diff --git a/embassy-rp/src/gpio.rs b/embassy-rp/src/gpio.rs index 73e89352..ad9d4262 100644 --- a/embassy-rp/src/gpio.rs +++ b/embassy-rp/src/gpio.rs @@ -75,6 +75,15 @@ pub enum Bank { Qspi = 1, } +#[derive(Debug, Eq, PartialEq, Copy, Clone, Default)] +#[cfg_attr(feature = "defmt", derive(defmt::Format))] +pub struct DormantWakeConfig { + pub edge_high: bool, + pub edge_low: bool, + pub level_high: bool, + pub level_low: bool, +} + pub struct Input<'d, T: Pin> { pin: Flex<'d, T>, } @@ -128,6 +137,11 @@ impl<'d, T: Pin> Input<'d, T> { pub async fn wait_for_any_edge(&mut self) { self.pin.wait_for_any_edge().await; } + + #[inline] + pub fn dormant_wake(&mut self, cfg: DormantWakeConfig) -> DormantWake { + self.pin.dormant_wake(cfg) + } } /// Interrupt trigger levels. @@ -639,15 +653,62 @@ impl<'d, T: Pin> Flex<'d, T> { pub async fn wait_for_any_edge(&mut self) { InputFuture::new(&mut self.pin, InterruptTrigger::AnyEdge).await; } + + #[inline] + pub fn dormant_wake(&mut self, cfg: DormantWakeConfig) -> DormantWake { + let idx = self.pin._pin() as usize; + self.pin.io().intr(idx / 8).write(|w| { + w.set_edge_high(idx % 8, cfg.edge_high); + w.set_edge_low(idx % 8, cfg.edge_low); + }); + self.pin.io().int_dormant_wake().inte(idx / 8).write_set(|w| { + w.set_edge_high(idx % 8, cfg.edge_high); + w.set_edge_low(idx % 8, cfg.edge_low); + w.set_level_high(idx % 8, cfg.level_high); + w.set_level_low(idx % 8, cfg.level_low); + }); + DormantWake { + pin: self.pin.reborrow(), + cfg, + } + } } impl<'d, T: Pin> Drop for Flex<'d, T> { #[inline] fn drop(&mut self) { + let idx = self.pin._pin() as usize; self.pin.pad_ctrl().write(|_| {}); self.pin.gpio().ctrl().write(|w| { w.set_funcsel(pac::io::vals::Gpio0ctrlFuncsel::NULL as _); }); + self.pin.io().int_dormant_wake().inte(idx / 8).write_clear(|w| { + w.set_edge_high(idx % 8, true); + w.set_edge_low(idx % 8, true); + w.set_level_high(idx % 8, true); + w.set_level_low(idx % 8, true); + }); + } +} + +pub struct DormantWake<'w, T: Pin> { + pin: PeripheralRef<'w, T>, + cfg: DormantWakeConfig, +} + +impl<'w, T: Pin> Drop for DormantWake<'w, T> { + fn drop(&mut self) { + let idx = self.pin._pin() as usize; + self.pin.io().intr(idx / 8).write(|w| { + w.set_edge_high(idx % 8, self.cfg.edge_high); + w.set_edge_low(idx % 8, self.cfg.edge_low); + }); + self.pin.io().int_dormant_wake().inte(idx / 8).write_clear(|w| { + w.set_edge_high(idx % 8, true); + w.set_edge_low(idx % 8, true); + w.set_level_high(idx % 8, true); + w.set_level_low(idx % 8, true); + }); } }