int usbnet_suspend (struct usb_interface *intf, pm_message_t message)
{
struct usbnet *dev = usb_get_intfdata(intf);
pr_info("%s+\n", __func__);
if (!dev->suspend_count++) {
spin_lock_irq(&dev->txq.lock);
/* don't autosuspend while transmitting */
if (dev->txq.qlen && (message.event & PM_EVENT_AUTO)) {
spin_unlock_irq(&dev->txq.lock);
--dev->suspend_count;
return -EBUSY;
} else {
set_bit(EVENT_DEV_ASLEEP, &dev->flags);
spin_unlock_irq(&dev->txq.lock);
}
/*
* accelerate emptying of the rx and queues, to avoid
* having everything error out.
*/
pr_info("%s+:d\n", __func__);
netif_device_detach (dev->net);
pr_info("%s+:t\n", __func__);
usbnet_terminate_urbs(dev);
pr_info("%s+:k\n", __func__);
usb_kill_urb(dev->interrupt);
/*
* reattach so runtime management can use and
* wake the device
*/
pr_info("%s+:a\n", __func__);
netif_device_attach (dev->net);
}
pr_info("%s-\n", __func__);
return 0;
}
int usbnet_suspend (struct usb_interface *intf, pm_message_t message)
{
struct usbnet *dev = usb_get_intfdata(intf);
if (!dev->suspend_count++) {
#if defined(CONFIG_ERICSSON_F3307_ENABLE)
spin_lock_irq(&dev->txq.lock);
/* don't autosuspend while transmitting */
if (dev->txq.qlen && (message.event & PM_EVENT_AUTO)) {
spin_unlock_irq(&dev->txq.lock);
return -EBUSY;
} else {
set_bit(EVENT_DEV_ASLEEP, &dev->flags);
spin_unlock_irq(&dev->txq.lock);
}
#endif
/*
* accelerate emptying of the rx and queues, to avoid
* having everything error out.
*/
netif_device_detach (dev->net);
#if !defined(CONFIG_ERICSSON_F3307_ENABLE)
(void) unlink_urbs (dev, &dev->rxq);
(void) unlink_urbs (dev, &dev->txq);
#else
usbnet_terminate_urbs(dev);
usb_kill_urb(dev->interrupt);
#endif
/*
* reattach so runtime management can use and
* wake the device
*/
netif_device_attach (dev->net);
}
return 0;
}
static int rmnet_usb_suspend(struct usb_interface *iface, pm_message_t message)
{
struct usbnet *unet = usb_get_intfdata(iface);
struct rmnet_ctrl_dev *dev;
int i, n, rdev_cnt, unet_id;
int retval = 0;
rdev_cnt = unet->data[4] ? no_rmnet_insts_per_dev : 1;
for (n = 0; n < rdev_cnt; n++) {
unet_id = n + unet->driver_info->data * no_rmnet_insts_per_dev;
unet =
unet->data[4] ? unet_list[unet_id] : usb_get_intfdata(iface);
dev = (struct rmnet_ctrl_dev *)unet->data[1];
spin_lock_irq(&unet->txq.lock);
if (work_busy(&dev->get_encap_work) || unet->txq.qlen) {
spin_unlock_irq(&unet->txq.lock);
retval = -EBUSY;
goto abort_suspend;
}
set_bit(EVENT_DEV_ASLEEP, &unet->flags);
spin_unlock_irq(&unet->txq.lock);
usb_kill_anchored_urbs(&dev->rx_submitted);
if (work_busy(&dev->get_encap_work)) {
spin_lock_irq(&unet->txq.lock);
clear_bit(EVENT_DEV_ASLEEP, &unet->flags);
spin_unlock_irq(&unet->txq.lock);
retval = -EBUSY;
goto abort_suspend;
}
}
for (n = 0; n < rdev_cnt; n++) {
unet_id = n + unet->driver_info->data * no_rmnet_insts_per_dev;
unet =
unet->data[4] ? unet_list[unet_id] : usb_get_intfdata(iface);
dev = (struct rmnet_ctrl_dev *)unet->data[1];
netif_device_detach(unet->net);
usbnet_terminate_urbs(unet);
netif_device_attach(unet->net);
}
#if defined(CONFIG_MONITOR_STREAMING_PORT_SOCKET) && defined(CONFIG_MSM_NONSMD_PACKET_FILTER)
if (use_extend_suspend_timer) {
if (original_autosuspend_timer != 0) {
struct usb_device *udev= unet->udev;
if (udev) {
use_extend_suspend_timer= false;
pm_runtime_set_autosuspend_delay(&udev->dev, original_autosuspend_timer);
dev_err(&udev->dev, "is_streaming_sock_connectted:%d pm_runtime_set_autosuspend_delay %d\n", is_streaming_sock_connectted, original_autosuspend_timer);
}
}
}
#endif
return 0;
abort_suspend:
for (i = 0; i < n; i++) {
unet_id = i + unet->driver_info->data * no_rmnet_insts_per_dev;
unet =
unet->data[4] ? unet_list[unet_id] : usb_get_intfdata(iface);
dev = (struct rmnet_ctrl_dev *)unet->data[1];
rmnet_usb_ctrl_start_rx(dev);
