55 static int nfcmrvl_inc_tx(struct nfcmrvl_usb_drv_data *drv_data)  in nfcmrvl_inc_tx()  argument
60 	spin_lock_irqsave(&drv_data->txlock, flags);  in nfcmrvl_inc_tx()
61 	rv = test_bit(NFCMRVL_USB_SUSPENDING, &drv_data->flags);  in nfcmrvl_inc_tx()
63 		drv_data->tx_in_flight++;  in nfcmrvl_inc_tx()
64 	spin_unlock_irqrestore(&drv_data->txlock, flags);  in nfcmrvl_inc_tx()
71 	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",  in nfcmrvl_bulk_complete()
77 	if (!test_bit(NFCMRVL_NCI_RUNNING, &drv_data->flags))  in nfcmrvl_bulk_complete()
81 		if (nfcmrvl_nci_recv_frame(drv_data->priv, urb->transfer_buffer,  in nfcmrvl_bulk_complete()
83 			nfc_err(&drv_data->udev->dev, "corrupted Rx packet\n");  in nfcmrvl_bulk_complete()
86 	if (!test_bit(NFCMRVL_USB_BULK_RUNNING, &drv_data->flags))  in nfcmrvl_bulk_complete()
89 	usb_anchor_urb(urb, &drv_data->bulk_anchor);  in nfcmrvl_bulk_complete()
90 	usb_mark_last_busy(drv_data->udev);  in nfcmrvl_bulk_complete()
98 			nfc_err(&drv_data->udev->dev,  in nfcmrvl_bulk_complete()
105 nfcmrvl_submit_bulk_urb(struct nfcmrvl_usb_drv_data *drv_data, gfp_t mem_flags)  in nfcmrvl_submit_bulk_urb()  argument
112 	if (!drv_data->bulk_rx_ep)  in nfcmrvl_submit_bulk_urb()
125 	pipe = usb_rcvbulkpipe(drv_data->udev,  in nfcmrvl_submit_bulk_urb()
126 			       drv_data->bulk_rx_ep->bEndpointAddress);  in nfcmrvl_submit_bulk_urb()
128 	usb_fill_bulk_urb(urb, drv_data->udev, pipe, buf, size,  in nfcmrvl_submit_bulk_urb()
129 			  nfcmrvl_bulk_complete, drv_data);  in nfcmrvl_submit_bulk_urb()
133 	usb_mark_last_busy(drv_data->udev);  in nfcmrvl_submit_bulk_urb()
134 	usb_anchor_urb(urb, &drv_data->bulk_anchor);  in nfcmrvl_submit_bulk_urb()
139 			nfc_err(&drv_data->udev->dev,  in nfcmrvl_submit_bulk_urb()
154 	struct nfcmrvl_usb_drv_data *drv_data = priv->drv_data;  in nfcmrvl_tx_complete()  local
159 	spin_lock(&drv_data->txlock);  in nfcmrvl_tx_complete()
160 	drv_data->tx_in_flight--;  in nfcmrvl_tx_complete()
161 	spin_unlock(&drv_data->txlock);  in nfcmrvl_tx_complete()
169 	struct nfcmrvl_usb_drv_data *drv_data = priv->drv_data;  in nfcmrvl_usb_nci_open()  local
172 	err = usb_autopm_get_interface(drv_data->intf);  in nfcmrvl_usb_nci_open()
176 	drv_data->intf->needs_remote_wakeup = 1;  in nfcmrvl_usb_nci_open()
178 	err = nfcmrvl_submit_bulk_urb(drv_data, GFP_KERNEL);  in nfcmrvl_usb_nci_open()
182 	set_bit(NFCMRVL_USB_BULK_RUNNING, &drv_data->flags);  in nfcmrvl_usb_nci_open()
183 	nfcmrvl_submit_bulk_urb(drv_data, GFP_KERNEL);  in nfcmrvl_usb_nci_open()
185 	usb_autopm_put_interface(drv_data->intf);  in nfcmrvl_usb_nci_open()
189 	usb_autopm_put_interface(drv_data->intf);  in nfcmrvl_usb_nci_open()
193 static void nfcmrvl_usb_stop_traffic(struct nfcmrvl_usb_drv_data *drv_data)  in nfcmrvl_usb_stop_traffic()  argument
