mg24-hal 0.1.0

HAL for Silicon Labs MG24 microcontroller
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use core::marker::PhantomData;

pub struct Unknown;
pub struct Output;
pub struct Input;

pub struct Pin<const PORT: char, const PIN: u8, MODE = Unknown> {
    _mode: PhantomData<MODE>,
}

impl<const PORT: char, const PIN: u8> Pin<PORT, PIN, Unknown> {
    pub(crate) fn new() -> Self {
        Self { _mode: PhantomData }
    }

    pub fn into_mode<NEWMODE>(self) -> Pin<PORT, PIN, NEWMODE> {
        Pin { _mode: PhantomData }
    }
}

pub const fn port_num(port: char) -> u32 {
    match port {
        'A' => 0,
        'B' => 1,
        'C' => 2,
        'D' => 3,
        _ => panic!("invalid port"),
    }
}