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specialix: restore driver using new break functionality

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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>
This commit is contained in:
Alan Cox 2008-07-22 11:19:05 +01:00 committed by Linus Torvalds
parent 4a56122297
commit faa7612c09
2 changed files with 12 additions and 28 deletions
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2
drivers/char/Kconfig
View file

@ -288,7 +288,7 @@ config RISCOM8
config SPECIALIX config SPECIALIX
tristate "Specialix IO8+ card support" tristate "Specialix IO8+ card support"
depends on SERIAL_NONSTANDARD && BROKEN depends on SERIAL_NONSTANDARD
help help
This is a driver for the Specialix IO8+ multiport card (both the This is a driver for the Specialix IO8+ multiport card (both the
ISA and the PCI version) which gives you many serial ports. You ISA and the PCI version) which gives you many serial ports. You

38
drivers/char/specialix.c
View file

@ -1818,13 +1818,15 @@ static int sx_tiocmset(struct tty_struct *tty, struct file *file,
} }
static void sx_send_break(struct specialix_port *port, static int sx_send_break(struct tty_struct *tty, int length)
unsigned long length)
{ {
struct specialix_port *port = (struct specialix_port *)tty->driver_data;
struct specialix_board *bp = port_Board(port); struct specialix_board *bp = port_Board(port);
unsigned long flags; unsigned long flags;
func_enter(); func_enter();
if (length == 0 || length == -1)
return -EOPNOTSUPP;
spin_lock_irqsave(&port->lock, flags); spin_lock_irqsave(&port->lock, flags);
port->break_length = SPECIALIX_TPS / HZ * length; port->break_length = SPECIALIX_TPS / HZ * length;
@ -1843,6 +1845,7 @@ static void sx_send_break(struct specialix_port *port,
sx_wait_CCR(bp); sx_wait_CCR(bp);
func_exit(); 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) unsigned int cmd, unsigned long arg)
{ {
struct specialix_port *port = (struct specialix_port *)tty->driver_data; struct specialix_port *port = (struct specialix_port *)tty->driver_data;
int retval;
void __user *argp = (void __user *)arg; void __user *argp = (void __user *)arg;
func_enter(); func_enter();
@ -1940,34 +1942,14 @@ static int sx_ioctl(struct tty_struct *tty, struct file *filp,
} }
switch (cmd) { 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: case TIOCGSERIAL:
func_exit(); func_exit();
return sx_get_serial_info(port, argp); return sx_get_serial_info(port, argp);
case TIOCSSERIAL: case TIOCSSERIAL:
func_exit(); func_exit();
return sx_set_serial_info(port, argp); return sx_set_serial_info(port, argp);
default: default:
func_exit(); func_exit();
return -ENOIOCTLCMD; return -ENOIOCTLCMD;
} }
func_exit(); func_exit();
@ -2190,6 +2172,7 @@ static const struct tty_operations sx_ops = {
.hangup = sx_hangup, .hangup = sx_hangup,
.tiocmget = sx_tiocmget, .tiocmget = sx_tiocmget,
.tiocmset = sx_tiocmset, .tiocmset = sx_tiocmset,
.break_ctl = sx_send_break,
}; };
static int sx_init_drivers(void) static int sx_init_drivers(void)
@ -2216,7 +2199,8 @@ static int sx_init_drivers(void)
B9600 | CS8 | CREAD | HUPCL | CLOCAL; B9600 | CS8 | CREAD | HUPCL | CLOCAL;
specialix_driver->init_termios.c_ispeed = 9600; specialix_driver->init_termios.c_ispeed = 9600;
specialix_driver->init_termios.c_ospeed = 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); tty_set_operations(specialix_driver, &sx_ops);
error = tty_register_driver(specialix_driver); error = tty_register_driver(specialix_driver);