gadget/function/f_ncm.c

32  * Note that NCM requires the use of "alternate settings" for its data
140 #define NCM_STATUS_BYTECOUNT		16	/* 8 byte header + data */
147 	.bInterfaceCount =	2,	/* control + data */
208 /* the default data interface has no endpoints ... */
223 /* ... but the "real" data interface has two bulk endpoints */
275 	/* data interface, altsettings 0 and 1 */
321 	/* data interface, altsettings 0 and 1 */
389 	/* data interface, altsettings 0 and 1 */
539 	__le32				*data;
571 		/* SPEED_CHANGE data is up/down speeds in bits/sec */
572 		data = req->buf + sizeof *event;
573 		data[0] = cpu_to_le32(gether_bitrate(cdev->gadget));
574 		data[1] = data[0];
694 		 * see 6.2.30: no data, wIndex = interface,
837 	/* respond with data transfer or status phase? */
889 		 * CDC Network only sends data in non-default altsettings.
934  * Because the data interface supports multiple altsettings,
967 	ntb_iter = (void *) ncm->skb_tx_data->data;
978 	ntb_iter = (void *) ncm->skb_tx_ndp->data;
993 	skb_put_data(skb2, ncm->skb_tx_ndp->data, ncm->skb_tx_ndp->len);
1028 					skb->data,
1036 		 * ready for new data.
1109 		/* Add the new data to the skb */
1111 		skb_put_data(ncm->skb_tx_data, skb->data, skb->len);
1141  * The transmit should only be run if no skb data has been sent
1144 static enum hrtimer_restart ncm_tx_timeout(struct hrtimer *data)
1146 	struct f_ncm *ncm = container_of(data, struct f_ncm, task_timer);
1168 	unsigned char	*ntb_ptr = skb->data;
1196 			       skb->data, 32, false);
1317 			 * Copy the data into a new skb.
1391  *   - configured but inactive (data alt 0)
1392  *   - configured and active (data alt 1)
1397  * likewise that "active" doesn't imply it's actually using the data