nfc/pn533/usb.c

61 	struct pn533_usb_phy *phy = urb->context;
67 			nfc_err(&phy->udev->dev, "failed to alloc memory\n");
74 	pn533_recv_frame(phy->priv, skb, urb->status);
77 static int pn533_submit_urb_for_response(struct pn533_usb_phy *phy, gfp_t flags)
79 	phy->in_urb->complete = pn533_recv_response;
81 	return usb_submit_urb(phy->in_urb, flags);
86 	struct pn533_usb_phy *phy = urb->context;
87 	struct pn533 *priv = phy->priv;
99 		dev_dbg(&phy->udev->dev,
105 		nfc_err(&phy->udev->dev,
110 	in_frame = phy->in_urb->transfer_buffer;
113 		nfc_err(&phy->udev->dev, "Received an invalid ack\n");
118 	rc = pn533_submit_urb_for_response(phy, GFP_ATOMIC);
120 		nfc_err(&phy->udev->dev,
132 static int pn533_submit_urb_for_ack(struct pn533_usb_phy *phy, gfp_t flags)
134 	phy->in_urb->complete = pn533_recv_ack;
136 	return usb_submit_urb(phy->in_urb, flags);
141 	struct pn533_usb_phy *phy = dev->phy;
145 	if (!phy->ack_buffer) {
146 		phy->ack_buffer = kmemdup(ack, sizeof(ack), flags);
147 		if (!phy->ack_buffer)
151 	phy->ack_urb->transfer_buffer = phy->ack_buffer;
152 	phy->ack_urb->transfer_buffer_length = sizeof(ack);
153 	return usb_submit_urb(phy->ack_urb, flags);
157 	struct pn533_usb_phy *phy;
164 	struct pn533_usb_phy *phy = dev->phy;
169 	if (phy->priv == NULL)
170 		phy->priv = dev;
172 	phy->out_urb->transfer_buffer = out->data;
173 	phy->out_urb->transfer_buffer_length = out->len;
178 	arg.phy = phy;
180 	cntx = phy->out_urb->context;
181 	phy->out_urb->context = &arg;
183 	rc = usb_submit_urb(phy->out_urb, GFP_KERNEL);
188 	phy->out_urb->context = cntx;
192 		rc = pn533_submit_urb_for_response(phy, GFP_KERNEL);
197 		rc = pn533_submit_urb_for_ack(phy, GFP_KERNEL);
205 	usb_unlink_urb(phy->out_urb);
211 	struct pn533_usb_phy *phy = dev->phy;
225 	usb_kill_urb(phy->in_urb);
380 static int pn533_acr122_poweron_rdr(struct pn533_usb_phy *phy)
396 	cntx = phy->in_urb->context;  /* backup context */
398 	phy->in_urb->complete = pn533_acr122_poweron_rdr_resp;
399 	phy->in_urb->context = &arg;
404 	rc = usb_bulk_msg(phy->udev, phy->out_urb->pipe, buffer, sizeof(cmd),
408 		nfc_err(&phy->udev->dev,
413 	rc =  usb_submit_urb(phy->in_urb, GFP_KERNEL);
415 		nfc_err(&phy->udev->dev,
421 	phy->in_urb->context = cntx; /* restore context */
429 	struct pn533_usb_phy *phy = arg->phy;
436 		dev_dbg(&phy->udev->dev,
442 		nfc_err(&phy->udev->dev,
452 	struct pn533_usb_phy *phy = urb->context;
459 		dev_dbg(&phy->udev->dev,
465 		nfc_err(&phy->udev->dev,
481 	struct pn533_usb_phy *phy;
496 	phy = devm_kzalloc(&interface->dev, sizeof(*phy), GFP_KERNEL);
497 	if (!phy)
504 	phy->udev = usb_get_dev(interface_to_usbdev(interface));
505 	phy->interface = interface;
525 	phy->in_urb = usb_alloc_urb(0, GFP_KERNEL);
526 	phy->out_urb = usb_alloc_urb(0, GFP_KERNEL);
527 	phy->ack_urb = usb_alloc_urb(0, GFP_KERNEL);
529 	if (!phy->in_urb || !phy->out_urb || !phy->ack_urb)
532 	usb_fill_bulk_urb(phy->in_urb, phy->udev,
533 			  usb_rcvbulkpipe(phy->udev, in_endpoint),
534 			  in_buf, in_buf_len, NULL, phy);
536 	usb_fill_bulk_urb(phy->out_urb, phy->udev,
537 			  usb_sndbulkpipe(phy->udev, out_endpoint),
538 			  NULL, 0, pn533_out_complete, phy);
539 	usb_fill_bulk_urb(phy->ack_urb, phy->udev,
540 			  usb_sndbulkpipe(phy->udev, out_endpoint),
541 			  NULL, 0, pn533_ack_complete, phy);
557 		rc = pn533_acr122_poweron_rdr(phy);
573 					phy, &usb_phy_ops, fops,
574 					&phy->udev->dev);
581 	phy->priv = priv;
587 	usb_set_intfdata(interface, phy);
597 	usb_kill_urb(phy->in_urb);
598 	usb_kill_urb(phy->out_urb);
599 	usb_kill_urb(phy->ack_urb);
601 	usb_free_urb(phy->in_urb);
602 	usb_free_urb(phy->out_urb);
603 	usb_free_urb(phy->ack_urb);
604 	usb_put_dev(phy->udev);
606 	kfree(phy->ack_buffer);
613 	struct pn533_usb_phy *phy = usb_get_intfdata(interface);
615 	if (!phy)
618 	pn53x_unregister_nfc(phy->priv);
619 	pn53x_common_clean(phy->priv);
623 	usb_kill_urb(phy->in_urb);
624 	usb_kill_urb(phy->out_urb);
625 	usb_kill_urb(phy->ack_urb);
627 	kfree(phy->in_urb->transfer_buffer);
628 	usb_free_urb(phy->in_urb);
629 	usb_free_urb(phy->out_urb);
630 	usb_free_urb(phy->ack_urb);
631 	kfree(phy->ack_buffer);