54 static int nfcmrvl_inc_tx(struct nfcmrvl_usb_drv_data *drv_data)  in nfcmrvl_inc_tx()  argument
59 	spin_lock_irqsave(&drv_data->txlock, flags);  in nfcmrvl_inc_tx()
60 	rv = test_bit(NFCMRVL_USB_SUSPENDING, &drv_data->flags);  in nfcmrvl_inc_tx()
62 		drv_data->tx_in_flight++;  in nfcmrvl_inc_tx()
63 	spin_unlock_irqrestore(&drv_data->txlock, flags);  in nfcmrvl_inc_tx()
70 	struct nfcmrvl_usb_drv_data *drv_data = urb->context;  in nfcmrvl_bulk_complete()  local
74 	dev_dbg(&drv_data->udev->dev, "urb %p status %d count %d\n",  in nfcmrvl_bulk_complete()
77 	if (!test_bit(NFCMRVL_NCI_RUNNING, &drv_data->flags))  in nfcmrvl_bulk_complete()
81 		skb = nci_skb_alloc(drv_data->priv->ndev, urb->actual_length,  in nfcmrvl_bulk_complete()
84 			nfc_err(&drv_data->udev->dev, "failed to alloc mem\n");  in nfcmrvl_bulk_complete()
88 			if (nfcmrvl_nci_recv_frame(drv_data->priv, skb) < 0)  in nfcmrvl_bulk_complete()
89 				nfc_err(&drv_data->udev->dev,  in nfcmrvl_bulk_complete()
94 	if (!test_bit(NFCMRVL_USB_BULK_RUNNING, &drv_data->flags))  in nfcmrvl_bulk_complete()
97 	usb_anchor_urb(urb, &drv_data->bulk_anchor);  in nfcmrvl_bulk_complete()
98 	usb_mark_last_busy(drv_data->udev);  in nfcmrvl_bulk_complete()
106 			nfc_err(&drv_data->udev->dev,  in nfcmrvl_bulk_complete()
113 nfcmrvl_submit_bulk_urb(struct nfcmrvl_usb_drv_data *drv_data, gfp_t mem_flags)  in nfcmrvl_submit_bulk_urb()  argument
120 	if (!drv_data->bulk_rx_ep)  in nfcmrvl_submit_bulk_urb()
133 	pipe = usb_rcvbulkpipe(drv_data->udev,  in nfcmrvl_submit_bulk_urb()
134 			       drv_data->bulk_rx_ep->bEndpointAddress);  in nfcmrvl_submit_bulk_urb()
136 	usb_fill_bulk_urb(urb, drv_data->udev, pipe, buf, size,  in nfcmrvl_submit_bulk_urb()
137 			  nfcmrvl_bulk_complete, drv_data);  in nfcmrvl_submit_bulk_urb()
141 	usb_mark_last_busy(drv_data->udev);  in nfcmrvl_submit_bulk_urb()
142 	usb_anchor_urb(urb, &drv_data->bulk_anchor);  in nfcmrvl_submit_bulk_urb()
147 			nfc_err(&drv_data->udev->dev,  in nfcmrvl_submit_bulk_urb()
162 	struct nfcmrvl_usb_drv_data *drv_data = priv->drv_data;  in nfcmrvl_tx_complete()  local
168 	spin_lock_irqsave(&drv_data->txlock, flags);  in nfcmrvl_tx_complete()
169 	drv_data->tx_in_flight--;  in nfcmrvl_tx_complete()
170 	spin_unlock_irqrestore(&drv_data->txlock, flags);  in nfcmrvl_tx_complete()
178 	struct nfcmrvl_usb_drv_data *drv_data = priv->drv_data;  in nfcmrvl_usb_nci_open()  local
181 	err = usb_autopm_get_interface(drv_data->intf);  in nfcmrvl_usb_nci_open()
185 	drv_data->intf->needs_remote_wakeup = 1;  in nfcmrvl_usb_nci_open()
187 	err = nfcmrvl_submit_bulk_urb(drv_data, GFP_KERNEL);  in nfcmrvl_usb_nci_open()
191 	set_bit(NFCMRVL_USB_BULK_RUNNING, &drv_data->flags);  in nfcmrvl_usb_nci_open()
192 	nfcmrvl_submit_bulk_urb(drv_data, GFP_KERNEL);  in nfcmrvl_usb_nci_open()
194 	usb_autopm_put_interface(drv_data->intf);  in nfcmrvl_usb_nci_open()
