3400 				usecs += q->itd->stream->usecs;  in periodic_usecs()
3938 	struct fotg210_iso_stream *stream;  in iso_stream_alloc()  local
3940 	stream = kzalloc(sizeof(*stream), mem_flags);  in iso_stream_alloc()
3941 	if (likely(stream != NULL)) {  in iso_stream_alloc()
3942 		INIT_LIST_HEAD(&stream->td_list);  in iso_stream_alloc()
3943 		INIT_LIST_HEAD(&stream->free_list);  in iso_stream_alloc()
3944 		stream->next_uframe = -1;  in iso_stream_alloc()
3946 	return stream;  in iso_stream_alloc()
3950 		struct fotg210_iso_stream *stream, struct usb_device *dev,  in iso_stream_init()  argument
3976 	stream->buf0 = cpu_to_hc32(fotg210, (epnum << 8) | dev->devnum);  in iso_stream_init()
3977 	stream->buf1 = cpu_to_hc32(fotg210, buf1);  in iso_stream_init()
3978 	stream->buf2 = cpu_to_hc32(fotg210, multi);  in iso_stream_init()
3985 		stream->usecs = NS_TO_US(usb_calc_bus_time(dev->speed,  in iso_stream_init()
3987 		stream->usecs /= 8;  in iso_stream_init()
3989 		stream->highspeed = 1;  in iso_stream_init()
3990 		stream->usecs = HS_USECS_ISO(maxp);  in iso_stream_init()
3992 	bandwidth = stream->usecs * 8;  in iso_stream_init()
3995 	stream->bandwidth = bandwidth;  in iso_stream_init()
3996 	stream->udev = dev;  in iso_stream_init()
3997 	stream->bEndpointAddress = is_input | epnum;  in iso_stream_init()
3998 	stream->interval = interval;  in iso_stream_init()
3999 	stream->maxp = maxp;  in iso_stream_init()
4006 	struct fotg210_iso_stream *stream;  in iso_stream_find()  local
4017 	stream = ep->hcpriv;  in iso_stream_find()
4019 	if (unlikely(stream == NULL)) {  in iso_stream_find()
4020 		stream = iso_stream_alloc(GFP_ATOMIC);  in iso_stream_find()
4021 		if (likely(stream != NULL)) {  in iso_stream_find()
4022 			ep->hcpriv = stream;  in iso_stream_find()
4023 			stream->ep = ep;  in iso_stream_find()
4024 			iso_stream_init(fotg210, stream, urb->dev, urb->pipe,  in iso_stream_find()
4029 	} else if (unlikely(stream->hw != NULL)) {  in iso_stream_find()
4033 		stream = NULL;  in iso_stream_find()
4037 	return stream;  in iso_stream_find()
4058 		struct fotg210_iso_stream *stream, struct urb *urb)  in itd_sched_init()  argument
4064 	iso_sched->span = urb->number_of_packets * stream->interval;  in itd_sched_init()
4094 static void iso_sched_free(struct fotg210_iso_stream *stream,  in iso_sched_free()  argument
4100 	list_splice(&iso_sched->td_list, &stream->free_list);  in iso_sched_free()
4104 static int itd_urb_transaction(struct fotg210_iso_stream *stream,  in itd_urb_transaction()  argument
4118 	itd_sched_init(fotg210, sched, stream, urb);  in itd_urb_transaction()
4133 		if (likely(!list_empty(&stream->free_list))) {  in itd_urb_transaction()
4134 			itd = list_first_entry(&stream->free_list,  in itd_urb_transaction()
4147 				iso_sched_free(stream, sched);  in itd_urb_transaction()
4194 		struct fotg210_iso_stream *stream)  in iso_stream_schedule()  argument
4217 	if (likely(!list_empty(&stream->td_list))) {  in iso_stream_schedule()
4225 		if (!stream->highspeed && fotg210->fs_i_thresh)  in iso_stream_schedule()
4234 		excess = (stream->next_uframe - period - next) & (mod - 1);  in iso_stream_schedule()
4273 					stream->usecs, period))  in iso_stream_schedule()
4296 	stream->next_uframe = start & (mod - 1);  in iso_stream_schedule()
4299 	urb->start_frame = stream->next_uframe;  in iso_stream_schedule()
4300 	if (!stream->highspeed)  in iso_stream_schedule()
4309 	iso_sched_free(stream, sched);  in iso_stream_schedule()
4315 		struct fotg210_iso_stream *stream, struct fotg210_itd *itd)  in itd_init()  argument
4321 	itd->hw_bufp[0] = stream->buf0;  in itd_init()
4322 	itd->hw_bufp[1] = stream->buf1;  in itd_init()
4323 	itd->hw_bufp[2] = stream->buf2;  in itd_init()
4384 		unsigned mod, struct fotg210_iso_stream *stream)  in itd_link_urb()  argument
4391 	next_uframe = stream->next_uframe & (mod - 1);  in itd_link_urb()
4393 	if (unlikely(list_empty(&stream->td_list))) {  in itd_link_urb()
4395 				+= stream->bandwidth;  in itd_link_urb()
4398 			urb->dev->devpath, stream->bEndpointAddress & 0x0f,  in itd_link_urb()
4399 			(stream->bEndpointAddress & USB_DIR_IN) ? "in" : "out",  in itd_link_urb()
4413 			list_move_tail(&itd->itd_list, &stream->td_list);  in itd_link_urb()
4414 			itd->stream = stream;  in itd_link_urb()
4416 			itd_init(fotg210, stream, itd);  in itd_link_urb()
4424 		next_uframe += stream->interval;  in itd_link_urb()
4436 	stream->next_uframe = next_uframe;  in itd_link_urb()
4439 	iso_sched_free(stream, iso_sched);  in itd_link_urb()
4466 	struct fotg210_iso_stream *stream = itd->stream;  in itd_complete()  local
4526 	if (unlikely(list_is_singular(&stream->td_list))) {  in itd_complete()
4528 				-= stream->bandwidth;  in itd_complete()
4531 			dev->devpath, stream->bEndpointAddress & 0x0f,  in itd_complete()
4532 			(stream->bEndpointAddress & USB_DIR_IN) ? "in" : "out");  in itd_complete()
4539 	list_move_tail(&itd->itd_list, &stream->free_list);  in itd_complete()
4542 	if (list_empty(&stream->td_list)) {  in itd_complete()
4543 		list_splice_tail_init(&stream->free_list,  in itd_complete()
4556 	struct fotg210_iso_stream *stream;  in itd_submit()  local
4559 	stream = iso_stream_find(fotg210, urb);  in itd_submit()
4560 	if (unlikely(stream == NULL)) {  in itd_submit()
4564 	if (unlikely(urb->interval != stream->interval &&  in itd_submit()
4568 				stream->interval, urb->interval);  in itd_submit()
4580 			stream);  in itd_submit()
4584 	status = itd_urb_transaction(stream, fotg210, urb, mem_flags);  in itd_submit()
4599 	status = iso_stream_schedule(fotg210, urb, stream);  in itd_submit()
4601 		itd_link_urb(fotg210, urb, fotg210->periodic_size << 3, stream);  in itd_submit()
5426 		struct fotg210_iso_stream *stream = ep->hcpriv;  in fotg210_endpoint_disable()  local
5428 		if (!list_empty(&stream->td_list))  in fotg210_endpoint_disable()
5432 		kfree(stream);  in fotg210_endpoint_disable()