43 static int nfcmrvl_inc_tx(struct nfcmrvl_usb_drv_data *drv_data)  in nfcmrvl_inc_tx()  argument
48 	spin_lock_irqsave(&drv_data->txlock, flags);  in nfcmrvl_inc_tx()
49 	rv = test_bit(NFCMRVL_USB_SUSPENDING, &drv_data->flags);  in nfcmrvl_inc_tx()
51 		drv_data->tx_in_flight++;  in nfcmrvl_inc_tx()
52 	spin_unlock_irqrestore(&drv_data->txlock, flags);  in nfcmrvl_inc_tx()
59 	struct nfcmrvl_usb_drv_data *drv_data = urb->context;  in nfcmrvl_bulk_complete()  local
62 	dev_dbg(&drv_data->udev->dev, "urb %p status %d count %d\n",  in nfcmrvl_bulk_complete()
65 	if (!test_bit(NFCMRVL_NCI_RUNNING, &drv_data->flags))  in nfcmrvl_bulk_complete()
71 		skb = nci_skb_alloc(drv_data->priv->ndev, urb->actual_length,  in nfcmrvl_bulk_complete()
74 			nfc_err(&drv_data->udev->dev, "failed to alloc mem\n");  in nfcmrvl_bulk_complete()
78 			if (nfcmrvl_nci_recv_frame(drv_data->priv, skb) < 0)  in nfcmrvl_bulk_complete()
79 				nfc_err(&drv_data->udev->dev,  in nfcmrvl_bulk_complete()
84 	if (!test_bit(NFCMRVL_USB_BULK_RUNNING, &drv_data->flags))  in nfcmrvl_bulk_complete()
87 	usb_anchor_urb(urb, &drv_data->bulk_anchor);  in nfcmrvl_bulk_complete()
88 	usb_mark_last_busy(drv_data->udev);  in nfcmrvl_bulk_complete()
96 			nfc_err(&drv_data->udev->dev,  in nfcmrvl_bulk_complete()
103 nfcmrvl_submit_bulk_urb(struct nfcmrvl_usb_drv_data *drv_data, gfp_t mem_flags)  in nfcmrvl_submit_bulk_urb()  argument
110 	if (!drv_data->bulk_rx_ep)  in nfcmrvl_submit_bulk_urb()
123 	pipe = usb_rcvbulkpipe(drv_data->udev,  in nfcmrvl_submit_bulk_urb()
124 			       drv_data->bulk_rx_ep->bEndpointAddress);  in nfcmrvl_submit_bulk_urb()
126 	usb_fill_bulk_urb(urb, drv_data->udev, pipe, buf, size,  in nfcmrvl_submit_bulk_urb()
127 			  nfcmrvl_bulk_complete, drv_data);  in nfcmrvl_submit_bulk_urb()
131 	usb_mark_last_busy(drv_data->udev);  in nfcmrvl_submit_bulk_urb()
132 	usb_anchor_urb(urb, &drv_data->bulk_anchor);  in nfcmrvl_submit_bulk_urb()
137 			nfc_err(&drv_data->udev->dev,  in nfcmrvl_submit_bulk_urb()
152 	struct nfcmrvl_usb_drv_data *drv_data = priv->drv_data;  in nfcmrvl_tx_complete()  local
158 	spin_lock_irqsave(&drv_data->txlock, flags);  in nfcmrvl_tx_complete()
159 	drv_data->tx_in_flight--;  in nfcmrvl_tx_complete()
160 	spin_unlock_irqrestore(&drv_data->txlock, flags);  in nfcmrvl_tx_complete()
168 	struct nfcmrvl_usb_drv_data *drv_data = priv->drv_data;  in nfcmrvl_usb_nci_open()  local
171 	err = usb_autopm_get_interface(drv_data->intf);  in nfcmrvl_usb_nci_open()
175 	drv_data->intf->needs_remote_wakeup = 1;  in nfcmrvl_usb_nci_open()
177 	err = nfcmrvl_submit_bulk_urb(drv_data, GFP_KERNEL);  in nfcmrvl_usb_nci_open()
181 	set_bit(NFCMRVL_USB_BULK_RUNNING, &drv_data->flags);  in nfcmrvl_usb_nci_open()
182 	nfcmrvl_submit_bulk_urb(drv_data, GFP_KERNEL);  in nfcmrvl_usb_nci_open()
184 	usb_autopm_put_interface(drv_data->intf);  in nfcmrvl_usb_nci_open()
188 	usb_autopm_put_interface(drv_data->intf);  in nfcmrvl_usb_nci_open()
