static int ar9170_resume(struct usb_interface *intf)
{
struct ar9170_usb *aru = usb_get_intfdata(intf);
int err;
if (!aru)
return -ENODEV;
usb_unpoison_anchored_urbs(&aru->rx_submitted);
usb_unpoison_anchored_urbs(&aru->tx_submitted);
err = ar9170_usb_init_device(aru);
if (err)
goto err_unrx;
err = ar9170_usb_open(&aru->common);
if (err)
goto err_unrx;
return 0;
err_unrx:
aru->common.state = AR9170_IDLE;
ar9170_usb_cancel_urbs(aru);
return err;
}
static int ar9170_usb_init_device(struct ar9170_usb *aru)
{
int err;
err = ar9170_usb_alloc_rx_irq_urb(aru);
if (err)
goto err_out;
err = ar9170_usb_alloc_rx_bulk_urbs(aru);
if (err)
goto err_unrx;
err = ar9170_usb_upload_firmware(aru);
if (err) {
err = ar9170_echo_test(&aru->common, 0x60d43110);
if (err) {
/* force user invention, by disabling the device */
err = usb_driver_set_configuration(aru->udev, -1);
dev_err(&aru->udev->dev, "device is in a bad state. "
"please reconnect it!\n");
goto err_unrx;
}
}
return 0;
err_unrx:
ar9170_usb_cancel_urbs(aru);
err_out:
return err;
}
static int ar9170_suspend(struct usb_interface *intf,
pm_message_t message)
{
struct ar9170_usb *aru = usb_get_intfdata(intf);
if (!aru)
return -ENODEV;
aru->common.state = AR9170_IDLE;
ar9170_usb_cancel_urbs(aru);
return 0;
}
static void ar9170_usb_disconnect(struct usb_interface *intf)
{
struct ar9170_usb *aru = usb_get_intfdata(intf);
if (!aru)
return;
aru->common.state = AR9170_IDLE;
ar9170_unregister(&aru->common);
ar9170_usb_cancel_urbs(aru);
release_firmware(aru->init_values);
release_firmware(aru->firmware);
usb_put_dev(aru->udev);
usb_set_intfdata(intf, NULL);
ieee80211_free_hw(aru->common.hw);
}
static void ar9170_usb_firmware_finish(const struct firmware *fw, void *context)
{
struct ar9170_usb *aru = context;
int err;
aru->firmware = fw;
if (!fw) {
dev_err(&aru->udev->dev, "firmware file not found.\n");
goto err_freefw;
}
err = ar9170_usb_init_device(aru);
if (err)
goto err_freefw;
err = ar9170_usb_open(&aru->common);
if (err)
goto err_unrx;
err = ar9170_register(&aru->common, &aru->udev->dev);
ar9170_usb_stop(&aru->common);
if (err)
goto err_unrx;
complete(&aru->firmware_loading_complete);
usb_put_dev(aru->udev);
return;
err_unrx:
ar9170_usb_cancel_urbs(aru);
err_freefw:
ar9170_usb_firmware_failed(aru);
}
static int ar9170_usb_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
struct ar9170_usb *aru;
struct ar9170 *ar;
struct usb_device *udev;
int err;
aru = ar9170_alloc(sizeof(*aru));
if (IS_ERR(aru)) {
err = PTR_ERR(aru);
goto out;
}
udev = interface_to_usbdev(intf);
usb_get_dev(udev);
aru->udev = udev;
aru->intf = intf;
ar = &aru->common;
aru->req_one_stage_fw = ar9170_requires_one_stage(id);
usb_set_intfdata(intf, aru);
SET_IEEE80211_DEV(ar->hw, &intf->dev);
init_usb_anchor(&aru->rx_submitted);
init_usb_anchor(&aru->tx_pending);
init_usb_anchor(&aru->tx_submitted);
init_completion(&aru->cmd_wait);
spin_lock_init(&aru->tx_urb_lock);
aru->tx_pending_urbs = 0;
aru->tx_submitted_urbs = 0;
aru->common.stop = ar9170_usb_stop;
aru->common.flush = ar9170_usb_flush;
aru->common.open = ar9170_usb_open;
aru->common.tx = ar9170_usb_tx;
aru->common.exec_cmd = ar9170_usb_exec_cmd;
aru->common.callback_cmd = ar9170_usb_callback_cmd;
#ifdef CONFIG_PM
udev->reset_resume = 1;
#endif /* CONFIG_PM */
err = ar9170_usb_reset(aru);
if (err)
goto err_freehw;
err = ar9170_usb_request_firmware(aru);
if (err)
goto err_freehw;
err = ar9170_usb_init_device(aru);
if (err)
goto err_freefw;
err = ar9170_usb_open(ar);
if (err)
goto err_unrx;
err = ar9170_register(ar, &udev->dev);
ar9170_usb_stop(ar);
if (err)
goto err_unrx;
return 0;
err_unrx:
ar9170_usb_cancel_urbs(aru);
err_freefw:
release_firmware(aru->init_values);
release_firmware(aru->firmware);
err_freehw:
usb_set_intfdata(intf, NULL);
usb_put_dev(udev);
ieee80211_free_hw(ar->hw);
out:
return err;
}