+
+struct sierra_port_private {
+ spinlock_t lock; /* lock the structure */
+ int outstanding_urbs; /* number of out urbs in flight */
+ struct usb_anchor active;
+ struct usb_anchor delayed;
+
+ int num_out_urbs;
+ int num_in_urbs;
+ /* Input endpoints and buffers for this port */
+ struct urb *in_urbs[N_IN_URB_HM];
+
+ /* 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;
+ unsigned int opened:1;
+};
+
+static int sierra_send_setup(struct usb_serial_port *port)
+{
+ struct usb_serial *serial = port->serial;
+ struct sierra_port_private *portdata;
+ __u16 interface = 0;
+ int val = 0;
+ int do_send = 0;
+ int retval;
+
+ dev_dbg(&port->dev, "%s\n", __func__);
+
+ portdata = usb_get_serial_port_data(port);
+
+ if (portdata->dtr_state)
+ val |= 0x01;
+ if (portdata->rts_state)
+ val |= 0x02;
+
+ /* If composite device then properly report interface */
+ if (serial->num_ports == 1) {
+ interface = sierra_calc_interface(serial);
+ /* Control message is sent only to interfaces with
+ * interrupt_in endpoints
+ */
+ if (port->interrupt_in_urb) {
+ /* send control message */
+ do_send = 1;
+ }
+ }
+
+ /* Otherwise the need to do non-composite mapping */
+ else {
+ if (port->bulk_out_endpointAddress == 2)
+ interface = 0;
+ else if (port->bulk_out_endpointAddress == 4)
+ interface = 1;
+ else if (port->bulk_out_endpointAddress == 5)
+ interface = 2;
+
+ do_send = 1;
+ }
+ if (!do_send)
+ return 0;
+
+ usb_autopm_get_interface(serial->interface);
+ retval = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
+ 0x22, 0x21, val, interface, NULL, 0, USB_CTRL_SET_TIMEOUT);
+ usb_autopm_put_interface(serial->interface);
+
+ return retval;
+}
+
+static void sierra_set_termios(struct tty_struct *tty,
+ struct usb_serial_port *port, struct ktermios *old_termios)
+{
+ dev_dbg(&port->dev, "%s\n", __func__);
+ tty_termios_copy_hw(tty->termios, old_termios);
+ sierra_send_setup(port);
+}
+
+static int sierra_tiocmget(struct tty_struct *tty, struct file *file)
+{
+ struct usb_serial_port *port = tty->driver_data;
+ unsigned int value;
+ struct sierra_port_private *portdata;
+
+ dev_dbg(&port->dev, "%s\n", __func__);
+ portdata = usb_get_serial_port_data(port);
+
+ value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
+ ((portdata->dtr_state) ? TIOCM_DTR : 0) |
+ ((portdata->cts_state) ? TIOCM_CTS : 0) |
+ ((portdata->dsr_state) ? TIOCM_DSR : 0) |
+ ((portdata->dcd_state) ? TIOCM_CAR : 0) |
+ ((portdata->ri_state) ? TIOCM_RNG : 0);
+
+ return value;
+}
+
+static int sierra_tiocmset(struct tty_struct *tty, struct file *file,
+ unsigned int set, unsigned int clear)
+{
+ struct usb_serial_port *port = tty->driver_data;
+ struct sierra_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 sierra_send_setup(port);
+}
+
+static void sierra_release_urb(struct urb *urb)
+{
+ struct usb_serial_port *port;
+ if (urb) {
+ port = urb->context;
+ dev_dbg(&port->dev, "%s: %p\n", __func__, urb);
+ kfree(urb->transfer_buffer);
+ usb_free_urb(urb);
+ }
+}
+
+static void sierra_outdat_callback(struct urb *urb)
+{
+ struct usb_serial_port *port = urb->context;
+ struct sierra_port_private *portdata = usb_get_serial_port_data(port);
+ struct sierra_intf_private *intfdata;
+ int status = urb->status;