198 	usb_autopm_put_interface(drv_data->intf);  in nfcmrvl_usb_nci_open()
202 static void nfcmrvl_usb_stop_traffic(struct nfcmrvl_usb_drv_data *drv_data)  in nfcmrvl_usb_stop_traffic()  argument
204 	usb_kill_anchored_urbs(&drv_data->bulk_anchor);  in nfcmrvl_usb_stop_traffic()
209 	struct nfcmrvl_usb_drv_data *drv_data = priv->drv_data;  in nfcmrvl_usb_nci_close()  local
212 	cancel_work_sync(&drv_data->waker);  in nfcmrvl_usb_nci_close()
214 	clear_bit(NFCMRVL_USB_BULK_RUNNING, &drv_data->flags);  in nfcmrvl_usb_nci_close()
216 	nfcmrvl_usb_stop_traffic(drv_data);  in nfcmrvl_usb_nci_close()
217 	usb_kill_anchored_urbs(&drv_data->tx_anchor);  in nfcmrvl_usb_nci_close()
218 	err = usb_autopm_get_interface(drv_data->intf);  in nfcmrvl_usb_nci_close()
222 	drv_data->intf->needs_remote_wakeup = 0;  in nfcmrvl_usb_nci_close()
223 	usb_autopm_put_interface(drv_data->intf);  in nfcmrvl_usb_nci_close()
226 	usb_scuttle_anchored_urbs(&drv_data->deferred);  in nfcmrvl_usb_nci_close()
233 	struct nfcmrvl_usb_drv_data *drv_data = priv->drv_data;  in nfcmrvl_usb_nci_send()  local
238 	if (!drv_data->bulk_tx_ep)  in nfcmrvl_usb_nci_send()
245 	pipe = usb_sndbulkpipe(drv_data->udev,  in nfcmrvl_usb_nci_send()
246 				drv_data->bulk_tx_ep->bEndpointAddress);  in nfcmrvl_usb_nci_send()
248 	usb_fill_bulk_urb(urb, drv_data->udev, pipe, skb->data, skb->len,  in nfcmrvl_usb_nci_send()
251 	err = nfcmrvl_inc_tx(drv_data);  in nfcmrvl_usb_nci_send()
253 		usb_anchor_urb(urb, &drv_data->deferred);  in nfcmrvl_usb_nci_send()
254 		schedule_work(&drv_data->waker);  in nfcmrvl_usb_nci_send()
259 	usb_anchor_urb(urb, &drv_data->tx_anchor);  in nfcmrvl_usb_nci_send()
264 			nfc_err(&drv_data->udev->dev,  in nfcmrvl_usb_nci_send()
269 		usb_mark_last_busy(drv_data->udev);  in nfcmrvl_usb_nci_send()
285 	struct nfcmrvl_usb_drv_data *drv_data =  in nfcmrvl_waker()  local
289 	err = usb_autopm_get_interface(drv_data->intf);  in nfcmrvl_waker()
293 	usb_autopm_put_interface(drv_data->intf);  in nfcmrvl_waker()
300 	struct nfcmrvl_usb_drv_data *drv_data;  in nfcmrvl_probe()  local
312 	drv_data = devm_kzalloc(&intf->dev, sizeof(*drv_data), GFP_KERNEL);  in nfcmrvl_probe()
313 	if (!drv_data)  in nfcmrvl_probe()
319 		if (!drv_data->bulk_tx_ep &&  in nfcmrvl_probe()
321 			drv_data->bulk_tx_ep = ep_desc;  in nfcmrvl_probe()
325 		if (!drv_data->bulk_rx_ep &&  in nfcmrvl_probe()
327 			drv_data->bulk_rx_ep = ep_desc;  in nfcmrvl_probe()
332 	if (!drv_data->bulk_tx_ep || !drv_data->bulk_rx_ep)  in nfcmrvl_probe()
335 	drv_data->udev = udev;  in nfcmrvl_probe()
336 	drv_data->intf = intf;  in nfcmrvl_probe()
338 	INIT_WORK(&drv_data->waker, nfcmrvl_waker);  in nfcmrvl_probe()
339 	spin_lock_init(&drv_data->txlock);  in nfcmrvl_probe()
341 	init_usb_anchor(&drv_data->tx_anchor);  in nfcmrvl_probe()
342 	init_usb_anchor(&drv_data->bulk_anchor);  in nfcmrvl_probe()
343 	init_usb_anchor(&drv_data->deferred);  in nfcmrvl_probe()
