63 lines
2.0 KiB
Rust
63 lines
2.0 KiB
Rust
//! # API for the REB1 button
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//!
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//! ## Examples
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//!
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//! - [Button Blinky with IRQs](https://egit.irs.uni-stuttgart.de/rust/va108xx-rs/src/branch/main/vorago-reb1/examples/blinky-button-irq.rs)
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//! - [Button Blinky with IRQs and RTIC](https://egit.irs.uni-stuttgart.de/rust/va108xx-rs/src/branch/main/vorago-reb1/examples/blinky-button-rtic.rs)
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use embedded_hal::digital::InputPin;
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use va108xx_hal::{
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gpio::{FilterClkSel, FilterType, InputFloating, InterruptEdge, InterruptLevel, Pin, PA11},
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pac, InterruptConfig,
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};
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#[derive(Debug)]
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pub struct Button(pub Pin<PA11, InputFloating>);
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impl Button {
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pub fn new(pin: Pin<PA11, InputFloating>) -> Button {
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Button(pin)
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}
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#[inline]
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pub fn pressed(&mut self) -> bool {
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self.0.is_low().ok().unwrap()
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}
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#[inline]
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pub fn released(&mut self) -> bool {
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self.0.is_high().ok().unwrap()
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}
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/// Configures an IRQ on edge.
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pub fn configure_edge_interrupt(
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&mut self,
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edge_type: InterruptEdge,
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irq_cfg: InterruptConfig,
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syscfg: Option<&mut pac::Sysconfig>,
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irqsel: Option<&mut pac::Irqsel>,
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) {
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self.0
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.configure_edge_interrupt(edge_type, irq_cfg, syscfg, irqsel);
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}
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/// Configures an IRQ on level.
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pub fn configure_level_interrupt(
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&mut self,
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level: InterruptLevel,
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irq_cfg: InterruptConfig,
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syscfg: Option<&mut pac::Sysconfig>,
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irqsel: Option<&mut pac::Irqsel>,
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) {
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self.0
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.configure_level_interrupt(level, irq_cfg, syscfg, irqsel);
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}
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/// Configures a filter on the button. This can be useful for debouncing the switch.
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///
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/// Please note that you still have to set a clock divisor yourself using the
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/// [`va108xx_hal::clock::set_clk_div_register`] function in order for this to work.
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pub fn configure_filter_type(&mut self, filter: FilterType, clksel: FilterClkSel) {
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self.0.configure_filter_type(filter, clksel);
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}
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}
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