static struct usb_device_id id_table [] = {
{ USB_DEVICE(0x0c88, 0x17da) }, /* Kyocera Wireless KPC650/Passport */
- { USB_DEVICE(0x1410, 0x1110) }, /* Novatel Wireless Merlin CDMA */
- { USB_DEVICE(0x1410, 0x1430) }, /* Novatel Merlin XU870 HSDPA/3G */
- { USB_DEVICE(0x1410, 0x1100) }, /* ExpressCard34 Qualcomm 3G CDMA */
{ USB_DEVICE(0x413c, 0x8115) }, /* Dell Wireless HSDPA 5500 */
{ },
};
int outstanding_urbs;
int throttled;
struct urb *read_urbp[NUM_READ_URBS];
+
+ /* Settings for the port */
+ int rts_state; /* Handshaking pins (outputs) */
+ int dtr_state;
+ int cts_state; /* Handshaking pins (inputs) */
+ int dsr_state;
+ int dcd_state;
+ int ri_state;
};
+static int airprime_send_setup(struct usb_serial_port *port)
+{
+ struct usb_serial *serial = port->serial;
+ struct airprime_private *priv;
+
+ dbg("%s", __FUNCTION__);
+
+ if (port->number != 0)
+ return 0;
+
+ priv = usb_get_serial_port_data(port);
+
+ if (port->tty) {
+ int val = 0;
+ if (priv->dtr_state)
+ val |= 0x01;
+ if (priv->rts_state)
+ val |= 0x02;
+
+ return usb_control_msg(serial->dev,
+ usb_rcvctrlpipe(serial->dev, 0),
+ 0x22,0x21,val,0,NULL,0,USB_CTRL_SET_TIMEOUT);
+ }
+
+ return 0;
+}
+
static void airprime_read_bulk_callback(struct urb *urb)
{
struct usb_serial_port *port = urb->context;
unsigned char *data = urb->transfer_buffer;
struct tty_struct *tty;
int result;
+ int status = urb->status;
dbg("%s - port %d", __FUNCTION__, port->number);
- if (urb->status) {
+ if (status) {
dbg("%s - nonzero read bulk status received: %d",
- __FUNCTION__, urb->status);
- /* something happened, so free up the memory for this urb */
- if (urb->transfer_buffer) {
- kfree (urb->transfer_buffer);
- urb->transfer_buffer = NULL;
- }
+ __FUNCTION__, status);
return;
}
usb_serial_debug_data(debug, &port->dev, __FUNCTION__, urb->actual_length, data);
{
struct usb_serial_port *port = urb->context;
struct airprime_private *priv = usb_get_serial_port_data(port);
+ int status = urb->status;
unsigned long flags;
dbg("%s - port %d", __FUNCTION__, port->number);
/* free up the transfer buffer, as usb_free_urb() does not do this */
kfree (urb->transfer_buffer);
- if (urb->status)
+ if (status)
dbg("%s - nonzero write bulk status received: %d",
- __FUNCTION__, urb->status);
+ __FUNCTION__, status);
spin_lock_irqsave(&priv->lock, flags);
--priv->outstanding_urbs;
spin_unlock_irqrestore(&priv->lock, flags);
usb_set_serial_port_data(port, priv);
}
+ /* Set some sane defaults */
+ priv->rts_state = 1;
+ priv->dtr_state = 1;
+
for (i = 0; i < NUM_READ_URBS; ++i) {
buffer = kmalloc(buffer_size, GFP_KERNEL);
if (!buffer) {
airprime_read_bulk_callback, port);
result = usb_submit_urb(urb, GFP_KERNEL);
if (result) {
+ usb_free_urb(urb);
+ kfree(buffer);
dev_err(&port->dev,
"%s - failed submitting read urb %d for port %d, error %d\n",
__FUNCTION__, i, port->number, result);
/* remember this urb so we can kill it when the port is closed */
priv->read_urbp[i] = urb;
}
+
+ airprime_send_setup(port);
+
goto out;
errout:
/* some error happened, cancel any submitted urbs and clean up anything that
got allocated successfully */
- for ( ; i >= 0; --i) {
+ while (i-- != 0) {
urb = priv->read_urbp[i];
- if (urb) {
- /* This urb was submitted successfully. So we have to
- cancel it.
- Unlinking the urb will invoke read_bulk_callback()
- with an error status, so its transfer buffer will
- be freed there */
- if (usb_unlink_urb (urb) != -EINPROGRESS) {
- /* comments in drivers/usb/core/urb.c say this
- can only happen if the urb was never submitted,
- or has completed already.
- Either way we may have to free the transfer
- buffer here. */
- if (urb->transfer_buffer) {
- kfree (urb->transfer_buffer);
- urb->transfer_buffer = NULL;
- }
- }
- usb_free_urb (urb);
- }
+ buffer = urb->transfer_buffer;
+ usb_kill_urb (urb);
+ usb_free_urb (urb);
+ kfree (buffer);
}
out:
dbg("%s - port %d", __FUNCTION__, port->number);
- /* killing the urb will invoke read_bulk_callback() with an error status,
- so the transfer buffer will be freed there */
+ priv->rts_state = 0;
+ priv->dtr_state = 0;
+
+ airprime_send_setup(port);
+
for (i = 0; i < NUM_READ_URBS; ++i) {
usb_kill_urb (priv->read_urbp[i]);
+ kfree (priv->read_urbp[i]->transfer_buffer);
usb_free_urb (priv->read_urbp[i]);
}
.owner = THIS_MODULE,
.name = "airprime",
},
+ .usb_driver = &airprime_driver,
.id_table = id_table,
.num_interrupt_in = NUM_DONT_CARE,
.num_bulk_in = NUM_DONT_CARE,