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path: root/drivers/usb/serial/io_ti.c
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Diffstat (limited to 'drivers/usb/serial/io_ti.c')
-rw-r--r--drivers/usb/serial/io_ti.c109
1 files changed, 58 insertions, 51 deletions
diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c
index a58822a14a87..cb4c54316cf5 100644
--- a/drivers/usb/serial/io_ti.c
+++ b/drivers/usb/serial/io_ti.c
@@ -243,9 +243,9 @@ static void edge_tty_recv(struct device *dev, struct tty_struct *tty,
static void stop_read(struct edgeport_port *edge_port);
static int restart_read(struct edgeport_port *edge_port);
-static void edge_set_termios(struct usb_serial_port *port,
- struct ktermios *old_termios);
-static void edge_send(struct usb_serial_port *port);
+static void edge_set_termios(struct tty_struct *tty,
+ struct usb_serial_port *port, struct ktermios *old_termios);
+static void edge_send(struct tty_struct *tty);
/* sysfs attributes */
static int edge_create_sysfs_attrs(struct usb_serial_port *port);
@@ -572,7 +572,7 @@ static void chase_port(struct edgeport_port *port, unsigned long timeout,
int flush)
{
int baud_rate;
- struct tty_struct *tty = port->port->tty;
+ struct tty_struct *tty = port->port->port.tty;
wait_queue_t wait;
unsigned long flags;
@@ -1554,7 +1554,7 @@ static void handle_new_msr(struct edgeport_port *edge_port, __u8 msr)
/* Save the new modem status */
edge_port->shadow_msr = msr & 0xf0;
- tty = edge_port->port->tty;
+ tty = edge_port->port->port.tty;
/* handle CTS flow control */
if (tty && C_CRTSCTS(tty)) {
if (msr & EDGEPORT_MSR_CTS) {
@@ -1587,9 +1587,8 @@ static void handle_new_lsr(struct edgeport_port *edge_port, int lsr_data,
new_lsr &= (__u8)(LSR_OVER_ERR | LSR_BREAK);
/* Place LSR data byte into Rx buffer */
- if (lsr_data && edge_port->port->tty)
- edge_tty_recv(&edge_port->port->dev, edge_port->port->tty,
- &data, 1);
+ if (lsr_data && edge_port->port->port.tty)
+ edge_tty_recv(&edge_port->port->dev, edge_port->port->port.tty, &data, 1);
/* update input line counters */
icount = &edge_port->icount;
@@ -1750,7 +1749,7 @@ static void edge_bulk_in_callback(struct urb *urb)
++data;
}
- tty = edge_port->port->tty;
+ tty = edge_port->port->port.tty;
if (tty && urb->actual_length) {
usb_serial_debug_data(debug, &edge_port->port->dev,
__func__, urb->actual_length, data);
@@ -1819,10 +1818,11 @@ static void edge_bulk_out_callback(struct urb *urb)
}
/* send any buffered data */
- edge_send(port);
+ edge_send(port->port.tty);
}
-static int edge_open(struct usb_serial_port *port, struct file *filp)
+static int edge_open(struct tty_struct *tty,
+ struct usb_serial_port *port, struct file *filp)
{
struct edgeport_port *edge_port = usb_get_serial_port_data(port);
struct edgeport_serial *edge_serial;
@@ -1838,7 +1838,8 @@ static int edge_open(struct usb_serial_port *port, struct file *filp)
if (edge_port == NULL)
return -ENODEV;
- port->tty->low_latency = low_latency;
+ if (tty)
+ tty->low_latency = low_latency;
port_number = port->number - port->serial->minor;
switch (port_number) {
@@ -1874,7 +1875,8 @@ static int edge_open(struct usb_serial_port *port, struct file *filp)
}
/* set up the port settings */
- edge_set_termios(port, port->tty->termios);
+ if (tty)
+ edge_set_termios(tty, port, port->port.tty->termios);
/* open up the port */
@@ -2000,7 +2002,8 @@ release_es_lock:
return status;
}
-static void edge_close(struct usb_serial_port *port, struct file *filp)
+static void edge_close(struct tty_struct *tty,
+ struct usb_serial_port *port, struct file *filp)
{
struct edgeport_serial *edge_serial;
struct edgeport_port *edge_port;