195 	usb_kill_anchored_urbs(&drv_data->bulk_anchor);  in nfcmrvl_usb_stop_traffic()
200 	struct nfcmrvl_usb_drv_data *drv_data = priv->drv_data;  in nfcmrvl_usb_nci_close()  local
203 	cancel_work_sync(&drv_data->waker);  in nfcmrvl_usb_nci_close()
205 	clear_bit(NFCMRVL_USB_BULK_RUNNING, &drv_data->flags);  in nfcmrvl_usb_nci_close()
207 	nfcmrvl_usb_stop_traffic(drv_data);  in nfcmrvl_usb_nci_close()
208 	usb_kill_anchored_urbs(&drv_data->tx_anchor);  in nfcmrvl_usb_nci_close()
209 	err = usb_autopm_get_interface(drv_data->intf);  in nfcmrvl_usb_nci_close()
213 	drv_data->intf->needs_remote_wakeup = 0;  in nfcmrvl_usb_nci_close()
214 	usb_autopm_put_interface(drv_data->intf);  in nfcmrvl_usb_nci_close()
217 	usb_scuttle_anchored_urbs(&drv_data->deferred);  in nfcmrvl_usb_nci_close()
224 	struct nfcmrvl_usb_drv_data *drv_data = priv->drv_data;  in nfcmrvl_usb_nci_send()  local
229 	if (!drv_data->bulk_tx_ep)  in nfcmrvl_usb_nci_send()
236 	pipe = usb_sndbulkpipe(drv_data->udev,  in nfcmrvl_usb_nci_send()
237 				drv_data->bulk_tx_ep->bEndpointAddress);  in nfcmrvl_usb_nci_send()
239 	usb_fill_bulk_urb(urb, drv_data->udev, pipe, skb->data, skb->len,  in nfcmrvl_usb_nci_send()
242 	err = nfcmrvl_inc_tx(drv_data);  in nfcmrvl_usb_nci_send()
244 		usb_anchor_urb(urb, &drv_data->deferred);  in nfcmrvl_usb_nci_send()
245 		schedule_work(&drv_data->waker);  in nfcmrvl_usb_nci_send()
250 	usb_anchor_urb(urb, &drv_data->tx_anchor);  in nfcmrvl_usb_nci_send()
255 			nfc_err(&drv_data->udev->dev,  in nfcmrvl_usb_nci_send()
260 		usb_mark_last_busy(drv_data->udev);  in nfcmrvl_usb_nci_send()
276 	struct nfcmrvl_usb_drv_data *drv_data =  in nfcmrvl_waker()  local
280 	err = usb_autopm_get_interface(drv_data->intf);  in nfcmrvl_waker()
284 	usb_autopm_put_interface(drv_data->intf);  in nfcmrvl_waker()
291 	struct nfcmrvl_usb_drv_data *drv_data;  in nfcmrvl_probe()  local
298 	drv_data = devm_kzalloc(&intf->dev, sizeof(*drv_data), GFP_KERNEL);  in nfcmrvl_probe()
299 	if (!drv_data)  in nfcmrvl_probe()
305 		if (!drv_data->bulk_tx_ep &&  in nfcmrvl_probe()
307 			drv_data->bulk_tx_ep = ep_desc;  in nfcmrvl_probe()
311 		if (!drv_data->bulk_rx_ep &&  in nfcmrvl_probe()
313 			drv_data->bulk_rx_ep = ep_desc;  in nfcmrvl_probe()
318 	if (!drv_data->bulk_tx_ep || !drv_data->bulk_rx_ep)  in nfcmrvl_probe()
321 	drv_data->udev = udev;  in nfcmrvl_probe()
322 	drv_data->intf = intf;  in nfcmrvl_probe()
324 	INIT_WORK(&drv_data->waker, nfcmrvl_waker);  in nfcmrvl_probe()
325 	spin_lock_init(&drv_data->txlock);  in nfcmrvl_probe()
327 	init_usb_anchor(&drv_data->tx_anchor);  in nfcmrvl_probe()
328 	init_usb_anchor(&drv_data->bulk_anchor);  in nfcmrvl_probe()
329 	init_usb_anchor(&drv_data->deferred);  in nfcmrvl_probe()
331 	priv = nfcmrvl_nci_register_dev(drv_data, &usb_ops,  in nfcmrvl_probe()
332 					&drv_data->udev->dev);  in nfcmrvl_probe()
