373 	struct zd_usb_interrupt *intr = &usb->intr;  in handle_regs_int_override()  local
376 	spin_lock_irqsave(&intr->lock, flags);  in handle_regs_int_override()
377 	if (atomic_read(&intr->read_regs_enabled)) {  in handle_regs_int_override()
378 		atomic_set(&intr->read_regs_enabled, 0);  in handle_regs_int_override()
379 		intr->read_regs_int_overridden = 1;  in handle_regs_int_override()
380 		complete(&intr->read_regs.completion);  in handle_regs_int_override()
382 	spin_unlock_irqrestore(&intr->lock, flags);  in handle_regs_int_override()
388 	struct zd_usb_interrupt *intr = &usb->intr;  in handle_regs_int()  local
394 	spin_lock_irqsave(&intr->lock, flags);  in handle_regs_int()
404 	} else if (atomic_read(&intr->read_regs_enabled)) {  in handle_regs_int()
406 		intr->read_regs.length = urb->actual_length;  in handle_regs_int()
407 		if (len > sizeof(intr->read_regs.buffer))  in handle_regs_int()
408 			len = sizeof(intr->read_regs.buffer);  in handle_regs_int()
410 		memcpy(intr->read_regs.buffer, urb->transfer_buffer, len);  in handle_regs_int()
418 		if (!check_read_regs(usb, intr->read_regs.req,  in handle_regs_int()
419 						intr->read_regs.req_count))  in handle_regs_int()
422 		atomic_set(&intr->read_regs_enabled, 0);  in handle_regs_int()
423 		intr->read_regs_int_overridden = 0;  in handle_regs_int()
424 		complete(&intr->read_regs.completion);  in handle_regs_int()
430 	spin_unlock_irqrestore(&intr->lock, flags);  in handle_regs_int()
433 	if (int_num == CR_INTERRUPT && atomic_read(&intr->read_regs_enabled))  in handle_regs_int()
442 	struct zd_usb_interrupt *intr;  in int_urb_complete()  local
475 	intr = &usb->intr;  in int_urb_complete()
476 	if (hdr->id != USB_INT_ID_REGS && atomic_read(&intr->read_regs_enabled))  in int_urb_complete()
518 	struct zd_usb_interrupt *intr = &usb->intr;  in usb_int_enabled()  local
521 	spin_lock_irqsave(&intr->lock, flags);  in usb_int_enabled()
522 	urb = intr->urb;  in usb_int_enabled()
523 	spin_unlock_irqrestore(&intr->lock, flags);  in usb_int_enabled()
531 	struct zd_usb_interrupt *intr = &usb->intr;  in zd_usb_enable_int()  local
543 	spin_lock_irq(&intr->lock);  in zd_usb_enable_int()
544 	if (intr->urb) {  in zd_usb_enable_int()
545 		spin_unlock_irq(&intr->lock);  in zd_usb_enable_int()
549 	intr->urb = urb;  in zd_usb_enable_int()
550 	spin_unlock_irq(&intr->lock);  in zd_usb_enable_int()
553 	intr->buffer = usb_alloc_coherent(udev, USB_MAX_EP_INT_BUFFER,  in zd_usb_enable_int()
554 					  GFP_KERNEL, &intr->buffer_dma);  in zd_usb_enable_int()
555 	if (!intr->buffer) {  in zd_usb_enable_int()
562 			 intr->buffer, USB_MAX_EP_INT_BUFFER,  in zd_usb_enable_int()
564 			 intr->interval);  in zd_usb_enable_int()
565 	urb->transfer_dma = intr->buffer_dma;  in zd_usb_enable_int()
568 	dev_dbg_f(zd_usb_dev(usb), "submit urb %p\n", intr->urb);  in zd_usb_enable_int()
579 			  intr->buffer, intr->buffer_dma);  in zd_usb_enable_int()
581 	spin_lock_irq(&intr->lock);  in zd_usb_enable_int()
582 	intr->urb = NULL;  in zd_usb_enable_int()
583 	spin_unlock_irq(&intr->lock);  in zd_usb_enable_int()
594 	struct zd_usb_interrupt *intr = &usb->intr;  in zd_usb_disable_int()  local
599 	spin_lock_irqsave(&intr->lock, flags);  in zd_usb_disable_int()
600 	urb = intr->urb;  in zd_usb_disable_int()
602 		spin_unlock_irqrestore(&intr->lock, flags);  in zd_usb_disable_int()
605 	intr->urb = NULL;  in zd_usb_disable_int()
606 	buffer = intr->buffer;  in zd_usb_disable_int()
607 	buffer_dma = intr->buffer_dma;  in zd_usb_disable_int()
608 	intr->buffer = NULL;  in zd_usb_disable_int()
609 	spin_unlock_irqrestore(&intr->lock, flags);  in zd_usb_disable_int()
1173 	struct zd_usb_interrupt *intr = &usb->intr;  in init_usb_interrupt()  local
1175 	spin_lock_init(&intr->lock);  in init_usb_interrupt()
1176 	intr->interval = int_urb_interval(zd_usb_to_usbdev(usb));  in init_usb_interrupt()
1177 	init_completion(&intr->read_regs.completion);  in init_usb_interrupt()
1178 	atomic_set(&intr->read_regs_enabled, 0);  in init_usb_interrupt()
1179 	intr->read_regs.cr_int_addr = cpu_to_le16((u16)CR_INTERRUPT);  in init_usb_interrupt()
1621 	struct zd_usb_interrupt *intr = &usb->intr;  in prepare_read_regs_int()  local
1623 	spin_lock_irq(&intr->lock);  in prepare_read_regs_int()
1624 	atomic_set(&intr->read_regs_enabled, 1);  in prepare_read_regs_int()
1625 	intr->read_regs.req = req;  in prepare_read_regs_int()
1626 	intr->read_regs.req_count = count;  in prepare_read_regs_int()
1627 	reinit_completion(&intr->read_regs.completion);  in prepare_read_regs_int()
1628 	spin_unlock_irq(&intr->lock);  in prepare_read_regs_int()
1633 	struct zd_usb_interrupt *intr = &usb->intr;  in disable_read_regs_int()  local
1635 	spin_lock_irq(&intr->lock);  in disable_read_regs_int()
1636 	atomic_set(&intr->read_regs_enabled, 0);  in disable_read_regs_int()
1637 	spin_unlock_irq(&intr->lock);  in disable_read_regs_int()
1644 	struct zd_usb_interrupt *intr = &usb->intr;  in check_read_regs()  local
1645 	struct read_regs_int *rr = &intr->read_regs;  in check_read_regs()
1685 	struct zd_usb_interrupt *intr = &usb->intr;  in get_results()  local
1686 	struct read_regs_int *rr = &intr->read_regs;  in get_results()
1689 	spin_lock_irq(&intr->lock);  in get_results()
1694 	*retry = !!intr->read_regs_int_overridden;  in get_results()
1710 	spin_unlock_irq(&intr->lock);  in get_results()
1775 	timeout = wait_for_completion_timeout(&usb->intr.read_regs.completion,  in zd_usb_ioread16v()