specialix: restore driver using new break functionality
Use the hardware break support on the specialix driver Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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4a56122297
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@ -288,7 +288,7 @@ config RISCOM8
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config SPECIALIX
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tristate "Specialix IO8+ card support"
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depends on SERIAL_NONSTANDARD && BROKEN
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depends on SERIAL_NONSTANDARD
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help
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This is a driver for the Specialix IO8+ multiport card (both the
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ISA and the PCI version) which gives you many serial ports. You
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@ -1818,13 +1818,15 @@ static int sx_tiocmset(struct tty_struct *tty, struct file *file,
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}
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static void sx_send_break(struct specialix_port *port,
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unsigned long length)
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static int sx_send_break(struct tty_struct *tty, int length)
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{
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struct specialix_port *port = (struct specialix_port *)tty->driver_data;
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struct specialix_board *bp = port_Board(port);
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unsigned long flags;
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func_enter();
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if (length == 0 || length == -1)
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return -EOPNOTSUPP;
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spin_lock_irqsave(&port->lock, flags);
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port->break_length = SPECIALIX_TPS / HZ * length;
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@ -1843,6 +1845,7 @@ static void sx_send_break(struct specialix_port *port,
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sx_wait_CCR(bp);
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func_exit();
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return 0;
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}
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@ -1929,7 +1932,6 @@ static int sx_ioctl(struct tty_struct *tty, struct file *filp,
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unsigned int cmd, unsigned long arg)
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{
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struct specialix_port *port = (struct specialix_port *)tty->driver_data;
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int retval;
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void __user *argp = (void __user *)arg;
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func_enter();
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@ -1940,26 +1942,6 @@ static int sx_ioctl(struct tty_struct *tty, struct file *filp,
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}
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switch (cmd) {
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case TCSBRK: /* SVID version: non-zero arg --> no break */
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retval = tty_check_change(tty);
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if (retval) {
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func_exit();
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return retval;
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}
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tty_wait_until_sent(tty, 0);
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if (!arg)
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sx_send_break(port, HZ/4); /* 1/4 second */
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return 0;
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case TCSBRKP: /* support for POSIX tcsendbreak() */
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retval = tty_check_change(tty);
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if (retval) {
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func_exit();
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return retval;
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}
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tty_wait_until_sent(tty, 0);
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sx_send_break(port, arg ? arg*(HZ/10) : HZ/4);
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func_exit();
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return 0;
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case TIOCGSERIAL:
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func_exit();
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return sx_get_serial_info(port, argp);
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@ -2190,6 +2172,7 @@ static const struct tty_operations sx_ops = {
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.hangup = sx_hangup,
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.tiocmget = sx_tiocmget,
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.tiocmset = sx_tiocmset,
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.break_ctl = sx_send_break,
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};
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static int sx_init_drivers(void)
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@ -2216,7 +2199,8 @@ static int sx_init_drivers(void)
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B9600 | CS8 | CREAD | HUPCL | CLOCAL;
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specialix_driver->init_termios.c_ispeed = 9600;
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specialix_driver->init_termios.c_ospeed = 9600;
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specialix_driver->flags = TTY_DRIVER_REAL_RAW;
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specialix_driver->flags = TTY_DRIVER_REAL_RAW |
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TTY_DRIVER_HARDWARE_BREAK;
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tty_set_operations(specialix_driver, &sx_ops);
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error = tty_register_driver(specialix_driver);
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