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path: root/drivers/isdn/gigaset/interface.c
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Diffstat (limited to 'drivers/isdn/gigaset/interface.c')
-rw-r--r--drivers/isdn/gigaset/interface.c60
1 files changed, 18 insertions, 42 deletions
diff --git a/drivers/isdn/gigaset/interface.c b/drivers/isdn/gigaset/interface.c
index 67abf3ff45e8..e2b539675b66 100644
--- a/drivers/isdn/gigaset/interface.c
+++ b/drivers/isdn/gigaset/interface.c
@@ -112,36 +112,6 @@ static int if_config(struct cardstate *cs, int *arg)
}
/*** the terminal driver ***/
-/* stolen from usbserial and some other tty drivers */
-
-static int if_open(struct tty_struct *tty, struct file *filp);
-static void if_close(struct tty_struct *tty, struct file *filp);
-static int if_ioctl(struct tty_struct *tty,
- unsigned int cmd, unsigned long arg);
-static int if_write_room(struct tty_struct *tty);
-static int if_chars_in_buffer(struct tty_struct *tty);
-static void if_throttle(struct tty_struct *tty);
-static void if_unthrottle(struct tty_struct *tty);
-static void if_set_termios(struct tty_struct *tty, struct ktermios *old);
-static int if_tiocmget(struct tty_struct *tty);
-static int if_tiocmset(struct tty_struct *tty,
- unsigned int set, unsigned int clear);
-static int if_write(struct tty_struct *tty,
- const unsigned char *buf, int count);
-
-static const struct tty_operations if_ops = {
- .open = if_open,
- .close = if_close,
- .ioctl = if_ioctl,
- .write = if_write,
- .write_room = if_write_room,
- .chars_in_buffer = if_chars_in_buffer,
- .set_termios = if_set_termios,
- .throttle = if_throttle,
- .unthrottle = if_unthrottle,
- .tiocmget = if_tiocmget,
- .tiocmset = if_tiocmset,
-};
static int if_open(struct tty_struct *tty, struct file *filp)
{
@@ -164,7 +134,7 @@ static int if_open(struct tty_struct *tty, struct file *filp)
if (cs->port.count == 1) {
tty_port_tty_set(&cs->port, tty);
- tty->low_latency = 1;
+ cs->port.low_latency = 1;
}
mutex_unlock(&cs->mutex);
@@ -355,7 +325,7 @@ done:
static int if_write_room(struct tty_struct *tty)
{
struct cardstate *cs = tty->driver_data;
- int retval = -ENODEV;
+ int retval;
gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
@@ -498,6 +468,20 @@ out:
mutex_unlock(&cs->mutex);
}
+static const struct tty_operations if_ops = {
+ .open = if_open,
+ .close = if_close,
+ .ioctl = if_ioctl,
+ .write = if_write,
+ .write_room = if_write_room,
+ .chars_in_buffer = if_chars_in_buffer,
+ .set_termios = if_set_termios,
+ .throttle = if_throttle,
+ .unthrottle = if_unthrottle,
+ .tiocmget = if_tiocmget,
+ .tiocmset = if_tiocmset,
+};
+
/* wakeup tasklet for the write operation */
static void if_wake(unsigned long data)
@@ -562,16 +546,8 @@ void gigaset_if_free(struct cardstate *cs)
void gigaset_if_receive(struct cardstate *cs,
unsigned char *buffer, size_t len)
{
- struct tty_struct *tty = tty_port_tty_get(&cs->port);
-
- if (tty == NULL) {
- gig_dbg(DEBUG_IF, "receive on closed device");
- return;
- }
-
- tty_insert_flip_string(tty, buffer, len);
- tty_flip_buffer_push(tty);
- tty_kref_put(tty);
+ tty_insert_flip_string(&cs->port, buffer, len);
+ tty_flip_buffer_push(&cs->port);
}
EXPORT_SYMBOL_GPL(gigaset_if_receive);