27 int serial_init(struct serial_if *sif, const char *argv[])  in serial_init()  argument
55     sif->port = port;  in serial_init()
56     sif->console = false;  in serial_init()
63 	sif->console = true;  in serial_init()
78     sif->old.lcr = inb(port + LCR);  in serial_init()
79     sif->old.mcr = inb(port + MCR);  in serial_init()
80     sif->old.iir = inb(port + IIR);  in serial_init()
84     sif->old.dll = inb(port + DLL);  in serial_init()
85     sif->old.dlm = inb(port + DLM);  in serial_init()
95     sif->old.ier = inb(port + IER);  in serial_init()
105 	serial_cleanup(sif);  in serial_init()
120 void serial_write(struct serial_if *sif, const void *data, size_t n)  in serial_write()  argument
122     uint16_t port = sif->port;  in serial_write()
135 void serial_read(struct serial_if *sif, void *data, size_t n)  in serial_read()  argument
137     uint16_t port = sif->port;  in serial_read()
150 void serial_cleanup(struct serial_if *sif)  in serial_cleanup()  argument
152     uint16_t port = sif->port;  in serial_cleanup()
156     outb(sif->old.dll, port + DLL);  in serial_cleanup()
157     outb(sif->old.dlm, port + DLM);  in serial_cleanup()
159     outb(sif->old.lcr & 0x7f, port + LCR);  in serial_cleanup()
161     outb(sif->old.mcr, port + MCR);  in serial_cleanup()
162     outb(sif->old.ier, port + IER);  in serial_cleanup()
163     if (sif->old.iir < 0xc0)  in serial_cleanup()
167     if (sif->console)  in serial_cleanup()