sound/usb/pcm.c

1267 			       struct urb *urb)
1281 	for (i = 0; i < urb->number_of_packets; i++) {
1282 		cp = (unsigned char *)urb->transfer_buffer + urb->iso_frame_desc[i].offset + subs->pkt_offset_adj;
1283 		if (urb->iso_frame_desc[i].status && printk_ratelimit()) {
1285 				i, urb->iso_frame_desc[i].status);
1288 		bytes = urb->iso_frame_desc[i].actual_length;
1302 				 "Corrected urb data len. %d->%d\n",
1338 				  struct urb *urb, unsigned int bytes)
1340 	struct snd_urb_ctx *ctx = urb->context;
1350 					     struct urb *urb, unsigned int bytes)
1356 	u8 *dst = urb->transfer_buffer;
1402 	urb_ctx_queue_advance(subs, urb, queued);
1407 					 struct urb *urb, unsigned int bytes)
1411 	u8 *buf = urb->transfer_buffer;
1420 	urb_ctx_queue_advance(subs, urb, bytes);
1423 static void copy_to_urb(struct snd_usb_substream *subs, struct urb *urb,
1432 		memcpy(urb->transfer_buffer + offset,
1434 		memcpy(urb->transfer_buffer + offset + bytes1,
1437 		memcpy(urb->transfer_buffer + offset,
1441 	urb_ctx_queue_advance(subs, urb, bytes);
1445 				      struct urb *urb, int stride,
1452 	for (i = 0; i < urb->number_of_packets; i++) {
1453 		unsigned int length = urb->iso_frame_desc[i].length;
1454 		unsigned int offset = urb->iso_frame_desc[i].offset;
1458 		urb->iso_frame_desc[i].offset = offset;
1459 		urb->iso_frame_desc[i].length += sizeof(packet_length);
1460 		memcpy(urb->transfer_buffer + offset,
1462 		copy_to_urb(subs, urb, offset + sizeof(packet_length),
1466 	bytes += urb->number_of_packets * sizeof(packet_length);
1471 				struct urb *urb,
1476 	struct snd_urb_ctx *ctx = urb->context;
1488 	urb->number_of_packets = 0;
1511 		urb->iso_frame_desc[i].offset = frames * stride;
1512 		urb->iso_frame_desc[i].length = counts * stride;
1515 		urb->number_of_packets++;
1527 					urb->iso_frame_desc[i].length =
1534 					urb->iso_frame_desc[i].offset =
1536 					urb->iso_frame_desc[i].length = 0;
1537 					urb->number_of_packets++;
1558 		fill_playback_urb_dsd_dop(subs, urb, bytes);
1561 		fill_playback_urb_dsd_bitrev(subs, urb, bytes);
1565 			copy_to_urb(subs, urb, 0, stride, bytes);
1567 			bytes = copy_to_urb_quirk(subs, urb, stride, bytes);
1590 	urb->transfer_buffer_length = bytes;
1605 			       struct urb *urb)
1608 	struct snd_urb_ctx *ctx = urb->context;