550da471be
The idea behind OptionalPin has a few problems: - you need to impl the signal traits for NoPin which is a bit weird https://github.com/embassy-rs/embassy/blob/master/embassy-stm32/src/dcmi.rs#L413-L416 - you can pass any combination of set/unset pins, which needs checking at runtime https://github.com/embassy-rs/embassy/blob/master/embassy-stm32/src/dcmi.rs#L130 The replacement is to do multiple `new` constructors for each combination of pins you want to take.
48 lines
1.2 KiB
Rust
48 lines
1.2 KiB
Rust
#![macro_use]
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#[cfg_attr(dac_v1, path = "v1.rs")]
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#[cfg_attr(dac_v2, path = "v2.rs")]
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mod _version;
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use crate::peripherals;
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pub use _version::*;
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pub(crate) mod sealed {
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pub trait Instance {
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fn regs() -> &'static crate::pac::dac::Dac;
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}
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pub trait DacPin<T: Instance, const C: u8>: crate::gpio::Pin {}
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}
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pub trait Instance: sealed::Instance + 'static {}
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pub trait DacPin<T: Instance, const C: u8>: sealed::DacPin<T, C> + 'static {}
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crate::pac::peripherals!(
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(dac, $inst:ident) => {
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impl crate::dac::sealed::Instance for peripherals::$inst {
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fn regs() -> &'static crate::pac::dac::Dac {
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&crate::pac::$inst
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}
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}
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impl crate::dac::Instance for peripherals::$inst {}
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};
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);
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crate::pac::peripheral_pins!(
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($inst:ident, dac, DAC, $pin:ident, OUT1) => {
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impl DacPin<peripherals::$inst, 1> for peripherals::$pin {}
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impl sealed::DacPin<peripherals::$inst, 1> for peripherals::$pin {
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}
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};
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($inst:ident, dac, DAC, $pin:ident, OUT2) => {
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impl DacPin<peripherals::$inst, 2> for peripherals::$pin {}
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impl sealed::DacPin<peripherals::$inst, 2> for peripherals::$pin {
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}
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};
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);
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