ariel_os_esp/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::{BitOrder, Mode};
7
8fn from_mode(mode: Mode) -> esp_hal::spi::Mode {
9    match mode {
10        Mode::Mode0 => esp_hal::spi::Mode::_0,
11        Mode::Mode1 => esp_hal::spi::Mode::_1,
12        Mode::Mode2 => esp_hal::spi::Mode::_2,
13        Mode::Mode3 => esp_hal::spi::Mode::_3,
14    }
15}
16
17fn from_bit_order(bit_order: BitOrder) -> esp_hal::spi::BitOrder {
18    match bit_order {
19        BitOrder::MsbFirst => esp_hal::spi::BitOrder::MsbFirst,
20        BitOrder::LsbFirst => esp_hal::spi::BitOrder::LsbFirst,
21    }
22}
23
24#[doc(hidden)]
25pub fn init(peripherals: &mut crate::OptionalPeripherals) {
26    // Take all SPI peripherals and do nothing with them.
27    cfg_select! {
28        context = "esp32" => {
29            let _ = peripherals.SPI2.take().unwrap();
30            let _ = peripherals.SPI3.take().unwrap();
31        }
32        context = "esp32c3" => {
33            let _ = peripherals.SPI2.take().unwrap();
34        }
35        context = "esp32c6" => {
36            let _ = peripherals.SPI2.take().unwrap();
37        }
38        context = "esp32s2" => {
39            let _ = peripherals.SPI2.take().unwrap();
40            let _ = peripherals.SPI3.take().unwrap();
41        }
42        context = "esp32s3" => {
43            let _ = peripherals.SPI2.take().unwrap();
44            let _ = peripherals.SPI3.take().unwrap();
45        }
46        _ => {
47            compile_error!("this ESP32 chip is not supported");
48        }
49    }
50}
ariel_os_esp/spi/mod.rs

ariel_os_esp/spi/
mod.rs