+
+ dev_dbg(&port->dev, "%s - port %d\n", __func__, port->number);
+ intfdata = port->serial->private;
+
+ /* free up the transfer buffer, as usb_free_urb() does not do this */
+ kfree(urb->transfer_buffer);
+ usb_autopm_put_interface_async(port->serial->interface);
+ if (status)
+ dev_dbg(&port->dev, "%s - nonzero write bulk status "
+ "received: %d\n", __func__, status);
+
+ spin_lock(&portdata->lock);
+ --portdata->outstanding_urbs;
+ spin_unlock(&portdata->lock);
+ spin_lock(&intfdata->susp_lock);
+ --intfdata->in_flight;
+ spin_unlock(&intfdata->susp_lock);
+
+ usb_serial_port_softint(port);
+}
+
+/* Write */
+static int sierra_write(struct tty_struct *tty, struct usb_serial_port *port,
+ const unsigned char *buf, int count)
+{
+ struct sierra_port_private *portdata;
+ struct sierra_intf_private *intfdata;
+ struct usb_serial *serial = port->serial;
+ unsigned long flags;
+ unsigned char *buffer;
+ struct urb *urb;
+ size_t writesize = min((size_t)count, (size_t)MAX_TRANSFER);
+ int retval = 0;
+
+ /* verify that we actually have some data to write */
+ if (count == 0)
+ return 0;
+
+ portdata = usb_get_serial_port_data(port);
+ intfdata = serial->private;
+
+ dev_dbg(&port->dev, "%s: write (%zd bytes)\n", __func__, writesize);
+ spin_lock_irqsave(&portdata->lock, flags);
+ dev_dbg(&port->dev, "%s - outstanding_urbs: %d\n", __func__,
+ portdata->outstanding_urbs);
+ if (portdata->outstanding_urbs > portdata->num_out_urbs) {
+ spin_unlock_irqrestore(&portdata->lock, flags);
+ dev_dbg(&port->dev, "%s - write limit hit\n", __func__);
+ return 0;
+ }
+ portdata->outstanding_urbs++;
+ dev_dbg(&port->dev, "%s - 1, outstanding_urbs: %d\n", __func__,
+ portdata->outstanding_urbs);
+ spin_unlock_irqrestore(&portdata->lock, flags);
+
+ retval = usb_autopm_get_interface_async(serial->interface);
+ if (retval < 0) {
+ spin_lock_irqsave(&portdata->lock, flags);
+ portdata->outstanding_urbs--;
+ spin_unlock_irqrestore(&portdata->lock, flags);
+ goto error_simple;
+ }
+
+ buffer = kmalloc(writesize, GFP_ATOMIC);
+ if (!buffer) {
+ dev_err(&port->dev, "out of memory\n");
+ retval = -ENOMEM;
+ goto error_no_buffer;
+ }
+
+ urb = usb_alloc_urb(0, GFP_ATOMIC);
+ if (!urb) {
+ dev_err(&port->dev, "no more free urbs\n");
+ retval = -ENOMEM;
+ goto error_no_urb;
+ }
+
+ memcpy(buffer, buf, writesize);
+
+ usb_serial_debug_data(debug, &port->dev, __func__, writesize, buffer);
+
+ usb_fill_bulk_urb(urb, serial->dev,
+ usb_sndbulkpipe(serial->dev,
+ port->bulk_out_endpointAddress),
+ buffer, writesize, sierra_outdat_callback, port);
+
+ /* Handle the need to send a zero length packet */
+ urb->transfer_flags |= URB_ZERO_PACKET;
+
+ spin_lock_irqsave(&intfdata->susp_lock, flags);
+
+ if (intfdata->suspended) {
+ usb_anchor_urb(urb, &portdata->delayed);
+ spin_unlock_irqrestore(&intfdata->susp_lock, flags);
+ goto skip_power;
+ } else {
+ usb_anchor_urb(urb, &portdata->active);
+ }
+ /* send it down the pipe */
+ retval = usb_submit_urb(urb, GFP_ATOMIC);
+ if (retval) {
+ usb_unanchor_urb(urb);
+ spin_unlock_irqrestore(&intfdata->susp_lock, flags);
+ dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed "
+ "with status = %d\n", __func__, retval);
+ goto error;
+ } else {
+ intfdata->in_flight++;
