net/ieee802154/atusb.c

59 	struct urb *tx_urb;
135 static void atusb_in(struct urb *urb);
137 static int atusb_submit_rx_urb(struct atusb *atusb, struct urb *urb)
140 	struct sk_buff *skb = urb->context;
154 	usb_fill_bulk_urb(urb, usb_dev, usb_rcvbulkpipe(usb_dev, 1),
156 	usb_anchor_urb(urb, &atusb->rx_urbs);
158 	ret = usb_submit_urb(urb, GFP_KERNEL);
160 		usb_unanchor_urb(urb);
162 		urb->context = NULL;
172 	struct urb *urb;
179 		urb = usb_get_from_anchor(&atusb->idle_urbs);
180 		if (!urb)
182 		ret = atusb_submit_rx_urb(atusb, urb);
185 	usb_anchor_urb(urb, &atusb->idle_urbs);
216 static void atusb_in_good(struct urb *urb)
218 	struct usb_device *usb_dev = urb->dev;
219 	struct sk_buff *skb = urb->context;
224 	if (!urb->actual_length) {
231 	switch (urb->actual_length) {
255 	if (len + 1 > urb->actual_length - 1) {
257 			len, urb->actual_length);
271 	urb->context = NULL;	/* skb is gone */
274 static void atusb_in(struct urb *urb)
276 	struct usb_device *usb_dev = urb->dev;
277 	struct sk_buff *skb = urb->context;
281 		urb->status, urb->actual_length);
282 	if (urb->status) {
283 		if (urb->status == -ENOENT) { /* being killed */
285 			urb->context = NULL;
288 		dev_dbg(&usb_dev->dev, "%s: URB error %d\n", __func__, urb->status);
290 		atusb_in_good(urb);
293 	usb_anchor_urb(urb, &atusb->idle_urbs);
302 	struct urb *urb;
305 		urb = usb_get_from_anchor(&atusb->idle_urbs);
306 		if (!urb)
308 		kfree_skb(urb->context);
309 		usb_free_urb(urb);
315 	struct urb *urb;
318 		urb = usb_alloc_urb(0, GFP_KERNEL);
319 		if (!urb) {
323 		usb_anchor_urb(urb, &atusb->idle_urbs);
324 		usb_free_urb(urb);
332 static void atusb_xmit_complete(struct urb *urb)
334 	dev_dbg(&urb->dev->dev, "atusb_xmit urb completed");