spin_lock_irq(&unet->txq.lock);
clear_bit(EVENT_DEV_ASLEEP, &unet->flags);
spin_unlock_irq(&unet->txq.lock);
}
return retval;
}
static int rmnet_usb_suspend(struct usb_interface *iface, pm_message_t message)
{
struct usbnet *unet = usb_get_intfdata(iface);
struct rmnet_ctrl_dev *dev;
int i, n, rdev_cnt, unet_id;
int retval = 0;
rdev_cnt = unet->data[4] ? no_rmnet_insts_per_dev : 1;
for (n = 0; n < rdev_cnt; n++) {
unet_id = n + unet->driver_info->data * no_rmnet_insts_per_dev;
unet =
unet->data[4] ? unet_list[unet_id] : usb_get_intfdata(iface);
dev = (struct rmnet_ctrl_dev *)unet->data[1];
spin_lock_irq(&unet->txq.lock);
if (work_busy(&dev->get_encap_work) || unet->txq.qlen) {
spin_unlock_irq(&unet->txq.lock);
retval = -EBUSY;
goto abort_suspend;
}
set_bit(EVENT_DEV_ASLEEP, &unet->flags);
spin_unlock_irq(&unet->txq.lock);
usb_kill_anchored_urbs(&dev->rx_submitted);
if (work_busy(&dev->get_encap_work)) {
spin_lock_irq(&unet->txq.lock);
clear_bit(EVENT_DEV_ASLEEP, &unet->flags);
spin_unlock_irq(&unet->txq.lock);
retval = -EBUSY;
goto abort_suspend;
}
}
for (n = 0; n < rdev_cnt; n++) {
unet_id = n + unet->driver_info->data * no_rmnet_insts_per_dev;
unet =
unet->data[4] ? unet_list[unet_id] : usb_get_intfdata(iface);
dev = (struct rmnet_ctrl_dev *)unet->data[1];
netif_device_detach(unet->net);
usbnet_terminate_urbs(unet);
netif_device_attach(unet->net);
}
return 0;
abort_suspend:
for (i = 0; i < n; i++) {
unet_id = i + unet->driver_info->data * no_rmnet_insts_per_dev;
unet =
unet->data[4] ? unet_list[unet_id] : usb_get_intfdata(iface);
dev = (struct rmnet_ctrl_dev *)unet->data[1];
rmnet_usb_ctrl_start_rx(dev);
spin_lock_irq(&unet->txq.lock);
clear_bit(EVENT_DEV_ASLEEP, &unet->flags);
spin_unlock_irq(&unet->txq.lock);
}
return retval;
}
int usbnet_stop (struct net_device *net)
{
struct usbnet *dev = netdev_priv(net);
struct driver_info *info = dev->driver_info;
#if !defined(CONFIG_ERICSSON_F3307_ENABLE)
int temp;
#endif
int retval;
#if !defined(CONFIG_ERICSSON_F3307_ENABLE)
DECLARE_WAIT_QUEUE_HEAD_ONSTACK (unlink_wakeup);
DECLARE_WAITQUEUE (wait, current);
#endif
netif_stop_queue (net);
if (netif_msg_ifdown (dev))
devinfo (dev, "stop stats: rx/tx %ld/%ld, errs %ld/%ld",
net->stats.rx_packets, net->stats.tx_packets,
net->stats.rx_errors, net->stats.tx_errors
);
/* allow minidriver to stop correctly (wireless devices to turn off
* radio etc) */
if (info->stop) {
retval = info->stop(dev);
if (retval < 0 && netif_msg_ifdown(dev))
devinfo(dev,
"stop fail (%d) usbnet usb-%s-%s, %s",
retval,
dev->udev->bus->bus_name, dev->udev->devpath,
info->description);
}
#if !defined(CONFIG_ERICSSON_F3307_ENABLE)
if (!(info->flags & FLAG_AVOID_UNLINK_URBS)) {
/* ensure there are no more active urbs */
add_wait_queue(&unlink_wakeup, &wait);
dev->wait = &unlink_wakeup;
temp = unlink_urbs(dev, &dev->txq) +
unlink_urbs(dev, &dev->rxq);
/* maybe wait for deletions to finish. */
while (!skb_queue_empty(&dev->rxq)
&& !skb_queue_empty(&dev->txq)
&& !skb_queue_empty(&dev->done)) {
msleep(UNLINK_TIMEOUT_MS);
if (netif_msg_ifdown(dev))
devdbg(dev, "waited for %d urb completions",
temp);
}
dev->wait = NULL;
remove_wait_queue(&unlink_wakeup, &wait);
}
#else
if (!(info->flags & FLAG_AVOID_UNLINK_URBS))
usbnet_terminate_urbs(dev);
#endif
usb_kill_urb(dev->interrupt);
usbnet_purge_paused_rxq(dev);
/* deferred work (task, timer, softirq) must also stop.
* can't flush_scheduled_work() until we drop rtnl (later),
* else workers could deadlock; so make workers a NOP.
*/
dev->flags = 0;
del_timer_sync (&dev->delay);
tasklet_kill (&dev->bh);
#if !defined(CONFIG_ERICSSON_F3307_ENABLE)
usb_autopm_put_interface(dev->intf);
#else
if (info->manage_power)
info->manage_power(dev, 0);
else
usb_autopm_put_interface(dev->intf);
#endif
return 0;
}