585 static int azx_get_delay_from_lpib(struct azx *chip, struct azx_dev *azx_dev,  in azx_get_delay_from_lpib()  argument
588 	struct snd_pcm_substream *substream = azx_dev->core.substream;  in azx_get_delay_from_lpib()
590 	unsigned int lpib_pos = azx_get_pos_lpib(chip, azx_dev);  in azx_get_delay_from_lpib()
598 		if (delay >= azx_dev->core.delay_negative_threshold)  in azx_get_delay_from_lpib()
601 			delay += azx_dev->core.bufsize;  in azx_get_delay_from_lpib()
604 	if (delay >= azx_dev->core.period_bytes) {  in azx_get_delay_from_lpib()
607 			 delay, azx_dev->core.period_bytes);  in azx_get_delay_from_lpib()
616 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
619 static int azx_position_check(struct azx *chip, struct azx_dev *azx_dev)  in azx_position_check()  argument
624 	ok = azx_position_ok(chip, azx_dev);  in azx_position_check()
626 		azx_dev->irq_pending = 0;  in azx_position_check()
630 		azx_dev->irq_pending = 1;  in azx_position_check()
650 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)  in azx_position_ok()  argument
652 	struct snd_pcm_substream *substream = azx_dev->core.substream;  in azx_position_ok()
659 	wallclk = azx_readl(chip, WALLCLK) - azx_dev->core.start_wallclk;  in azx_position_ok()
660 	if (wallclk < (azx_dev->core.period_wallclk * 2) / 3)  in azx_position_ok()
664 		pos = chip->get_position[stream](chip, azx_dev);  in azx_position_ok()
666 		pos = azx_get_pos_posbuf(chip, azx_dev);  in azx_position_ok()
674 			pos = azx_get_pos_lpib(chip, azx_dev);  in azx_position_ok()
683 	if (pos >= azx_dev->core.bufsize)  in azx_position_ok()
686 	if (WARN_ONCE(!azx_dev->core.period_bytes,  in azx_position_ok()
689 	if (wallclk < (azx_dev->core.period_wallclk * 5) / 4 &&  in azx_position_ok()
690 	    pos % azx_dev->core.period_bytes > azx_dev->core.period_bytes / 2)  in azx_position_ok()
693 	azx_dev->core.start_wallclk += wallclk;  in azx_position_ok()
695 	if (azx_dev->core.no_period_wakeup)  in azx_position_ok()
737 			struct azx_dev *azx_dev = stream_to_azx_dev(s);  in azx_irq_pending_work()  local
738 			if (!azx_dev->irq_pending ||  in azx_irq_pending_work()
742 			ok = azx_position_ok(chip, azx_dev);  in azx_irq_pending_work()
744 				azx_dev->irq_pending = 0;  in azx_irq_pending_work()
768 		struct azx_dev *azx_dev = stream_to_azx_dev(s);  in azx_clear_irq_pending()  local
769 		azx_dev->irq_pending = 0;  in azx_clear_irq_pending()
796 					 struct azx_dev *azx_dev)  in azx_via_get_position()  argument
802 	link_pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));  in azx_via_get_position()
803 	if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {  in azx_via_get_position()
812 	mod_dma_pos = le32_to_cpu(*azx_dev->core.posbuf);  in azx_via_get_position()
813 	mod_dma_pos %= azx_dev->core.period_bytes;  in azx_via_get_position()
815 	fifo_size = azx_stream(azx_dev)->fifo_size - 1;  in azx_via_get_position()
817 	if (azx_dev->insufficient) {  in azx_via_get_position()
822 		azx_dev->insufficient = 0;  in azx_via_get_position()
826 		mini_pos = azx_dev->core.bufsize + link_pos - fifo_size;  in azx_via_get_position()
831 	mod_mini_pos = mini_pos % azx_dev->core.period_bytes;  in azx_via_get_position()
832 	mod_link_pos = link_pos % azx_dev->core.period_bytes;  in azx_via_get_position()
838 		bound_pos = mini_pos - mod_mini_pos + azx_dev->core.period_bytes;  in azx_via_get_position()
839 		if (bound_pos >= azx_dev->core.bufsize)  in azx_via_get_position()
850 static unsigned int azx_get_pos_fifo(struct azx *chip, struct azx_dev *azx_dev)  in azx_get_pos_fifo()  argument
852 	struct snd_pcm_substream *substream = azx_dev->core.substream;  in azx_get_pos_fifo()
856 	pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));  in azx_get_pos_fifo()
862 	if (azx_dev->insufficient) {  in azx_get_pos_fifo()
867 			azx_dev->insufficient = 0;  in azx_get_pos_fifo()
874 			pos += azx_dev->core.bufsize;  in azx_get_pos_fifo()
881 static int azx_get_delay_from_fifo(struct azx *chip, struct azx_dev *azx_dev,  in azx_get_delay_from_fifo()  argument
884 	struct snd_pcm_substream *substream = azx_dev->core.substream;  in azx_get_delay_from_fifo()