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|
use spin::Mutex;
use uart_16550::SerialPort;
/*lazy_static! {
pub static ref SERIAL1: Mutex<SerialPort> = {
let mut serial_port = unsafe { SerialPort::new(0x3F8) };
serial_port.init();
Mutex::new(serial_port)
};
}*/
const SERIAL_IO_PORT: u16 = 0x3F8;
static CONNECTION: Mutex<Serial> = Mutex::new(Serial {
initialized: false,
port: unsafe { SerialPort::new(SERIAL_IO_PORT) },
});
struct Serial {
pub initialized: bool,
pub port: SerialPort,
}
pub struct SerialStream {}
impl SerialStream {
pub fn new() -> Self {
SerialStream {}
}
}
impl core::fmt::Write for SerialStream {
fn write_str(&mut self, s: &str) -> core::fmt::Result {
let mut guard = CONNECTION.lock();
if !guard.initialized {
unsafe {
guard.port.init();
}
guard.initialized = true;
}
guard.port.write_str(s)
}
}
|
