99 lines
3.1 KiB
Rust
99 lines
3.1 KiB
Rust
use std::env;
|
|
use std::fs;
|
|
use std::path::PathBuf;
|
|
|
|
fn main() {
|
|
let chip_name = env::vars_os()
|
|
.map(|(a, _)| a.to_string_lossy().to_string())
|
|
.find(|x| x.starts_with("CARGO_FEATURE_STM32"))
|
|
.expect("No stm32xx Cargo feature enabled")
|
|
.strip_prefix("CARGO_FEATURE_")
|
|
.unwrap()
|
|
.to_ascii_lowercase();
|
|
|
|
struct Peripheral {
|
|
kind: String,
|
|
name: String,
|
|
}
|
|
|
|
let mut peripherals: Vec<Peripheral> = Vec::new();
|
|
stm32_metapac::peripherals!(
|
|
($kind:ident, $name:ident) => {
|
|
peripherals.push(Peripheral{
|
|
kind: stringify!($kind).to_string(),
|
|
name: stringify!($name).to_string(),
|
|
});
|
|
};
|
|
);
|
|
|
|
let mut singletons: Vec<String> = Vec::new();
|
|
for p in peripherals {
|
|
match p.kind.as_str() {
|
|
// Generate singletons per pin, not per port
|
|
"gpio" => {
|
|
println!("{}", p.name);
|
|
let port_letter = p.name.strip_prefix("GPIO").unwrap();
|
|
for pin_num in 0..16 {
|
|
singletons.push(format!("P{}{}", port_letter, pin_num));
|
|
}
|
|
}
|
|
|
|
// No singleton for these, the HAL handles them specially.
|
|
"exti" => {}
|
|
|
|
// We *shouldn't* have singletons for these, but the HAL currently requires
|
|
// singletons, for using with RccPeripheral to enable/disable clocks to them.
|
|
//"rcc" => {}
|
|
//"dbgmcu" => {}
|
|
//"syscfg" => {}
|
|
//"dma" => {}
|
|
//"bdma" => {}
|
|
//"dmamux" => {}
|
|
|
|
// For other peripherals, one singleton per peri
|
|
_ => singletons.push(p.name.clone()),
|
|
}
|
|
}
|
|
|
|
// One singleton per EXTI line
|
|
for pin_num in 0..16 {
|
|
singletons.push(format!("EXTI{}", pin_num));
|
|
}
|
|
|
|
// One singleton per DMA channel
|
|
stm32_metapac::dma_channels! {
|
|
($channel_peri:ident, $dma_peri:ident, $version:ident, $channel_num:expr, $ignore:tt) => {
|
|
singletons.push(stringify!($channel_peri).to_string());
|
|
};
|
|
}
|
|
|
|
let out_dir = &PathBuf::from(env::var_os("OUT_DIR").unwrap());
|
|
let out_file = out_dir.join("generated.rs").to_string_lossy().to_string();
|
|
fs::write(
|
|
out_file,
|
|
format!(
|
|
"embassy_hal_common::peripherals!({});",
|
|
singletons.join(",")
|
|
),
|
|
)
|
|
.unwrap();
|
|
|
|
stm32_metapac::peripheral_versions!(
|
|
($peri:ident, $version:ident) => {
|
|
println!("cargo:rustc-cfg={}", stringify!($peri));
|
|
println!("cargo:rustc-cfg={}_{}", stringify!($peri), stringify!($version));
|
|
};
|
|
);
|
|
|
|
let mut chip_and_core = chip_name.split('_');
|
|
let chip = chip_and_core.next().expect("Unexpected stm32xx feature");
|
|
|
|
if let Some(core) = chip_and_core.next() {
|
|
println!("cargo:rustc-cfg={}_{}", &chip[..(chip.len() - 2)], core);
|
|
} else {
|
|
println!("cargo:rustc-cfg={}", &chip[..(chip.len() - 2)]);
|
|
}
|
|
|
|
println!("cargo:rerun-if-changed=build.rs");
|
|
println!("cargo:rerun-if-changed=gen.py");
|
|
}
|