@@ -2048,8 +2051,8 @@ static void edge_close(struct usb_serial_port *port, struct file *filp)
dbg("%s - exited", __func__);
}
-static int edge_write(struct usb_serial_port *port, const unsigned char *data,
- int count)
+static int edge_write(struct tty_struct *tty, struct usb_serial_port *port,
+ const unsigned char *data, int count)
{
struct edgeport_port *edge_port = usb_get_serial_port_data(port);
unsigned long flags;
@@ -2070,16 +2073,16 @@ static int edge_write(struct usb_serial_port *port, const unsigned char *data,
count = edge_buf_put(edge_port->ep_out_buf, data, count);
spin_unlock_irqrestore(&edge_port->ep_lock, flags);
- edge_send(port);
+ edge_send(tty);
return count;
}
-static void edge_send(struct usb_serial_port *port)
+static void edge_send(struct tty_struct *tty)
{
+ struct usb_serial_port *port = tty->driver_data;
int count, result;
struct edgeport_port *edge_port = usb_get_serial_port_data(port);
- struct tty_struct *tty = port->tty;
unsigned long flags;
@@ -2133,8 +2136,9 @@ static void edge_send(struct usb_serial_port *port)
tty_wakeup(tty);
}
-static int edge_write_room(struct usb_serial_port *port)
+static int edge_write_room(struct tty_struct *tty)
{
+ struct usb_serial_port *port = tty->driver_data;
struct edgeport_port *edge_port = usb_get_serial_port_data(port);
int room = 0;
unsigned long flags;
@@ -2154,8 +2158,9 @@ static int edge_write_room(struct usb_serial_port *port)
return room;
}
-static int edge_chars_in_buffer(struct usb_serial_port *port)
+static int edge_chars_in_buffer(struct tty_struct *tty)
{
+ struct usb_serial_port *port = tty->driver_data;
struct edgeport_port *edge_port = usb_get_serial_port_data(port);
int chars = 0;
unsigned long flags;
@@ -2175,10 +2180,10 @@ static int edge_chars_in_buffer(struct usb_serial_port *port)
return chars;
}
-static void edge_throttle(struct usb_serial_port *port)
+static void edge_throttle(struct tty_struct *tty)
{
+ struct usb_serial_port *port = tty->driver_data;
struct edgeport_port *edge_port = usb_get_serial_port_data(port);
- struct tty_struct *tty = port->tty;
int status;
dbg("%s - port %d", __func__, port->number);
@@ -2189,11 +2194,10 @@ static void edge_throttle(struct usb_serial_port *port)
/* if we are implementing XON/XOFF, send the stop character */
if (I_IXOFF(tty)) {
unsigned char stop_char = STOP_CHAR(tty);
- status = edge_write(port, &stop_char, 1);
- if (status <= 0)
- dev_err(&port->dev,
- "%s - failed to write stop character, %d\n",
- __func__, status);
+ status = edge_write(tty, port, &stop_char, 1);
+ if (status <= 0) {
+ dev_err(&port->dev, "%s - failed to write stop character, %d\n", __func__, status);
+ }
}
/* if we are implementing RTS/CTS, stop reads */
@@ -2203,10 +2207,10 @@ static void edge_throttle(struct usb_serial_port *port)
}
-static void edge_unthrottle(struct usb_serial_port *port)
+static void edge_unthrottle(struct tty_struct *tty)
{
+ struct usb_serial_port *port = tty->driver_data;
struct edgeport_port *edge_port = usb_get_serial_port_data(port);
- struct tty_struct *tty = port->tty;
int status;
dbg("%s - port %d", __func__, port->number);
@@ -2217,11 +2221,10 @@ static void edge_unthrottle(struct usb_serial_port *port)
/* if we are implementing XON/XOFF, send the start character */
if (I_IXOFF(tty)) {
unsigned char start_char = START_CHAR(tty);
- status = edge_write(port, &start_char, 1);
- if (status <= 0)
- dev_err(&port->dev,
- "%s - failed to write start character, %d\n",
- __func__, status);
+ status = edge_write(tty, port, &start_char, 1);
+ if (status <= 0) {
+ dev_err(&port->dev, "%s - failed to write start character, %d\n", __func__, status);
+ }
}
