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[ALSA] via82xx: tweak VT8251 workaround 

Move the workaround for the VT8251 up a bit, and check for STAT_EOL
rather than STAT_ACTIVE. This resolves issues some people were having
with certain ALSA clients (and allows the STAT_ACTIVE check to do what
it was intended to do).
This change was suggested by Andrew Daviel.

Signed-off-by: Bastiaan Jacques <b.jacques@planet.nl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Bastiaan Jacques 2006-04-20 12:27:09 +02:00 коммит произвёл Jaroslav Kysela
Родитель 1a183131fe
Коммит c6cc0e3b0c
1 изменённых файлов: 7 добавлений и 9 удалений
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12
sound/pci/via82xx.c
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@ -863,17 +863,15 @@ static snd_pcm_uframes_t snd_via8233_pcm_pointer(struct snd_pcm_substream *subst
if (!status) if (!status)
status = inb(VIADEV_REG(viadev, OFFSET_STATUS)); status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
/* An apparent bug in the 8251 is worked around by sending a
* REG_CTRL_START. */
if (chip->revision == VIA_REV_8251 && (status & VIA_REG_STAT_EOL))
snd_via82xx_pcm_trigger(substream, SNDRV_PCM_TRIGGER_START);
if (!(status & VIA_REG_STAT_ACTIVE)) { if (!(status & VIA_REG_STAT_ACTIVE)) {
/* An apparent bug in the 8251 is worked around by sending
* a REG_CTRL_START. */
if (chip->revision == VIA_REV_8251)
snd_via82xx_pcm_trigger(substream,
SNDRV_PCM_TRIGGER_START);
else {
res = 0; res = 0;
goto unlock; goto unlock;
} }
}
if (count & 0xffffff) { if (count & 0xffffff) {
idx = count >> 24; idx = count >> 24;
if (idx >= viadev->tbl_entries) { if (idx >= viadev->tbl_entries) {