89 lines
2.3 KiB
Rust
89 lines
2.3 KiB
Rust
extern crate avr_mcu;
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mod gen;
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use avr_mcu::*;
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use std::fs::{self, File};
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use std::io;
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use std::io::prelude::*;
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use std::path::{Path, PathBuf};
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fn src_path() -> PathBuf {
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Path::new(env!("CARGO_MANIFEST_DIR")).join("src")
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}
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fn cores_path() -> PathBuf {
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src_path().join("cores")
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}
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fn core_module_name(mcu: &Mcu) -> String {
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mcu.device.name.to_lowercase().to_owned()
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}
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fn main() {
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if !cores_path().exists() {
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fs::create_dir_all(&cores_path()).expect("could not create cores directory");
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}
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let current_mcu = avr_mcu::current::mcu()
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.expect("no target cpu specified");
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generate_config_module().unwrap();
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generate_cores(&[current_mcu]).unwrap();
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}
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fn generate_cores(mcus: &[Mcu]) -> Result<(), io::Error> {
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for mcu in mcus {
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generate_core_module(mcu).expect("failed to generate mcu core");
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}
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generate_cores_mod_rs(mcus)
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}
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fn generate_config_module() -> Result<(), io::Error> {
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let path = src_path().join("config.rs");
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let mut f = File::create(&path)?;
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let clock = env!("AVR_CPU_FREQUENCY");
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writeln!(f, "pub const CPU_FREQUENCY: u32 = {};", clock)?;
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Ok(())
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}
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fn generate_core_module(mcu: &Mcu) -> Result<(), io::Error> {
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let path = cores_path().join(format!("{}.rs", core_module_name(mcu)));
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let mut file = File::create(&path)?;
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write_core_module(mcu, &mut file)
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}
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fn generate_cores_mod_rs(mcus: &[Mcu]) -> Result<(), io::Error> {
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let path = cores_path().join("mod.rs");
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let mut w = File::create(&path)?;
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writeln!(w, "//! Cores")?;
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writeln!(w)?;
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for mcu in mcus {
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let module_name = core_module_name(mcu);
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writeln!(w, "/// The {}.", mcu.device.name)?;
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writeln!(w, "pub mod {};", module_name)?;
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writeln!(w, "#[cfg(all(target_arch = \"avr\", target_cpu = \"{}\"))]", module_name)?;
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writeln!(w, "pub use self::{} as current;", module_name)?;
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}
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writeln!(w)
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}
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fn write_core_module(mcu: &Mcu, w: &mut Write) -> Result<(), io::Error> {
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writeln!(w, "//! Core for {}.", mcu.device.name)?;
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writeln!(w)?;
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writeln!(w, "use {{Mask, Bitset, Register}};")?;
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writeln!(w, "use modules;")?;
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writeln!(w)?;
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gen::write_registers(mcu, w)?;
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gen::write_pins(mcu, w)?;
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gen::write_spi_modules(mcu, w)?;
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gen::write_usarts(mcu, w)?;
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gen::write_timers(mcu, w)?;
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writeln!(w)
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}
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