forked from AbleOS/ableos
47 lines
1.3 KiB
Rust
47 lines
1.3 KiB
Rust
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//! Logging (as in terms of console / serial output)
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use core::fmt::Write;
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use limine::{TerminalRequest, TerminalResponse};
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use spin::{Lazy, Mutex};
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use uart_16550::SerialPort;
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static SERIAL_CONSOLE: Mutex<SerialPort> = Mutex::new(unsafe { SerialPort::new(0x3f8) });
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static TERMINAL_LOGGER: Lazy<Mutex<TermLogger>> = Lazy::new(|| Mutex::new(TermLogger::new()));
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pub fn init() {
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SERIAL_CONSOLE.lock().init();
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Lazy::force(&TERMINAL_LOGGER);
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}
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pub fn log(args: core::fmt::Arguments<'_>) -> core::fmt::Result {
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x86_64::instructions::interrupts::without_interrupts(|| {
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TERMINAL_LOGGER.lock().write_fmt(args)?;
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SERIAL_CONSOLE.lock().write_fmt(args)
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})
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}
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struct TermLogger(&'static TerminalResponse);
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unsafe impl Send for TermLogger {}
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impl TermLogger {
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pub fn new() -> Self {
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static TERM_REQ: TerminalRequest = TerminalRequest::new(0);
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Self(
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TERM_REQ
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.get_response()
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.get()
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.expect("failed to get terminal response"),
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)
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}
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}
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impl Write for TermLogger {
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fn write_str(&mut self, s: &str) -> core::fmt::Result {
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if let (Some(w), ts) = (self.0.write(), self.0.terminals()) {
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for term in ts {
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w(term, s);
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}
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}
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Ok(())
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}
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}
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