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ALSA: hda-intel - fix wallclk variable update and condition 

This patch fixes thinko introduced in "last minutes" before commiting
of the last wallclk patch.

It also fixes the condition checking if the first period after last
wallclk update is processed. There is a little rounding error in
period_wallclk.

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Jaroslav Kysela 2010-06-02 13:29:17 +02:00
parent aef4b9aaae
commit edb39935c8
1 changed files with 2 additions and 2 deletions
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4
sound/pci/hda/hda_intel.c
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@ -1913,11 +1913,11 @@ static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
if (WARN_ONCE(!azx_dev->period_bytes,
"hda-intel: zero azx_dev->period_bytes"))
return -1; /* this shouldn't happen! */
if (wallclk <= azx_dev->period_wallclk &&
if (wallclk < (azx_dev->period_wallclk * 5) / 4 &&
pos % azx_dev->period_bytes > azx_dev->period_bytes / 2)
/* NG - it's below the first next period boundary */
return bdl_pos_adj[chip->dev_index] ? 0 : -1;
azx_dev->start_wallclk = wallclk;
azx_dev->start_wallclk += wallclk;
return 1; /* OK, it's fine */
}