345 	priv = nfcmrvl_nci_register_dev(NFCMRVL_PHY_USB, drv_data, &usb_ops,  in nfcmrvl_probe()
350 	drv_data->priv = priv;  in nfcmrvl_probe()
351 	drv_data->priv->support_fw_dnld = false;  in nfcmrvl_probe()
353 	usb_set_intfdata(intf, drv_data);  in nfcmrvl_probe()
360 	struct nfcmrvl_usb_drv_data *drv_data = usb_get_intfdata(intf);  in nfcmrvl_disconnect()  local
362 	if (!drv_data)  in nfcmrvl_disconnect()
365 	nfc_info(&drv_data->udev->dev, "intf %p\n", intf);  in nfcmrvl_disconnect()
367 	nfcmrvl_nci_unregister_dev(drv_data->priv);  in nfcmrvl_disconnect()
369 	usb_set_intfdata(drv_data->intf, NULL);  in nfcmrvl_disconnect()
375 	struct nfcmrvl_usb_drv_data *drv_data = usb_get_intfdata(intf);  in nfcmrvl_suspend()  local
377 	nfc_info(&drv_data->udev->dev, "intf %p\n", intf);  in nfcmrvl_suspend()
379 	if (drv_data->suspend_count++)  in nfcmrvl_suspend()
382 	spin_lock_irq(&drv_data->txlock);  in nfcmrvl_suspend()
383 	if (!(PMSG_IS_AUTO(message) && drv_data->tx_in_flight)) {  in nfcmrvl_suspend()
384 		set_bit(NFCMRVL_USB_SUSPENDING, &drv_data->flags);  in nfcmrvl_suspend()
385 		spin_unlock_irq(&drv_data->txlock);  in nfcmrvl_suspend()
387 		spin_unlock_irq(&drv_data->txlock);  in nfcmrvl_suspend()
388 		drv_data->suspend_count--;  in nfcmrvl_suspend()
392 	nfcmrvl_usb_stop_traffic(drv_data);  in nfcmrvl_suspend()
393 	usb_kill_anchored_urbs(&drv_data->tx_anchor);  in nfcmrvl_suspend()
398 static void nfcmrvl_play_deferred(struct nfcmrvl_usb_drv_data *drv_data)  in nfcmrvl_play_deferred()  argument
403 	while ((urb = usb_get_from_anchor(&drv_data->deferred))) {  in nfcmrvl_play_deferred()
408 		drv_data->tx_in_flight++;  in nfcmrvl_play_deferred()
410 	usb_scuttle_anchored_urbs(&drv_data->deferred);  in nfcmrvl_play_deferred()
415 	struct nfcmrvl_usb_drv_data *drv_data = usb_get_intfdata(intf);  in nfcmrvl_resume()  local
418 	nfc_info(&drv_data->udev->dev, "intf %p\n", intf);  in nfcmrvl_resume()
420 	if (--drv_data->suspend_count)  in nfcmrvl_resume()
423 	if (!test_bit(NFCMRVL_NCI_RUNNING, &drv_data->flags))  in nfcmrvl_resume()
426 	if (test_bit(NFCMRVL_USB_BULK_RUNNING, &drv_data->flags)) {  in nfcmrvl_resume()
427 		err = nfcmrvl_submit_bulk_urb(drv_data, GFP_NOIO);  in nfcmrvl_resume()
429 			clear_bit(NFCMRVL_USB_BULK_RUNNING, &drv_data->flags);  in nfcmrvl_resume()
433 		nfcmrvl_submit_bulk_urb(drv_data, GFP_NOIO);  in nfcmrvl_resume()
436 	spin_lock_irq(&drv_data->txlock);  in nfcmrvl_resume()
437 	nfcmrvl_play_deferred(drv_data);  in nfcmrvl_resume()
438 	clear_bit(NFCMRVL_USB_SUSPENDING, &drv_data->flags);  in nfcmrvl_resume()
439 	spin_unlock_irq(&drv_data->txlock);  in nfcmrvl_resume()
444 	usb_scuttle_anchored_urbs(&drv_data->deferred);  in nfcmrvl_resume()
446 	spin_lock_irq(&drv_data->txlock);  in nfcmrvl_resume()
447 	clear_bit(NFCMRVL_USB_SUSPENDING, &drv_data->flags);  in nfcmrvl_resume()
448 	spin_unlock_irq(&drv_data->txlock);  in nfcmrvl_resume()