ariel_os_rp/spi/
mod.rs

1//! Provides support for the SPI communication bus.
2
3#[doc(alias = "master")]
4pub mod main;
5
6use ariel_os_embassy_common::spi::Mode;
7use embassy_rp::spi::{Phase, Polarity};
8
9fn from_mode(mode: Mode) -> (Polarity, Phase) {
10    match mode {
11        Mode::Mode0 => (Polarity::IdleLow, Phase::CaptureOnFirstTransition),
12        Mode::Mode1 => (Polarity::IdleLow, Phase::CaptureOnSecondTransition),
13        Mode::Mode2 => (Polarity::IdleHigh, Phase::CaptureOnFirstTransition),
14        Mode::Mode3 => (Polarity::IdleHigh, Phase::CaptureOnSecondTransition),
15    }
16}
17
18#[doc(hidden)]
19pub fn init(peripherals: &mut crate::OptionalPeripherals) {
20    // Take all SPI peripherals and do nothing with them.
21    cfg_if::cfg_if! {
22        if #[cfg(context = "rp")] {
23            let _ = peripherals.SPI0.take().unwrap();
24            let _ = peripherals.SPI1.take().unwrap();
25        } else {
26            compile_error!("this RP chip is not supported");
27        }
28    }
29}
ariel_os_rp/spi/mod.rs

ariel_os_rp/spi/
mod.rs
