180 				 struct cx231xx_dmaqueue *dma_q,  in buffer_filled()  argument
239 static inline void get_next_buf(struct cx231xx_dmaqueue *dma_q,  in get_next_buf()  argument
243 	    container_of(dma_q, struct cx231xx_video_mode, vidq);  in get_next_buf()
248 	if (list_empty(&dma_q->active)) {  in get_next_buf()
259 	*buf = list_entry(dma_q->active.next, struct cx231xx_buffer, vb.queue);  in get_next_buf()
278 	struct cx231xx_dmaqueue *dma_q = urb->context;  in cx231xx_isoc_copy()  local
320 		if (dma_q->is_partial_line) {  in cx231xx_isoc_copy()
322 			sav_eav = dma_q->last_sav;  in cx231xx_isoc_copy()
328 							  dma_q->partial_buf,  in cx231xx_isoc_copy()
336 			bytes_parsed += cx231xx_get_video_line(dev, dma_q,  in cx231xx_isoc_copy()
358 					dma_q, sav_eav,	/* SAV/EAV */  in cx231xx_isoc_copy()
366 		memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);  in cx231xx_isoc_copy()
375 	struct cx231xx_dmaqueue *dma_q = urb->context;  in cx231xx_bulk_copy()  local
399 		if (dma_q->is_partial_line) {  in cx231xx_bulk_copy()
401 			sav_eav = dma_q->last_sav;  in cx231xx_bulk_copy()
407 							  dma_q->partial_buf,  in cx231xx_bulk_copy()
415 			bytes_parsed += cx231xx_get_video_line(dev, dma_q,  in cx231xx_bulk_copy()
437 					dma_q, sav_eav,	/* SAV/EAV */  in cx231xx_bulk_copy()
445 		memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);  in cx231xx_bulk_copy()
512 			   struct cx231xx_dmaqueue *dma_q, u8 sav_eav,  in cx231xx_get_video_line()  argument
548 	dma_q->last_sav = sav_eav;  in cx231xx_get_video_line()
550 	bytes_copied = cx231xx_copy_video_line(dev, dma_q, p_buffer,  in cx231xx_get_video_line()
557 			    struct cx231xx_dmaqueue *dma_q, u8 *p_line,  in cx231xx_copy_video_line()  argument
564 	if (dma_q->current_field != field_number)  in cx231xx_copy_video_line()
565 		cx231xx_reset_video_buffer(dev, dma_q);  in cx231xx_copy_video_line()
574 	dma_q->current_field = field_number;  in cx231xx_copy_video_line()
576 	bytes_to_copy = dma_q->bytes_left_in_line;  in cx231xx_copy_video_line()
580 	if (dma_q->lines_completed >= dma_q->lines_per_field) {  in cx231xx_copy_video_line()
581 		dma_q->bytes_left_in_line -= bytes_to_copy;  in cx231xx_copy_video_line()
582 		dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0) ?  in cx231xx_copy_video_line()
587 	dma_q->is_partial_line = 1;  in cx231xx_copy_video_line()
592 		dma_q->bytes_left_in_line -= bytes_to_copy;  in cx231xx_copy_video_line()
593 		dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0)  in cx231xx_copy_video_line()
599 	cx231xx_do_copy(dev, dma_q, p_line, bytes_to_copy);  in cx231xx_copy_video_line()
601 	dma_q->pos += bytes_to_copy;  in cx231xx_copy_video_line()
602 	dma_q->bytes_left_in_line -= bytes_to_copy;  in cx231xx_copy_video_line()
604 	if (dma_q->bytes_left_in_line == 0) {  in cx231xx_copy_video_line()
605 		dma_q->bytes_left_in_line = _line_size;  in cx231xx_copy_video_line()
606 		dma_q->lines_completed++;  in cx231xx_copy_video_line()
607 		dma_q->is_partial_line = 0;  in cx231xx_copy_video_line()
609 		if (cx231xx_is_buffer_done(dev, dma_q) && buf) {  in cx231xx_copy_video_line()
610 			buffer_filled(dev, dma_q, buf);  in cx231xx_copy_video_line()
612 			dma_q->pos = 0;  in cx231xx_copy_video_line()
614 			dma_q->lines_completed = 0;  in cx231xx_copy_video_line()
622 				struct cx231xx_dmaqueue *dma_q)  in cx231xx_reset_video_buffer()  argument
627 	if (dma_q->current_field == 1) {  in cx231xx_reset_video_buffer()
628 		if (dma_q->lines_completed >= dma_q->lines_per_field)  in cx231xx_reset_video_buffer()
629 			dma_q->field1_done = 1;  in cx231xx_reset_video_buffer()
631 			dma_q->field1_done = 0;  in cx231xx_reset_video_buffer()
641 		get_next_buf(dma_q, &buf);  in cx231xx_reset_video_buffer()
643 		dma_q->pos = 0;  in cx231xx_reset_video_buffer()
644 		dma_q->field1_done = 0;  in cx231xx_reset_video_buffer()
645 		dma_q->current_field = -1;  in cx231xx_reset_video_buffer()
649 	dma_q->bytes_left_in_line = dev->width << 1;  in cx231xx_reset_video_buffer()
650 	dma_q->lines_completed = 0;  in cx231xx_reset_video_buffer()
653 int cx231xx_do_copy(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,  in cx231xx_do_copy()  argument
673 	current_line_bytes_copied = _line_size - dma_q->bytes_left_in_line;  in cx231xx_do_copy()
676 	offset = (dma_q->current_field == 1) ? 0 : _line_size;  in cx231xx_do_copy()
682 	startwrite += (dma_q->lines_completed * _line_size * 2);  in cx231xx_do_copy()
687 	lencopy = dma_q->bytes_left_in_line > bytes_to_copy ?  in cx231xx_do_copy()
688 		  bytes_to_copy : dma_q->bytes_left_in_line;  in cx231xx_do_copy()
710 u8 cx231xx_is_buffer_done(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q)  in cx231xx_is_buffer_done()  argument
715 	buffer_complete = ((dma_q->current_field == 2) &&  in cx231xx_is_buffer_done()
716 			   (dma_q->lines_completed >= dma_q->lines_per_field) &&  in cx231xx_is_buffer_done()
717 			    dma_q->field1_done);  in cx231xx_is_buffer_done()