diff options
Diffstat (limited to 'drivers/char/specialix.c')
| -rw-r--r-- | drivers/char/specialix.c | 38 |
1 files changed, 11 insertions, 27 deletions
diff --git a/drivers/char/specialix.c b/drivers/char/specialix.c index f3184a8a75d..242fd46fda2 100644 --- a/drivers/char/specialix.c +++ b/drivers/char/specialix.c @@ -1818,13 +1818,15 @@ static int sx_tiocmset(struct tty_struct *tty, struct file *file, } -static void sx_send_break(struct specialix_port *port, - unsigned long length) +static int sx_send_break(struct tty_struct *tty, int length) { + struct specialix_port *port = (struct specialix_port *)tty->driver_data; struct specialix_board *bp = port_Board(port); unsigned long flags; func_enter(); + if (length == 0 || length == -1) + return -EOPNOTSUPP; spin_lock_irqsave(&port->lock, flags); port->break_length = SPECIALIX_TPS / HZ * length; @@ -1843,6 +1845,7 @@ static void sx_send_break(struct specialix_port *port, sx_wait_CCR(bp); func_exit(); + return 0; } @@ -1929,7 +1932,6 @@ static int sx_ioctl(struct tty_struct *tty, struct file *filp, unsigned int cmd, unsigned long arg) { struct specialix_port *port = (struct specialix_port *)tty->driver_data; - int retval; void __user *argp = (void __user *)arg; func_enter(); @@ -1940,34 +1942,14 @@ static int sx_ioctl(struct tty_struct *tty, struct file *filp, } switch (cmd) { - case TCSBRK: /* SVID version: non-zero arg --> no break */ - retval = tty_check_change(tty); - if (retval) { - func_exit(); - return retval; - } - tty_wait_until_sent(tty, 0); - if (!arg) - sx_send_break(port, HZ/4); /* 1/4 second */ - return 0; - case TCSBRKP: /* support for POSIX tcsendbreak() */ - retval = tty_check_change(tty); - if (retval) { - func_exit(); - return retval; - } - tty_wait_until_sent(tty, 0); - sx_send_break(port, arg ? arg*(HZ/10) : HZ/4); - func_exit(); - return 0; case TIOCGSERIAL: - func_exit(); + func_exit(); return sx_get_serial_info(port, argp); case TIOCSSERIAL: - func_exit(); + func_exit(); return sx_set_serial_info(port, argp); default: - func_exit(); + func_exit(); return -ENOIOCTLCMD; } func_exit(); @@ -2190,6 +2172,7 @@ static const struct tty_operations sx_ops = { .hangup = sx_hangup, .tiocmget = sx_tiocmget, .tiocmset = sx_tiocmset, + .break_ctl = sx_send_break, }; static int sx_init_drivers(void) @@ -2216,7 +2199,8 @@ static int sx_init_drivers(void) B9600 | CS8 | CREAD | HUPCL | CLOCAL; specialix_driver->init_termios.c_ispeed = 9600; specialix_driver->init_termios.c_ospeed = 9600; - specialix_driver->flags = TTY_DRIVER_REAL_RAW; + specialix_driver->flags = TTY_DRIVER_REAL_RAW | + TTY_DRIVER_HARDWARE_BREAK; tty_set_operations(specialix_driver, &sx_ops); error = tty_register_driver(specialix_driver); |