192 static void nfcmrvl_usb_stop_traffic(struct nfcmrvl_usb_drv_data *drv_data)  in nfcmrvl_usb_stop_traffic()  argument
194 	usb_kill_anchored_urbs(&drv_data->bulk_anchor);  in nfcmrvl_usb_stop_traffic()
199 	struct nfcmrvl_usb_drv_data *drv_data = priv->drv_data;  in nfcmrvl_usb_nci_close()  local
202 	cancel_work_sync(&drv_data->waker);  in nfcmrvl_usb_nci_close()
204 	clear_bit(NFCMRVL_USB_BULK_RUNNING, &drv_data->flags);  in nfcmrvl_usb_nci_close()
206 	nfcmrvl_usb_stop_traffic(drv_data);  in nfcmrvl_usb_nci_close()
207 	usb_kill_anchored_urbs(&drv_data->tx_anchor);  in nfcmrvl_usb_nci_close()
208 	err = usb_autopm_get_interface(drv_data->intf);  in nfcmrvl_usb_nci_close()
212 	drv_data->intf->needs_remote_wakeup = 0;  in nfcmrvl_usb_nci_close()
213 	usb_autopm_put_interface(drv_data->intf);  in nfcmrvl_usb_nci_close()
216 	usb_scuttle_anchored_urbs(&drv_data->deferred);  in nfcmrvl_usb_nci_close()
223 	struct nfcmrvl_usb_drv_data *drv_data = priv->drv_data;  in nfcmrvl_usb_nci_send()  local
228 	if (!drv_data->bulk_tx_ep)  in nfcmrvl_usb_nci_send()
235 	pipe = usb_sndbulkpipe(drv_data->udev,  in nfcmrvl_usb_nci_send()
236 				drv_data->bulk_tx_ep->bEndpointAddress);  in nfcmrvl_usb_nci_send()
238 	usb_fill_bulk_urb(urb, drv_data->udev, pipe, skb->data, skb->len,  in nfcmrvl_usb_nci_send()
241 	err = nfcmrvl_inc_tx(drv_data);  in nfcmrvl_usb_nci_send()
243 		usb_anchor_urb(urb, &drv_data->deferred);  in nfcmrvl_usb_nci_send()
244 		schedule_work(&drv_data->waker);  in nfcmrvl_usb_nci_send()
249 	usb_anchor_urb(urb, &drv_data->tx_anchor);  in nfcmrvl_usb_nci_send()
254 			nfc_err(&drv_data->udev->dev,  in nfcmrvl_usb_nci_send()
259 		usb_mark_last_busy(drv_data->udev);  in nfcmrvl_usb_nci_send()
275 	struct nfcmrvl_usb_drv_data *drv_data =  in nfcmrvl_waker()  local
279 	err = usb_autopm_get_interface(drv_data->intf);  in nfcmrvl_waker()
283 	usb_autopm_put_interface(drv_data->intf);  in nfcmrvl_waker()
289 	struct nfcmrvl_usb_drv_data *drv_data;  in nfcmrvl_probe()  local
301 	drv_data = devm_kzalloc(&intf->dev, sizeof(*drv_data), GFP_KERNEL);  in nfcmrvl_probe()
302 	if (!drv_data)  in nfcmrvl_probe()
310 		if (!drv_data->bulk_tx_ep &&  in nfcmrvl_probe()
312 			drv_data->bulk_tx_ep = ep_desc;  in nfcmrvl_probe()
313 		} else if (!drv_data->bulk_rx_ep &&  in nfcmrvl_probe()
315 			drv_data->bulk_rx_ep = ep_desc;  in nfcmrvl_probe()
319 	if (!drv_data->bulk_tx_ep || !drv_data->bulk_rx_ep)  in nfcmrvl_probe()
322 	drv_data->udev = udev;  in nfcmrvl_probe()
323 	drv_data->intf = intf;  in nfcmrvl_probe()
325 	INIT_WORK(&drv_data->waker, nfcmrvl_waker);  in nfcmrvl_probe()
326 	spin_lock_init(&drv_data->txlock);  in nfcmrvl_probe()
328 	init_usb_anchor(&drv_data->tx_anchor);  in nfcmrvl_probe()
329 	init_usb_anchor(&drv_data->bulk_anchor);  in nfcmrvl_probe()
330 	init_usb_anchor(&drv_data->deferred);  in nfcmrvl_probe()
332 	priv = nfcmrvl_nci_register_dev(NFCMRVL_PHY_USB, drv_data, &usb_ops,  in nfcmrvl_probe()