+ spin_unlock_irqrestore(&intfdata->susp_lock, flags);
+ }
+
+skip_power:
+ /* we are done with this urb, so let the host driver
+ * really free it when it is finished with it */
+ usb_free_urb(urb);
+
+ return writesize;
+error:
+ usb_free_urb(urb);
+error_no_urb:
+ kfree(buffer);
+error_no_buffer:
+ spin_lock_irqsave(&portdata->lock, flags);
+ --portdata->outstanding_urbs;
+ dev_dbg(&port->dev, "%s - 2. outstanding_urbs: %d\n", __func__,
+ portdata->outstanding_urbs);
+ spin_unlock_irqrestore(&portdata->lock, flags);
+ usb_autopm_put_interface_async(serial->interface);
+error_simple:
+ return retval;
+}
+
+static void sierra_indat_callback(struct urb *urb)
+{
+ int err;
+ int endpoint;
+ struct usb_serial_port *port;
+ struct tty_struct *tty;
+ unsigned char *data = urb->transfer_buffer;
+ int status = urb->status;
+
+ endpoint = usb_pipeendpoint(urb->pipe);
+ port = urb->context;
+
+ dev_dbg(&port->dev, "%s: %p\n", __func__, urb);
+
+ if (status) {
+ dev_dbg(&port->dev, "%s: nonzero status: %d on"
+ " endpoint %02x\n", __func__, status, endpoint);
+ } else {
+ if (urb->actual_length) {
+ tty = tty_port_tty_get(&port->port);
+ if (tty) {
+ tty_insert_flip_string(tty, data,
+ urb->actual_length);
+ tty_flip_buffer_push(tty);
+
+ tty_kref_put(tty);
+ usb_serial_debug_data(debug, &port->dev,
+ __func__, urb->actual_length, data);
+ }
+ } else {
+ dev_dbg(&port->dev, "%s: empty read urb"
+ " received\n", __func__);
+ }
+ }
+
+ /* Resubmit urb so we continue receiving */
+ if (status != -ESHUTDOWN && status != -EPERM) {
+ usb_mark_last_busy(port->serial->dev);
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (err && err != -EPERM)
+ dev_err(&port->dev, "resubmit read urb failed."
+ "(%d)\n", err);
+ }
+
+ return;
+}
+
+static void sierra_instat_callback(struct urb *urb)
+{
+ int err;
+ int status = urb->status;
+ struct usb_serial_port *port = urb->context;
+ struct sierra_port_private *portdata = usb_get_serial_port_data(port);
+ struct usb_serial *serial = port->serial;
+
+ dev_dbg(&port->dev, "%s: urb %p port %p has data %p\n", __func__,
+ urb, port, portdata);
+
+ if (status == 0) {
+ struct usb_ctrlrequest *req_pkt =
+ (struct usb_ctrlrequest *)urb->transfer_buffer;
+
+ if (!req_pkt) {
+ dev_dbg(&port->dev, "%s: NULL req_pkt\n",
+ __func__);
+ return;
+ }
+ if ((req_pkt->bRequestType == 0xA1) &&
+ (req_pkt->bRequest == 0x20)) {
+ int old_dcd_state;
+ unsigned char signals = *((unsigned char *)
+ urb->transfer_buffer +
+ sizeof(struct usb_ctrlrequest));
+ struct tty_struct *tty;
+
+ dev_dbg(&port->dev, "%s: signal x%x\n", __func__,
+ signals);
+
+ old_dcd_state = portdata->dcd_state;
+ portdata->cts_state = 1;
+ portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
+ portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
+ portdata->ri_state = ((signals & 0x08) ? 1 : 0);
+
+ tty = tty_port_tty_get(&port->port);
+ if (tty && !C_CLOCAL(tty) &&
+ old_dcd_state && !portdata->dcd_state)
+ tty_hangup(tty);
+ tty_kref_put(tty);
+ } else {
+ dev_dbg(&port->dev, "%s: type %x req %x\n",
+ __func__, req_pkt->bRequestType,
+ req_pkt->bRequest);
+ }
+ } else
+ dev_dbg(&port->dev, "%s: error %d\n", __func__, status);
+
+ /* Resubmit urb so we continue receiving IRQ data */
