diff --git a/embassy-rp/src/lib.rs b/embassy-rp/src/lib.rs index 697f4308..d69d12a3 100644 --- a/embassy-rp/src/lib.rs +++ b/embassy-rp/src/lib.rs @@ -156,6 +156,7 @@ pub fn init(_config: config::Config) -> Peripherals { #[cfg(feature = "time-driver")] timer::init(); dma::init(); + pio::init(); } peripherals diff --git a/embassy-rp/src/pio.rs b/embassy-rp/src/pio.rs index f0d550d9..00a7aa37 100644 --- a/embassy-rp/src/pio.rs +++ b/embassy-rp/src/pio.rs @@ -79,6 +79,20 @@ unsafe fn PIO1_IRQ_0() { pac::PIO1.irqs(0).inte().write_clear(|m| m.0 = ints); } +pub(crate) unsafe fn init() { + let irq = interrupt::PIO0_IRQ_0::steal(); + irq.disable(); + irq.set_priority(interrupt::Priority::P3); + pac::PIO0.irqs(0).inte().write(|m| m.0 = 0); + irq.enable(); + + let irq = interrupt::PIO1_IRQ_0::steal(); + irq.disable(); + irq.set_priority(interrupt::Priority::P3); + pac::PIO1.irqs(0).inte().write(|m| m.0 = 0); + irq.enable(); +} + /// Future that waits for TX-FIFO to become writable #[must_use = "futures do nothing unless you `.await` or poll them"] pub struct FifoOutFuture<'a, PIO: PioInstance, SM: PioStateMachine + Unpin> { @@ -89,14 +103,6 @@ pub struct FifoOutFuture<'a, PIO: PioInstance, SM: PioStateMachine + Unpin> { impl<'a, PIO: PioInstance, SM: PioStateMachine + Unpin> FifoOutFuture<'a, PIO, SM> { pub fn new(sm: &'a mut SM, value: u32) -> Self { - unsafe { - critical_section::with(|_| { - let irq = PIO::Irq::steal(); - irq.set_priority(interrupt::Priority::P3); - - irq.enable(); - }); - } FifoOutFuture { sm, pio: PhantomData::default(), @@ -115,12 +121,9 @@ impl<'d, PIO: PioInstance, SM: PioStateMachine + Unpin> Future for FifoOutFuture } else { WAKERS[PIO::PIO_NO as usize].fifo_out()[SM::Sm::SM_NO as usize].register(cx.waker()); unsafe { - let irq = PIO::Irq::steal(); - irq.disable(); PIOS[PIO::PIO_NO as usize].irqs(0).inte().write_set(|m| { m.0 = TXNFULL_MASK << SM::Sm::SM_NO; }); - irq.enable(); } // debug!("Pending"); Poll::Pending @@ -147,14 +150,6 @@ pub struct FifoInFuture<'a, PIO: PioInstance, SM: PioStateMachine> { impl<'a, PIO: PioInstance, SM: PioStateMachine> FifoInFuture<'a, PIO, SM> { pub fn new(sm: &'a mut SM) -> Self { - unsafe { - critical_section::with(|_| { - let irq = PIO::Irq::steal(); - irq.set_priority(interrupt::Priority::P3); - - irq.enable(); - }); - } FifoInFuture { sm, pio: PhantomData::default(), @@ -171,12 +166,9 @@ impl<'d, PIO: PioInstance, SM: PioStateMachine> Future for FifoInFuture<'d, PIO, } else { WAKERS[PIO::PIO_NO as usize].fifo_in()[SM::Sm::SM_NO as usize].register(cx.waker()); unsafe { - let irq = PIO::Irq::steal(); - irq.disable(); PIOS[PIO::PIO_NO as usize].irqs(0).inte().write_set(|m| { m.0 = RXNEMPTY_MASK << SM::Sm::SM_NO; }); - irq.enable(); } //debug!("Pending"); Poll::Pending @@ -203,14 +195,6 @@ pub struct IrqFuture { impl<'a, PIO: PioInstance> IrqFuture { pub fn new(irq_no: u8) -> Self { - unsafe { - critical_section::with(|_| { - let irq = PIO::Irq::steal(); - irq.set_priority(interrupt::Priority::P3); - - irq.enable(); - }); - } IrqFuture { pio: PhantomData::default(), irq_no, @@ -240,12 +224,9 @@ impl<'d, PIO: PioInstance> Future for IrqFuture { WAKERS[PIO::PIO_NO as usize].irq()[self.irq_no as usize].register(cx.waker()); unsafe { - let irq = PIO::Irq::steal(); - irq.disable(); PIOS[PIO::PIO_NO as usize].irqs(0).inte().write_set(|m| { m.0 = SMIRQ_MASK << self.irq_no; }); - irq.enable(); } Poll::Pending } @@ -1171,17 +1152,14 @@ pub struct PioInstanceBase {} pub trait PioInstance: Unpin { const PIO_NO: u8; - type Irq: Interrupt; } impl PioInstance for PioInstanceBase<0> { const PIO_NO: u8 = 0; - type Irq = interrupt::PIO0_IRQ_0; } impl PioInstance for PioInstanceBase<1> { const PIO_NO: u8 = 1; - type Irq = interrupt::PIO1_IRQ_0; } pub type Pio0 = PioInstanceBase<0>;