360 	struct zd_usb_interrupt *intr = &usb->intr;  in handle_regs_int_override()  local
363 	spin_lock_irqsave(&intr->lock, flags);  in handle_regs_int_override()
364 	if (atomic_read(&intr->read_regs_enabled)) {  in handle_regs_int_override()
365 		atomic_set(&intr->read_regs_enabled, 0);  in handle_regs_int_override()
366 		intr->read_regs_int_overridden = 1;  in handle_regs_int_override()
367 		complete(&intr->read_regs.completion);  in handle_regs_int_override()
369 	spin_unlock_irqrestore(&intr->lock, flags);  in handle_regs_int_override()
375 	struct zd_usb_interrupt *intr = &usb->intr;  in handle_regs_int()  local
380 	spin_lock_irqsave(&intr->lock, flags);  in handle_regs_int()
390 	} else if (atomic_read(&intr->read_regs_enabled)) {  in handle_regs_int()
392 		intr->read_regs.length = urb->actual_length;  in handle_regs_int()
393 		if (len > sizeof(intr->read_regs.buffer))  in handle_regs_int()
394 			len = sizeof(intr->read_regs.buffer);  in handle_regs_int()
396 		memcpy(intr->read_regs.buffer, urb->transfer_buffer, len);  in handle_regs_int()
404 		if (!check_read_regs(usb, intr->read_regs.req,  in handle_regs_int()
405 						intr->read_regs.req_count))  in handle_regs_int()
408 		atomic_set(&intr->read_regs_enabled, 0);  in handle_regs_int()
409 		intr->read_regs_int_overridden = 0;  in handle_regs_int()
410 		complete(&intr->read_regs.completion);  in handle_regs_int()
416 	spin_unlock_irqrestore(&intr->lock, flags);  in handle_regs_int()
420 	    atomic_read(&intr->read_regs_enabled))  in handle_regs_int()
429 	struct zd_usb_interrupt *intr;  in int_urb_complete()  local
462 	intr = &usb->intr;  in int_urb_complete()
463 	if (hdr->id != USB_INT_ID_REGS && atomic_read(&intr->read_regs_enabled))  in int_urb_complete()
484 		/* TODO: add worker to reset intr->urb */  in int_urb_complete()
505 	struct zd_usb_interrupt *intr = &usb->intr;  in usb_int_enabled()  local
508 	spin_lock_irqsave(&intr->lock, flags);  in usb_int_enabled()
509 	urb = intr->urb;  in usb_int_enabled()
510 	spin_unlock_irqrestore(&intr->lock, flags);  in usb_int_enabled()
518 	struct zd_usb_interrupt *intr = &usb->intr;  in zd_usb_enable_int()  local
530 	spin_lock_irq(&intr->lock);  in zd_usb_enable_int()
531 	if (intr->urb) {  in zd_usb_enable_int()
532 		spin_unlock_irq(&intr->lock);  in zd_usb_enable_int()
536 	intr->urb = urb;  in zd_usb_enable_int()
537 	spin_unlock_irq(&intr->lock);  in zd_usb_enable_int()
540 	intr->buffer = usb_alloc_coherent(udev, USB_MAX_EP_INT_BUFFER,  in zd_usb_enable_int()
541 					  GFP_KERNEL, &intr->buffer_dma);  in zd_usb_enable_int()
542 	if (!intr->buffer) {  in zd_usb_enable_int()
549 			 intr->buffer, USB_MAX_EP_INT_BUFFER,  in zd_usb_enable_int()
551 			 intr->interval);  in zd_usb_enable_int()
552 	urb->transfer_dma = intr->buffer_dma;  in zd_usb_enable_int()
555 	dev_dbg_f(zd_usb_dev(usb), "submit urb %p\n", intr->urb);  in zd_usb_enable_int()
566 			  intr->buffer, intr->buffer_dma);  in zd_usb_enable_int()
568 	spin_lock_irq(&intr->lock);  in zd_usb_enable_int()
569 	intr->urb = NULL;  in zd_usb_enable_int()
570 	spin_unlock_irq(&intr->lock);  in zd_usb_enable_int()
581 	struct zd_usb_interrupt *intr = &usb->intr;  in zd_usb_disable_int()  local
586 	spin_lock_irqsave(&intr->lock, flags);  in zd_usb_disable_int()
587 	urb = intr->urb;  in zd_usb_disable_int()
589 		spin_unlock_irqrestore(&intr->lock, flags);  in zd_usb_disable_int()
592 	intr->urb = NULL;  in zd_usb_disable_int()
593 	buffer = intr->buffer;  in zd_usb_disable_int()
594 	buffer_dma = intr->buffer_dma;  in zd_usb_disable_int()
595 	intr->buffer = NULL;  in zd_usb_disable_int()
596 	spin_unlock_irqrestore(&intr->lock, flags);  in zd_usb_disable_int()
1158 	struct zd_usb_interrupt *intr = &usb->intr;  in init_usb_interrupt()  local
1160 	spin_lock_init(&intr->lock);  in init_usb_interrupt()
1161 	intr->interval = int_urb_interval(zd_usb_to_usbdev(usb));  in init_usb_interrupt()
1162 	init_completion(&intr->read_regs.completion);  in init_usb_interrupt()
1163 	atomic_set(&intr->read_regs_enabled, 0);  in init_usb_interrupt()
1164 	intr->read_regs.cr_int_addr = cpu_to_le16((u16)CR_INTERRUPT);  in init_usb_interrupt()
1602 	struct zd_usb_interrupt *intr = &usb->intr;  in prepare_read_regs_int()  local
1604 	spin_lock_irq(&intr->lock);  in prepare_read_regs_int()
1605 	atomic_set(&intr->read_regs_enabled, 1);  in prepare_read_regs_int()
1606 	intr->read_regs.req = req;  in prepare_read_regs_int()
1607 	intr->read_regs.req_count = count;  in prepare_read_regs_int()
1608 	reinit_completion(&intr->read_regs.completion);  in prepare_read_regs_int()
1609 	spin_unlock_irq(&intr->lock);  in prepare_read_regs_int()
1614 	struct zd_usb_interrupt *intr = &usb->intr;  in disable_read_regs_int()  local
1616 	spin_lock_irq(&intr->lock);  in disable_read_regs_int()
1617 	atomic_set(&intr->read_regs_enabled, 0);  in disable_read_regs_int()
1618 	spin_unlock_irq(&intr->lock);  in disable_read_regs_int()
1625 	struct zd_usb_interrupt *intr = &usb->intr;  in check_read_regs()  local
1626 	struct read_regs_int *rr = &intr->read_regs;  in check_read_regs()
1666 	struct zd_usb_interrupt *intr = &usb->intr;  in get_results()  local
1667 	struct read_regs_int *rr = &intr->read_regs;  in get_results()
1670 	spin_lock_irq(&intr->lock);  in get_results()
1675 	*retry = !!intr->read_regs_int_overridden;  in get_results()
1691 	spin_unlock_irq(&intr->lock);  in get_results()
1751 	time_left = wait_for_completion_timeout(&usb->intr.read_regs.completion,  in zd_usb_ioread16v()