66 lines
1.9 KiB
Rust
66 lines
1.9 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/vorago-reb1/src/branch/main/examples/blinky-button-irq.rs)
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//! - [Button Blinky with IRQs and RTIC](https://egit.irs.uni-stuttgart.de/rust/vorago-reb1/src/branch/main/examples/blinky-button-rtic.rs)
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use va108xx_hal::{
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gpio::{FilterClkSel, FilterType, InputFloating, InterruptEdge, InterruptLevel, Pin, PA11},
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pac,
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prelude::*,
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utility::IrqCfg,
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};
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pub struct Button {
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button: Pin<PA11, InputFloating>,
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}
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impl Button {
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pub fn new(pin: Pin<PA11, InputFloating>) -> Button {
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Button { button: pin }
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}
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pub fn pressed(&self) -> bool {
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self.button.is_low().ok().unwrap()
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}
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pub fn released(&self) -> bool {
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self.button.is_high().ok().unwrap()
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}
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/// Configures an IRQ on edge.
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pub fn edge_irq(
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mut self,
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edge_type: InterruptEdge,
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irq_cfg: IrqCfg,
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syscfg: Option<&mut pac::SYSCONFIG>,
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irqsel: Option<&mut pac::IRQSEL>,
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) -> Self {
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self.button = self
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.button
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.interrupt_edge(edge_type, irq_cfg, syscfg, irqsel);
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self
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}
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/// Configures an IRQ on level.
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pub fn level_irq(
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mut self,
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level: InterruptLevel,
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irq_cfg: IrqCfg,
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syscfg: Option<&mut pac::SYSCONFIG>,
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irqsel: Option<&mut pac::IRQSEL>,
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) -> Self {
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self.button = self.button.interrupt_level(level, irq_cfg, syscfg, irqsel);
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self
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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 filter_type(mut self, filter: FilterType, clksel: FilterClkSel) -> Self {
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self.button = self.button.filter_type(filter, clksel);
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self
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}
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}
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