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Small adjustment to 'set_as_af' interface

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Small adjustment to 'set_as_af' interface - v2
This commit is contained in:
Mariusz Ryndzionek
2021-09-24 18:39:07 +02:00
parent b6fc19182b
commit d371298a27
7 changed files with 45 additions and 25 deletions
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21
embassy-stm32/src/gpio.rs
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@ -55,6 +55,14 @@ impl From<Speed> for vals::Ospeedr {
}
}
/// Type settings
#[derive(Debug)]
#[cfg_attr(feature = "defmt", derive(defmt::Format))]
pub enum OutputType {
PushPull,
OpenDrain,
}
/// GPIO input driver.
pub struct Input<'d, T: Pin> {
pub(crate) pin: T,
@ -299,7 +307,7 @@ pub(crate) mod sealed {
}
}
unsafe fn set_as_af(&self, af_num: u8) {
unsafe fn set_as_af(&self, af_num: u8, af_type: OutputType) {
let pin = self._pin() as usize;
let block = self.block();
block
@ -308,6 +316,17 @@ pub(crate) mod sealed {
block
.afr(pin / 8)
.modify(|w| w.set_afr(pin % 8, vals::Afr(af_num)));
match af_type {
OutputType::PushPull => {
block.otyper().modify(|w| w.set_ot(pin, vals::Ot::PUSHPULL))
}
OutputType::OpenDrain => block
.otyper()
.modify(|w| w.set_ot(pin, vals::Ot::OPENDRAIN)),
}
block
.pupdr()
.modify(|w| w.set_pupdr(pin, vals::Pupdr::FLOATING));
}
unsafe fn set_as_analog(&self) {