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path: root/drivers/char/ser_a2232.c
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Diffstat (limited to 'drivers/char/ser_a2232.c')
-rw-r--r--drivers/char/ser_a2232.c23
1 files changed, 12 insertions, 11 deletions
diff --git a/drivers/char/ser_a2232.c b/drivers/char/ser_a2232.c
index 7b0c35207d9..33872a219df 100644
--- a/drivers/char/ser_a2232.c
+++ b/drivers/char/ser_a2232.c
@@ -122,7 +122,7 @@ static void a2232_disable_tx_interrupts(void *ptr);
static void a2232_enable_tx_interrupts(void *ptr);
static void a2232_disable_rx_interrupts(void *ptr);
static void a2232_enable_rx_interrupts(void *ptr);
-static int a2232_get_CD(void *ptr);
+static int a2232_carrier_raised(struct tty_port *port);
static void a2232_shutdown_port(void *ptr);
static int a2232_set_real_termios(void *ptr);
static int a2232_chars_in_buffer(void *ptr);
@@ -148,7 +148,6 @@ static struct real_driver a2232_real_driver = {
a2232_enable_tx_interrupts,
a2232_disable_rx_interrupts,
a2232_enable_rx_interrupts,
- a2232_get_CD,
a2232_shutdown_port,
a2232_set_real_termios,
a2232_chars_in_buffer,
@@ -260,9 +259,10 @@ static void a2232_enable_rx_interrupts(void *ptr)
port->disable_rx = 0;
}
-static int a2232_get_CD(void *ptr)
+static int a2232_carrier_raised(struct tty_port *port)
{
- return ((struct a2232_port *) ptr)->cd_status;
+ struct a2232_port *ap = container_of(port, struct a2232_port, gs.port);
+ return ap->cd_status;
}
static void a2232_shutdown_port(void *ptr)
@@ -460,14 +460,14 @@ static void a2232_throttle(struct tty_struct *tty)
if switched on. So the only thing we can do at this
layer here is not taking any characters out of the
A2232 buffer any more. */
- struct a2232_port *port = (struct a2232_port *) tty->driver_data;
+ struct a2232_port *port = tty->driver_data;
port->throttle_input = -1;
}
static void a2232_unthrottle(struct tty_struct *tty)
{
/* Unthrottle: dual to "throttle()" above. */
- struct a2232_port *port = (struct a2232_port *) tty->driver_data;
+ struct a2232_port *port = tty->driver_data;
port->throttle_input = 0;
}
@@ -638,6 +638,10 @@ int ch, err, n, p;
return IRQ_HANDLED;
}
+static const struct tty_port_operations a2232_port_ops = {
+ .carrier_raised = a2232_carrier_raised,
+};
+
static void a2232_init_portstructs(void)
{
struct a2232_port *port;
@@ -645,6 +649,8 @@ static void a2232_init_portstructs(void)
for (i = 0; i < MAX_A2232_BOARDS*NUMLINES; i++) {
port = a2232_ports + i;
+ tty_port_init(&port->gs.port);
+ port->gs.port.ops = &a2232_port_ops;
port->which_a2232 = i/NUMLINES;
port->which_port_on_a2232 = i%NUMLINES;
port->disable_rx = port->throttle_input = port->cd_status = 0;
@@ -652,11 +658,6 @@ static void a2232_init_portstructs(void)
port->gs.close_delay = HZ/2;
port->gs.closing_wait = 30 * HZ;
port->gs.rd = &a2232_real_driver;
-#ifdef NEW_WRITE_LOCKING
- mutex_init(&(port->gs.port_write_mutex));
-#endif
- init_waitqueue_head(&port->gs.port.open_wait);
- init_waitqueue_head(&port->gs.port.close_wait);
}
}