+ if (status != -ESHUTDOWN && status != -ENOENT) {
+ usb_mark_last_busy(serial->dev);
+ urb->dev = serial->dev;
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (err && err != -EPERM)
+ dev_err(&port->dev, "%s: resubmit intr urb "
+ "failed. (%d)\n", __func__, err);
+ }
+}
+
+static int sierra_write_room(struct tty_struct *tty)
+{
+ struct usb_serial_port *port = tty->driver_data;
+ struct sierra_port_private *portdata = usb_get_serial_port_data(port);
+ unsigned long flags;
+
+ dev_dbg(&port->dev, "%s - port %d\n", __func__, port->number);
+
+ /* try to give a good number back based on if we have any free urbs at
+ * this point in time */
+ spin_lock_irqsave(&portdata->lock, flags);
+ if (portdata->outstanding_urbs > (portdata->num_out_urbs * 2) / 3) {
+ spin_unlock_irqrestore(&portdata->lock, flags);
+ dev_dbg(&port->dev, "%s - write limit hit\n", __func__);
+ return 0;
+ }
+ spin_unlock_irqrestore(&portdata->lock, flags);
+
+ return 2048;
+}
+
+static void sierra_stop_rx_urbs(struct usb_serial_port *port)
+{
+ int i;
+ struct sierra_port_private *portdata = usb_get_serial_port_data(port);
+
+ for (i = 0; i < portdata->num_in_urbs; i++)
+ usb_kill_urb(portdata->in_urbs[i]);
+
+ usb_kill_urb(port->interrupt_in_urb);
+}
+
+static int sierra_submit_rx_urbs(struct usb_serial_port *port, gfp_t mem_flags)
+{
+ int ok_cnt;
+ int err = -EINVAL;
+ int i;
+ struct urb *urb;
+ struct sierra_port_private *portdata = usb_get_serial_port_data(port);
+
+ ok_cnt = 0;
+ for (i = 0; i < portdata->num_in_urbs; i++) {
+ urb = portdata->in_urbs[i];
+ if (!urb)
+ continue;
+ err = usb_submit_urb(urb, mem_flags);
+ if (err) {
+ dev_err(&port->dev, "%s: submit urb failed: %d\n",
+ __func__, err);
+ } else {
+ ok_cnt++;
+ }
+ }
+
+ if (ok_cnt && port->interrupt_in_urb) {
+ err = usb_submit_urb(port->interrupt_in_urb, mem_flags);
+ if (err) {
+ dev_err(&port->dev, "%s: submit intr urb failed: %d\n",
+ __func__, err);
+ }
+ }
+
+ if (ok_cnt > 0) /* at least one rx urb submitted */
+ return 0;
+ else
+ return err;
+}
+
+static struct urb *sierra_setup_urb(struct usb_serial *serial, int endpoint,
+ int dir, void *ctx, int len,
+ gfp_t mem_flags,
+ usb_complete_t callback)
+{
+ struct urb *urb;
+ u8 *buf;
+
+ if (endpoint == -1)
+ return NULL;
+
+ urb = usb_alloc_urb(0, mem_flags);
+ if (urb == NULL) {
+ dev_dbg(&serial->dev->dev, "%s: alloc for endpoint %d failed\n",
+ __func__, endpoint);
+ return NULL;
+ }
+
+ buf = kmalloc(len, mem_flags);
+ if (buf) {
+ /* Fill URB using supplied data */
+ usb_fill_bulk_urb(urb, serial->dev,
+ usb_sndbulkpipe(serial->dev, endpoint) | dir,
+ buf, len, callback, ctx);
+
+ /* debug */
+ dev_dbg(&serial->dev->dev, "%s %c u : %p d:%p\n", __func__,
+ dir == USB_DIR_IN ? 'i' : 'o', urb, buf);
+ } else {
+ dev_dbg(&serial->dev->dev, "%s %c u:%p d:%p\n", __func__,
+ dir == USB_DIR_IN ? 'i' : 'o', urb, buf);
+
+ sierra_release_urb(urb);
+ urb = NULL;
+ }
+
+ return urb;
+}
+
+static void sierra_close(struct usb_serial_port *port)
+{
+ int i;
+ struct usb_serial *serial = port->serial;
+ struct sierra_port_private *portdata;
+ struct sierra_intf_private *intfdata = port->serial->private;
+
+
+ dev_dbg(&port->dev, "%s\n", __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) {