/* if we are implementing RTS/CTS, restart reads */
/* are the Edgeport will assert the RTS line */
@@ -2271,11 +2274,10 @@ static int restart_read(struct edgeport_port *edge_port)
return status;
}
-static void change_port_settings(struct edgeport_port *edge_port,
- struct ktermios *old_termios)
+static void change_port_settings(struct tty_struct *tty,
+ struct edgeport_port *edge_port, struct ktermios *old_termios)
{
struct ump_uart_config *config;
- struct tty_struct *tty;
int baud;
unsigned cflag;
int status;
@@ -2284,9 +2286,7 @@ static void change_port_settings(struct edgeport_port *edge_port,
dbg("%s - port %d", __func__, edge_port->port->number);
- tty = edge_port->port->tty;
-
- config = kmalloc(sizeof(*config), GFP_KERNEL);
+ config = kmalloc (sizeof (*config), GFP_KERNEL);
if (!config) {
*tty->termios = *old_termios;
dev_err(&edge_port->port->dev, "%s - out of memory\n",
@@ -2419,11 +2419,13 @@ static void change_port_settings(struct edgeport_port *edge_port,
return;
}
-static void edge_set_termios(struct usb_serial_port *port,
- struct ktermios *old_termios)
+static void edge_set_termios(struct tty_struct *tty,
+ struct usb_serial_port *port, struct ktermios *old_termios)
{
struct edgeport_port *edge_port = usb_get_serial_port_data(port);
- struct tty_struct *tty = port->tty;
+ unsigned int cflag;
+
+ cflag = tty->termios->c_cflag;
dbg("%s - clfag %08x iflag %08x", __func__,
tty->termios->c_cflag, tty->termios->c_iflag);
@@ -2434,12 +2436,14 @@ static void edge_set_termios(struct usb_serial_port *port,
if (edge_port == NULL)
return;
/* change the port settings to the new ones specified */
- change_port_settings(edge_port, old_termios);
+ change_port_settings(tty, edge_port, old_termios);
+ return;
}
-static int edge_tiocmset(struct usb_serial_port *port, struct file *file,
+static int edge_tiocmset(struct tty_struct *tty, struct file *file,
unsigned int set, unsigned int clear)
{
+ struct usb_serial_port *port = tty->driver_data;
struct edgeport_port *edge_port = usb_get_serial_port_data(port);
unsigned int mcr;
unsigned long flags;
@@ -2469,8 +2473,9 @@ static int edge_tiocmset(struct usb_serial_port *port, struct file *file,
return 0;
}
-static int edge_tiocmget(struct usb_serial_port *port, struct file *file)
+static int edge_tiocmget(struct tty_struct *tty, struct file *file)
{
+ struct usb_serial_port *port = tty->driver_data;
struct edgeport_port *edge_port = usb_get_serial_port_data(port);
unsigned int result = 0;
unsigned int msr;
@@ -2522,9 +2527,10 @@ static int get_serial_info(struct edgeport_port *edge_port,
return 0;
}
-static int edge_ioctl(struct usb_serial_port *port, struct file *file,
+static int edge_ioctl(struct tty_struct *tty, struct file *file,
unsigned int cmd, unsigned long arg)
{
+ struct usb_serial_port *port = tty->driver_data;
struct edgeport_port *edge_port = usb_get_serial_port_data(port);
struct async_icount cnow;
struct async_icount cprev;
@@ -2569,18 +2575,19 @@ static int edge_ioctl(struct usb_serial_port *port, struct file *file,
return -ENOIOCTLCMD;
}
-static void edge_break(struct usb_serial_port *port, int on)
+static void edge_break(struct tty_struct *tty, int break_state)
{
+ struct usb_serial_port *port = tty->driver_data;
struct edgeport_port *edge_port = usb_get_serial_port_data(port);
int status;
int bv = 0; /* Off */
- dbg("%s - state = %d", __func__, on);
+ dbg("%s - state = %d", __func__, break_state);
/* chase the port close */
chase_port(edge_port, 0, 0);
- if (on == -1)
+ if (break_state == -1)
bv = 1; /* On */
status = ti_do_config(edge_port, UMPC_SET_CLR_BREAK, bv);
if (status)
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-14 23:08:37 +0000