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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: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2005-09-13 11:28:53 +02:00 committed by Jaroslav Kysela
parent 84802f0df3
commit e8dede5a13
1 changed files with 5 additions and 0 deletions
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5
sound/pci/hda/hda_intel.c
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@ -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;