struct pl2303_private {
spinlock_t lock;
- wait_queue_head_t delta_msr_wait;
u8 line_control;
u8 line_status;
};
int res = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
VENDOR_READ_REQUEST, VENDOR_READ_REQUEST_TYPE,
value, index, buf, 1, 100);
- dev_dbg(&serial->dev->dev, "0x%x:0x%x:0x%x:0x%x %d - %x\n",
+ dev_dbg(&serial->interface->dev, "0x%x:0x%x:0x%x:0x%x %d - %x\n",
VENDOR_READ_REQUEST_TYPE, VENDOR_READ_REQUEST, value, index,
res, buf[0]);
return res;
int res = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
VENDOR_WRITE_REQUEST, VENDOR_WRITE_REQUEST_TYPE,
value, index, NULL, 0, 100);
- dev_dbg(&serial->dev->dev, "0x%x:0x%x:0x%x:0x%x %d\n",
+ dev_dbg(&serial->interface->dev, "0x%x:0x%x:0x%x:0x%x %d\n",
VENDOR_WRITE_REQUEST_TYPE, VENDOR_WRITE_REQUEST, value, index,
res);
return res;
return -ENOMEM;
spin_lock_init(&priv->lock);
- init_waitqueue_head(&priv->delta_msr_wait);
usb_set_serial_port_data(port, priv);
return 0;
}
-static int set_control_lines(struct usb_device *dev, u8 value)
+static int pl2303_set_control_lines(struct usb_serial_port *port, u8 value)
{
+ struct usb_device *dev = port->serial->dev;
int retval;
retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
SET_CONTROL_REQUEST, SET_CONTROL_REQUEST_TYPE,
value, 0, NULL, 0, 100);
- dev_dbg(&dev->dev, "%s - value = %d, retval = %d\n", __func__,
+ dev_dbg(&port->dev, "%s - value = %d, retval = %d\n", __func__,
value, retval);
return retval;
}
if (control != priv->line_control) {
control = priv->line_control;
spin_unlock_irqrestore(&priv->lock, flags);
- set_control_lines(serial->dev, control);
+ pl2303_set_control_lines(port, control);
} else {
spin_unlock_irqrestore(&priv->lock, flags);
}
priv->line_control &= ~(CONTROL_DTR | CONTROL_RTS);
control = priv->line_control;
spin_unlock_irqrestore(&priv->lock, flags);
- set_control_lines(port->serial->dev, control);
+ pl2303_set_control_lines(port, control);
}
static void pl2303_close(struct usb_serial_port *port)
mutex_lock(&serial->disc_mutex);
if (!serial->disconnected)
- ret = set_control_lines(serial->dev, control);
+ ret = pl2303_set_control_lines(port, control);
else
ret = -ENODEV;
mutex_unlock(&serial->disc_mutex);
return 0;
}
-static int wait_modem_info(struct usb_serial_port *port, unsigned int arg)
+static int pl2303_tiocmiwait(struct tty_struct *tty, unsigned long arg)
{
+ struct usb_serial_port *port = tty->driver_data;
struct pl2303_private *priv = usb_get_serial_port_data(port);
unsigned long flags;
unsigned int prevstatus;
spin_unlock_irqrestore(&priv->lock, flags);
while (1) {
- interruptible_sleep_on(&priv->delta_msr_wait);
+ interruptible_sleep_on(&port->delta_msr_wait);
/* see if a signal did it */
if (signal_pending(current))
return -ERESTARTSYS;
+ if (port->serial->disconnected)
+ return -EIO;
+
spin_lock_irqsave(&priv->lock, flags);
status = priv->line_status;
spin_unlock_irqrestore(&priv->lock, flags);
return -EFAULT;
return 0;
-
- case TIOCMIWAIT:
- dev_dbg(&port->dev, "%s TIOCMIWAIT\n", __func__);
- return wait_modem_info(port, arg);
default:
dev_dbg(&port->dev, "%s not supported = 0x%04x\n", __func__, cmd);
break;
spin_unlock_irqrestore(&priv->lock, flags);
if (priv->line_status & UART_BREAK_ERROR)
usb_serial_handle_break(port);
- wake_up_interruptible(&priv->delta_msr_wait);
+ wake_up_interruptible(&port->delta_msr_wait);
tty = tty_port_tty_get(&port->port);
if (!tty)
line_status = priv->line_status;
priv->line_status &= ~UART_STATE_TRANSIENT_MASK;
spin_unlock_irqrestore(&priv->lock, flags);
- wake_up_interruptible(&priv->delta_msr_wait);
+ wake_up_interruptible(&port->delta_msr_wait);
if (!urb->actual_length)
return;
.set_termios = pl2303_set_termios,
.tiocmget = pl2303_tiocmget,
.tiocmset = pl2303_tiocmset,
+ .tiocmiwait = pl2303_tiocmiwait,
.process_read_urb = pl2303_process_read_urb,
.read_int_callback = pl2303_read_int_callback,
.attach = pl2303_startup,