165 				 struct cx231xx_dmaqueue *dma_q,  in buffer_filled()  argument
224 static inline void get_next_buf(struct cx231xx_dmaqueue *dma_q,  in get_next_buf()  argument
228 	    container_of(dma_q, struct cx231xx_video_mode, vidq);  in get_next_buf()
233 	if (list_empty(&dma_q->active)) {  in get_next_buf()
244 	*buf = list_entry(dma_q->active.next, struct cx231xx_buffer, vb.queue);  in get_next_buf()
263 	struct cx231xx_dmaqueue *dma_q = urb->context;  in cx231xx_isoc_copy()  local
305 		if (dma_q->is_partial_line) {  in cx231xx_isoc_copy()
307 			sav_eav = dma_q->last_sav;  in cx231xx_isoc_copy()
313 							  dma_q->partial_buf,  in cx231xx_isoc_copy()
321 			bytes_parsed += cx231xx_get_video_line(dev, dma_q,  in cx231xx_isoc_copy()
343 					dma_q, sav_eav,	/* SAV/EAV */  in cx231xx_isoc_copy()
351 		memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);  in cx231xx_isoc_copy()
360 	struct cx231xx_dmaqueue *dma_q = urb->context;  in cx231xx_bulk_copy()  local
384 		if (dma_q->is_partial_line) {  in cx231xx_bulk_copy()
386 			sav_eav = dma_q->last_sav;  in cx231xx_bulk_copy()
392 							  dma_q->partial_buf,  in cx231xx_bulk_copy()
400 			bytes_parsed += cx231xx_get_video_line(dev, dma_q,  in cx231xx_bulk_copy()
422 					dma_q, sav_eav,	/* SAV/EAV */  in cx231xx_bulk_copy()
430 		memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);  in cx231xx_bulk_copy()
497 			   struct cx231xx_dmaqueue *dma_q, u8 sav_eav,  in cx231xx_get_video_line()  argument
533 	dma_q->last_sav = sav_eav;  in cx231xx_get_video_line()
535 	bytes_copied = cx231xx_copy_video_line(dev, dma_q, p_buffer,  in cx231xx_get_video_line()
542 			    struct cx231xx_dmaqueue *dma_q, u8 *p_line,  in cx231xx_copy_video_line()  argument
549 	if (dma_q->current_field != field_number)  in cx231xx_copy_video_line()
550 		cx231xx_reset_video_buffer(dev, dma_q);  in cx231xx_copy_video_line()
559 	dma_q->current_field = field_number;  in cx231xx_copy_video_line()
561 	bytes_to_copy = dma_q->bytes_left_in_line;  in cx231xx_copy_video_line()
565 	if (dma_q->lines_completed >= dma_q->lines_per_field) {  in cx231xx_copy_video_line()
566 		dma_q->bytes_left_in_line -= bytes_to_copy;  in cx231xx_copy_video_line()
567 		dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0) ?  in cx231xx_copy_video_line()
572 	dma_q->is_partial_line = 1;  in cx231xx_copy_video_line()
577 		dma_q->bytes_left_in_line -= bytes_to_copy;  in cx231xx_copy_video_line()
578 		dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0)  in cx231xx_copy_video_line()
584 	cx231xx_do_copy(dev, dma_q, p_line, bytes_to_copy);  in cx231xx_copy_video_line()
586 	dma_q->pos += bytes_to_copy;  in cx231xx_copy_video_line()
587 	dma_q->bytes_left_in_line -= bytes_to_copy;  in cx231xx_copy_video_line()
589 	if (dma_q->bytes_left_in_line == 0) {  in cx231xx_copy_video_line()
590 		dma_q->bytes_left_in_line = _line_size;  in cx231xx_copy_video_line()
591 		dma_q->lines_completed++;  in cx231xx_copy_video_line()
592 		dma_q->is_partial_line = 0;  in cx231xx_copy_video_line()
594 		if (cx231xx_is_buffer_done(dev, dma_q) && buf) {  in cx231xx_copy_video_line()
595 			buffer_filled(dev, dma_q, buf);  in cx231xx_copy_video_line()
597 			dma_q->pos = 0;  in cx231xx_copy_video_line()
599 			dma_q->lines_completed = 0;  in cx231xx_copy_video_line()
607 				struct cx231xx_dmaqueue *dma_q)  in cx231xx_reset_video_buffer()  argument
612 	if (dma_q->current_field == 1) {  in cx231xx_reset_video_buffer()
613 		if (dma_q->lines_completed >= dma_q->lines_per_field)  in cx231xx_reset_video_buffer()
614 			dma_q->field1_done = 1;  in cx231xx_reset_video_buffer()
616 			dma_q->field1_done = 0;  in cx231xx_reset_video_buffer()
626 		get_next_buf(dma_q, &buf);  in cx231xx_reset_video_buffer()
628 		dma_q->pos = 0;  in cx231xx_reset_video_buffer()
629 		dma_q->field1_done = 0;  in cx231xx_reset_video_buffer()
630 		dma_q->current_field = -1;  in cx231xx_reset_video_buffer()
634 	dma_q->bytes_left_in_line = dev->width << 1;  in cx231xx_reset_video_buffer()
635 	dma_q->lines_completed = 0;  in cx231xx_reset_video_buffer()
638 int cx231xx_do_copy(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,  in cx231xx_do_copy()  argument
658 	current_line_bytes_copied = _line_size - dma_q->bytes_left_in_line;  in cx231xx_do_copy()
661 	offset = (dma_q->current_field == 1) ? 0 : _line_size;  in cx231xx_do_copy()
667 	startwrite += (dma_q->lines_completed * _line_size * 2);  in cx231xx_do_copy()
672 	lencopy = dma_q->bytes_left_in_line > bytes_to_copy ?  in cx231xx_do_copy()
673 		  bytes_to_copy : dma_q->bytes_left_in_line;  in cx231xx_do_copy()
695 u8 cx231xx_is_buffer_done(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q)  in cx231xx_is_buffer_done()  argument
700 	buffer_complete = ((dma_q->current_field == 2) &&  in cx231xx_is_buffer_done()
701 			   (dma_q->lines_completed >= dma_q->lines_per_field) &&  in cx231xx_is_buffer_done()
702 			    dma_q->field1_done);  in cx231xx_is_buffer_done()