373 	struct zd_usb_interrupt *intr = &usb->intr;  in handle_regs_int_override()  local
375 	spin_lock(&intr->lock);  in handle_regs_int_override()
376 	if (atomic_read(&intr->read_regs_enabled)) {  in handle_regs_int_override()
377 		atomic_set(&intr->read_regs_enabled, 0);  in handle_regs_int_override()
378 		intr->read_regs_int_overridden = 1;  in handle_regs_int_override()
379 		complete(&intr->read_regs.completion);  in handle_regs_int_override()
381 	spin_unlock(&intr->lock);  in handle_regs_int_override()
387 	struct zd_usb_interrupt *intr = &usb->intr;  in handle_regs_int()  local
392 	spin_lock(&intr->lock);  in handle_regs_int()
402 	} else if (atomic_read(&intr->read_regs_enabled)) {  in handle_regs_int()
404 		intr->read_regs.length = urb->actual_length;  in handle_regs_int()
405 		if (len > sizeof(intr->read_regs.buffer))  in handle_regs_int()
406 			len = sizeof(intr->read_regs.buffer);  in handle_regs_int()
408 		memcpy(intr->read_regs.buffer, urb->transfer_buffer, len);  in handle_regs_int()
416 		if (!check_read_regs(usb, intr->read_regs.req,  in handle_regs_int()
417 						intr->read_regs.req_count))  in handle_regs_int()
420 		atomic_set(&intr->read_regs_enabled, 0);  in handle_regs_int()
421 		intr->read_regs_int_overridden = 0;  in handle_regs_int()
422 		complete(&intr->read_regs.completion);  in handle_regs_int()
428 	spin_unlock(&intr->lock);  in handle_regs_int()
431 	if (int_num == CR_INTERRUPT && atomic_read(&intr->read_regs_enabled))  in handle_regs_int()
440 	struct zd_usb_interrupt *intr;  in int_urb_complete()  local
473 	intr = &usb->intr;  in int_urb_complete()
474 	if (hdr->id != USB_INT_ID_REGS && atomic_read(&intr->read_regs_enabled))  in int_urb_complete()
516 	struct zd_usb_interrupt *intr = &usb->intr;  in usb_int_enabled()  local
519 	spin_lock_irqsave(&intr->lock, flags);  in usb_int_enabled()
520 	urb = intr->urb;  in usb_int_enabled()
521 	spin_unlock_irqrestore(&intr->lock, flags);  in usb_int_enabled()
529 	struct zd_usb_interrupt *intr = &usb->intr;  in zd_usb_enable_int()  local
541 	spin_lock_irq(&intr->lock);  in zd_usb_enable_int()
542 	if (intr->urb) {  in zd_usb_enable_int()
543 		spin_unlock_irq(&intr->lock);  in zd_usb_enable_int()
547 	intr->urb = urb;  in zd_usb_enable_int()
548 	spin_unlock_irq(&intr->lock);  in zd_usb_enable_int()
551 	intr->buffer = usb_alloc_coherent(udev, USB_MAX_EP_INT_BUFFER,  in zd_usb_enable_int()
552 					  GFP_KERNEL, &intr->buffer_dma);  in zd_usb_enable_int()
553 	if (!intr->buffer) {  in zd_usb_enable_int()
560 			 intr->buffer, USB_MAX_EP_INT_BUFFER,  in zd_usb_enable_int()
562 			 intr->interval);  in zd_usb_enable_int()
563 	urb->transfer_dma = intr->buffer_dma;  in zd_usb_enable_int()
566 	dev_dbg_f(zd_usb_dev(usb), "submit urb %p\n", intr->urb);  in zd_usb_enable_int()
577 			  intr->buffer, intr->buffer_dma);  in zd_usb_enable_int()
579 	spin_lock_irq(&intr->lock);  in zd_usb_enable_int()
580 	intr->urb = NULL;  in zd_usb_enable_int()
581 	spin_unlock_irq(&intr->lock);  in zd_usb_enable_int()
592 	struct zd_usb_interrupt *intr = &usb->intr;  in zd_usb_disable_int()  local
597 	spin_lock_irqsave(&intr->lock, flags);  in zd_usb_disable_int()
598 	urb = intr->urb;  in zd_usb_disable_int()
600 		spin_unlock_irqrestore(&intr->lock, flags);  in zd_usb_disable_int()
603 	intr->urb = NULL;  in zd_usb_disable_int()
604 	buffer = intr->buffer;  in zd_usb_disable_int()
605 	buffer_dma = intr->buffer_dma;  in zd_usb_disable_int()
606 	intr->buffer = NULL;  in zd_usb_disable_int()
607 	spin_unlock_irqrestore(&intr->lock, flags);  in zd_usb_disable_int()
1170 	struct zd_usb_interrupt *intr = &usb->intr;  in init_usb_interrupt()  local
1172 	spin_lock_init(&intr->lock);  in init_usb_interrupt()
1173 	intr->interval = int_urb_interval(zd_usb_to_usbdev(usb));  in init_usb_interrupt()
1174 	init_completion(&intr->read_regs.completion);  in init_usb_interrupt()
1175 	atomic_set(&intr->read_regs_enabled, 0);  in init_usb_interrupt()
1176 	intr->read_regs.cr_int_addr = cpu_to_le16((u16)CR_INTERRUPT);  in init_usb_interrupt()
1615 	struct zd_usb_interrupt *intr = &usb->intr;  in prepare_read_regs_int()  local
1617 	spin_lock_irq(&intr->lock);  in prepare_read_regs_int()
1618 	atomic_set(&intr->read_regs_enabled, 1);  in prepare_read_regs_int()
1619 	intr->read_regs.req = req;  in prepare_read_regs_int()
1620 	intr->read_regs.req_count = count;  in prepare_read_regs_int()
1621 	reinit_completion(&intr->read_regs.completion);  in prepare_read_regs_int()
1622 	spin_unlock_irq(&intr->lock);  in prepare_read_regs_int()
1627 	struct zd_usb_interrupt *intr = &usb->intr;  in disable_read_regs_int()  local
1629 	spin_lock_irq(&intr->lock);  in disable_read_regs_int()
1630 	atomic_set(&intr->read_regs_enabled, 0);  in disable_read_regs_int()
1631 	spin_unlock_irq(&intr->lock);  in disable_read_regs_int()
1638 	struct zd_usb_interrupt *intr = &usb->intr;  in check_read_regs()  local
1639 	struct read_regs_int *rr = &intr->read_regs;  in check_read_regs()
1679 	struct zd_usb_interrupt *intr = &usb->intr;  in get_results()  local
1680 	struct read_regs_int *rr = &intr->read_regs;  in get_results()
1683 	spin_lock_irq(&intr->lock);  in get_results()
1688 	*retry = !!intr->read_regs_int_overridden;  in get_results()
1704 	spin_unlock_irq(&intr->lock);  in get_results()
1769 	timeout = wait_for_completion_timeout(&usb->intr.read_regs.completion,  in zd_usb_ioread16v()