337 	drv_data->priv = priv;  in nfcmrvl_probe()
338 	drv_data->priv->support_fw_dnld = false;  in nfcmrvl_probe()
340 	usb_set_intfdata(intf, drv_data);  in nfcmrvl_probe()
347 	struct nfcmrvl_usb_drv_data *drv_data = usb_get_intfdata(intf);  in nfcmrvl_disconnect()  local
349 	if (!drv_data)  in nfcmrvl_disconnect()
352 	nfc_info(&drv_data->udev->dev, "intf %p\n", intf);  in nfcmrvl_disconnect()
354 	nfcmrvl_nci_unregister_dev(drv_data->priv);  in nfcmrvl_disconnect()
356 	usb_set_intfdata(drv_data->intf, NULL);  in nfcmrvl_disconnect()
362 	struct nfcmrvl_usb_drv_data *drv_data = usb_get_intfdata(intf);  in nfcmrvl_suspend()  local
364 	nfc_info(&drv_data->udev->dev, "intf %p\n", intf);  in nfcmrvl_suspend()
366 	if (drv_data->suspend_count++)  in nfcmrvl_suspend()
369 	spin_lock_irq(&drv_data->txlock);  in nfcmrvl_suspend()
370 	if (!(PMSG_IS_AUTO(message) && drv_data->tx_in_flight)) {  in nfcmrvl_suspend()
371 		set_bit(NFCMRVL_USB_SUSPENDING, &drv_data->flags);  in nfcmrvl_suspend()
372 		spin_unlock_irq(&drv_data->txlock);  in nfcmrvl_suspend()
374 		spin_unlock_irq(&drv_data->txlock);  in nfcmrvl_suspend()
375 		drv_data->suspend_count--;  in nfcmrvl_suspend()
379 	nfcmrvl_usb_stop_traffic(drv_data);  in nfcmrvl_suspend()
380 	usb_kill_anchored_urbs(&drv_data->tx_anchor);  in nfcmrvl_suspend()
385 static void nfcmrvl_play_deferred(struct nfcmrvl_usb_drv_data *drv_data)  in nfcmrvl_play_deferred()  argument
390 	while ((urb = usb_get_from_anchor(&drv_data->deferred))) {  in nfcmrvl_play_deferred()
391 		usb_anchor_urb(urb, &drv_data->tx_anchor);  in nfcmrvl_play_deferred()
401 		drv_data->tx_in_flight++;  in nfcmrvl_play_deferred()
406 	while ((urb = usb_get_from_anchor(&drv_data->deferred))) {  in nfcmrvl_play_deferred()
414 	struct nfcmrvl_usb_drv_data *drv_data = usb_get_intfdata(intf);  in nfcmrvl_resume()  local
417 	nfc_info(&drv_data->udev->dev, "intf %p\n", intf);  in nfcmrvl_resume()
419 	if (--drv_data->suspend_count)  in nfcmrvl_resume()
422 	if (!test_bit(NFCMRVL_NCI_RUNNING, &drv_data->flags))  in nfcmrvl_resume()
425 	if (test_bit(NFCMRVL_USB_BULK_RUNNING, &drv_data->flags)) {  in nfcmrvl_resume()
426 		err = nfcmrvl_submit_bulk_urb(drv_data, GFP_NOIO);  in nfcmrvl_resume()
428 			clear_bit(NFCMRVL_USB_BULK_RUNNING, &drv_data->flags);  in nfcmrvl_resume()
432 		nfcmrvl_submit_bulk_urb(drv_data, GFP_NOIO);  in nfcmrvl_resume()
435 	spin_lock_irq(&drv_data->txlock);  in nfcmrvl_resume()
436 	nfcmrvl_play_deferred(drv_data);  in nfcmrvl_resume()
437 	clear_bit(NFCMRVL_USB_SUSPENDING, &drv_data->flags);  in nfcmrvl_resume()
438 	spin_unlock_irq(&drv_data->txlock);  in nfcmrvl_resume()
443 	usb_scuttle_anchored_urbs(&drv_data->deferred);  in nfcmrvl_resume()
445 	spin_lock_irq(&drv_data->txlock);  in nfcmrvl_resume()
446 	clear_bit(NFCMRVL_USB_SUSPENDING, &drv_data->flags);  in nfcmrvl_resume()
447 	spin_unlock_irq(&drv_data->txlock);  in nfcmrvl_resume()