static void scc_unthrottle (struct tty_struct * tty)
{
struct scc_port *port = tty->driver_data;
unsigned long flags;
SCC_ACCESS_INIT(port);
if (tty->termios->c_cflag & CRTSCTS) {
local_irq_save(flags);
SCCmod(TX_CTRL_REG, 0xff, TCR_RTS);
local_irq_restore(flags);
}
if (I_IXOFF(tty))
scc_send_xchar(tty, START_CHAR(tty));
}
static void scc_throttle (struct tty_struct * tty)
{
struct scc_port *port = (struct scc_port *)tty->driver_data;
unsigned long flags;
SCC_ACCESS_INIT(port);
if (tty->termios->c_cflag & CRTSCTS) {
save_flags(flags);
cli();
SCCmod(TX_CTRL_REG, ~TCR_RTS, 0);
restore_flags(flags);
}
if (I_IXOFF(tty))
scc_send_xchar(tty, STOP_CHAR(tty));
}