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rp/pio: add funcsel values to PioInstance

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makes code setting funcsels easier to read and should make it easier to
hook up more pio blocks, should they ever appear
This commit is contained in:
pennae 2023-04-25 21:55:33 +02:00
parent 8e22d57447
commit 47ae9b7981
1 changed files with 4 additions and 11 deletions
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15
embassy-rp/src/pio.rs
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@ -959,17 +959,7 @@ pub trait PioCommon: sealed::PioCommon + Sized {
fn make_pio_pin(&self, pin: impl Pin) -> PioPin<Self::Pio> {
unsafe {
pin.io().ctrl().write(|w| {
w.set_funcsel(
if Self::Pio::PIO_NO == 1 {
pac::io::vals::Gpio0ctrlFuncsel::PIO1_0
} else {
// PIO == 0
pac::io::vals::Gpio0ctrlFuncsel::PIO0_0
}
.0,
);
});
pin.io().ctrl().write(|w| w.set_funcsel(Self::Pio::FUNCSEL.0));
}
PioPin {
pin_bank: pin.pin_bank(),
@ -1031,6 +1021,7 @@ mod sealed {
pub trait PioInstance {
const PIO_NO: u8;
const PIO: &'static crate::pac::pio::Pio;
const FUNCSEL: crate::pac::io::vals::Gpio0ctrlFuncsel;
}
pub trait PioCommon {
@ -1059,12 +1050,14 @@ pub trait PioInstance: sealed::PioInstance + Unpin {}
impl sealed::PioInstance for PioInstanceBase<0> {
const PIO_NO: u8 = 0;
const PIO: &'static pac::pio::Pio = &pac::PIO0;
const FUNCSEL: pac::io::vals::Gpio0ctrlFuncsel = pac::io::vals::Gpio0ctrlFuncsel::PIO0_0;
}
impl PioInstance for PioInstanceBase<0> {}
impl sealed::PioInstance for PioInstanceBase<1> {
const PIO_NO: u8 = 1;
const PIO: &'static pac::pio::Pio = &pac::PIO1;
const FUNCSEL: pac::io::vals::Gpio0ctrlFuncsel = pac::io::vals::Gpio0ctrlFuncsel::PIO1_0;
}
impl PioInstance for PioInstanceBase<1> {}