInstance4Channel for crate::peripherals::$inst {}
impl General4ChBlankSealed for crate::peripherals::$inst {}
};
($inst:ident, timer, TIM_GP16, UP, $irq:ident) => {
impl_core_timer!($inst, TimerBits::Bits16);
impl BasicNoCr2Instance for crate::peripherals::$inst {}
impl BasicInstance for crate::peripherals::$inst {}
impl GeneralInstance1Channel for crate::peripherals::$inst {}
impl GeneralInstance2Channel for crate::peripherals::$inst {}
impl_general_1ch!($inst);
impl_general_2ch!($inst);
impl GeneralInstance4Channel for crate::peripherals::$inst {}
impl General4ChBlankSealed for crate::peripherals::$inst {}
};
($inst:ident, timer, TIM_GP32, UP, $irq:ident) => {
impl_core_timer!($inst, TimerBits::Bits32);
impl BasicNoCr2Instance for crate::peripherals::$inst {}
impl BasicInstance for crate::peripherals::$inst {}
impl GeneralInstance1Channel for crate::peripherals::$inst {}
impl GeneralInstance2Channel for crate::peripherals::$inst {}
impl_general_1ch!($inst);
impl_general_2ch!($inst);
impl GeneralInstance4Channel for crate::peripherals::$inst {}
impl GeneralInstance32bit4Channel for crate::peripherals::$inst {}
impl General4ChBlankSealed for crate::peripherals::$inst {}
};
($inst:ident, timer, TIM_1CH_CMP, UP, $irq:ident) => {
impl_core_timer!($inst, TimerBits::Bits16);
impl BasicNoCr2Instance for crate::peripherals::$inst {}
impl BasicInstance for crate::peripherals::$inst {}
impl GeneralInstance1Channel for crate::peripherals::$inst {}
impl GeneralInstance2Channel for crate::peripherals::$inst {}
impl GeneralInstance4Channel for crate::peripherals::$inst { fn enable_outputs(&self) { set_moe::<Self>() }}
impl AdvancedInstance1Channel for crate::peripherals::$inst { type CaptureCompareInterrupt = crate::_generated::peripheral_interrupts::$inst::CC; }
impl_general_1ch!($inst);
impl_general_2ch!($inst);
impl GeneralInstance4Channel for crate::peripherals::$inst {}
impl_general_4ch_blank_sealed!($inst);
impl_advanced_1ch!($inst);
impl AdvancedInstance2Channel for crate::peripherals::$inst {}
impl AdvancedInstance4Channel for crate::peripherals::$inst {}
};
@ -198,10 +263,11 @@ foreach_interrupt! {
impl_core_timer!($inst, TimerBits::Bits16);
impl BasicNoCr2Instance for crate::peripherals::$inst {}
impl BasicInstance for crate::peripherals::$inst {}
impl GeneralInstance1Channel for crate::peripherals::$inst {}
impl GeneralInstance2Channel for crate::peripherals::$inst {}
impl GeneralInstance4Channel for crate::peripherals::$inst { fn enable_outputs(&self) { set_moe::<Self>() }}
impl AdvancedInstance1Channel for crate::peripherals::$inst { type CaptureCompareInterrupt = crate::_generated::peripheral_interrupts::$inst::CC; }
impl_general_1ch!($inst);
impl_general_2ch!($inst);
impl GeneralInstance4Channel for crate::peripherals::$inst {}
impl_general_4ch_blank_sealed!($inst);
impl_advanced_1ch!($inst);
impl AdvancedInstance2Channel for crate::peripherals::$inst {}
impl AdvancedInstance4Channel for crate::peripherals::$inst {}
};
@ -210,19 +276,12 @@ foreach_interrupt! {
impl_core_timer!($inst, TimerBits::Bits16);
impl BasicNoCr2Instance for crate::peripherals::$inst {}
impl BasicInstance for crate::peripherals::$inst {}
impl GeneralInstance1Channel for crate::peripherals::$inst {}
impl GeneralInstance2Channel for crate::peripherals::$inst {}
impl GeneralInstance4Channel for crate::peripherals::$inst { fn enable_outputs(&self) { set_moe::<Self>() }}
impl AdvancedInstance1Channel for crate::peripherals::$inst { type CaptureCompareInterrupt = crate::_generated::peripheral_interrupts::$inst::CC; }
impl_general_1ch!($inst);
impl_general_2ch!($inst);
impl GeneralInstance4Channel for crate::peripherals::$inst {}
impl_general_4ch_blank_sealed!($inst);
impl_advanced_1ch!($inst);
impl AdvancedInstance2Channel for crate::peripherals::$inst {}
impl AdvancedInstance4Channel for crate::peripherals::$inst {}
};
}
#[cfg(not(stm32l0))]
#[allow(unused)]
fn set_moe<T: GeneralInstance4Channel>() {
unsafe { crate::pac::timer::Tim1chCmp::from_ptr(T::regs()) }
.bdtr()
.modify(|w| w.set_moe(true));
}