336 	drv_data->priv = priv;  in nfcmrvl_probe()
337 	priv->dev = &drv_data->udev->dev;  in nfcmrvl_probe()
339 	usb_set_intfdata(intf, drv_data);  in nfcmrvl_probe()
346 	struct nfcmrvl_usb_drv_data *drv_data = usb_get_intfdata(intf);  in nfcmrvl_disconnect()  local
348 	if (!drv_data)  in nfcmrvl_disconnect()
351 	nfc_info(&drv_data->udev->dev, "intf %p\n", intf);  in nfcmrvl_disconnect()
353 	nfcmrvl_nci_unregister_dev(drv_data->priv);  in nfcmrvl_disconnect()
355 	usb_set_intfdata(drv_data->intf, NULL);  in nfcmrvl_disconnect()
361 	struct nfcmrvl_usb_drv_data *drv_data = usb_get_intfdata(intf);  in nfcmrvl_suspend()  local
363 	nfc_info(&drv_data->udev->dev, "intf %p\n", intf);  in nfcmrvl_suspend()
365 	if (drv_data->suspend_count++)  in nfcmrvl_suspend()
368 	spin_lock_irq(&drv_data->txlock);  in nfcmrvl_suspend()
369 	if (!(PMSG_IS_AUTO(message) && drv_data->tx_in_flight)) {  in nfcmrvl_suspend()
370 		set_bit(NFCMRVL_USB_SUSPENDING, &drv_data->flags);  in nfcmrvl_suspend()
371 		spin_unlock_irq(&drv_data->txlock);  in nfcmrvl_suspend()
373 		spin_unlock_irq(&drv_data->txlock);  in nfcmrvl_suspend()
374 		drv_data->suspend_count--;  in nfcmrvl_suspend()
378 	nfcmrvl_usb_stop_traffic(drv_data);  in nfcmrvl_suspend()
379 	usb_kill_anchored_urbs(&drv_data->tx_anchor);  in nfcmrvl_suspend()
384 static void nfcmrvl_play_deferred(struct nfcmrvl_usb_drv_data *drv_data)  in nfcmrvl_play_deferred()  argument
389 	while ((urb = usb_get_from_anchor(&drv_data->deferred))) {  in nfcmrvl_play_deferred()
394 		drv_data->tx_in_flight++;  in nfcmrvl_play_deferred()
396 	usb_scuttle_anchored_urbs(&drv_data->deferred);  in nfcmrvl_play_deferred()
401 	struct nfcmrvl_usb_drv_data *drv_data = usb_get_intfdata(intf);  in nfcmrvl_resume()  local
404 	nfc_info(&drv_data->udev->dev, "intf %p\n", intf);  in nfcmrvl_resume()
406 	if (--drv_data->suspend_count)  in nfcmrvl_resume()
409 	if (!test_bit(NFCMRVL_NCI_RUNNING, &drv_data->flags))  in nfcmrvl_resume()
412 	if (test_bit(NFCMRVL_USB_BULK_RUNNING, &drv_data->flags)) {  in nfcmrvl_resume()
413 		err = nfcmrvl_submit_bulk_urb(drv_data, GFP_NOIO);  in nfcmrvl_resume()
415 			clear_bit(NFCMRVL_USB_BULK_RUNNING, &drv_data->flags);  in nfcmrvl_resume()
419 		nfcmrvl_submit_bulk_urb(drv_data, GFP_NOIO);  in nfcmrvl_resume()
422 	spin_lock_irq(&drv_data->txlock);  in nfcmrvl_resume()
423 	nfcmrvl_play_deferred(drv_data);  in nfcmrvl_resume()
424 	clear_bit(NFCMRVL_USB_SUSPENDING, &drv_data->flags);  in nfcmrvl_resume()
425 	spin_unlock_irq(&drv_data->txlock);  in nfcmrvl_resume()
430 	usb_scuttle_anchored_urbs(&drv_data->deferred);  in nfcmrvl_resume()
432 	spin_lock_irq(&drv_data->txlock);  in nfcmrvl_resume()
433 	clear_bit(NFCMRVL_USB_SUSPENDING, &drv_data->flags);  in nfcmrvl_resume()
434 	spin_unlock_irq(&drv_data->txlock);  in nfcmrvl_resume()