static int r92su_usb_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
struct r92su *r92su;
int err;
r92su = r92su_alloc(&intf->dev);
if (IS_ERR(r92su))
return PTR_ERR(r92su);
r92su->ep_num = intf->cur_altsetting->desc.bNumEndpoints;
r92su->ep_map = ep_maps[r92su->ep_num];
if (!r92su->ep_map) {
err = -EINVAL;
goto err_out;
}
if (id->driver_info & DISABLE_HT)
r92su->disable_ht = true;
r92su_set_state(r92su, R92SU_PROBE);
r92su->intf = intf;
intf->needs_binding = 1;
r92su->udev = interface_to_usbdev(intf);
usb_set_intfdata(intf, r92su);
init_usb_anchor(&r92su->rx_submitted);
init_usb_anchor(&r92su->tx_submitted);
init_usb_anchor(&r92su->tx_wait);
err = r92su_usb_init(r92su);
if (err)
goto err_out;
err = r92su_setup(r92su);
if (err)
goto err_out;
err = r92su_register(r92su);
if (err)
goto err_out;
return 0;
err_out:
r92su_unregister(r92su);
r92su_free(r92su);
return err;
}
static void r92su_usb_disconnect(struct usb_interface *intf)
{
struct r92su *r92su = usb_get_intfdata(intf);
struct urb *urb;
r92su_unregister(r92su);
/* give the disconnect command some time to finish... */
usb_wait_anchor_empty_timeout(&r92su->tx_submitted,
USB_CTRL_SET_TIMEOUT);
/* ... before everything is forcefully terminated */
usb_poison_anchored_urbs(&r92su->tx_submitted);
usb_poison_anchored_urbs(&r92su->rx_submitted);
while ((urb = usb_get_from_anchor(&r92su->tx_wait))) {
kfree_skb(urb->context);
usb_free_urb(urb);
}
r92su_free(r92su);
}
struct r92su *r92su_alloc(struct device *main_dev)
{
struct r92su *r92su = NULL;
struct wiphy *wiphy;
int err;
wiphy = wiphy_new(&r92su_cfg80211_ops, sizeof(struct r92su));
if (!wiphy) {
err = -ENOMEM;
goto err_out;
}
r92su = wiphy_priv(wiphy);
r92su->wdev.wiphy = wiphy;
mutex_init(&r92su->lock);
spin_lock_init(&r92su->rx_path);
if (modparam_noht)
r92su->disable_ht = true;
INIT_LIST_HEAD(&r92su->sta_list);
/* Note: The sta_lock is only needed, if an entry in the
* station list is updated. The station data itself is
* protected by RCU.
*/
spin_lock_init(&r92su->sta_lock);
set_wiphy_dev(r92su->wdev.wiphy, main_dev);
r92su->wdev.iftype = NL80211_IFTYPE_STATION;
wiphy->privid = r92su_priv_id;
wiphy->mgmt_stypes = r92su_default_mgmt_stypes;
wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
BIT(NL80211_IFTYPE_ADHOC) |
BIT(NL80211_IFTYPE_MONITOR);
wiphy->max_scan_ssids = 1;
wiphy->max_scan_ie_len = 256;
wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
wiphy->cipher_suites = r92su_chiper_suites;
wiphy->n_cipher_suites = ARRAY_SIZE(r92su_chiper_suites);
wiphy->bss_priv_size = sizeof(struct r92su_bss_priv);
init_completion(&r92su->scan_done);
init_llist_head(&r92su->add_bss_list);
INIT_WORK(&r92su->add_bss_work, r92su_bss_add_work);
INIT_WORK(&r92su->connect_bss_work, r92su_bss_connect_work);
INIT_WORK(&r92su->disconnect_work, r92su_disconnect_work);
INIT_DELAYED_WORK(&r92su->survey_done_work, r92su_survey_done_work);
r92su_hw_init(r92su);
r92su->wq = create_singlethread_workqueue(R92SU_DRVNAME);
if (!r92su->wq) {
err = -ENOMEM;
goto err_out;
}
return r92su;
err_out:
r92su_unregister(r92su);
r92su_free(r92su);
return ERR_PTR(err);
}
