max/embassy
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Merge pull request #1715 from pennae/rp-dormant-input

Browse Source 
rp: add dormant-wake functionality for Input
This commit is contained in:
Dario Nieuwenhuis 2023-08-03 17:30:07 +00:00 committed by GitHub
commit a40daa923b
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 61 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

61
embassy-rp/src/gpio.rs
View File

@ -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<T> {
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<T> {
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);
});
}
}