ok

2023-03-10 00:25:08 +00:00
commit e491435dea
60 changed files with 4542 additions and 0 deletions
@@ -0,0 +1,46 @@
+
+use uart_16550::SerialPort;
+use spin::Mutex;
+use lazy_static::lazy_static;
+
+
+lazy_static! {
+	pub static ref SERIAL1: Mutex<SerialPort> = {
+		let mut serial_port = unsafe {
+			SerialPort::new(0x3F8)
+		};
+		serial_port.init();
+		Mutex::new(serial_port)
+	};
+}
+
+#[doc(hidden)]
+pub fn _print(args: core::fmt::Arguments) {
+	use core::fmt::Write;
+	use x86_64::instructions::interrupts;
+
+	interrupts::without_interrupts(|| {
+		SERIAL1.lock().write_fmt(args).expect("unable to print to serial!")
+	})
+
+}
+
+#[macro_export]
+macro_rules! serial_print {
+	($($arg:tt)*) => {
+		$crate::kernel::serial::_print(format_args!($($arg)*));
+	};
+}
+
+#[macro_export]
+macro_rules! serial_println {
+	() => (serial_print!("\n"));
+	($fmt:expr) => ($crate::serial_print!(concat!($fmt, "\n")));
+	($fmt:expr, $($arg:tt)*) => (
+		$crate::serial_print!(
+			concat!($fmt, "\n"), $($arg)*
+		)
+	);
+}
+
+