static void option_close(struct tty_struct *tty,
struct usb_serial_port *port, struct file *filp)
{
int i;
struct usb_serial *serial = port->serial;
struct option_port_private *portdata;
dbg("%s", __func__);
portdata = usb_get_serial_port_data(port);
portdata->rts_state = 0;
portdata->dtr_state = 0;
if (serial->dev) {
mutex_lock(&serial->disc_mutex);
if (!serial->disconnected)
option_send_setup(tty, port);
mutex_unlock(&serial->disc_mutex);
/* Stop reading/writing urbs */
for (i = 0; i < N_IN_URB; i++)
usb_kill_urb(portdata->in_urbs[i]);
for (i = 0; i < N_OUT_URB; i++)
usb_kill_urb(portdata->out_urbs[i]);
}
tty_port_tty_set(&port->port, NULL);
}
static void option_set_termios(struct usb_serial_port *port,
struct ktermios *old_termios)
{
dbg("%s", __FUNCTION__);
option_send_setup(port);
}
static int option_open(struct tty_struct *tty,
struct usb_serial_port *port, struct file *filp)
{
struct option_port_private *portdata;
int i, err;
struct urb *urb;
portdata = usb_get_serial_port_data(port);
dbg("%s", __func__);
/* Start reading from the IN endpoint */
for (i = 0; i < N_IN_URB; i++) {
urb = portdata->in_urbs[i];
if (!urb)
continue;
err = usb_submit_urb(urb, GFP_KERNEL);
if (err) {
dbg("%s: submit urb %d failed (%d) %d",
__func__, i, err,
urb->transfer_buffer_length);
}
}
option_send_setup(port);
return 0;
}
static void option_set_termios(struct tty_struct *tty,
struct usb_serial_port *port, struct ktermios *old_termios)
{
dbg("%s", __func__);
/* Doesn't support option setting */
tty_termios_copy_hw(tty->termios, old_termios);
option_send_setup(tty, port);
}
static void option_set_termios(struct usb_serial_port *port,
struct ktermios *old_termios)
{
dbg("%s", __FUNCTION__);
/* Doesn't support option setting */
tty_termios_copy_hw(port->tty->termios, old_termios);
option_send_setup(port);
}
static int option_open(struct tty_struct *tty,
struct usb_serial_port *port, struct file *filp)
{
struct option_port_private *portdata;
struct usb_serial *serial = port->serial;
int i, err;
struct urb *urb;
portdata = usb_get_serial_port_data(port);
dbg("%s", __func__);
/* Set some sane defaults */
portdata->rts_state = 1;
portdata->dtr_state = 1;
/* Reset low level data toggle and start reading from endpoints */
for (i = 0; i < N_IN_URB; i++) {
urb = portdata->in_urbs[i];
if (!urb)
continue;
if (urb->dev != serial->dev) {
dbg("%s: dev %p != %p", __func__,
urb->dev, serial->dev);
continue;
}
/*
* make sure endpoint data toggle is synchronized with the
* device
*/
usb_clear_halt(urb->dev, urb->pipe);
err = usb_submit_urb(urb, GFP_KERNEL);
if (err) {
dbg("%s: submit urb %d failed (%d) %d",
__func__, i, err,
urb->transfer_buffer_length);
}
}
/* Reset low level data toggle on out endpoints */
for (i = 0; i < N_OUT_URB; i++) {
urb = portdata->out_urbs[i];
if (!urb)
continue;
urb->dev = serial->dev;
/* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
usb_pipeout(urb->pipe), 0); */
}
if (tty)
tty->low_latency = 1;
option_send_setup(tty, port);
return 0;
}
static void option_dtr_rts(struct usb_serial_port *port, int on)
{
struct usb_serial *serial = port->serial;
struct option_port_private *portdata;
dbg("%s", __func__);
portdata = usb_get_serial_port_data(port);
mutex_lock(&serial->disc_mutex);
portdata->rts_state = on;
portdata->dtr_state = on;
if (serial->dev)
option_send_setup(port);
mutex_unlock(&serial->disc_mutex);
}
static int option_tiocmset(struct usb_serial_port *port, struct file *file,
unsigned int set, unsigned int clear)
{
struct option_port_private *portdata;
portdata = usb_get_serial_port_data(port);
if (set & TIOCM_RTS)
portdata->rts_state = 1;
if (set & TIOCM_DTR)
portdata->dtr_state = 1;
if (clear & TIOCM_RTS)
portdata->rts_state = 0;
if (clear & TIOCM_DTR)
portdata->dtr_state = 0;
return option_send_setup(port);
}
static int option_tiocmset(struct tty_struct *tty, struct file *file,
unsigned int set, unsigned int clear)
{
struct usb_serial_port *port = tty->driver_data;
struct option_port_private *portdata;
portdata = usb_get_serial_port_data(port);
/* FIXME: what locks portdata fields ? */
if (set & TIOCM_RTS)
portdata->rts_state = 1;
if (set & TIOCM_DTR)
portdata->dtr_state = 1;
if (clear & TIOCM_RTS)
portdata->rts_state = 0;
if (clear & TIOCM_DTR)
portdata->dtr_state = 0;
return option_send_setup(tty, port);
}
static void option_close(struct usb_serial_port *port, struct file *filp)
{
int i;
struct usb_serial *serial = port->serial;
struct option_port_private *portdata;
dbg("%s", __FUNCTION__);
portdata = usb_get_serial_port_data(port);
portdata->rts_state = 0;
portdata->dtr_state = 0;
if (serial->dev) {
option_send_setup(port);
/* Stop reading/writing urbs */
for (i = 0; i < N_IN_URB; i++)
usb_kill_urb(portdata->in_urbs[i]);
for (i = 0; i < N_OUT_URB; i++)
usb_kill_urb(portdata->out_urbs[i]);
}
port->tty = NULL;
}
