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Commit e8dede5a authored by Takashi Iwai's avatar Takashi Iwai Committed by Jaroslav Kysela
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[ALSA] hda-intel - Disable DMA position auto-correction 



HDA Intel driver
Disable the auto-correction of DMA position temporarily.
It doesn't work as expected yet...

Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 84802f0d

sound/pci/hda/hda_intel.c

+5 −0
Original line number Diff line number Diff line
@@ -1137,6 +1137,7 @@ static snd_pcm_uframes_t azx_pcm_pointer(snd_pcm_substream_t *substream) 
		pos = azx_sd_readl(azx_dev, SD_LPIB);

		if (chip->position_fix == POS_FIX_FIFO)

			pos += azx_dev->fifo_size;

#if 0 /* disabled temprarily, auto-correction doesn't work well... */

		else if (chip->position_fix == POS_FIX_AUTO && azx_dev->period_updating) {

			/* check the validity of DMA position */

			unsigned int diff = 0;
@@ -1157,6 +1158,10 @@ static snd_pcm_uframes_t azx_pcm_pointer(snd_pcm_substream_t *substream) 
			}

			azx_dev->period_updating = 0;

		}

#else

		else if (chip->position_fix == POS_FIX_AUTO)

			pos += azx_dev->fifo_size;

#endif

	}

	if (pos >= azx_dev->bufsize)

		pos = 0;