+ serial->interface->needs_remote_wakeup = 0;
+ usb_autopm_get_interface(serial->interface);
+ sierra_send_setup(port);
+ }
+ mutex_unlock(&serial->disc_mutex);
+ spin_lock_irq(&intfdata->susp_lock);
+ portdata->opened = 0;
+ spin_unlock_irq(&intfdata->susp_lock);
+
+
+ /* Stop reading urbs */
+ sierra_stop_rx_urbs(port);
+ /* .. and release them */
+ for (i = 0; i < portdata->num_in_urbs; i++) {
+ sierra_release_urb(portdata->in_urbs[i]);
+ portdata->in_urbs[i] = NULL;
+ }
+ }
+}
+
+static int sierra_open(struct tty_struct *tty, struct usb_serial_port *port)
+{
+ struct sierra_port_private *portdata;
+ struct usb_serial *serial = port->serial;
+ struct sierra_intf_private *intfdata = serial->private;
+ int i;
+ int err;
+ int endpoint;
+ struct urb *urb;
+
+ portdata = usb_get_serial_port_data(port);
+
+ dev_dbg(&port->dev, "%s\n", __func__);
+
+ /* Set some sane defaults */
+ portdata->rts_state = 1;
+ portdata->dtr_state = 1;
+
+
+ endpoint = port->bulk_in_endpointAddress;
+ for (i = 0; i < portdata->num_in_urbs; i++) {
+ urb = sierra_setup_urb(serial, endpoint, USB_DIR_IN, port,
+ IN_BUFLEN, GFP_KERNEL,
+ sierra_indat_callback);
+ portdata->in_urbs[i] = urb;
+ }
+ /* clear halt condition */
+ usb_clear_halt(serial->dev,
+ usb_sndbulkpipe(serial->dev, endpoint) | USB_DIR_IN);
+
+ err = sierra_submit_rx_urbs(port, GFP_KERNEL);
+ if (err) {
+ /* get rid of everything as in close */
+ sierra_close(port);
+ /* restore balance for autopm */
+ usb_autopm_put_interface(serial->interface);
+ return err;
+ }
+ sierra_send_setup(port);
+
+ serial->interface->needs_remote_wakeup = 1;
+ spin_lock_irq(&intfdata->susp_lock);
+ portdata->opened = 1;
+ spin_unlock_irq(&intfdata->susp_lock);
+ usb_autopm_put_interface(serial->interface);
+
+ return 0;
+}
+
+
+static void sierra_dtr_rts(struct usb_serial_port *port, int on)
+{
+ struct usb_serial *serial = port->serial;
+ struct sierra_port_private *portdata;
+
+ portdata = usb_get_serial_port_data(port);
+ portdata->rts_state = on;
+ portdata->dtr_state = on;
+
+ if (serial->dev) {
+ mutex_lock(&serial->disc_mutex);
+ if (!serial->disconnected)
+ sierra_send_setup(port);
+ mutex_unlock(&serial->disc_mutex);
+ }
+}
+
+static int sierra_startup(struct usb_serial *serial)
+{
+ struct usb_serial_port *port;
+ struct sierra_port_private *portdata;
+ struct sierra_iface_info *himemoryp = NULL;
+ int i;
+ u8 ifnum;
+
+ dev_dbg(&serial->dev->dev, "%s\n", __func__);
+
+ /* Set Device mode to D0 */
+ sierra_set_power_state(serial->dev, 0x0000);
+
+ /* Check NMEA and set */
+ if (nmea)
+ sierra_vsc_set_nmea(serial->dev, 1);
+
+ /* Now setup per port private data */
+ for (i = 0; i < serial->num_ports; i++) {
+ port = serial->port[i];
+ portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
+ if (!portdata) {
+ dev_dbg(&port->dev, "%s: kmalloc for "
+ "sierra_port_private (%d) failed!\n",
+ __func__, i);
+ return -ENOMEM;
+ }
+ spin_lock_init(&portdata->lock);
+ init_usb_anchor(&portdata->active);
+ init_usb_anchor(&portdata->delayed);
+ ifnum = i;
+ /* Assume low memory requirements */
+ portdata->num_out_urbs = N_OUT_URB;
+ portdata->num_in_urbs = N_IN_URB;
+
+ /* Determine actual memory requirements */
