Function rt_serial_init

bsp/x86/drivers/serial.c:25–34

* This function initializes serial */

 * This function initializes serial
 */
void rt_serial_init(void)
{
    outb(COM1+3,0x80);  /* set DLAB of line control reg */
    outb(COM1,0x0c);    /* LS of divisor (48 -> 2400 bps */
    outb(COM1+1,0x00);  /* MS of divisor */
    outb(COM1+3,0x03);  /* reset DLAB */
    outb(COM1+4,0x0b);  /* set DTR,RTS, OUT_2 */
    outb(COM1+1,0x0d);  /* enable all intrs but writes */
    inb(COM1);          /* read data port to reset things (?) */
}

/**
 * This function read a character from serial without interrupt enable mode