361 	struct zd_usb_interrupt *intr = &usb->intr;  in handle_regs_int_override()  local
364 	spin_lock_irqsave(&intr->lock, flags);  in handle_regs_int_override()
365 	if (atomic_read(&intr->read_regs_enabled)) {  in handle_regs_int_override()
366 		atomic_set(&intr->read_regs_enabled, 0);  in handle_regs_int_override()
367 		intr->read_regs_int_overridden = 1;  in handle_regs_int_override()
368 		complete(&intr->read_regs.completion);  in handle_regs_int_override()
370 	spin_unlock_irqrestore(&intr->lock, flags);  in handle_regs_int_override()
376 	struct zd_usb_interrupt *intr = &usb->intr;  in handle_regs_int()  local
382 	spin_lock_irqsave(&intr->lock, flags);  in handle_regs_int()
392 	} else if (atomic_read(&intr->read_regs_enabled)) {  in handle_regs_int()
394 		intr->read_regs.length = urb->actual_length;  in handle_regs_int()
395 		if (len > sizeof(intr->read_regs.buffer))  in handle_regs_int()
396 			len = sizeof(intr->read_regs.buffer);  in handle_regs_int()
398 		memcpy(intr->read_regs.buffer, urb->transfer_buffer, len);  in handle_regs_int()
406 		if (!check_read_regs(usb, intr->read_regs.req,  in handle_regs_int()
407 						intr->read_regs.req_count))  in handle_regs_int()
410 		atomic_set(&intr->read_regs_enabled, 0);  in handle_regs_int()
411 		intr->read_regs_int_overridden = 0;  in handle_regs_int()
412 		complete(&intr->read_regs.completion);  in handle_regs_int()
418 	spin_unlock_irqrestore(&intr->lock, flags);  in handle_regs_int()
421 	if (int_num == CR_INTERRUPT && atomic_read(&intr->read_regs_enabled))  in handle_regs_int()
430 	struct zd_usb_interrupt *intr;  in int_urb_complete()  local
463 	intr = &usb->intr;  in int_urb_complete()
464 	if (hdr->id != USB_INT_ID_REGS && atomic_read(&intr->read_regs_enabled))  in int_urb_complete()
506 	struct zd_usb_interrupt *intr = &usb->intr;  in usb_int_enabled()  local
509 	spin_lock_irqsave(&intr->lock, flags);  in usb_int_enabled()
510 	urb = intr->urb;  in usb_int_enabled()
511 	spin_unlock_irqrestore(&intr->lock, flags);  in usb_int_enabled()
519 	struct zd_usb_interrupt *intr = &usb->intr;  in zd_usb_enable_int()  local
531 	spin_lock_irq(&intr->lock);  in zd_usb_enable_int()
532 	if (intr->urb) {  in zd_usb_enable_int()
533 		spin_unlock_irq(&intr->lock);  in zd_usb_enable_int()
537 	intr->urb = urb;  in zd_usb_enable_int()
538 	spin_unlock_irq(&intr->lock);  in zd_usb_enable_int()
541 	intr->buffer = usb_alloc_coherent(udev, USB_MAX_EP_INT_BUFFER,  in zd_usb_enable_int()
542 					  GFP_KERNEL, &intr->buffer_dma);  in zd_usb_enable_int()
543 	if (!intr->buffer) {  in zd_usb_enable_int()
550 			 intr->buffer, USB_MAX_EP_INT_BUFFER,  in zd_usb_enable_int()
552 			 intr->interval);  in zd_usb_enable_int()
553 	urb->transfer_dma = intr->buffer_dma;  in zd_usb_enable_int()
556 	dev_dbg_f(zd_usb_dev(usb), "submit urb %p\n", intr->urb);  in zd_usb_enable_int()
567 			  intr->buffer, intr->buffer_dma);  in zd_usb_enable_int()
569 	spin_lock_irq(&intr->lock);  in zd_usb_enable_int()
570 	intr->urb = NULL;  in zd_usb_enable_int()
571 	spin_unlock_irq(&intr->lock);  in zd_usb_enable_int()
582 	struct zd_usb_interrupt *intr = &usb->intr;  in zd_usb_disable_int()  local
587 	spin_lock_irqsave(&intr->lock, flags);  in zd_usb_disable_int()
588 	urb = intr->urb;  in zd_usb_disable_int()
590 		spin_unlock_irqrestore(&intr->lock, flags);  in zd_usb_disable_int()
593 	intr->urb = NULL;  in zd_usb_disable_int()
594 	buffer = intr->buffer;  in zd_usb_disable_int()
595 	buffer_dma = intr->buffer_dma;  in zd_usb_disable_int()
596 	intr->buffer = NULL;  in zd_usb_disable_int()
597 	spin_unlock_irqrestore(&intr->lock, flags);  in zd_usb_disable_int()
1161 	struct zd_usb_interrupt *intr = &usb->intr;  in init_usb_interrupt()  local
1163 	spin_lock_init(&intr->lock);  in init_usb_interrupt()
1164 	intr->interval = int_urb_interval(zd_usb_to_usbdev(usb));  in init_usb_interrupt()
1165 	init_completion(&intr->read_regs.completion);  in init_usb_interrupt()
1166 	atomic_set(&intr->read_regs_enabled, 0);  in init_usb_interrupt()
1167 	intr->read_regs.cr_int_addr = cpu_to_le16((u16)CR_INTERRUPT);  in init_usb_interrupt()
1604 	struct zd_usb_interrupt *intr = &usb->intr;  in prepare_read_regs_int()  local
1606 	spin_lock_irq(&intr->lock);  in prepare_read_regs_int()
1607 	atomic_set(&intr->read_regs_enabled, 1);  in prepare_read_regs_int()
1608 	intr->read_regs.req = req;  in prepare_read_regs_int()
1609 	intr->read_regs.req_count = count;  in prepare_read_regs_int()
1610 	reinit_completion(&intr->read_regs.completion);  in prepare_read_regs_int()
1611 	spin_unlock_irq(&intr->lock);  in prepare_read_regs_int()
1616 	struct zd_usb_interrupt *intr = &usb->intr;  in disable_read_regs_int()  local
1618 	spin_lock_irq(&intr->lock);  in disable_read_regs_int()
1619 	atomic_set(&intr->read_regs_enabled, 0);  in disable_read_regs_int()
1620 	spin_unlock_irq(&intr->lock);  in disable_read_regs_int()
1627 	struct zd_usb_interrupt *intr = &usb->intr;  in check_read_regs()  local
1628 	struct read_regs_int *rr = &intr->read_regs;  in check_read_regs()
1668 	struct zd_usb_interrupt *intr = &usb->intr;  in get_results()  local
1669 	struct read_regs_int *rr = &intr->read_regs;  in get_results()
1672 	spin_lock_irq(&intr->lock);  in get_results()
1677 	*retry = !!intr->read_regs_int_overridden;  in get_results()
1693 	spin_unlock_irq(&intr->lock);  in get_results()
1758 	timeout = wait_for_completion_timeout(&usb->intr.read_regs.completion,  in zd_usb_ioread16v()