616 static int azx_get_delay_from_lpib(struct azx *chip, struct azx_dev *azx_dev,  in azx_get_delay_from_lpib()  argument
619 	struct snd_pcm_substream *substream = azx_dev->core.substream;  in azx_get_delay_from_lpib()
621 	unsigned int lpib_pos = azx_get_pos_lpib(chip, azx_dev);  in azx_get_delay_from_lpib()
629 		if (delay >= azx_dev->core.delay_negative_threshold)  in azx_get_delay_from_lpib()
632 			delay += azx_dev->core.bufsize;  in azx_get_delay_from_lpib()
635 	if (delay >= azx_dev->core.period_bytes) {  in azx_get_delay_from_lpib()
638 			 delay, azx_dev->core.period_bytes);  in azx_get_delay_from_lpib()
647 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
650 static int azx_position_check(struct azx *chip, struct azx_dev *azx_dev)  in azx_position_check()  argument
655 	ok = azx_position_ok(chip, azx_dev);  in azx_position_check()
657 		azx_dev->irq_pending = 0;  in azx_position_check()
661 		azx_dev->irq_pending = 1;  in azx_position_check()
681 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)  in azx_position_ok()  argument
683 	struct snd_pcm_substream *substream = azx_dev->core.substream;  in azx_position_ok()
690 	wallclk = azx_readl(chip, WALLCLK) - azx_dev->core.start_wallclk;  in azx_position_ok()
691 	if (wallclk < (azx_dev->core.period_wallclk * 2) / 3)  in azx_position_ok()
695 		pos = chip->get_position[stream](chip, azx_dev);  in azx_position_ok()
697 		pos = azx_get_pos_posbuf(chip, azx_dev);  in azx_position_ok()
705 			pos = azx_get_pos_lpib(chip, azx_dev);  in azx_position_ok()
714 	if (pos >= azx_dev->core.bufsize)  in azx_position_ok()
717 	if (WARN_ONCE(!azx_dev->core.period_bytes,  in azx_position_ok()
720 	if (wallclk < (azx_dev->core.period_wallclk * 5) / 4 &&  in azx_position_ok()
721 	    pos % azx_dev->core.period_bytes > azx_dev->core.period_bytes / 2)  in azx_position_ok()
724 	azx_dev->core.start_wallclk += wallclk;  in azx_position_ok()
726 	if (azx_dev->core.no_period_wakeup)  in azx_position_ok()
768 			struct azx_dev *azx_dev = stream_to_azx_dev(s);  in azx_irq_pending_work()  local
769 			if (!azx_dev->irq_pending ||  in azx_irq_pending_work()
773 			ok = azx_position_ok(chip, azx_dev);  in azx_irq_pending_work()
775 				azx_dev->irq_pending = 0;  in azx_irq_pending_work()
799 		struct azx_dev *azx_dev = stream_to_azx_dev(s);  in azx_clear_irq_pending()  local
800 		azx_dev->irq_pending = 0;  in azx_clear_irq_pending()
827 					 struct azx_dev *azx_dev)  in azx_via_get_position()  argument
833 	link_pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));  in azx_via_get_position()
834 	if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {  in azx_via_get_position()
843 	mod_dma_pos = le32_to_cpu(*azx_dev->core.posbuf);  in azx_via_get_position()
844 	mod_dma_pos %= azx_dev->core.period_bytes;  in azx_via_get_position()
846 	fifo_size = azx_stream(azx_dev)->fifo_size - 1;  in azx_via_get_position()
848 	if (azx_dev->insufficient) {  in azx_via_get_position()
853 		azx_dev->insufficient = 0;  in azx_via_get_position()
857 		mini_pos = azx_dev->core.bufsize + link_pos - fifo_size;  in azx_via_get_position()
862 	mod_mini_pos = mini_pos % azx_dev->core.period_bytes;  in azx_via_get_position()
863 	mod_link_pos = link_pos % azx_dev->core.period_bytes;  in azx_via_get_position()
869 		bound_pos = mini_pos - mod_mini_pos + azx_dev->core.period_bytes;  in azx_via_get_position()
870 		if (bound_pos >= azx_dev->core.bufsize)  in azx_via_get_position()
881 static unsigned int azx_get_pos_fifo(struct azx *chip, struct azx_dev *azx_dev)  in azx_get_pos_fifo()  argument
883 	struct snd_pcm_substream *substream = azx_dev->core.substream;  in azx_get_pos_fifo()
887 	pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));  in azx_get_pos_fifo()
893 	if (azx_dev->insufficient) {  in azx_get_pos_fifo()
898 			azx_dev->insufficient = 0;  in azx_get_pos_fifo()
905 			pos += azx_dev->core.bufsize;  in azx_get_pos_fifo()
912 static int azx_get_delay_from_fifo(struct azx *chip, struct azx_dev *azx_dev,  in azx_get_delay_from_fifo()  argument
915 	struct snd_pcm_substream *substream = azx_dev->core.substream;  in azx_get_delay_from_fifo()