12 static int serial_iobase = 0x3f8;
13 static int serial_inited = 0;
20                 lsr = inb(serial_iobase + 0x05);  in serial_outb()
21         } while (!(lsr & 0x20));  in serial_outb()
23         outb(ch, serial_iobase + 0x00);  in serial_outb()
39         lcr = inb(serial_iobase + 0x03);  in serial_init()
40         lcr |= 0x80;  in serial_init()
41         outb(lcr, serial_iobase + 0x03);  in serial_init()
44         outb(0x01, serial_iobase + 0x00);  in serial_init()
45         outb(0x00, serial_iobase + 0x01);  in serial_init()
48         lcr = inb(serial_iobase + 0x03);  in serial_init()
49         lcr &= ~0x80;  in serial_init()
50         outb(lcr, serial_iobase + 0x03);  in serial_init()
53         outb(0x00, serial_iobase + 0x01);  in serial_init()
55         outb(0x03, serial_iobase + 0x03);  in serial_init()
57         outb(0x00, serial_iobase + 0x02);  in serial_init()
59         outb(0x03, serial_iobase + 0x04);  in serial_init()
72         for (i = 0; i < len; i++) {  in print_serial()
76         asm volatile ("rep/outsb" : "+S"(buf), "+c"(len) : "d"(0xf1));  in print_serial()
94         outl(code, 0xf4);  in exit()
97         for (i = 0; i < 8; i++) {  in exit()
98                 outb(shutdown_str[i], 0x8900);  in exit()
101         asm volatile("out %0, %1" : : "a"(code), "d"((short)0xf4));  in exit()