178 				 struct cx231xx_dmaqueue *dma_q,  in buffer_filled()  argument
237 static inline void get_next_buf(struct cx231xx_dmaqueue *dma_q,  in get_next_buf()  argument
241 	    container_of(dma_q, struct cx231xx_video_mode, vidq);  in get_next_buf()
246 	if (list_empty(&dma_q->active)) {  in get_next_buf()
257 	*buf = list_entry(dma_q->active.next, struct cx231xx_buffer, vb.queue);  in get_next_buf()
276 	struct cx231xx_dmaqueue *dma_q = urb->context;  in cx231xx_isoc_copy()  local
318 		if (dma_q->is_partial_line) {  in cx231xx_isoc_copy()
320 			sav_eav = dma_q->last_sav;  in cx231xx_isoc_copy()
326 							  dma_q->partial_buf,  in cx231xx_isoc_copy()
334 			bytes_parsed += cx231xx_get_video_line(dev, dma_q,  in cx231xx_isoc_copy()
356 					dma_q, sav_eav,	/* SAV/EAV */  in cx231xx_isoc_copy()
364 		memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);  in cx231xx_isoc_copy()
373 	struct cx231xx_dmaqueue *dma_q = urb->context;  in cx231xx_bulk_copy()  local
397 		if (dma_q->is_partial_line) {  in cx231xx_bulk_copy()
399 			sav_eav = dma_q->last_sav;  in cx231xx_bulk_copy()
405 							  dma_q->partial_buf,  in cx231xx_bulk_copy()
413 			bytes_parsed += cx231xx_get_video_line(dev, dma_q,  in cx231xx_bulk_copy()
435 					dma_q, sav_eav,	/* SAV/EAV */  in cx231xx_bulk_copy()
443 		memcpy(dma_q->partial_buf, p_buffer + buffer_size - 4, 4);  in cx231xx_bulk_copy()
510 			   struct cx231xx_dmaqueue *dma_q, u8 sav_eav,  in cx231xx_get_video_line()  argument
546 	dma_q->last_sav = sav_eav;  in cx231xx_get_video_line()
548 	bytes_copied = cx231xx_copy_video_line(dev, dma_q, p_buffer,  in cx231xx_get_video_line()
555 			    struct cx231xx_dmaqueue *dma_q, u8 *p_line,  in cx231xx_copy_video_line()  argument
562 	if (dma_q->current_field != field_number)  in cx231xx_copy_video_line()
563 		cx231xx_reset_video_buffer(dev, dma_q);  in cx231xx_copy_video_line()
572 	dma_q->current_field = field_number;  in cx231xx_copy_video_line()
574 	bytes_to_copy = dma_q->bytes_left_in_line;  in cx231xx_copy_video_line()
578 	if (dma_q->lines_completed >= dma_q->lines_per_field) {  in cx231xx_copy_video_line()
579 		dma_q->bytes_left_in_line -= bytes_to_copy;  in cx231xx_copy_video_line()
580 		dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0) ?  in cx231xx_copy_video_line()
585 	dma_q->is_partial_line = 1;  in cx231xx_copy_video_line()
590 		dma_q->bytes_left_in_line -= bytes_to_copy;  in cx231xx_copy_video_line()
591 		dma_q->is_partial_line = (dma_q->bytes_left_in_line == 0)  in cx231xx_copy_video_line()
597 	cx231xx_do_copy(dev, dma_q, p_line, bytes_to_copy);  in cx231xx_copy_video_line()
599 	dma_q->pos += bytes_to_copy;  in cx231xx_copy_video_line()
600 	dma_q->bytes_left_in_line -= bytes_to_copy;  in cx231xx_copy_video_line()
602 	if (dma_q->bytes_left_in_line == 0) {  in cx231xx_copy_video_line()
603 		dma_q->bytes_left_in_line = _line_size;  in cx231xx_copy_video_line()
604 		dma_q->lines_completed++;  in cx231xx_copy_video_line()
605 		dma_q->is_partial_line = 0;  in cx231xx_copy_video_line()
607 		if (cx231xx_is_buffer_done(dev, dma_q) && buf) {  in cx231xx_copy_video_line()
608 			buffer_filled(dev, dma_q, buf);  in cx231xx_copy_video_line()
610 			dma_q->pos = 0;  in cx231xx_copy_video_line()
612 			dma_q->lines_completed = 0;  in cx231xx_copy_video_line()
620 				struct cx231xx_dmaqueue *dma_q)  in cx231xx_reset_video_buffer()  argument
625 	if (dma_q->current_field == 1) {  in cx231xx_reset_video_buffer()
626 		if (dma_q->lines_completed >= dma_q->lines_per_field)  in cx231xx_reset_video_buffer()
627 			dma_q->field1_done = 1;  in cx231xx_reset_video_buffer()
629 			dma_q->field1_done = 0;  in cx231xx_reset_video_buffer()
639 		get_next_buf(dma_q, &buf);  in cx231xx_reset_video_buffer()
641 		dma_q->pos = 0;  in cx231xx_reset_video_buffer()
642 		dma_q->field1_done = 0;  in cx231xx_reset_video_buffer()
643 		dma_q->current_field = -1;  in cx231xx_reset_video_buffer()
647 	dma_q->bytes_left_in_line = dev->width << 1;  in cx231xx_reset_video_buffer()
648 	dma_q->lines_completed = 0;  in cx231xx_reset_video_buffer()
651 int cx231xx_do_copy(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,  in cx231xx_do_copy()  argument
671 	current_line_bytes_copied = _line_size - dma_q->bytes_left_in_line;  in cx231xx_do_copy()
674 	offset = (dma_q->current_field == 1) ? 0 : _line_size;  in cx231xx_do_copy()
680 	startwrite += (dma_q->lines_completed * _line_size * 2);  in cx231xx_do_copy()
685 	lencopy = dma_q->bytes_left_in_line > bytes_to_copy ?  in cx231xx_do_copy()
686 		  bytes_to_copy : dma_q->bytes_left_in_line;  in cx231xx_do_copy()
708 u8 cx231xx_is_buffer_done(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q)  in cx231xx_is_buffer_done()  argument
713 	buffer_complete = ((dma_q->current_field == 2) &&  in cx231xx_is_buffer_done()
714 			   (dma_q->lines_completed >= dma_q->lines_per_field) &&  in cx231xx_is_buffer_done()
715 			    dma_q->field1_done);  in cx231xx_is_buffer_done()