+ if (serial->num_ports == 1) {
+ /* Get interface number for composite device */
+ ifnum = sierra_calc_interface(serial);
+ himemoryp =
+ (struct sierra_iface_info *)&typeB_interface_list;
+ if (is_himemory(ifnum, himemoryp)) {
+ portdata->num_out_urbs = N_OUT_URB_HM;
+ portdata->num_in_urbs = N_IN_URB_HM;
+ }
+ }
+ else {
+ himemoryp =
+ (struct sierra_iface_info *)&typeA_interface_list;
+ if (is_himemory(i, himemoryp)) {
+ portdata->num_out_urbs = N_OUT_URB_HM;
+ portdata->num_in_urbs = N_IN_URB_HM;
+ }
+ }
+ dev_dbg(&serial->dev->dev,
+ "Memory usage (urbs) interface #%d, in=%d, out=%d\n",
+ ifnum,portdata->num_in_urbs, portdata->num_out_urbs );
+ /* Set the port private data pointer */
+ usb_set_serial_port_data(port, portdata);
+ }
+
+ return 0;
+}
+
+static void sierra_release(struct usb_serial *serial)
+{
+ int i;
+ struct usb_serial_port *port;
+ struct sierra_port_private *portdata;
+
+ dev_dbg(&serial->dev->dev, "%s\n", __func__);
+
+ for (i = 0; i < serial->num_ports; ++i) {
+ port = serial->port[i];
+ if (!port)
+ continue;
+ portdata = usb_get_serial_port_data(port);
+ if (!portdata)
+ continue;
+ kfree(portdata);
+ }
+}
+
+#ifdef CONFIG_PM
+static void stop_read_write_urbs(struct usb_serial *serial)
+{
+ int i;
+ struct usb_serial_port *port;
+ struct sierra_port_private *portdata;
+
+ /* Stop reading/writing urbs */
+ for (i = 0; i < serial->num_ports; ++i) {
+ port = serial->port[i];
+ portdata = usb_get_serial_port_data(port);
+ sierra_stop_rx_urbs(port);
+ usb_kill_anchored_urbs(&portdata->active);
+ }
+}
+
+static int sierra_suspend(struct usb_serial *serial, pm_message_t message)
+{
+ struct sierra_intf_private *intfdata;
+ int b;
+
+ if (message.event & PM_EVENT_AUTO) {
+ intfdata = serial->private;
+ spin_lock_irq(&intfdata->susp_lock);
+ b = intfdata->in_flight;
+
+ if (b) {
+ spin_unlock_irq(&intfdata->susp_lock);
+ return -EBUSY;
+ } else {
+ intfdata->suspended = 1;
+ spin_unlock_irq(&intfdata->susp_lock);
+ }
+ }
+ stop_read_write_urbs(serial);
+
+ return 0;
+}
+
+static int sierra_resume(struct usb_serial *serial)
+{
+ struct usb_serial_port *port;
+ struct sierra_intf_private *intfdata = serial->private;
+ struct sierra_port_private *portdata;
+ struct urb *urb;
+ int ec = 0;
+ int i, err;
+
+ spin_lock_irq(&intfdata->susp_lock);
+ for (i = 0; i < serial->num_ports; i++) {
+ port = serial->port[i];
+ portdata = usb_get_serial_port_data(port);
+
+ while ((urb = usb_get_from_anchor(&portdata->delayed))) {
+ usb_anchor_urb(urb, &portdata->active);
+ intfdata->in_flight++;
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (err < 0) {
+ intfdata->in_flight--;
+ usb_unanchor_urb(urb);
+ usb_scuttle_anchored_urbs(&portdata->delayed);
+ break;
+ }
+ }
+
+ if (portdata->opened) {
+ err = sierra_submit_rx_urbs(port, GFP_ATOMIC);
+ if (err)
+ ec++;
+ }
+ }
+ intfdata->suspended = 0;
+ spin_unlock_irq(&intfdata->susp_lock);
+
+ return ec ? -EIO : 0;
+}
+
+static int sierra_reset_resume(struct usb_interface *intf)
+{
+ struct usb_serial *serial = usb_get_intfdata(intf);
+ dev_err(&serial->dev->dev, "%s\n", __func__);
+ return usb_serial_resume(intf);
+}
+#else
+#define sierra_suspend NULL
+#define sierra_resume NULL
+#define sierra_reset_resume NULL
+#endif
+