227 static void stk1160_process_isoc(struct stk1160 *dev, struct urb *urb)  in stk1160_process_isoc()  argument
237 	if (urb->status < 0) {  in stk1160_process_isoc()
239 		print_err_status(dev, -1, urb->status);  in stk1160_process_isoc()
243 	for (i = 0; i < urb->number_of_packets; i++) {  in stk1160_process_isoc()
244 		status = urb->iso_frame_desc[i].status;  in stk1160_process_isoc()
251 		p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;  in stk1160_process_isoc()
252 		len = urb->iso_frame_desc[i].actual_length;  in stk1160_process_isoc()
305 static void stk1160_isoc_irq(struct urb *urb)  in stk1160_isoc_irq()  argument
308 	struct stk1160 *dev = urb->context;  in stk1160_isoc_irq()
310 	switch (urb->status) {  in stk1160_isoc_irq()
319 		stk1160_err("urb error! status %d\n", urb->status);  in stk1160_isoc_irq()
323 	stk1160_process_isoc(dev, urb);  in stk1160_isoc_irq()
326 	for (i = 0; i < urb->number_of_packets; i++) {  in stk1160_isoc_irq()
327 		urb->iso_frame_desc[i].status = 0;  in stk1160_isoc_irq()
328 		urb->iso_frame_desc[i].actual_length = 0;  in stk1160_isoc_irq()
331 	rc = usb_submit_urb(urb, GFP_ATOMIC);  in stk1160_isoc_irq()
360 		usb_kill_urb(dev->isoc_ctl.urb[i]);  in stk1160_cancel_isoc()
372 	struct urb *urb;  in stk1160_free_isoc()  local
379 		urb = dev->isoc_ctl.urb[i];  in stk1160_free_isoc()
380 		if (urb) {  in stk1160_free_isoc()
385 					urb->transfer_buffer_length,  in stk1160_free_isoc()
387 					urb->transfer_dma);  in stk1160_free_isoc()
392 			usb_free_urb(urb);  in stk1160_free_isoc()
393 			dev->isoc_ctl.urb[i] = NULL;  in stk1160_free_isoc()
398 	kfree(dev->isoc_ctl.urb);  in stk1160_free_isoc()
401 	dev->isoc_ctl.urb = NULL;  in stk1160_free_isoc()
423 	struct urb *urb;  in stk1160_alloc_isoc()  local
442 	dev->isoc_ctl.urb = kzalloc(sizeof(void *)*num_bufs, GFP_KERNEL);  in stk1160_alloc_isoc()
443 	if (!dev->isoc_ctl.urb) {  in stk1160_alloc_isoc()
452 		kfree(dev->isoc_ctl.urb);  in stk1160_alloc_isoc()
459 		urb = usb_alloc_urb(max_packets, GFP_KERNEL);  in stk1160_alloc_isoc()
460 		if (!urb)  in stk1160_alloc_isoc()
462 		dev->isoc_ctl.urb[i] = urb;  in stk1160_alloc_isoc()
466 			sb_size, GFP_KERNEL, &urb->transfer_dma);  in stk1160_alloc_isoc()
484 		urb->dev = dev->udev;  in stk1160_alloc_isoc()
485 		urb->pipe = usb_rcvisocpipe(dev->udev, STK1160_EP_VIDEO);  in stk1160_alloc_isoc()
486 		urb->transfer_buffer = dev->isoc_ctl.transfer_buffer[i];  in stk1160_alloc_isoc()
487 		urb->transfer_buffer_length = sb_size;  in stk1160_alloc_isoc()
488 		urb->complete = stk1160_isoc_irq;  in stk1160_alloc_isoc()
489 		urb->context = dev;  in stk1160_alloc_isoc()
490 		urb->interval = 1;  in stk1160_alloc_isoc()
491 		urb->start_frame = 0;  in stk1160_alloc_isoc()
492 		urb->number_of_packets = max_packets;  in stk1160_alloc_isoc()
494 		urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;  in stk1160_alloc_isoc()
496 		urb->transfer_flags = URB_ISO_ASAP;  in stk1160_alloc_isoc()
501 			urb->iso_frame_desc[j].offset = k;  in stk1160_alloc_isoc()
502 			urb->iso_frame_desc[j].length =  in stk1160_alloc_isoc()
521 	usb_free_urb(dev->isoc_ctl.urb[i]);  in stk1160_alloc_isoc()
522 	dev->isoc_ctl.urb[i] = NULL;  in stk1160_alloc_isoc()